./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/list-simple/dll2n_update_all.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-simple/dll2n_update_all.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c46cc56772f2c3f0b073640343b328fb3b128ed13803ffe5a04f6290fe624494 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 20:22:24,108 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 20:22:24,111 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 20:22:24,173 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 20:22:24,174 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 20:22:24,179 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 20:22:24,182 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 20:22:24,186 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 20:22:24,190 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 20:22:24,199 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 20:22:24,200 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 20:22:24,203 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 20:22:24,204 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 20:22:24,208 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 20:22:24,211 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 20:22:24,217 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 20:22:24,219 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 20:22:24,220 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 20:22:24,223 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 20:22:24,233 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 20:22:24,236 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 20:22:24,237 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 20:22:24,241 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 20:22:24,243 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 20:22:24,254 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 20:22:24,255 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 20:22:24,255 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 20:22:24,258 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 20:22:24,259 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 20:22:24,260 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 20:22:24,261 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 20:22:24,262 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 20:22:24,265 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 20:22:24,266 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 20:22:24,268 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 20:22:24,269 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 20:22:24,270 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 20:22:24,270 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 20:22:24,270 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 20:22:24,271 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 20:22:24,272 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 20:22:24,274 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2021-11-25 20:22:24,337 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 20:22:24,337 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 20:22:24,338 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-25 20:22:24,338 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-25 20:22:24,340 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 20:22:24,340 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-25 20:22:24,340 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-25 20:22:24,340 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-25 20:22:24,341 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-25 20:22:24,341 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-25 20:22:24,342 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-25 20:22:24,343 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-25 20:22:24,343 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-25 20:22:24,343 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-25 20:22:24,344 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-25 20:22:24,344 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-25 20:22:24,344 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-25 20:22:24,344 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-25 20:22:24,345 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-25 20:22:24,346 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-25 20:22:24,346 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 20:22:24,346 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-25 20:22:24,347 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-25 20:22:24,349 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-25 20:22:24,349 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-25 20:22:24,349 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 20:22:24,350 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-25 20:22:24,350 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-25 20:22:24,350 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-25 20:22:24,351 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 20:22:24,351 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-25 20:22:24,351 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-25 20:22:24,352 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 20:22:24,352 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 20:22:24,352 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-25 20:22:24,352 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 20:22:24,353 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 20:22:24,353 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 20:22:24,353 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-25 20:22:24,354 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-25 20:22:24,354 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-25 20:22:24,354 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-25 20:22:24,354 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c46cc56772f2c3f0b073640343b328fb3b128ed13803ffe5a04f6290fe624494 [2021-11-25 20:22:24,708 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 20:22:24,735 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 20:22:24,738 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 20:22:24,740 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 20:22:24,741 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 20:22:24,742 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/../../sv-benchmarks/c/list-simple/dll2n_update_all.i [2021-11-25 20:22:24,831 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/data/aa6d741f6/fc76875efa5445c1b9b1ea04801cdbd8/FLAGd83020fa2 [2021-11-25 20:22:25,582 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 20:22:25,583 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/sv-benchmarks/c/list-simple/dll2n_update_all.i [2021-11-25 20:22:25,625 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/data/aa6d741f6/fc76875efa5445c1b9b1ea04801cdbd8/FLAGd83020fa2 [2021-11-25 20:22:25,832 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/data/aa6d741f6/fc76875efa5445c1b9b1ea04801cdbd8 [2021-11-25 20:22:25,837 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 20:22:25,838 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 20:22:25,840 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 20:22:25,841 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 20:22:25,845 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 20:22:25,846 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:22:25" (1/1) ... [2021-11-25 20:22:25,847 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19b60c8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:22:25, skipping insertion in model container [2021-11-25 20:22:25,848 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:22:25" (1/1) ... [2021-11-25 20:22:25,856 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 20:22:25,903 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 20:22:26,395 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/sv-benchmarks/c/list-simple/dll2n_update_all.i[24455,24468] [2021-11-25 20:22:26,402 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 20:22:26,417 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 20:22:26,463 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/sv-benchmarks/c/list-simple/dll2n_update_all.i[24455,24468] [2021-11-25 20:22:26,464 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 20:22:26,500 INFO L208 MainTranslator]: Completed translation [2021-11-25 20:22:26,501 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:22:26 WrapperNode [2021-11-25 20:22:26,501 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 20:22:26,502 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 20:22:26,502 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 20:22:26,503 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 20:22:26,512 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:22:26" (1/1) ... [2021-11-25 20:22:26,530 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:22:26" (1/1) ... [2021-11-25 20:22:26,579 INFO L137 Inliner]: procedures = 126, calls = 27, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 114 [2021-11-25 20:22:26,581 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 20:22:26,582 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 20:22:26,582 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 20:22:26,583 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 20:22:26,594 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:22:26" (1/1) ... [2021-11-25 20:22:26,596 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:22:26" (1/1) ... [2021-11-25 20:22:26,618 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:22:26" (1/1) ... [2021-11-25 20:22:26,627 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:22:26" (1/1) ... [2021-11-25 20:22:26,636 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:22:26" (1/1) ... [2021-11-25 20:22:26,652 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:22:26" (1/1) ... [2021-11-25 20:22:26,655 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:22:26" (1/1) ... [2021-11-25 20:22:26,658 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 20:22:26,659 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 20:22:26,659 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 20:22:26,660 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 20:22:26,661 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:22:26" (1/1) ... [2021-11-25 20:22:26,679 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 20:22:26,695 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:22:26,710 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-25 20:22:26,720 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-25 20:22:26,759 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2021-11-25 20:22:26,759 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2021-11-25 20:22:26,759 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-25 20:22:26,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-25 20:22:26,760 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-25 20:22:26,760 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-25 20:22:26,760 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-25 20:22:26,760 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-25 20:22:26,760 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-25 20:22:26,760 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-25 20:22:26,761 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 20:22:26,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 20:22:26,879 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 20:22:26,881 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 20:22:26,926 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2021-11-25 20:22:27,187 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 20:22:27,245 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 20:22:27,245 INFO L301 CfgBuilder]: Removed 6 assume(true) statements. [2021-11-25 20:22:27,248 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:22:27 BoogieIcfgContainer [2021-11-25 20:22:27,249 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 20:22:27,251 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-25 20:22:27,251 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-25 20:22:27,255 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-25 20:22:27,255 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 08:22:25" (1/3) ... [2021-11-25 20:22:27,256 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d9b526d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:22:27, skipping insertion in model container [2021-11-25 20:22:27,256 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:22:26" (2/3) ... [2021-11-25 20:22:27,257 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d9b526d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:22:27, skipping insertion in model container [2021-11-25 20:22:27,257 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:22:27" (3/3) ... [2021-11-25 20:22:27,258 INFO L111 eAbstractionObserver]: Analyzing ICFG dll2n_update_all.i [2021-11-25 20:22:27,265 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-25 20:22:27,265 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 23 error locations. [2021-11-25 20:22:27,323 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-25 20:22:27,331 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-25 20:22:27,331 INFO L340 AbstractCegarLoop]: Starting to check reachability of 23 error locations. [2021-11-25 20:22:27,349 INFO L276 IsEmpty]: Start isEmpty. Operand has 52 states, 27 states have (on average 2.185185185185185) internal successors, (59), 50 states have internal predecessors, (59), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:22:27,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-25 20:22:27,359 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:22:27,359 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-11-25 20:22:27,360 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 19 more)] === [2021-11-25 20:22:27,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:22:27,367 INFO L85 PathProgramCache]: Analyzing trace with hash 5795537, now seen corresponding path program 1 times [2021-11-25 20:22:27,409 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:22:27,409 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273790477] [2021-11-25 20:22:27,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:22:27,411 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:22:27,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:22:27,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:22:27,713 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:22:27,713 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273790477] [2021-11-25 20:22:27,714 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [273790477] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:22:27,714 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:22:27,714 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-25 20:22:27,716 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589944100] [2021-11-25 20:22:27,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:22:27,722 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:22:27,723 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:22:27,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:22:27,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:22:27,772 INFO L87 Difference]: Start difference. First operand has 52 states, 27 states have (on average 2.185185185185185) internal successors, (59), 50 states have internal predecessors, (59), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:22:27,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:22:27,989 INFO L93 Difference]: Finished difference Result 82 states and 94 transitions. [2021-11-25 20:22:27,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:22:27,993 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2021-11-25 20:22:27,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:22:28,004 INFO L225 Difference]: With dead ends: 82 [2021-11-25 20:22:28,004 INFO L226 Difference]: Without dead ends: 77 [2021-11-25 20:22:28,006 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:22:28,011 INFO L933 BasicCegarLoop]: 47 mSDtfsCounter, 49 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-25 20:22:28,013 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [49 Valid, 65 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-25 20:22:28,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2021-11-25 20:22:28,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 45. [2021-11-25 20:22:28,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 25 states have (on average 2.04) internal successors, (51), 44 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:22:28,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 51 transitions. [2021-11-25 20:22:28,060 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 51 transitions. Word has length 4 [2021-11-25 20:22:28,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:22:28,060 INFO L470 AbstractCegarLoop]: Abstraction has 45 states and 51 transitions. [2021-11-25 20:22:28,061 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:22:28,061 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 51 transitions. [2021-11-25 20:22:28,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-25 20:22:28,061 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:22:28,062 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-11-25 20:22:28,062 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-25 20:22:28,063 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 19 more)] === [2021-11-25 20:22:28,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:22:28,069 INFO L85 PathProgramCache]: Analyzing trace with hash 5795538, now seen corresponding path program 1 times [2021-11-25 20:22:28,069 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:22:28,070 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490800953] [2021-11-25 20:22:28,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:22:28,070 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:22:28,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:22:28,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:22:28,151 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:22:28,152 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490800953] [2021-11-25 20:22:28,152 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1490800953] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:22:28,152 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:22:28,153 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-25 20:22:28,153 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635620574] [2021-11-25 20:22:28,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:22:28,156 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:22:28,157 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:22:28,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:22:28,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:22:28,159 INFO L87 Difference]: Start difference. First operand 45 states and 51 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:22:28,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:22:28,305 INFO L93 Difference]: Finished difference Result 74 states and 85 transitions. [2021-11-25 20:22:28,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:22:28,307 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2021-11-25 20:22:28,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:22:28,310 INFO L225 Difference]: With dead ends: 74 [2021-11-25 20:22:28,311 INFO L226 Difference]: Without dead ends: 74 [2021-11-25 20:22:28,311 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:22:28,313 INFO L933 BasicCegarLoop]: 47 mSDtfsCounter, 45 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-25 20:22:28,314 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [45 Valid, 66 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-25 20:22:28,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2021-11-25 20:22:28,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 42. [2021-11-25 20:22:28,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 25 states have (on average 1.92) internal successors, (48), 41 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:22:28,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 48 transitions. [2021-11-25 20:22:28,323 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 48 transitions. Word has length 4 [2021-11-25 20:22:28,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:22:28,323 INFO L470 AbstractCegarLoop]: Abstraction has 42 states and 48 transitions. [2021-11-25 20:22:28,324 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:22:28,324 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 48 transitions. [2021-11-25 20:22:28,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-25 20:22:28,325 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:22:28,325 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-25 20:22:28,325 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-25 20:22:28,325 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr8REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 19 more)] === [2021-11-25 20:22:28,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:22:28,326 INFO L85 PathProgramCache]: Analyzing trace with hash 184343024, now seen corresponding path program 1 times [2021-11-25 20:22:28,326 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:22:28,327 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1626147788] [2021-11-25 20:22:28,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:22:28,327 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:22:28,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:22:28,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:22:28,358 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:22:28,358 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1626147788] [2021-11-25 20:22:28,358 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1626147788] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:22:28,358 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:22:28,359 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-25 20:22:28,359 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718846747] [2021-11-25 20:22:28,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:22:28,360 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:22:28,360 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:22:28,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:22:28,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:22:28,361 INFO L87 Difference]: Start difference. First operand 42 states and 48 transitions. Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:22:28,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:22:28,397 INFO L93 Difference]: Finished difference Result 52 states and 59 transitions. [2021-11-25 20:22:28,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:22:28,398 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-11-25 20:22:28,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:22:28,399 INFO L225 Difference]: With dead ends: 52 [2021-11-25 20:22:28,399 INFO L226 Difference]: Without dead ends: 52 [2021-11-25 20:22:28,399 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:22:28,401 INFO L933 BasicCegarLoop]: 33 mSDtfsCounter, 10 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-25 20:22:28,402 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 66 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-25 20:22:28,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2021-11-25 20:22:28,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 43. [2021-11-25 20:22:28,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 26 states have (on average 1.8846153846153846) internal successors, (49), 42 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:22:28,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 49 transitions. [2021-11-25 20:22:28,410 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 49 transitions. Word has length 5 [2021-11-25 20:22:28,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:22:28,410 INFO L470 AbstractCegarLoop]: Abstraction has 43 states and 49 transitions. [2021-11-25 20:22:28,410 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:22:28,411 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 49 transitions. [2021-11-25 20:22:28,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-25 20:22:28,411 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:22:28,411 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:22:28,412 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-25 20:22:28,412 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 19 more)] === [2021-11-25 20:22:28,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:22:28,413 INFO L85 PathProgramCache]: Analyzing trace with hash 770785749, now seen corresponding path program 1 times [2021-11-25 20:22:28,413 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:22:28,413 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307383082] [2021-11-25 20:22:28,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:22:28,414 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:22:28,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:22:28,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:22:28,530 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:22:28,530 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307383082] [2021-11-25 20:22:28,530 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1307383082] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:22:28,531 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:22:28,531 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-25 20:22:28,531 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386700568] [2021-11-25 20:22:28,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:22:28,532 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:22:28,532 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:22:28,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:22:28,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:22:28,533 INFO L87 Difference]: Start difference. First operand 43 states and 49 transitions. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:22:28,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:22:28,603 INFO L93 Difference]: Finished difference Result 49 states and 55 transitions. [2021-11-25 20:22:28,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:22:28,606 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-11-25 20:22:28,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:22:28,607 INFO L225 Difference]: With dead ends: 49 [2021-11-25 20:22:28,607 INFO L226 Difference]: Without dead ends: 49 [2021-11-25 20:22:28,608 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:22:28,609 INFO L933 BasicCegarLoop]: 33 mSDtfsCounter, 1 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-25 20:22:28,610 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 61 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-25 20:22:28,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2021-11-25 20:22:28,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 48. [2021-11-25 20:22:28,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 31 states have (on average 1.7419354838709677) internal successors, (54), 47 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:22:28,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 54 transitions. [2021-11-25 20:22:28,617 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 54 transitions. Word has length 8 [2021-11-25 20:22:28,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:22:28,617 INFO L470 AbstractCegarLoop]: Abstraction has 48 states and 54 transitions. [2021-11-25 20:22:28,618 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:22:28,618 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 54 transitions. [2021-11-25 20:22:28,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-25 20:22:28,623 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:22:28,624 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:22:28,624 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-25 20:22:28,624 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr8REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 19 more)] === [2021-11-25 20:22:28,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:22:28,626 INFO L85 PathProgramCache]: Analyzing trace with hash 1983908387, now seen corresponding path program 1 times [2021-11-25 20:22:28,627 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:22:28,627 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [133968036] [2021-11-25 20:22:28,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:22:28,627 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:22:28,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:22:28,754 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:22:28,754 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:22:28,755 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [133968036] [2021-11-25 20:22:28,755 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [133968036] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 20:22:28,755 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1785013778] [2021-11-25 20:22:28,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:22:28,756 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:22:28,757 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:22:28,764 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:22:28,783 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-25 20:22:28,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:22:28,891 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-25 20:22:28,899 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:22:28,985 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:22:28,986 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 20:22:29,026 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:22:29,027 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1785013778] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 20:22:29,027 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [414289972] [2021-11-25 20:22:29,051 INFO L159 IcfgInterpreter]: Started Sifa with 12 locations of interest [2021-11-25 20:22:29,051 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 20:22:29,057 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 20:22:29,064 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 20:22:29,064 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 20:22:29,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:29,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:29,215 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2021-11-25 20:22:29,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:29,323 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2021-11-25 20:22:29,358 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:22:29,372 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:22:29,427 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:22:29,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:29,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:29,463 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 31 [2021-11-25 20:22:29,481 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:22:29,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:29,572 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:22:29,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:29,603 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:22:29,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:29,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:29,642 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 31 [2021-11-25 20:22:29,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:29,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:29,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:29,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:29,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:29,794 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 35 [2021-11-25 20:22:29,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:29,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:29,921 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-25 20:22:29,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:29,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:29,944 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-25 20:22:29,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:29,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:29,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:29,975 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2021-11-25 20:22:30,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:30,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:30,084 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2021-11-25 20:22:30,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:30,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:30,111 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2021-11-25 20:22:30,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:30,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:30,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:30,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:30,144 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-25 20:22:30,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:30,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:30,424 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:22:30,425 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:22:30,453 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-11-25 20:22:30,453 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 334 treesize of output 333 [2021-11-25 20:22:30,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:30,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:30,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:30,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:30,502 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:22:30,503 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:22:30,513 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-25 20:22:30,514 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 340 treesize of output 321 [2021-11-25 20:22:30,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:30,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:30,555 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:22:30,557 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:22:30,580 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-11-25 20:22:30,583 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 334 treesize of output 333 [2021-11-25 20:22:30,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:30,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:30,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:30,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:30,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:30,785 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 35 [2021-11-25 20:22:30,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:30,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:30,891 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-25 20:22:30,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:30,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:30,911 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-25 20:22:30,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:30,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:30,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:30,940 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2021-11-25 20:22:31,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:31,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:31,005 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2021-11-25 20:22:31,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:31,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:31,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:31,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:31,036 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-25 20:22:31,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:31,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:31,067 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2021-11-25 20:22:31,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:31,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:31,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:31,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:31,192 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:22:31,193 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:22:31,203 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-25 20:22:31,204 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 340 treesize of output 321 [2021-11-25 20:22:31,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:31,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:31,241 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:22:31,243 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:22:31,271 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-11-25 20:22:31,274 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 334 treesize of output 333 [2021-11-25 20:22:31,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:31,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:31,306 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:22:31,307 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:22:31,329 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-11-25 20:22:31,330 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 334 treesize of output 333 [2021-11-25 20:22:31,737 INFO L354 Elim1Store]: treesize reduction 54, result has 27.0 percent of original size [2021-11-25 20:22:31,738 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 261 treesize of output 267 [2021-11-25 20:22:32,219 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-25 20:22:32,219 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 329 treesize of output 320 [2021-11-25 20:22:32,278 INFO L354 Elim1Store]: treesize reduction 64, result has 19.0 percent of original size [2021-11-25 20:22:32,279 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 325 treesize of output 322 [2021-11-25 20:22:32,343 INFO L354 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2021-11-25 20:22:32,343 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 329 treesize of output 320 [2021-11-25 20:22:32,428 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-25 20:22:35,645 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSifa [414289972] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:22:35,645 INFO L186 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2021-11-25 20:22:35,645 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [3, 3, 3] total 10 [2021-11-25 20:22:35,646 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655619076] [2021-11-25 20:22:35,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:22:35,647 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-25 20:22:35,647 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:22:35,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-25 20:22:35,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-11-25 20:22:35,648 INFO L87 Difference]: Start difference. First operand 48 states and 54 transitions. Second operand has 8 states, 8 states have (on average 1.5) internal successors, (12), 7 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:22:36,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:22:36,413 INFO L93 Difference]: Finished difference Result 59 states and 66 transitions. [2021-11-25 20:22:36,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-25 20:22:36,413 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.5) internal successors, (12), 7 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-11-25 20:22:36,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:22:36,414 INFO L225 Difference]: With dead ends: 59 [2021-11-25 20:22:36,414 INFO L226 Difference]: Without dead ends: 59 [2021-11-25 20:22:36,415 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 27 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2021-11-25 20:22:36,416 INFO L933 BasicCegarLoop]: 24 mSDtfsCounter, 9 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-25 20:22:36,417 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 59 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-25 20:22:36,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2021-11-25 20:22:36,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 55. [2021-11-25 20:22:36,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 38 states have (on average 1.631578947368421) internal successors, (62), 54 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:22:36,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 62 transitions. [2021-11-25 20:22:36,425 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 62 transitions. Word has length 12 [2021-11-25 20:22:36,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:22:36,425 INFO L470 AbstractCegarLoop]: Abstraction has 55 states and 62 transitions. [2021-11-25 20:22:36,425 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.5) internal successors, (12), 7 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:22:36,426 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 62 transitions. [2021-11-25 20:22:36,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-25 20:22:36,426 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:22:36,426 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2021-11-25 20:22:36,454 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-11-25 20:22:36,643 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:22:36,644 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 19 more)] === [2021-11-25 20:22:36,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:22:36,644 INFO L85 PathProgramCache]: Analyzing trace with hash 1840726210, now seen corresponding path program 1 times [2021-11-25 20:22:36,645 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:22:36,645 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369993860] [2021-11-25 20:22:36,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:22:36,645 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:22:36,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:22:36,851 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:22:36,851 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:22:36,851 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369993860] [2021-11-25 20:22:36,851 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [369993860] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 20:22:36,851 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2043678498] [2021-11-25 20:22:36,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:22:36,852 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:22:36,852 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:22:36,859 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:22:36,882 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-25 20:22:36,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:22:36,985 INFO L263 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-25 20:22:36,986 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:22:36,994 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 20:22:37,032 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-25 20:22:37,033 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-11-25 20:22:37,069 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:22:37,069 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 20:22:37,299 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:22:37,299 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2043678498] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 20:22:37,299 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [791812159] [2021-11-25 20:22:37,302 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2021-11-25 20:22:37,302 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 20:22:37,303 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 20:22:37,303 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 20:22:37,303 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 20:22:37,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:37,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:37,344 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2021-11-25 20:22:37,406 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:22:37,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:37,419 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2021-11-25 20:22:37,431 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:22:37,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:37,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:37,468 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 31 [2021-11-25 20:22:37,487 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:22:37,496 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:22:37,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:37,523 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:22:37,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:37,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:37,543 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 31 [2021-11-25 20:22:37,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:37,559 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:22:37,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:37,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:37,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:37,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:37,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:37,617 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 30 [2021-11-25 20:22:37,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:37,666 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2021-11-25 20:22:37,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:37,686 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2021-11-25 20:22:37,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:37,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:37,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:37,704 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2021-11-25 20:22:37,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:37,747 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2021-11-25 20:22:37,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:37,764 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2021-11-25 20:22:37,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:37,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:37,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:37,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:37,785 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-25 20:22:37,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:37,889 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:22:37,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:37,892 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:22:37,913 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-11-25 20:22:37,913 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 326 treesize of output 325 [2021-11-25 20:22:37,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:37,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:37,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:37,934 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:22:37,941 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-25 20:22:37,942 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 332 treesize of output 313 [2021-11-25 20:22:37,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:37,960 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:22:37,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:37,963 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:22:37,982 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-11-25 20:22:37,982 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 326 treesize of output 325 [2021-11-25 20:22:38,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:38,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:38,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:38,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:38,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:38,130 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 30 [2021-11-25 20:22:38,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:38,187 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2021-11-25 20:22:38,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:38,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:38,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:38,209 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2021-11-25 20:22:38,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:38,229 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2021-11-25 20:22:38,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:38,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:38,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:38,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:38,274 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-25 20:22:38,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:38,298 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2021-11-25 20:22:38,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:38,315 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2021-11-25 20:22:38,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:38,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:38,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:38,420 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:22:38,428 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-25 20:22:38,429 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 332 treesize of output 313 [2021-11-25 20:22:38,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:38,446 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:22:38,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:38,449 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:22:38,469 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-11-25 20:22:38,469 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 326 treesize of output 325 [2021-11-25 20:22:38,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:38,485 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:22:38,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:38,487 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:22:38,503 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-11-25 20:22:38,504 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 326 treesize of output 325 [2021-11-25 20:22:38,849 INFO L354 Elim1Store]: treesize reduction 54, result has 27.0 percent of original size [2021-11-25 20:22:38,850 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 258 treesize of output 264 [2021-11-25 20:22:39,244 INFO L354 Elim1Store]: treesize reduction 40, result has 27.3 percent of original size [2021-11-25 20:22:39,245 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 332 treesize of output 329 [2021-11-25 20:22:39,270 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:22:39,271 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 336 treesize of output 327 [2021-11-25 20:22:39,292 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:22:39,292 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 336 treesize of output 327 [2021-11-25 20:22:39,364 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-25 20:22:42,508 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSifa [791812159] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:22:42,509 INFO L186 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2021-11-25 20:22:42,509 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [4, 3, 4] total 13 [2021-11-25 20:22:42,509 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438159538] [2021-11-25 20:22:42,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:22:42,510 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-25 20:22:42,510 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:22:42,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-25 20:22:42,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2021-11-25 20:22:42,512 INFO L87 Difference]: Start difference. First operand 55 states and 62 transitions. Second operand has 9 states, 8 states have (on average 1.25) internal successors, (10), 8 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:22:43,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:22:43,137 INFO L93 Difference]: Finished difference Result 57 states and 64 transitions. [2021-11-25 20:22:43,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-25 20:22:43,138 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 1.25) internal successors, (10), 8 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-11-25 20:22:43,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:22:43,139 INFO L225 Difference]: With dead ends: 57 [2021-11-25 20:22:43,139 INFO L226 Difference]: Without dead ends: 57 [2021-11-25 20:22:43,139 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 36 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2021-11-25 20:22:43,141 INFO L933 BasicCegarLoop]: 26 mSDtfsCounter, 5 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-25 20:22:43,141 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 54 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-25 20:22:43,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2021-11-25 20:22:43,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 56. [2021-11-25 20:22:43,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 39 states have (on average 1.6153846153846154) internal successors, (63), 55 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:22:43,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 63 transitions. [2021-11-25 20:22:43,148 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 63 transitions. Word has length 15 [2021-11-25 20:22:43,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:22:43,149 INFO L470 AbstractCegarLoop]: Abstraction has 56 states and 63 transitions. [2021-11-25 20:22:43,149 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 1.25) internal successors, (10), 8 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:22:43,149 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 63 transitions. [2021-11-25 20:22:43,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-25 20:22:43,150 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:22:43,150 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:22:43,189 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-25 20:22:43,379 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:22:43,379 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr8REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 19 more)] === [2021-11-25 20:22:43,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:22:43,380 INFO L85 PathProgramCache]: Analyzing trace with hash 247919927, now seen corresponding path program 1 times [2021-11-25 20:22:43,380 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:22:43,380 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459879373] [2021-11-25 20:22:43,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:22:43,380 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:22:43,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:22:43,461 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-25 20:22:43,461 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:22:43,462 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1459879373] [2021-11-25 20:22:43,462 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1459879373] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:22:43,462 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:22:43,462 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 20:22:43,463 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455056657] [2021-11-25 20:22:43,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:22:43,463 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 20:22:43,463 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:22:43,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 20:22:43,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 20:22:43,465 INFO L87 Difference]: Start difference. First operand 56 states and 63 transitions. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:22:43,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:22:43,544 INFO L93 Difference]: Finished difference Result 131 states and 146 transitions. [2021-11-25 20:22:43,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 20:22:43,544 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2021-11-25 20:22:43,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:22:43,545 INFO L225 Difference]: With dead ends: 131 [2021-11-25 20:22:43,545 INFO L226 Difference]: Without dead ends: 131 [2021-11-25 20:22:43,546 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:22:43,547 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 81 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-25 20:22:43,547 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [81 Valid, 133 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-25 20:22:43,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2021-11-25 20:22:43,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 58. [2021-11-25 20:22:43,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 41 states have (on average 1.6097560975609757) internal successors, (66), 57 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:22:43,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 66 transitions. [2021-11-25 20:22:43,556 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 66 transitions. Word has length 20 [2021-11-25 20:22:43,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:22:43,556 INFO L470 AbstractCegarLoop]: Abstraction has 58 states and 66 transitions. [2021-11-25 20:22:43,557 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:22:43,557 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 66 transitions. [2021-11-25 20:22:43,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-25 20:22:43,558 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:22:43,558 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:22:43,558 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-25 20:22:43,558 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr10REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 19 more)] === [2021-11-25 20:22:43,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:22:43,559 INFO L85 PathProgramCache]: Analyzing trace with hash 247923406, now seen corresponding path program 1 times [2021-11-25 20:22:43,559 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:22:43,559 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479831404] [2021-11-25 20:22:43,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:22:43,560 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:22:43,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:22:43,630 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-25 20:22:43,631 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:22:43,631 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479831404] [2021-11-25 20:22:43,631 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1479831404] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:22:43,631 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:22:43,632 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 20:22:43,632 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211127519] [2021-11-25 20:22:43,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:22:43,632 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-25 20:22:43,633 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:22:43,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-25 20:22:43,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-25 20:22:43,634 INFO L87 Difference]: Start difference. First operand 58 states and 66 transitions. Second operand has 6 states, 5 states have (on average 3.6) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:22:43,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:22:43,809 INFO L93 Difference]: Finished difference Result 98 states and 109 transitions. [2021-11-25 20:22:43,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-25 20:22:43,809 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.6) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2021-11-25 20:22:43,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:22:43,811 INFO L225 Difference]: With dead ends: 98 [2021-11-25 20:22:43,811 INFO L226 Difference]: Without dead ends: 98 [2021-11-25 20:22:43,811 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-11-25 20:22:43,812 INFO L933 BasicCegarLoop]: 25 mSDtfsCounter, 160 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-25 20:22:43,813 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [160 Valid, 57 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-25 20:22:43,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2021-11-25 20:22:43,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 60. [2021-11-25 20:22:43,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 44 states have (on average 1.6136363636363635) internal successors, (71), 59 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:22:43,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 71 transitions. [2021-11-25 20:22:43,829 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 71 transitions. Word has length 20 [2021-11-25 20:22:43,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:22:43,829 INFO L470 AbstractCegarLoop]: Abstraction has 60 states and 71 transitions. [2021-11-25 20:22:43,829 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.6) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:22:43,830 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 71 transitions. [2021-11-25 20:22:43,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-25 20:22:43,830 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:22:43,831 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:22:43,831 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-25 20:22:43,831 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr11REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 19 more)] === [2021-11-25 20:22:43,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:22:43,832 INFO L85 PathProgramCache]: Analyzing trace with hash 247923407, now seen corresponding path program 1 times [2021-11-25 20:22:43,832 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:22:43,838 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132318276] [2021-11-25 20:22:43,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:22:43,839 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:22:43,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:22:43,994 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-25 20:22:43,994 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:22:43,995 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132318276] [2021-11-25 20:22:43,996 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1132318276] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:22:43,997 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:22:43,997 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 20:22:43,998 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244746775] [2021-11-25 20:22:43,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:22:43,998 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-25 20:22:43,999 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:22:43,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-25 20:22:43,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-25 20:22:44,000 INFO L87 Difference]: Start difference. First operand 60 states and 71 transitions. Second operand has 6 states, 5 states have (on average 4.0) internal successors, (20), 6 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:22:44,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:22:44,165 INFO L93 Difference]: Finished difference Result 84 states and 96 transitions. [2021-11-25 20:22:44,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-25 20:22:44,166 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.0) internal successors, (20), 6 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2021-11-25 20:22:44,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:22:44,167 INFO L225 Difference]: With dead ends: 84 [2021-11-25 20:22:44,167 INFO L226 Difference]: Without dead ends: 84 [2021-11-25 20:22:44,168 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-11-25 20:22:44,169 INFO L933 BasicCegarLoop]: 33 mSDtfsCounter, 153 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-25 20:22:44,169 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [153 Valid, 50 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-25 20:22:44,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2021-11-25 20:22:44,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 58. [2021-11-25 20:22:44,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 43 states have (on average 1.558139534883721) internal successors, (67), 57 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:22:44,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 67 transitions. [2021-11-25 20:22:44,175 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 67 transitions. Word has length 20 [2021-11-25 20:22:44,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:22:44,176 INFO L470 AbstractCegarLoop]: Abstraction has 58 states and 67 transitions. [2021-11-25 20:22:44,176 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.0) internal successors, (20), 6 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:22:44,176 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 67 transitions. [2021-11-25 20:22:44,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-25 20:22:44,177 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:22:44,178 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:22:44,178 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-25 20:22:44,178 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr16REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 19 more)] === [2021-11-25 20:22:44,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:22:44,179 INFO L85 PathProgramCache]: Analyzing trace with hash -900739810, now seen corresponding path program 1 times [2021-11-25 20:22:44,179 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:22:44,179 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957183896] [2021-11-25 20:22:44,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:22:44,180 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:22:44,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:22:44,246 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-25 20:22:44,247 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:22:44,247 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957183896] [2021-11-25 20:22:44,247 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [957183896] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:22:44,247 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:22:44,247 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 20:22:44,248 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936717084] [2021-11-25 20:22:44,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:22:44,248 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-25 20:22:44,249 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:22:44,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-25 20:22:44,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-25 20:22:44,250 INFO L87 Difference]: Start difference. First operand 58 states and 67 transitions. Second operand has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:22:44,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:22:44,389 INFO L93 Difference]: Finished difference Result 68 states and 77 transitions. [2021-11-25 20:22:44,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-25 20:22:44,390 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2021-11-25 20:22:44,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:22:44,391 INFO L225 Difference]: With dead ends: 68 [2021-11-25 20:22:44,391 INFO L226 Difference]: Without dead ends: 68 [2021-11-25 20:22:44,391 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-11-25 20:22:44,392 INFO L933 BasicCegarLoop]: 13 mSDtfsCounter, 119 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-25 20:22:44,393 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 35 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-25 20:22:44,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2021-11-25 20:22:44,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 59. [2021-11-25 20:22:44,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 45 states have (on average 1.5555555555555556) internal successors, (70), 58 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:22:44,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 70 transitions. [2021-11-25 20:22:44,398 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 70 transitions. Word has length 21 [2021-11-25 20:22:44,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:22:44,399 INFO L470 AbstractCegarLoop]: Abstraction has 59 states and 70 transitions. [2021-11-25 20:22:44,399 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:22:44,399 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 70 transitions. [2021-11-25 20:22:44,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-25 20:22:44,400 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:22:44,400 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:22:44,401 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-25 20:22:44,401 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr17REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 19 more)] === [2021-11-25 20:22:44,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:22:44,402 INFO L85 PathProgramCache]: Analyzing trace with hash -900739809, now seen corresponding path program 1 times [2021-11-25 20:22:44,402 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:22:44,402 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183175303] [2021-11-25 20:22:44,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:22:44,403 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:22:44,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:22:44,471 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-25 20:22:44,472 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:22:44,472 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1183175303] [2021-11-25 20:22:44,472 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1183175303] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 20:22:44,472 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [829486224] [2021-11-25 20:22:44,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:22:44,473 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:22:44,473 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:22:44,475 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:22:44,487 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-25 20:22:44,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:22:44,585 INFO L263 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-25 20:22:44,587 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:22:44,655 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-25 20:22:44,655 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 20:22:44,656 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [829486224] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:22:44,657 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-25 20:22:44,657 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2021-11-25 20:22:44,657 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879316331] [2021-11-25 20:22:44,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:22:44,658 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 20:22:44,658 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:22:44,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 20:22:44,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-25 20:22:44,659 INFO L87 Difference]: Start difference. First operand 59 states and 70 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:22:44,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:22:44,694 INFO L93 Difference]: Finished difference Result 71 states and 82 transitions. [2021-11-25 20:22:44,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 20:22:44,695 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2021-11-25 20:22:44,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:22:44,698 INFO L225 Difference]: With dead ends: 71 [2021-11-25 20:22:44,699 INFO L226 Difference]: Without dead ends: 71 [2021-11-25 20:22:44,699 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-25 20:22:44,700 INFO L933 BasicCegarLoop]: 30 mSDtfsCounter, 61 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-25 20:22:44,700 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [61 Valid, 60 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-25 20:22:44,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2021-11-25 20:22:44,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 60. [2021-11-25 20:22:44,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 46 states have (on average 1.5217391304347827) internal successors, (70), 59 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:22:44,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 70 transitions. [2021-11-25 20:22:44,714 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 70 transitions. Word has length 21 [2021-11-25 20:22:44,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:22:44,715 INFO L470 AbstractCegarLoop]: Abstraction has 60 states and 70 transitions. [2021-11-25 20:22:44,715 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:22:44,715 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 70 transitions. [2021-11-25 20:22:44,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-25 20:22:44,720 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:22:44,720 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:22:44,752 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-25 20:22:44,947 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-11-25 20:22:44,947 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr12REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 19 more)] === [2021-11-25 20:22:44,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:22:44,948 INFO L85 PathProgramCache]: Analyzing trace with hash 2145930258, now seen corresponding path program 1 times [2021-11-25 20:22:44,948 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:22:44,948 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048769328] [2021-11-25 20:22:44,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:22:44,948 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:22:45,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:22:45,058 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-25 20:22:45,058 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:22:45,059 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048769328] [2021-11-25 20:22:45,059 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1048769328] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:22:45,059 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:22:45,059 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 20:22:45,059 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442140744] [2021-11-25 20:22:45,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:22:45,060 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 20:22:45,060 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:22:45,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 20:22:45,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 20:22:45,061 INFO L87 Difference]: Start difference. First operand 60 states and 70 transitions. Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:22:45,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:22:45,108 INFO L93 Difference]: Finished difference Result 82 states and 95 transitions. [2021-11-25 20:22:45,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 20:22:45,109 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-11-25 20:22:45,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:22:45,110 INFO L225 Difference]: With dead ends: 82 [2021-11-25 20:22:45,110 INFO L226 Difference]: Without dead ends: 82 [2021-11-25 20:22:45,110 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:22:45,111 INFO L933 BasicCegarLoop]: 31 mSDtfsCounter, 27 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-25 20:22:45,111 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [27 Valid, 90 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-25 20:22:45,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2021-11-25 20:22:45,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 61. [2021-11-25 20:22:45,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 47 states have (on average 1.5106382978723405) internal successors, (71), 60 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:22:45,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 71 transitions. [2021-11-25 20:22:45,116 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 71 transitions. Word has length 24 [2021-11-25 20:22:45,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:22:45,116 INFO L470 AbstractCegarLoop]: Abstraction has 61 states and 71 transitions. [2021-11-25 20:22:45,117 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:22:45,117 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 71 transitions. [2021-11-25 20:22:45,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-25 20:22:45,118 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:22:45,118 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:22:45,118 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-25 20:22:45,119 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 19 more)] === [2021-11-25 20:22:45,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:22:45,119 INFO L85 PathProgramCache]: Analyzing trace with hash 2145932435, now seen corresponding path program 1 times [2021-11-25 20:22:45,120 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:22:45,120 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [959649379] [2021-11-25 20:22:45,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:22:45,120 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:22:45,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:22:45,227 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-25 20:22:45,228 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:22:45,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [959649379] [2021-11-25 20:22:45,229 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [959649379] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:22:45,229 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:22:45,229 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 20:22:45,229 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199940103] [2021-11-25 20:22:45,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:22:45,235 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-25 20:22:45,235 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:22:45,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-25 20:22:45,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-25 20:22:45,236 INFO L87 Difference]: Start difference. First operand 61 states and 71 transitions. Second operand has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:22:45,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:22:45,358 INFO L93 Difference]: Finished difference Result 75 states and 84 transitions. [2021-11-25 20:22:45,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-25 20:22:45,371 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-11-25 20:22:45,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:22:45,372 INFO L225 Difference]: With dead ends: 75 [2021-11-25 20:22:45,373 INFO L226 Difference]: Without dead ends: 75 [2021-11-25 20:22:45,373 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-11-25 20:22:45,374 INFO L933 BasicCegarLoop]: 15 mSDtfsCounter, 136 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-25 20:22:45,375 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [136 Valid, 45 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-25 20:22:45,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2021-11-25 20:22:45,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 64. [2021-11-25 20:22:45,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 50 states have (on average 1.54) internal successors, (77), 63 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:22:45,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 77 transitions. [2021-11-25 20:22:45,379 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 77 transitions. Word has length 24 [2021-11-25 20:22:45,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:22:45,379 INFO L470 AbstractCegarLoop]: Abstraction has 64 states and 77 transitions. [2021-11-25 20:22:45,380 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:22:45,380 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 77 transitions. [2021-11-25 20:22:45,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-25 20:22:45,381 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:22:45,381 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:22:45,381 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-25 20:22:45,382 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr15REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 19 more)] === [2021-11-25 20:22:45,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:22:45,382 INFO L85 PathProgramCache]: Analyzing trace with hash 2145932436, now seen corresponding path program 1 times [2021-11-25 20:22:45,382 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:22:45,383 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552164348] [2021-11-25 20:22:45,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:22:45,383 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:22:45,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:22:45,463 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-25 20:22:45,463 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:22:45,463 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552164348] [2021-11-25 20:22:45,464 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [552164348] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 20:22:45,464 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1196826158] [2021-11-25 20:22:45,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:22:45,464 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:22:45,464 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:22:45,465 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:22:45,471 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-25 20:22:45,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:22:45,585 INFO L263 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-25 20:22:45,587 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:22:45,692 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-25 20:22:45,692 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 20:22:45,777 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-25 20:22:45,777 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1196826158] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 20:22:45,777 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [55487592] [2021-11-25 20:22:45,785 INFO L159 IcfgInterpreter]: Started Sifa with 16 locations of interest [2021-11-25 20:22:45,785 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 20:22:45,786 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 20:22:45,786 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 20:22:45,786 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 20:22:45,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:45,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:45,840 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2021-11-25 20:22:45,874 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:22:45,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:45,884 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2021-11-25 20:22:45,895 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:22:45,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:45,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:45,920 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 31 [2021-11-25 20:22:45,939 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:22:45,953 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:22:46,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:46,002 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:22:46,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:46,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:46,020 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 31 [2021-11-25 20:22:46,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:46,039 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:22:46,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:46,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:46,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:46,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:46,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:46,115 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 30 [2021-11-25 20:22:46,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:46,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:46,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:46,186 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2021-11-25 20:22:46,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:46,200 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2021-11-25 20:22:46,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:46,215 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2021-11-25 20:22:46,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:46,257 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2021-11-25 20:22:46,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:46,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:46,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:46,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:46,287 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-25 20:22:46,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:46,312 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2021-11-25 20:22:46,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:46,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:46,353 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 42 [2021-11-25 20:22:46,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:46,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:46,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:46,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:46,374 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-25 20:22:46,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:46,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:46,392 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 42 [2021-11-25 20:22:46,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:46,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:46,465 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:22:46,467 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 47 [2021-11-25 20:22:46,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:46,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:46,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:46,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:46,486 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-25 20:22:46,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:46,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:46,507 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:22:46,508 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 47 [2021-11-25 20:22:46,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:46,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:46,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:46,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:46,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:46,763 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 35 [2021-11-25 20:22:46,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:46,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:46,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:46,822 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2021-11-25 20:22:46,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:46,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:46,837 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-25 20:22:46,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:46,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:46,852 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-25 20:22:46,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:46,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:46,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:46,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:46,896 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-25 20:22:46,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:46,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:46,913 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2021-11-25 20:22:46,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:46,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:46,939 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2021-11-25 20:22:46,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:46,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:46,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:46,984 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2021-11-25 20:22:47,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:47,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:47,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:47,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:47,006 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-25 20:22:47,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:47,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:47,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:47,023 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2021-11-25 20:22:47,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:47,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:47,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:47,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:47,115 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-25 20:22:47,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:47,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:47,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:47,132 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 49 [2021-11-25 20:22:47,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:47,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:47,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:47,149 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 49 [2021-11-25 20:22:47,441 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:22:47,453 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:22:47,465 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:22:47,562 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:22:47,574 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:22:47,586 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:22:47,705 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:22:47,717 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:22:47,729 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:22:47,846 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-25 20:22:47,855 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 20:22:47,896 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:22:47,908 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:22:47,916 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:22:47,965 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:22:47,973 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:22:47,983 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:22:48,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:48,017 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:22:48,027 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:22:48,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:48,042 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:22:48,059 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-25 20:22:50,479 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2214#(and (<= 0 |ULTIMATE.start_main_~s~0#1.offset|) (<= 1 |ULTIMATE.start_dll_create_~data#1|) (= |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_dll_get_data_at_#in~index#1|) (< (select |#length| |ULTIMATE.start_dll_get_data_at_~head#1.base|) (+ |ULTIMATE.start_dll_get_data_at_~head#1.offset| 4)) (= |ULTIMATE.start_main_~i~0#1| 0) (<= 2 |ULTIMATE.start_dll_create_#in~len#1|) (<= |ULTIMATE.start_dll_create_#res#1.offset| 0) (= |ULTIMATE.start_dll_get_data_at_#in~head#1.base| |ULTIMATE.start_main_~s~0#1.base|) (= |ULTIMATE.start_dll_get_data_at_#in~head#1.base| |ULTIMATE.start_dll_get_data_at_~head#1.base|) (= |ULTIMATE.start_dll_get_data_at_#in~head#1.offset| |ULTIMATE.start_dll_get_data_at_~head#1.offset|) (= (+ |ULTIMATE.start_main_~len~0#1| |ULTIMATE.start_main_~i~0#1|) |ULTIMATE.start_main_~expected~0#1|) (<= |ULTIMATE.start_dll_create_~data#1| 1) (= |ULTIMATE.start_dll_get_data_at_~index#1| |ULTIMATE.start_dll_get_data_at_#in~index#1|) (= |ULTIMATE.start_main_~data~0#1| 1) (<= 0 |ULTIMATE.start_dll_create_~len#1|) (<= |ULTIMATE.start_dll_create_#in~len#1| 2) (<= |ULTIMATE.start_dll_create_~len#1| 0) (<= 1 |ULTIMATE.start_dll_create_#in~data#1|) (= |ULTIMATE.start_main_~len~0#1| 2) (= |#NULL.offset| 0) (<= |ULTIMATE.start_dll_create_#in~data#1| 1) (<= |ULTIMATE.start_dll_create_~head~0#1.offset| 0) (<= 0 |ULTIMATE.start_dll_create_~head~0#1.offset|) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~s~0#1.offset| 0) (<= 0 |ULTIMATE.start_dll_create_#res#1.offset|) (= |ULTIMATE.start_dll_get_data_at_#in~head#1.offset| |ULTIMATE.start_main_~s~0#1.offset|) (= |#NULL.base| 0))' at error location [2021-11-25 20:22:50,480 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-25 20:22:50,480 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-25 20:22:50,480 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 8 [2021-11-25 20:22:50,481 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102873476] [2021-11-25 20:22:50,481 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-25 20:22:50,481 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-25 20:22:50,481 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:22:50,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-25 20:22:50,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=352, Unknown=0, NotChecked=0, Total=462 [2021-11-25 20:22:50,483 INFO L87 Difference]: Start difference. First operand 64 states and 77 transitions. Second operand has 9 states, 9 states have (on average 3.888888888888889) internal successors, (35), 8 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:22:50,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:22:50,555 INFO L93 Difference]: Finished difference Result 96 states and 115 transitions. [2021-11-25 20:22:50,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-25 20:22:50,556 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.888888888888889) internal successors, (35), 8 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-11-25 20:22:50,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:22:50,558 INFO L225 Difference]: With dead ends: 96 [2021-11-25 20:22:50,558 INFO L226 Difference]: Without dead ends: 96 [2021-11-25 20:22:50,559 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 53 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 207 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=120, Invalid=386, Unknown=0, NotChecked=0, Total=506 [2021-11-25 20:22:50,560 INFO L933 BasicCegarLoop]: 28 mSDtfsCounter, 81 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-25 20:22:50,560 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [81 Valid, 136 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-25 20:22:50,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2021-11-25 20:22:50,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 69. [2021-11-25 20:22:50,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 55 states have (on average 1.5272727272727273) internal successors, (84), 68 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:22:50,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 84 transitions. [2021-11-25 20:22:50,565 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 84 transitions. Word has length 24 [2021-11-25 20:22:50,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:22:50,566 INFO L470 AbstractCegarLoop]: Abstraction has 69 states and 84 transitions. [2021-11-25 20:22:50,566 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.888888888888889) internal successors, (35), 8 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:22:50,566 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 84 transitions. [2021-11-25 20:22:50,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-25 20:22:50,567 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:22:50,567 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:22:50,602 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-25 20:22:50,795 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-11-25 20:22:50,795 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr8REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 19 more)] === [2021-11-25 20:22:50,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:22:50,796 INFO L85 PathProgramCache]: Analyzing trace with hash 1987792857, now seen corresponding path program 1 times [2021-11-25 20:22:50,796 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:22:50,796 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972071835] [2021-11-25 20:22:50,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:22:50,796 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:22:50,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:22:50,862 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-25 20:22:50,863 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:22:50,863 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972071835] [2021-11-25 20:22:50,863 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1972071835] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 20:22:50,863 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1625243219] [2021-11-25 20:22:50,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:22:50,864 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:22:50,864 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:22:50,865 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:22:50,879 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-25 20:22:50,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:22:50,994 INFO L263 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-25 20:22:50,995 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:22:51,040 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-25 20:22:51,040 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 20:22:51,076 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-25 20:22:51,077 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1625243219] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 20:22:51,077 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1640161867] [2021-11-25 20:22:51,080 INFO L159 IcfgInterpreter]: Started Sifa with 14 locations of interest [2021-11-25 20:22:51,080 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 20:22:51,080 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 20:22:51,081 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 20:22:51,081 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 20:22:51,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:51,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:51,112 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2021-11-25 20:22:51,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:51,154 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2021-11-25 20:22:51,166 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:22:51,176 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:22:51,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:51,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:51,207 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 31 [2021-11-25 20:22:51,218 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:22:51,227 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:22:51,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:51,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:51,256 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 31 [2021-11-25 20:22:51,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:51,269 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:22:51,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:51,294 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:22:51,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:51,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:51,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:51,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:51,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:51,392 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 35 [2021-11-25 20:22:51,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:51,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:51,507 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-25 20:22:51,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:51,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:51,527 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-25 20:22:51,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:51,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:51,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:51,544 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2021-11-25 20:22:51,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:51,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:51,584 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2021-11-25 20:22:51,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:51,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:51,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:51,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:51,601 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-25 20:22:51,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:51,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:51,619 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2021-11-25 20:22:51,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:51,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:51,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:51,656 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2021-11-25 20:22:51,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:51,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:51,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:51,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:51,672 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-25 20:22:51,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:51,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:51,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:51,690 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2021-11-25 20:22:51,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:51,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:51,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:51,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:51,755 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-25 20:22:51,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:51,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:51,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:51,778 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 49 [2021-11-25 20:22:51,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:51,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:51,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:51,798 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 49 [2021-11-25 20:22:52,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:52,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:52,101 INFO L354 Elim1Store]: treesize reduction 34, result has 41.4 percent of original size [2021-11-25 20:22:52,102 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 29 treesize of output 43 [2021-11-25 20:22:52,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:52,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:52,168 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-25 20:22:52,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:52,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:52,186 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-25 20:22:52,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:52,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:52,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:52,204 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2021-11-25 20:22:52,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:52,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:52,243 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2021-11-25 20:22:52,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:52,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:52,261 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2021-11-25 20:22:52,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:52,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:52,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:52,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:52,279 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-25 20:22:52,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:52,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:52,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:52,332 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2021-11-25 20:22:52,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:52,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:52,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:52,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:52,356 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-25 20:22:52,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:52,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:52,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:52,380 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2021-11-25 20:22:52,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:52,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:52,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:52,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:52,453 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-25 20:22:52,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:52,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:52,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:52,476 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 49 [2021-11-25 20:22:52,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:52,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:52,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:52,496 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 49 [2021-11-25 20:22:52,555 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 20:22:52,562 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-25 20:22:52,588 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:22:52,595 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:22:52,604 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:22:52,623 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:22:52,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:52,631 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:22:52,642 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:22:52,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:52,662 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:22:52,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:52,670 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:22:52,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:52,681 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:22:52,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:52,717 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:22:52,727 INFO L354 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2021-11-25 20:22:52,728 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 34 [2021-11-25 20:22:52,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:52,742 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:22:52,755 INFO L354 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2021-11-25 20:22:52,756 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 38 [2021-11-25 20:22:52,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:52,769 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:22:52,854 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 20:22:52,860 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-25 20:22:52,880 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:22:52,887 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:22:52,893 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:22:52,913 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:22:52,920 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:22:52,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:52,929 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:22:52,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:52,949 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:22:52,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:52,958 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:22:52,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:52,970 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:22:53,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:53,003 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:22:53,015 INFO L354 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2021-11-25 20:22:53,016 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 38 [2021-11-25 20:22:53,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:53,029 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:22:53,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:53,046 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:22:53,057 INFO L354 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2021-11-25 20:22:53,058 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 34 [2021-11-25 20:22:53,202 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:22:53,219 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:22:53,234 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:22:53,398 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:22:53,409 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:22:53,418 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:22:53,615 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:22:53,625 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:22:53,637 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:22:53,690 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 20:22:53,698 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-25 20:22:53,719 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:22:53,727 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:22:53,738 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:22:53,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:53,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:53,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:53,814 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:22:53,819 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 20:22:53,819 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 198 treesize of output 184 [2021-11-25 20:22:53,843 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:22:53,852 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:22:53,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:53,887 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:22:53,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:53,926 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:22:53,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:53,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:53,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:53,948 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:22:53,953 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 20:22:53,954 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 198 treesize of output 184 [2021-11-25 20:22:54,018 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-25 20:22:55,777 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2545#(and (<= 0 |ULTIMATE.start_dll_update_at_#in~head#1.offset|) (<= 0 |ULTIMATE.start_main_~s~0#1.offset|) (<= 1 |ULTIMATE.start_dll_create_~data#1|) (<= 2 |ULTIMATE.start_dll_create_#in~len#1|) (<= |ULTIMATE.start_dll_create_#res#1.offset| 0) (<= 0 |ULTIMATE.start_dll_update_at_#in~index#1|) (< 0 |ULTIMATE.start_dll_update_at_~index#1|) (<= |ULTIMATE.start_dll_create_~data#1| 1) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_dll_update_at_#in~head#1.offset| 0) (<= 0 (+ |ULTIMATE.start_dll_create_~len#1| 1)) (= |ULTIMATE.start_main_~data~0#1| 1) (<= |ULTIMATE.start_dll_create_#in~len#1| 2) (<= |ULTIMATE.start_dll_create_~len#1| 0) (<= 1 |ULTIMATE.start_dll_create_#in~data#1|) (= |ULTIMATE.start_main_~len~0#1| 2) (= |#NULL.offset| 0) (<= |ULTIMATE.start_dll_create_#in~data#1| 1) (<= 2 |ULTIMATE.start_dll_update_at_~data#1|) (<= |ULTIMATE.start_dll_create_~head~0#1.offset| 0) (<= 0 |ULTIMATE.start_dll_create_~head~0#1.offset|) (not (= (select |#valid| |ULTIMATE.start_dll_update_at_~head#1.base|) 1)) (<= 2 |ULTIMATE.start_main_~new_data~0#1|) (<= 2 |ULTIMATE.start_dll_update_at_#in~data#1|) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~s~0#1.offset| 0) (<= 0 |ULTIMATE.start_dll_create_#res#1.offset|) (= |#NULL.base| 0))' at error location [2021-11-25 20:22:55,777 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-25 20:22:55,778 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-25 20:22:55,778 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 7 [2021-11-25 20:22:55,778 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112305626] [2021-11-25 20:22:55,778 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-25 20:22:55,779 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-25 20:22:55,779 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:22:55,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-25 20:22:55,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=267, Unknown=0, NotChecked=0, Total=342 [2021-11-25 20:22:55,780 INFO L87 Difference]: Start difference. First operand 69 states and 84 transitions. Second operand has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:22:55,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:22:55,857 INFO L93 Difference]: Finished difference Result 92 states and 110 transitions. [2021-11-25 20:22:55,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-25 20:22:55,871 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2021-11-25 20:22:55,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:22:55,872 INFO L225 Difference]: With dead ends: 92 [2021-11-25 20:22:55,873 INFO L226 Difference]: Without dead ends: 92 [2021-11-25 20:22:55,875 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=94, Invalid=368, Unknown=0, NotChecked=0, Total=462 [2021-11-25 20:22:55,878 INFO L933 BasicCegarLoop]: 29 mSDtfsCounter, 126 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-25 20:22:55,879 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [126 Valid, 99 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-25 20:22:55,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2021-11-25 20:22:55,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 72. [2021-11-25 20:22:55,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 58 states have (on average 1.5172413793103448) internal successors, (88), 71 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:22:55,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 88 transitions. [2021-11-25 20:22:55,885 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 88 transitions. Word has length 25 [2021-11-25 20:22:55,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:22:55,885 INFO L470 AbstractCegarLoop]: Abstraction has 72 states and 88 transitions. [2021-11-25 20:22:55,886 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:22:55,886 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 88 transitions. [2021-11-25 20:22:55,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-25 20:22:55,890 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:22:55,890 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:22:55,916 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-25 20:22:56,116 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:22:56,116 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr10REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 19 more)] === [2021-11-25 20:22:56,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:22:56,117 INFO L85 PathProgramCache]: Analyzing trace with hash 1987796336, now seen corresponding path program 1 times [2021-11-25 20:22:56,117 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:22:56,117 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445259329] [2021-11-25 20:22:56,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:22:56,117 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:22:56,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:22:56,422 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-25 20:22:56,422 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:22:56,422 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [445259329] [2021-11-25 20:22:56,423 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [445259329] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 20:22:56,423 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1901195604] [2021-11-25 20:22:56,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:22:56,423 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:22:56,423 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:22:56,424 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:22:56,443 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-25 20:22:56,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:22:56,570 INFO L263 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 49 conjunts are in the unsatisfiable core [2021-11-25 20:22:56,574 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:22:56,580 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 20:22:56,619 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-25 20:22:56,620 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-11-25 20:22:56,648 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:22:56,688 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-11-25 20:22:56,689 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:22:56,717 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-25 20:22:56,717 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 35 [2021-11-25 20:22:56,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:22:56,869 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 26 [2021-11-25 20:22:56,917 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 13 [2021-11-25 20:22:56,921 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 11 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-25 20:22:56,921 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 20:23:03,119 INFO L354 Elim1Store]: treesize reduction 5, result has 70.6 percent of original size [2021-11-25 20:23:03,120 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 20 [2021-11-25 20:23:03,127 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_845 (Array Int Int))) (= |c_ULTIMATE.start_dll_create_~head~0#1.base| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_845) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 4)))) is different from false [2021-11-25 20:23:03,142 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_845 (Array Int Int)) (v_ArrVal_843 Int)) (= |c_ULTIMATE.start_dll_create_~head~0#1.base| (select (select (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 8) v_ArrVal_843)) |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_845) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 4)))) is different from false [2021-11-25 20:23:03,166 INFO L354 Elim1Store]: treesize reduction 27, result has 43.8 percent of original size [2021-11-25 20:23:03,167 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 33 [2021-11-25 20:23:03,172 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 24 [2021-11-25 20:23:03,192 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:23:03,275 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 2 not checked. [2021-11-25 20:23:03,276 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1901195604] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 20:23:03,276 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [899492606] [2021-11-25 20:23:03,279 INFO L159 IcfgInterpreter]: Started Sifa with 14 locations of interest [2021-11-25 20:23:03,279 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 20:23:03,279 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 20:23:03,279 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 20:23:03,280 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 20:23:03,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:03,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:03,321 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2021-11-25 20:23:03,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:03,351 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2021-11-25 20:23:03,363 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:23:03,374 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:23:03,400 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:23:03,411 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:23:03,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:03,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:03,428 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 31 [2021-11-25 20:23:03,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:03,456 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:23:03,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:03,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:03,470 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 31 [2021-11-25 20:23:03,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:03,489 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:23:03,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:03,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:03,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:03,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:03,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:03,576 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 30 [2021-11-25 20:23:03,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:03,627 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2021-11-25 20:23:03,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:03,641 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2021-11-25 20:23:03,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:03,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:03,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:03,664 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2021-11-25 20:23:03,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:03,702 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2021-11-25 20:23:03,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:03,719 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2021-11-25 20:23:03,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:03,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:03,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:03,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:03,741 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-25 20:23:03,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:03,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:03,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:03,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:03,797 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-25 20:23:03,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:03,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:03,819 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 42 [2021-11-25 20:23:03,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:03,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:03,838 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 42 [2021-11-25 20:23:03,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:03,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:03,898 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:23:03,899 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 47 [2021-11-25 20:23:03,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:03,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:03,931 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:23:03,932 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 47 [2021-11-25 20:23:03,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:03,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:03,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:03,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:03,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:03,964 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-25 20:23:04,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:04,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:04,267 INFO L354 Elim1Store]: treesize reduction 34, result has 41.4 percent of original size [2021-11-25 20:23:04,268 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 29 treesize of output 43 [2021-11-25 20:23:04,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:04,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:04,343 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-25 20:23:04,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:04,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:04,357 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-25 20:23:04,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:04,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:04,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:04,374 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2021-11-25 20:23:04,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:04,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:04,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:04,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:04,457 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-25 20:23:04,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:04,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:04,472 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2021-11-25 20:23:04,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:04,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:04,493 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2021-11-25 20:23:04,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:04,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:04,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:04,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:04,536 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-25 20:23:04,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:04,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:04,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:04,551 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2021-11-25 20:23:04,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:04,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:04,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:04,573 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2021-11-25 20:23:04,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:04,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:04,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:04,654 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 49 [2021-11-25 20:23:04,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:04,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:04,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:04,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:04,681 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-25 20:23:04,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:04,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:04,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:04,704 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 49 [2021-11-25 20:23:04,754 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-25 20:23:04,760 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 20:23:04,783 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:23:04,791 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:23:04,802 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:23:04,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:04,823 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:23:04,831 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:23:04,839 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:23:04,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:04,856 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:23:04,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:04,866 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:23:04,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:04,875 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:23:04,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:04,903 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:23:04,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:04,917 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:23:04,927 INFO L354 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2021-11-25 20:23:04,927 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 34 [2021-11-25 20:23:04,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:04,965 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:23:04,981 INFO L354 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2021-11-25 20:23:04,981 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 38 [2021-11-25 20:23:05,059 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 20:23:05,066 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-25 20:23:05,105 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:23:05,112 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:23:05,122 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:23:05,138 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:23:05,146 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:23:05,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:05,158 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:23:05,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:05,177 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:23:05,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:05,186 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:23:05,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:05,198 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:23:05,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:05,254 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:23:05,264 INFO L354 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2021-11-25 20:23:05,265 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 34 [2021-11-25 20:23:05,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:05,280 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:23:05,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:05,291 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:23:05,304 INFO L354 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2021-11-25 20:23:05,304 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 38 [2021-11-25 20:23:05,444 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:23:05,465 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:23:05,478 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:23:05,612 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:23:05,622 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:23:05,640 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:23:05,842 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:23:05,852 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:23:05,859 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:23:05,925 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-25 20:23:05,936 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 20:23:05,959 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:23:05,965 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:23:05,974 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:23:06,060 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:23:06,069 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:23:06,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:06,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:06,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:06,087 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:23:06,095 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 20:23:06,095 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 198 treesize of output 184 [2021-11-25 20:23:06,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:06,189 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:23:06,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:06,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:06,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:06,208 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:23:06,215 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 20:23:06,216 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 198 treesize of output 184 [2021-11-25 20:23:06,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:06,253 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:23:06,293 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-25 20:23:08,783 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2900#(and (<= 0 |ULTIMATE.start_dll_update_at_#in~head#1.offset|) (<= 0 |ULTIMATE.start_main_~s~0#1.offset|) (<= 1 |ULTIMATE.start_dll_create_~data#1|) (<= 2 |ULTIMATE.start_dll_create_#in~len#1|) (<= |ULTIMATE.start_dll_create_#res#1.offset| 0) (<= 0 |ULTIMATE.start_dll_update_at_#in~index#1|) (<= |ULTIMATE.start_dll_create_~data#1| 1) (<= |ULTIMATE.start_dll_update_at_~index#1| 0) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_dll_update_at_#in~head#1.offset| 0) (<= 0 (+ |ULTIMATE.start_dll_create_~len#1| 1)) (= |ULTIMATE.start_main_~data~0#1| 1) (<= |ULTIMATE.start_dll_create_#in~len#1| 2) (<= |ULTIMATE.start_dll_create_~len#1| 0) (<= 1 |ULTIMATE.start_dll_create_#in~data#1|) (= |ULTIMATE.start_main_~len~0#1| 2) (= |#NULL.offset| 0) (<= |ULTIMATE.start_dll_create_#in~data#1| 1) (<= 2 |ULTIMATE.start_dll_update_at_~data#1|) (<= |ULTIMATE.start_dll_create_~head~0#1.offset| 0) (<= 0 |ULTIMATE.start_dll_create_~head~0#1.offset|) (not (= (select |#valid| |ULTIMATE.start_dll_update_at_~head#1.base|) 1)) (<= 2 |ULTIMATE.start_main_~new_data~0#1|) (<= 2 |ULTIMATE.start_dll_update_at_#in~data#1|) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~s~0#1.offset| 0) (<= 0 |ULTIMATE.start_dll_create_#res#1.offset|) (= |#NULL.base| 0))' at error location [2021-11-25 20:23:08,783 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-25 20:23:08,783 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-25 20:23:08,783 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 12] total 28 [2021-11-25 20:23:08,783 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357745637] [2021-11-25 20:23:08,783 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-25 20:23:08,784 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2021-11-25 20:23:08,784 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:23:08,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-11-25 20:23:08,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=160, Invalid=1327, Unknown=3, NotChecked=150, Total=1640 [2021-11-25 20:23:08,786 INFO L87 Difference]: Start difference. First operand 72 states and 88 transitions. Second operand has 29 states, 28 states have (on average 2.3214285714285716) internal successors, (65), 29 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:23:10,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:23:10,289 INFO L93 Difference]: Finished difference Result 182 states and 220 transitions. [2021-11-25 20:23:10,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-11-25 20:23:10,290 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 2.3214285714285716) internal successors, (65), 29 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2021-11-25 20:23:10,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:23:10,292 INFO L225 Difference]: With dead ends: 182 [2021-11-25 20:23:10,292 INFO L226 Difference]: Without dead ends: 182 [2021-11-25 20:23:10,293 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 47 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 734 ImplicationChecksByTransitivity, 9.5s TimeCoverageRelationStatistics Valid=345, Invalid=2522, Unknown=3, NotChecked=210, Total=3080 [2021-11-25 20:23:10,294 INFO L933 BasicCegarLoop]: 34 mSDtfsCounter, 558 mSDsluCounter, 569 mSDsCounter, 0 mSdLazyCounter, 945 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 558 SdHoareTripleChecker+Valid, 450 SdHoareTripleChecker+Invalid, 1286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 945 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 282 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-11-25 20:23:10,294 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [558 Valid, 450 Invalid, 1286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 945 Invalid, 0 Unknown, 282 Unchecked, 0.8s Time] [2021-11-25 20:23:10,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2021-11-25 20:23:10,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 94. [2021-11-25 20:23:10,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 80 states have (on average 1.475) internal successors, (118), 93 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:23:10,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 118 transitions. [2021-11-25 20:23:10,302 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 118 transitions. Word has length 25 [2021-11-25 20:23:10,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:23:10,304 INFO L470 AbstractCegarLoop]: Abstraction has 94 states and 118 transitions. [2021-11-25 20:23:10,305 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 2.3214285714285716) internal successors, (65), 29 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:23:10,305 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 118 transitions. [2021-11-25 20:23:10,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-25 20:23:10,306 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:23:10,306 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:23:10,356 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-25 20:23:10,519 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-11-25 20:23:10,519 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr11REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 19 more)] === [2021-11-25 20:23:10,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:23:10,520 INFO L85 PathProgramCache]: Analyzing trace with hash 1987796337, now seen corresponding path program 1 times [2021-11-25 20:23:10,520 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:23:10,520 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [870427507] [2021-11-25 20:23:10,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:23:10,520 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:23:10,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:23:11,005 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 11 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-25 20:23:11,005 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:23:11,005 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [870427507] [2021-11-25 20:23:11,005 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [870427507] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 20:23:11,005 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [303961093] [2021-11-25 20:23:11,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:23:11,006 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:23:11,006 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:23:11,007 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:23:11,031 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-25 20:23:11,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:23:11,167 INFO L263 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 61 conjunts are in the unsatisfiable core [2021-11-25 20:23:11,180 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:23:11,189 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 20:23:11,286 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-25 20:23:11,287 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-11-25 20:23:11,336 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:23:11,342 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:23:11,403 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-11-25 20:23:11,404 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:23:11,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:11,413 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:23:11,448 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-25 20:23:11,449 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 54 treesize of output 53 [2021-11-25 20:23:11,453 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 41 [2021-11-25 20:23:11,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:11,649 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 34 [2021-11-25 20:23:11,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:11,657 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 33 [2021-11-25 20:23:11,766 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 21 [2021-11-25 20:23:11,769 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 14 [2021-11-25 20:23:11,813 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 11 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-25 20:23:11,813 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 20:23:14,155 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_dll_update_at_~head#1.offset_38| Int)) (or (< |c_ULTIMATE.start_main_~s~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_38|) (and (forall ((v_ArrVal_965 Int)) (<= 0 (select (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~s~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_38| v_ArrVal_965) (+ |c_ULTIMATE.start_main_~s~0#1.offset| 4)))) (forall ((v_ArrVal_965 Int) (v_ArrVal_964 Int)) (let ((.cse0 (+ |c_ULTIMATE.start_main_~s~0#1.offset| 4))) (<= (+ (select (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~s~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_38| v_ArrVal_965) .cse0) 4) (select |c_#length| (select (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~s~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_38| v_ArrVal_964) .cse0)))))))) is different from false [2021-11-25 20:23:16,196 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_dll_update_at_~head#1.offset_38| Int)) (or (and (forall ((v_ArrVal_965 Int)) (<= 0 (select (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_38| v_ArrVal_965) (+ |c_ULTIMATE.start_dll_create_~head~0#1.offset| 4)))) (forall ((v_ArrVal_965 Int) (v_ArrVal_964 Int)) (let ((.cse0 (+ |c_ULTIMATE.start_dll_create_~head~0#1.offset| 4))) (<= (+ (select (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_38| v_ArrVal_965) .cse0) 4) (select |c_#length| (select (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_38| v_ArrVal_964) .cse0)))))) (< |c_ULTIMATE.start_dll_create_~head~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_38|))) is different from false [2021-11-25 20:23:18,229 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_dll_update_at_~head#1.offset_38| Int)) (or (and (forall ((v_ArrVal_965 Int)) (<= 0 (select (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_38| v_ArrVal_965) (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 4)))) (forall ((v_ArrVal_965 Int) (v_ArrVal_964 Int)) (let ((.cse0 (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 4))) (<= (+ (select (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_38| v_ArrVal_965) .cse0) 4) (select |c_#length| (select (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_38| v_ArrVal_964) .cse0)))))) (< |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_38|))) is different from false [2021-11-25 20:23:18,253 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:23:18,254 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 55 treesize of output 59 [2021-11-25 20:23:18,395 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_dll_update_at_~head#1.offset_38| Int)) (or (and (forall ((v_ArrVal_965 Int) (v_ArrVal_961 (Array Int Int))) (<= 0 (select (store (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_961) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_38| v_ArrVal_965) (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 4)))) (forall ((v_ArrVal_962 (Array Int Int)) (v_ArrVal_964 Int)) (= |c_ULTIMATE.start_dll_create_~head~0#1.base| (select (store (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_962) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_38| v_ArrVal_964) (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 4)))) (forall ((v_prenex_2 Int) (v_ArrVal_961 (Array Int Int))) (<= (select (store (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_961) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_38| v_prenex_2) (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 4)) (+ |c_ULTIMATE.start_dll_create_~head~0#1.offset| 8)))) (< |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_38|))) is different from false [2021-11-25 20:23:18,525 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_dll_update_at_~head#1.offset_38| Int)) (or (and (forall ((v_ArrVal_959 Int) (v_ArrVal_962 (Array Int Int)) (v_ArrVal_964 Int)) (= |c_ULTIMATE.start_dll_create_~head~0#1.base| (select (store (select (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 8) v_ArrVal_959)) |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_962) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_38| v_ArrVal_964) (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 4)))) (forall ((v_ArrVal_960 Int) (v_ArrVal_965 Int) (v_ArrVal_961 (Array Int Int))) (<= 0 (select (store (select (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 8) v_ArrVal_960)) |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_961) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_38| v_ArrVal_965) (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 4)))) (forall ((v_ArrVal_960 Int) (v_prenex_2 Int) (v_ArrVal_961 (Array Int Int))) (<= (select (store (select (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 8) v_ArrVal_960)) |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_961) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_38| v_prenex_2) (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 4)) (+ |c_ULTIMATE.start_dll_create_~head~0#1.offset| 8)))) (< |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_38|))) is different from false [2021-11-25 20:23:18,546 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:23:18,557 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:23:18,558 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 93 treesize of output 104 [2021-11-25 20:23:18,563 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 123 treesize of output 117 [2021-11-25 20:23:18,567 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:23:18,569 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:23:18,570 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 114 treesize of output 102 [2021-11-25 20:23:18,576 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 119 treesize of output 113 [2021-11-25 20:23:18,580 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:23:18,582 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:23:18,583 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 110 treesize of output 98 [2021-11-25 20:23:18,588 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:23:18,596 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:23:18,596 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 98 treesize of output 103 [2021-11-25 20:23:18,602 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 120 treesize of output 114 [2021-11-25 20:23:18,606 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:23:18,609 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:23:18,609 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 111 treesize of output 99 [2021-11-25 20:23:18,623 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:23:18,625 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 49 [2021-11-25 20:23:18,628 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:23:18,630 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 42 [2021-11-25 20:23:18,633 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:23:18,635 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 35 [2021-11-25 20:23:18,934 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 5 not checked. [2021-11-25 20:23:18,934 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [303961093] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 20:23:18,935 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [711566658] [2021-11-25 20:23:18,937 INFO L159 IcfgInterpreter]: Started Sifa with 14 locations of interest [2021-11-25 20:23:18,938 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 20:23:18,938 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 20:23:18,938 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 20:23:18,939 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 20:23:18,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:18,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:18,969 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2021-11-25 20:23:19,005 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:23:19,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:19,017 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2021-11-25 20:23:19,028 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:23:19,052 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:23:19,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:19,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:19,068 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 31 [2021-11-25 20:23:19,080 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:23:19,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:19,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:19,108 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 31 [2021-11-25 20:23:19,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:19,120 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:23:19,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:19,133 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:23:19,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:19,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:19,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:19,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:19,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:19,231 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 35 [2021-11-25 20:23:19,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:19,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:19,287 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-25 20:23:19,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:19,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:19,302 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-25 20:23:19,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:19,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:19,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:19,319 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2021-11-25 20:23:19,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:19,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:19,351 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2021-11-25 20:23:19,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:19,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:19,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:19,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:19,372 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-25 20:23:19,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:19,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:19,390 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2021-11-25 20:23:19,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:19,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:19,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:19,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:19,426 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-25 20:23:19,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:19,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:19,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:19,440 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2021-11-25 20:23:19,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:19,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:19,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:19,459 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2021-11-25 20:23:19,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:19,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:19,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:19,540 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 49 [2021-11-25 20:23:19,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:19,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:19,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:19,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:19,564 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-25 20:23:19,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:19,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:19,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:19,586 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 49 [2021-11-25 20:23:19,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:19,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:19,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:19,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:19,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:19,869 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 35 [2021-11-25 20:23:19,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:19,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:19,919 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-25 20:23:19,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:19,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:19,933 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-25 20:23:19,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:19,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:19,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:19,950 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2021-11-25 20:23:19,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:19,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:19,978 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2021-11-25 20:23:20,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:20,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:20,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:20,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:20,023 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-25 20:23:20,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:20,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:20,048 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2021-11-25 20:23:20,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:20,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:20,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:20,088 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2021-11-25 20:23:20,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:20,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:20,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:20,115 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2021-11-25 20:23:20,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:20,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:20,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:20,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:20,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:20,138 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-25 20:23:20,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:20,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:20,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:20,202 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 49 [2021-11-25 20:23:20,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:20,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:20,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:20,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:20,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:20,225 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-25 20:23:20,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:20,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:20,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:20,249 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 49 [2021-11-25 20:23:20,545 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:23:20,556 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:23:20,576 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:23:20,702 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:23:20,711 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:23:20,722 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:23:20,908 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:23:20,919 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:23:20,943 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:23:21,001 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-25 20:23:21,013 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 20:23:21,041 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:23:21,054 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:23:21,062 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:23:21,114 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:23:21,122 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:23:21,128 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:23:21,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:21,164 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:23:21,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:21,182 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:23:21,200 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:23:21,220 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-25 20:23:23,986 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '3397#(and (<= 0 |ULTIMATE.start_dll_update_at_#in~head#1.offset|) (<= 0 |ULTIMATE.start_main_~s~0#1.offset|) (<= 1 |ULTIMATE.start_dll_create_~data#1|) (<= 2 |ULTIMATE.start_dll_create_#in~len#1|) (or (< (select |#length| |ULTIMATE.start_dll_update_at_~head#1.base|) (+ |ULTIMATE.start_dll_update_at_~head#1.offset| 4)) (< |ULTIMATE.start_dll_update_at_~head#1.offset| 0)) (<= |ULTIMATE.start_dll_create_#res#1.offset| 0) (<= 0 |ULTIMATE.start_dll_update_at_#in~index#1|) (<= |ULTIMATE.start_dll_create_~data#1| 1) (<= |ULTIMATE.start_dll_update_at_~index#1| 0) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_dll_update_at_#in~head#1.offset| 0) (= |ULTIMATE.start_main_~data~0#1| 1) (<= 0 |ULTIMATE.start_dll_create_~len#1|) (<= |ULTIMATE.start_dll_create_#in~len#1| 2) (<= |ULTIMATE.start_dll_create_~len#1| 0) (<= 1 |ULTIMATE.start_dll_create_#in~data#1|) (= |ULTIMATE.start_main_~len~0#1| 2) (= |#NULL.offset| 0) (<= |ULTIMATE.start_dll_create_#in~data#1| 1) (<= 2 |ULTIMATE.start_dll_update_at_~data#1|) (<= |ULTIMATE.start_dll_create_~head~0#1.offset| 0) (<= 0 |ULTIMATE.start_dll_create_~head~0#1.offset|) (<= 2 |ULTIMATE.start_main_~new_data~0#1|) (<= 2 |ULTIMATE.start_dll_update_at_#in~data#1|) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~s~0#1.offset| 0) (<= 0 |ULTIMATE.start_dll_create_#res#1.offset|) (= |#NULL.base| 0))' at error location [2021-11-25 20:23:23,987 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-25 20:23:23,987 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-25 20:23:23,987 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 13] total 33 [2021-11-25 20:23:23,987 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881767244] [2021-11-25 20:23:23,987 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-25 20:23:23,988 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2021-11-25 20:23:23,988 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:23:23,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-11-25 20:23:23,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=1500, Unknown=5, NotChecked=410, Total=2070 [2021-11-25 20:23:23,990 INFO L87 Difference]: Start difference. First operand 94 states and 118 transitions. Second operand has 34 states, 33 states have (on average 2.1515151515151514) internal successors, (71), 34 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:23:26,285 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse1 (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 4))) (let ((.cse0 (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) .cse1))) (and (= |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 0) (= .cse0 0) (= |c_ULTIMATE.start_dll_create_~head~0#1.base| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) .cse1)) (not (= |c_ULTIMATE.start_dll_create_~head~0#1.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|)) (= (select |c_#valid| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) 1) (= (select |c_#length| |c_ULTIMATE.start_dll_create_~head~0#1.base|) 12) (= (select |c_#length| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) 12) (= |c_ULTIMATE.start_dll_create_~head~0#1.offset| 0) (forall ((|v_ULTIMATE.start_dll_update_at_~head#1.offset_38| Int)) (or (and (forall ((v_ArrVal_965 Int) (v_ArrVal_961 (Array Int Int))) (<= 0 (select (store (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_961) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_38| v_ArrVal_965) (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 4)))) (forall ((v_ArrVal_962 (Array Int Int)) (v_ArrVal_964 Int)) (= |c_ULTIMATE.start_dll_create_~head~0#1.base| (select (store (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_962) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_38| v_ArrVal_964) (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 4)))) (forall ((v_prenex_2 Int) (v_ArrVal_961 (Array Int Int))) (<= (select (store (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_961) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_38| v_prenex_2) (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 4)) (+ |c_ULTIMATE.start_dll_create_~head~0#1.offset| 8)))) (< |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_38|))) (<= 0 |c_ULTIMATE.start_dll_create_~head~0#1.offset|) (= .cse0 |c_ULTIMATE.start_dll_create_~head~0#1.offset|)))) is different from false [2021-11-25 20:23:27,166 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse1 (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 4))) (let ((.cse0 (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) .cse1))) (and (= |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 0) (= .cse0 0) (= |c_ULTIMATE.start_dll_create_~head~0#1.base| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) .cse1)) (not (= |c_ULTIMATE.start_dll_create_~head~0#1.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|)) (= (select |c_#length| |c_ULTIMATE.start_dll_create_~head~0#1.base|) 12) (forall ((|v_ULTIMATE.start_dll_update_at_~head#1.offset_38| Int)) (or (and (forall ((v_ArrVal_965 Int) (v_ArrVal_961 (Array Int Int))) (<= 0 (select (store (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_961) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_38| v_ArrVal_965) (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 4)))) (forall ((v_ArrVal_962 (Array Int Int)) (v_ArrVal_964 Int)) (= |c_ULTIMATE.start_dll_create_~head~0#1.base| (select (store (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_962) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_38| v_ArrVal_964) (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 4)))) (forall ((v_prenex_2 Int) (v_ArrVal_961 (Array Int Int))) (<= (select (store (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_961) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_38| v_prenex_2) (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 4)) (+ |c_ULTIMATE.start_dll_create_~head~0#1.offset| 8)))) (< |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_38|))) (<= 0 |c_ULTIMATE.start_dll_create_~head~0#1.offset|) (= .cse0 |c_ULTIMATE.start_dll_create_~head~0#1.offset|)))) is different from false [2021-11-25 20:23:27,833 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse4 (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 4))) (let ((.cse1 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) .cse4))) (let ((.cse0 (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) .cse4)) (.cse3 (select |c_#length| .cse1))) (and (= |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 0) (= .cse0 0) (not (= .cse1 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|)) (forall ((|v_ULTIMATE.start_dll_update_at_~head#1.offset_38| Int)) (or (and (forall ((v_ArrVal_965 Int)) (<= 0 (select (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_38| v_ArrVal_965) (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 4)))) (forall ((v_ArrVal_965 Int) (v_ArrVal_964 Int)) (let ((.cse2 (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 4))) (<= (+ (select (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_38| v_ArrVal_965) .cse2) 4) (select |c_#length| (select (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_38| v_ArrVal_964) .cse2)))))) (< |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_38|))) (= 12 .cse3) (<= 0 .cse0) (<= (+ .cse0 12) .cse3))))) is different from false [2021-11-25 20:23:28,499 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse4 (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~head~0#1.base|)) (.cse0 (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base|)) (.cse5 (+ |c_ULTIMATE.start_dll_create_~head~0#1.offset| 4))) (let ((.cse2 (select .cse0 .cse5)) (.cse1 (select .cse4 .cse5))) (and (= (select |c_#length| (select .cse0 4)) 12) (<= (+ 12 .cse1) (select |c_#length| .cse2)) (not (= |c_ULTIMATE.start_dll_create_~head~0#1.base| .cse2)) (<= 0 .cse1) (= |c_ULTIMATE.start_dll_create_~head~0#1.offset| 0) (forall ((|v_ULTIMATE.start_dll_update_at_~head#1.offset_38| Int)) (or (and (forall ((v_ArrVal_965 Int)) (<= 0 (select (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_38| v_ArrVal_965) (+ |c_ULTIMATE.start_dll_create_~head~0#1.offset| 4)))) (forall ((v_ArrVal_965 Int) (v_ArrVal_964 Int)) (let ((.cse3 (+ |c_ULTIMATE.start_dll_create_~head~0#1.offset| 4))) (<= (+ (select (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_38| v_ArrVal_965) .cse3) 4) (select |c_#length| (select (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_38| v_ArrVal_964) .cse3)))))) (< |c_ULTIMATE.start_dll_create_~head~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_38|))) (= (select .cse4 4) 0)))) is different from false [2021-11-25 20:23:29,156 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~s~0#1.base|)) (.cse2 (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~s~0#1.base|)) (.cse5 (+ |c_ULTIMATE.start_main_~s~0#1.offset| 4))) (let ((.cse1 (select .cse2 .cse5)) (.cse3 (select .cse0 .cse5))) (and (= (select |c_#length| (select .cse0 4)) 12) (<= 0 .cse1) (= 0 (select .cse2 4)) (not (= .cse3 |c_ULTIMATE.start_main_~s~0#1.base|)) (forall ((|v_ULTIMATE.start_dll_update_at_~head#1.offset_38| Int)) (or (< |c_ULTIMATE.start_main_~s~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_38|) (and (forall ((v_ArrVal_965 Int)) (<= 0 (select (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~s~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_38| v_ArrVal_965) (+ |c_ULTIMATE.start_main_~s~0#1.offset| 4)))) (forall ((v_ArrVal_965 Int) (v_ArrVal_964 Int)) (let ((.cse4 (+ |c_ULTIMATE.start_main_~s~0#1.offset| 4))) (<= (+ (select (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~s~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_38| v_ArrVal_965) .cse4) 4) (select |c_#length| (select (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~s~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_38| v_ArrVal_964) .cse4)))))))) (<= (+ 12 .cse1) (select |c_#length| .cse3)) (= |c_ULTIMATE.start_main_~s~0#1.offset| 0)))) is different from false [2021-11-25 20:23:30,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:23:30,276 INFO L93 Difference]: Finished difference Result 226 states and 281 transitions. [2021-11-25 20:23:30,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-25 20:23:30,276 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 33 states have (on average 2.1515151515151514) internal successors, (71), 34 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2021-11-25 20:23:30,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:23:30,278 INFO L225 Difference]: With dead ends: 226 [2021-11-25 20:23:30,278 INFO L226 Difference]: Without dead ends: 226 [2021-11-25 20:23:30,280 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 45 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 10 IntricatePredicates, 0 DeprecatedPredicates, 580 ImplicationChecksByTransitivity, 15.0s TimeCoverageRelationStatistics Valid=249, Invalid=2231, Unknown=10, NotChecked=1050, Total=3540 [2021-11-25 20:23:30,281 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 536 mSDsluCounter, 809 mSDsCounter, 0 mSdLazyCounter, 1002 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 536 SdHoareTripleChecker+Valid, 623 SdHoareTripleChecker+Invalid, 1872 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 1002 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 840 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-11-25 20:23:30,281 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [536 Valid, 623 Invalid, 1872 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 1002 Invalid, 0 Unknown, 840 Unchecked, 0.8s Time] [2021-11-25 20:23:30,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2021-11-25 20:23:30,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 99. [2021-11-25 20:23:30,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 85 states have (on average 1.4823529411764707) internal successors, (126), 98 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:23:30,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 126 transitions. [2021-11-25 20:23:30,289 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 126 transitions. Word has length 25 [2021-11-25 20:23:30,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:23:30,289 INFO L470 AbstractCegarLoop]: Abstraction has 99 states and 126 transitions. [2021-11-25 20:23:30,290 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 33 states have (on average 2.1515151515151514) internal successors, (71), 34 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:23:30,290 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 126 transitions. [2021-11-25 20:23:30,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-25 20:23:30,293 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:23:30,293 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:23:30,334 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-25 20:23:30,499 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-11-25 20:23:30,499 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr15REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 19 more)] === [2021-11-25 20:23:30,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:23:30,500 INFO L85 PathProgramCache]: Analyzing trace with hash -2080372366, now seen corresponding path program 2 times [2021-11-25 20:23:30,500 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:23:30,500 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549931026] [2021-11-25 20:23:30,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:23:30,500 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:23:30,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:23:30,591 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 1 proven. 11 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-25 20:23:30,591 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:23:30,592 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549931026] [2021-11-25 20:23:30,592 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [549931026] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 20:23:30,592 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1467819079] [2021-11-25 20:23:30,592 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-25 20:23:30,592 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:23:30,593 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:23:30,593 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:23:30,612 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-25 20:23:30,737 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-11-25 20:23:30,737 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-25 20:23:30,739 INFO L263 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 27 conjunts are in the unsatisfiable core [2021-11-25 20:23:30,741 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:23:30,919 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-25 20:23:30,919 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 20:23:30,919 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1467819079] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:23:30,919 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-25 20:23:30,919 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 12 [2021-11-25 20:23:30,920 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827143282] [2021-11-25 20:23:30,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:23:30,920 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-25 20:23:30,920 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:23:30,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-25 20:23:30,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2021-11-25 20:23:30,921 INFO L87 Difference]: Start difference. First operand 99 states and 126 transitions. Second operand has 7 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:23:31,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:23:31,087 INFO L93 Difference]: Finished difference Result 116 states and 143 transitions. [2021-11-25 20:23:31,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-25 20:23:31,088 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2021-11-25 20:23:31,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:23:31,089 INFO L225 Difference]: With dead ends: 116 [2021-11-25 20:23:31,089 INFO L226 Difference]: Without dead ends: 116 [2021-11-25 20:23:31,089 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2021-11-25 20:23:31,090 INFO L933 BasicCegarLoop]: 19 mSDtfsCounter, 235 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 235 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-25 20:23:31,090 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [235 Valid, 37 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-25 20:23:31,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2021-11-25 20:23:31,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 99. [2021-11-25 20:23:31,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 85 states have (on average 1.4470588235294117) internal successors, (123), 98 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:23:31,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 123 transitions. [2021-11-25 20:23:31,094 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 123 transitions. Word has length 27 [2021-11-25 20:23:31,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:23:31,097 INFO L470 AbstractCegarLoop]: Abstraction has 99 states and 123 transitions. [2021-11-25 20:23:31,097 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 7 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:23:31,097 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 123 transitions. [2021-11-25 20:23:31,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-25 20:23:31,098 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:23:31,098 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:23:31,137 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-11-25 20:23:31,298 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:23:31,299 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 19 more)] === [2021-11-25 20:23:31,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:23:31,299 INFO L85 PathProgramCache]: Analyzing trace with hash -2077997369, now seen corresponding path program 1 times [2021-11-25 20:23:31,299 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:23:31,300 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896579360] [2021-11-25 20:23:31,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:23:31,300 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:23:31,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:23:31,398 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 1 proven. 11 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-25 20:23:31,399 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:23:31,399 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896579360] [2021-11-25 20:23:31,399 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1896579360] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 20:23:31,399 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1314269240] [2021-11-25 20:23:31,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:23:31,400 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:23:31,400 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:23:31,401 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:23:31,422 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-11-25 20:23:31,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:23:31,535 INFO L263 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-25 20:23:31,537 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:23:31,620 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-25 20:23:31,620 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 20:23:31,664 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-25 20:23:31,664 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1314269240] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 20:23:31,664 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [573525742] [2021-11-25 20:23:31,666 INFO L159 IcfgInterpreter]: Started Sifa with 18 locations of interest [2021-11-25 20:23:31,667 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 20:23:31,667 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 20:23:31,667 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 20:23:31,667 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 20:23:31,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:31,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:31,707 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2021-11-25 20:23:31,737 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:23:31,745 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:23:31,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:31,754 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2021-11-25 20:23:31,777 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:23:31,786 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:23:31,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:31,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:31,801 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 31 [2021-11-25 20:23:31,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:31,830 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:23:31,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:31,840 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:23:31,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:31,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:31,856 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 31 [2021-11-25 20:23:31,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:31,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:31,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:31,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:31,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:31,923 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 35 [2021-11-25 20:23:31,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:31,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:31,977 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-25 20:23:31,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:31,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:31,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:31,992 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2021-11-25 20:23:32,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:32,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:32,005 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-25 20:23:32,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:32,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:32,040 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2021-11-25 20:23:32,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:32,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:32,058 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2021-11-25 20:23:32,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:32,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:32,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:32,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:32,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:32,083 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-25 20:23:32,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:32,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:32,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:32,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:32,131 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-25 20:23:32,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:32,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:32,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:32,153 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2021-11-25 20:23:32,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:32,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:32,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:32,170 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2021-11-25 20:23:32,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:32,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:32,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:32,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:32,224 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-25 20:23:32,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:32,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:32,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:32,238 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 49 [2021-11-25 20:23:32,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:32,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:32,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:32,263 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 49 [2021-11-25 20:23:32,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:32,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:32,535 INFO L354 Elim1Store]: treesize reduction 34, result has 41.4 percent of original size [2021-11-25 20:23:32,536 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 29 treesize of output 43 [2021-11-25 20:23:32,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:32,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:32,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:32,608 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2021-11-25 20:23:32,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:32,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:32,623 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-25 20:23:32,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:32,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:32,643 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-25 20:23:32,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:32,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:32,683 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2021-11-25 20:23:32,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:32,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:32,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:32,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:32,701 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-25 20:23:32,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:32,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:32,723 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2021-11-25 20:23:32,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:32,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:32,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:32,760 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2021-11-25 20:23:32,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:32,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:32,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:32,775 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2021-11-25 20:23:32,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:32,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:32,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:32,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:32,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:32,807 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-25 20:23:32,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:32,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:32,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:32,878 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 49 [2021-11-25 20:23:32,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:32,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:32,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:32,897 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 49 [2021-11-25 20:23:32,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:32,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:32,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:32,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:32,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:32,921 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-25 20:23:32,978 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 20:23:32,986 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-25 20:23:33,009 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:23:33,018 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:23:33,025 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:23:33,044 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:23:33,051 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:23:33,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:33,063 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:23:33,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:33,082 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:23:33,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:33,090 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:23:33,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:33,102 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:23:33,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:33,131 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:23:33,141 INFO L354 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2021-11-25 20:23:33,141 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 34 [2021-11-25 20:23:33,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:33,154 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:23:33,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:33,164 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:23:33,176 INFO L354 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2021-11-25 20:23:33,177 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 38 [2021-11-25 20:23:33,242 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 20:23:33,250 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-25 20:23:33,266 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:23:33,274 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:23:33,283 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:23:33,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:33,298 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:23:33,305 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:23:33,313 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:23:33,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:33,331 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:23:33,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:33,339 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:23:33,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:33,350 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:23:33,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:33,379 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:23:33,391 INFO L354 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2021-11-25 20:23:33,392 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 38 [2021-11-25 20:23:33,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:33,406 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:23:33,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:33,419 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:23:33,429 INFO L354 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2021-11-25 20:23:33,429 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 34 [2021-11-25 20:23:33,559 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:23:33,577 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:23:33,588 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:23:33,668 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:23:33,677 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:23:33,687 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:23:33,772 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:23:33,782 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:23:33,792 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:23:33,918 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-25 20:23:33,926 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 20:23:33,952 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:23:33,959 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:23:33,968 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:23:34,050 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:23:34,058 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:23:34,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:34,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:34,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:34,073 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:23:34,080 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 20:23:34,080 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 198 treesize of output 184 [2021-11-25 20:23:34,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:34,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:34,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:34,177 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:23:34,184 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 20:23:34,184 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 198 treesize of output 184 [2021-11-25 20:23:34,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:34,220 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:23:34,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:34,237 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:23:34,280 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-25 20:23:36,472 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '4255#(and (<= 1 |ULTIMATE.start_dll_create_~data#1|) (= |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_dll_get_data_at_#in~index#1|) (= |ULTIMATE.start_main_~i~0#1| 0) (<= 2 |ULTIMATE.start_dll_create_#in~len#1|) (<= |ULTIMATE.start_dll_create_#res#1.offset| 0) (<= (+ |ULTIMATE.start_dll_get_data_at_~head#1.offset| 4) (select |#length| |ULTIMATE.start_dll_get_data_at_~head#1.base|)) (= |ULTIMATE.start_dll_get_data_at_#in~head#1.base| |ULTIMATE.start_main_~s~0#1.base|) (= (select (select |#memory_int| |ULTIMATE.start_dll_get_data_at_~head#1.base|) |ULTIMATE.start_dll_get_data_at_~head#1.offset|) |ULTIMATE.start_dll_get_data_at_#res#1|) (= |ULTIMATE.start_dll_get_data_at_#in~head#1.base| |ULTIMATE.start_dll_get_data_at_~head#1.base|) (<= 0 (+ |ULTIMATE.start_dll_get_data_at_#res#1| 2147483648)) (= |ULTIMATE.start_dll_get_data_at_#in~head#1.offset| |ULTIMATE.start_dll_get_data_at_~head#1.offset|) (= (+ |ULTIMATE.start_main_~len~0#1| |ULTIMATE.start_main_~i~0#1|) |ULTIMATE.start_main_~expected~0#1|) (<= 0 |ULTIMATE.start_dll_get_data_at_~head#1.offset|) (<= |ULTIMATE.start_dll_get_data_at_#res#1| 2147483647) (<= |ULTIMATE.start_dll_create_~data#1| 1) (= |ULTIMATE.start_dll_get_data_at_~index#1| |ULTIMATE.start_dll_get_data_at_#in~index#1|) (<= 0 (+ |ULTIMATE.start_dll_create_~len#1| 1)) (= |ULTIMATE.start_main_~data~0#1| 1) (<= |ULTIMATE.start_dll_create_#in~len#1| 2) (<= |ULTIMATE.start_dll_create_~len#1| 0) (<= 1 |ULTIMATE.start_dll_create_#in~data#1|) (= |ULTIMATE.start_main_~len~0#1| 2) (= |#NULL.offset| 0) (<= |ULTIMATE.start_dll_create_#in~data#1| 1) (<= |ULTIMATE.start_dll_create_~head~0#1.offset| 0) (<= 0 |ULTIMATE.start_dll_create_~head~0#1.offset|) (= 1 (select |#valid| |ULTIMATE.start_dll_get_data_at_~head#1.base|)) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~s~0#1.offset| 0) (<= 0 |ULTIMATE.start_dll_create_#res#1.offset|) (= |ULTIMATE.start_dll_get_data_at_#in~head#1.offset| |ULTIMATE.start_main_~s~0#1.offset|) (not (= |ULTIMATE.start_main_~expected~0#1| |ULTIMATE.start_dll_get_data_at_#res#1|)) (= |#NULL.base| 0))' at error location [2021-11-25 20:23:36,472 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-25 20:23:36,472 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-25 20:23:36,472 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 10 [2021-11-25 20:23:36,472 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249620394] [2021-11-25 20:23:36,472 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-25 20:23:36,473 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-25 20:23:36,473 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:23:36,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-25 20:23:36,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=437, Unknown=0, NotChecked=0, Total=552 [2021-11-25 20:23:36,474 INFO L87 Difference]: Start difference. First operand 99 states and 123 transitions. Second operand has 10 states, 10 states have (on average 4.7) internal successors, (47), 10 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:23:36,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:23:36,671 INFO L93 Difference]: Finished difference Result 96 states and 112 transitions. [2021-11-25 20:23:36,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-25 20:23:36,672 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.7) internal successors, (47), 10 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-11-25 20:23:36,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:23:36,673 INFO L225 Difference]: With dead ends: 96 [2021-11-25 20:23:36,673 INFO L226 Difference]: Without dead ends: 96 [2021-11-25 20:23:36,674 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 67 SyntacticMatches, 2 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 226 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=165, Invalid=705, Unknown=0, NotChecked=0, Total=870 [2021-11-25 20:23:36,675 INFO L933 BasicCegarLoop]: 29 mSDtfsCounter, 135 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 166 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-25 20:23:36,675 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [135 Valid, 166 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-25 20:23:36,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2021-11-25 20:23:36,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 93. [2021-11-25 20:23:36,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 79 states have (on average 1.3924050632911393) internal successors, (110), 92 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:23:36,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 110 transitions. [2021-11-25 20:23:36,679 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 110 transitions. Word has length 29 [2021-11-25 20:23:36,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:23:36,679 INFO L470 AbstractCegarLoop]: Abstraction has 93 states and 110 transitions. [2021-11-25 20:23:36,680 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.7) internal successors, (47), 10 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:23:36,680 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 110 transitions. [2021-11-25 20:23:36,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-25 20:23:36,680 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:23:36,680 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2021-11-25 20:23:36,727 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-11-25 20:23:36,911 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:23:36,911 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr8REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 19 more)] === [2021-11-25 20:23:36,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:23:36,912 INFO L85 PathProgramCache]: Analyzing trace with hash 1742752375, now seen corresponding path program 2 times [2021-11-25 20:23:36,912 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:23:36,912 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131205362] [2021-11-25 20:23:36,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:23:36,912 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:23:36,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:23:37,033 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 9 proven. 13 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-25 20:23:37,034 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:23:37,034 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131205362] [2021-11-25 20:23:37,034 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1131205362] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 20:23:37,034 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [864021661] [2021-11-25 20:23:37,035 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-25 20:23:37,035 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:23:37,035 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:23:37,036 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:23:37,063 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-11-25 20:23:37,199 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-11-25 20:23:37,200 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-25 20:23:37,201 INFO L263 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-25 20:23:37,203 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:23:37,288 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-11-25 20:23:37,288 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 20:23:37,381 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-11-25 20:23:37,381 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [864021661] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 20:23:37,382 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1396851669] [2021-11-25 20:23:37,386 INFO L159 IcfgInterpreter]: Started Sifa with 14 locations of interest [2021-11-25 20:23:37,386 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 20:23:37,386 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 20:23:37,387 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 20:23:37,387 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 20:23:37,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:37,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:37,421 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2021-11-25 20:23:37,455 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:23:37,466 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:23:37,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:37,477 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2021-11-25 20:23:37,501 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:23:37,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:37,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:37,512 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 31 [2021-11-25 20:23:37,521 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:23:37,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:37,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:37,544 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 31 [2021-11-25 20:23:37,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:37,552 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:23:37,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:37,561 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:23:37,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:37,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:37,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:37,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:37,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:37,615 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 35 [2021-11-25 20:23:37,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:37,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:37,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:37,673 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2021-11-25 20:23:37,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:37,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:37,686 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-25 20:23:37,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:37,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:37,698 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-25 20:23:37,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:37,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:37,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:37,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:37,732 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-25 20:23:37,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:37,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:37,760 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2021-11-25 20:23:37,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:37,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:37,780 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2021-11-25 20:23:37,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:37,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:37,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:37,813 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2021-11-25 20:23:37,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:37,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:37,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:37,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:37,828 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-25 20:23:37,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:37,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:37,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:37,855 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2021-11-25 20:23:37,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:37,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:37,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:37,907 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 49 [2021-11-25 20:23:37,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:37,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:37,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:37,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:37,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:37,923 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-25 20:23:37,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:37,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:37,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:37,954 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 49 [2021-11-25 20:23:38,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:38,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:38,193 INFO L354 Elim1Store]: treesize reduction 34, result has 41.4 percent of original size [2021-11-25 20:23:38,193 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 29 treesize of output 43 [2021-11-25 20:23:38,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:38,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:38,240 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-25 20:23:38,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:38,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:38,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:38,274 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2021-11-25 20:23:38,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:38,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:38,291 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-25 20:23:38,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:38,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:38,336 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2021-11-25 20:23:38,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:38,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:38,352 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2021-11-25 20:23:38,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:38,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:38,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:38,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:38,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:38,379 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-25 20:23:38,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:38,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:38,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:38,425 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2021-11-25 20:23:38,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:38,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:38,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:38,445 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2021-11-25 20:23:38,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:38,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:38,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:38,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:38,470 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-25 20:23:38,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:38,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:38,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:38,523 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 49 [2021-11-25 20:23:38,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:38,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:38,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:38,537 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 49 [2021-11-25 20:23:38,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:38,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:38,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:38,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:38,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:38,559 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-25 20:23:38,608 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-25 20:23:38,614 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 20:23:38,631 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:23:38,636 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:23:38,645 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:23:38,657 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:23:38,663 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:23:38,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:38,675 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:23:38,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:38,688 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:23:38,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:38,695 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:23:38,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:38,702 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:23:38,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:38,732 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:23:38,741 INFO L354 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2021-11-25 20:23:38,741 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 34 [2021-11-25 20:23:38,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:38,751 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:23:38,762 INFO L354 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2021-11-25 20:23:38,762 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 38 [2021-11-25 20:23:38,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:38,773 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:23:38,834 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 20:23:38,869 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-25 20:23:38,891 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:23:38,898 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:23:38,907 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:23:38,926 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:23:38,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:38,934 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:23:38,943 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:23:38,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:38,962 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:23:38,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:38,970 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:23:38,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:38,982 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:23:39,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:39,015 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:23:39,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:39,027 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:23:39,036 INFO L354 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2021-11-25 20:23:39,037 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 34 [2021-11-25 20:23:39,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:39,048 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:23:39,068 INFO L354 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2021-11-25 20:23:39,068 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 38 [2021-11-25 20:23:39,208 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:23:39,218 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:23:39,236 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:23:39,358 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:23:39,367 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:23:39,381 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:23:39,533 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:23:39,542 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:23:39,552 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:23:39,604 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-25 20:23:39,612 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 20:23:39,630 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:23:39,635 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:23:39,643 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:23:39,729 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:23:39,735 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:23:39,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:39,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:39,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:39,747 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:23:39,752 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 20:23:39,752 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 198 treesize of output 184 [2021-11-25 20:23:39,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:39,824 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:23:39,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:39,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:39,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:39,843 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:23:39,848 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 20:23:39,849 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 198 treesize of output 184 [2021-11-25 20:23:39,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:39,891 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:23:39,953 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-25 20:23:41,724 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '4653#(and (<= 0 |ULTIMATE.start_dll_update_at_#in~head#1.offset|) (<= 0 |ULTIMATE.start_main_~s~0#1.offset|) (<= 1 |ULTIMATE.start_dll_create_~data#1|) (<= 2 |ULTIMATE.start_dll_create_#in~len#1|) (<= |ULTIMATE.start_dll_create_#res#1.offset| 0) (<= 0 |ULTIMATE.start_dll_update_at_#in~index#1|) (< 0 |ULTIMATE.start_dll_update_at_~index#1|) (<= |ULTIMATE.start_dll_create_~data#1| 1) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_dll_update_at_#in~head#1.offset| 0) (<= 0 (+ |ULTIMATE.start_dll_create_~len#1| 1)) (= |ULTIMATE.start_main_~data~0#1| 1) (<= |ULTIMATE.start_dll_create_#in~len#1| 2) (<= |ULTIMATE.start_dll_create_~len#1| 0) (<= 1 |ULTIMATE.start_dll_create_#in~data#1|) (= |ULTIMATE.start_main_~len~0#1| 2) (= |#NULL.offset| 0) (<= |ULTIMATE.start_dll_create_#in~data#1| 1) (<= 2 |ULTIMATE.start_dll_update_at_~data#1|) (<= |ULTIMATE.start_dll_create_~head~0#1.offset| 0) (<= 0 |ULTIMATE.start_dll_create_~head~0#1.offset|) (not (= (select |#valid| |ULTIMATE.start_dll_update_at_~head#1.base|) 1)) (<= 2 |ULTIMATE.start_main_~new_data~0#1|) (<= 2 |ULTIMATE.start_dll_update_at_#in~data#1|) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~s~0#1.offset| 0) (<= 0 |ULTIMATE.start_dll_create_#res#1.offset|) (= |#NULL.base| 0))' at error location [2021-11-25 20:23:41,724 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-25 20:23:41,725 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-25 20:23:41,725 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4, 4] total 8 [2021-11-25 20:23:41,725 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420744551] [2021-11-25 20:23:41,725 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-25 20:23:41,725 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-25 20:23:41,726 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:23:41,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-25 20:23:41,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=329, Unknown=0, NotChecked=0, Total=420 [2021-11-25 20:23:41,727 INFO L87 Difference]: Start difference. First operand 93 states and 110 transitions. Second operand has 9 states, 9 states have (on average 4.555555555555555) internal successors, (41), 8 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:23:41,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:23:41,855 INFO L93 Difference]: Finished difference Result 85 states and 94 transitions. [2021-11-25 20:23:41,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-25 20:23:41,856 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.555555555555555) internal successors, (41), 8 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2021-11-25 20:23:41,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:23:41,856 INFO L225 Difference]: With dead ends: 85 [2021-11-25 20:23:41,857 INFO L226 Difference]: Without dead ends: 85 [2021-11-25 20:23:41,857 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 74 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 133 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=118, Invalid=482, Unknown=0, NotChecked=0, Total=600 [2021-11-25 20:23:41,858 INFO L933 BasicCegarLoop]: 27 mSDtfsCounter, 92 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-25 20:23:41,858 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [92 Valid, 120 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-25 20:23:41,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2021-11-25 20:23:41,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 81. [2021-11-25 20:23:41,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 69 states have (on average 1.318840579710145) internal successors, (91), 80 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:23:41,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 91 transitions. [2021-11-25 20:23:41,863 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 91 transitions. Word has length 30 [2021-11-25 20:23:41,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:23:41,863 INFO L470 AbstractCegarLoop]: Abstraction has 81 states and 91 transitions. [2021-11-25 20:23:41,863 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.555555555555555) internal successors, (41), 8 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:23:41,864 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 91 transitions. [2021-11-25 20:23:41,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-25 20:23:41,864 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:23:41,864 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:23:41,896 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-11-25 20:23:42,083 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:23:42,083 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 19 more)] === [2021-11-25 20:23:42,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:23:42,084 INFO L85 PathProgramCache]: Analyzing trace with hash 1650502283, now seen corresponding path program 1 times [2021-11-25 20:23:42,084 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:23:42,084 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111032397] [2021-11-25 20:23:42,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:23:42,084 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:23:42,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:23:42,505 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:23:42,505 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:23:42,505 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2111032397] [2021-11-25 20:23:42,505 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2111032397] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 20:23:42,506 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2023761892] [2021-11-25 20:23:42,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:23:42,506 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:23:42,506 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:23:42,507 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:23:42,507 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-11-25 20:23:42,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:23:42,669 INFO L263 TraceCheckSpWp]: Trace formula consists of 324 conjuncts, 82 conjunts are in the unsatisfiable core [2021-11-25 20:23:42,673 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:23:42,698 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 20:23:42,779 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-25 20:23:42,779 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-11-25 20:23:42,828 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:23:42,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:42,876 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:23:42,911 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-25 20:23:42,912 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 26 [2021-11-25 20:23:43,134 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:23:43,140 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 19 [2021-11-25 20:23:43,274 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:23:43,275 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 8 [2021-11-25 20:23:43,342 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2021-11-25 20:23:43,493 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2021-11-25 20:23:43,533 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:23:43,533 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 20:23:43,647 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_1443 (Array Int Int))) (<= |c_ULTIMATE.start_main_~len~0#1| (select (select (store |c_#memory_int| |c_ULTIMATE.start_dll_update_at_~head#1.base| v_ArrVal_1443) |c_ULTIMATE.start_main_~s~0#1.base|) |c_ULTIMATE.start_main_~s~0#1.offset|))) (forall ((v_ArrVal_1443 (Array Int Int))) (<= (select (select (store |c_#memory_int| |c_ULTIMATE.start_dll_update_at_~head#1.base| v_ArrVal_1443) |c_ULTIMATE.start_main_~s~0#1.base|) |c_ULTIMATE.start_main_~s~0#1.offset|) |c_ULTIMATE.start_main_~len~0#1|))) is different from false [2021-11-25 20:23:43,666 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_1443 (Array Int Int))) (<= (select (select (store |c_#memory_int| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_update_at_~head#1.base|) (+ |c_ULTIMATE.start_dll_update_at_~head#1.offset| 4)) v_ArrVal_1443) |c_ULTIMATE.start_main_~s~0#1.base|) |c_ULTIMATE.start_main_~s~0#1.offset|) |c_ULTIMATE.start_main_~len~0#1|)) (forall ((v_ArrVal_1443 (Array Int Int))) (<= |c_ULTIMATE.start_main_~len~0#1| (select (select (store |c_#memory_int| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_update_at_~head#1.base|) (+ |c_ULTIMATE.start_dll_update_at_~head#1.offset| 4)) v_ArrVal_1443) |c_ULTIMATE.start_main_~s~0#1.base|) |c_ULTIMATE.start_main_~s~0#1.offset|)))) is different from false [2021-11-25 20:23:43,686 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_1443 (Array Int Int))) (<= (select (select (store |c_#memory_int| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~s~0#1.base|) (+ |c_ULTIMATE.start_main_~s~0#1.offset| 4)) v_ArrVal_1443) |c_ULTIMATE.start_main_~s~0#1.base|) |c_ULTIMATE.start_main_~s~0#1.offset|) |c_ULTIMATE.start_main_~len~0#1|)) (forall ((v_ArrVal_1443 (Array Int Int))) (<= |c_ULTIMATE.start_main_~len~0#1| (select (select (store |c_#memory_int| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~s~0#1.base|) (+ |c_ULTIMATE.start_main_~s~0#1.offset| 4)) v_ArrVal_1443) |c_ULTIMATE.start_main_~s~0#1.base|) |c_ULTIMATE.start_main_~s~0#1.offset|)))) is different from false [2021-11-25 20:23:43,696 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:23:43,697 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 33 [2021-11-25 20:23:43,705 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:23:43,705 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 58 treesize of output 61 [2021-11-25 20:23:43,710 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 21 [2021-11-25 20:23:43,775 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:23:43,776 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 33 [2021-11-25 20:23:43,781 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 50 [2021-11-25 20:23:43,786 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 21 [2021-11-25 20:23:43,993 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1437 (Array Int Int)) (v_ArrVal_1442 Int)) (not (= |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (select (store (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_1437) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| v_ArrVal_1442) (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 4))))) is different from false [2021-11-25 20:23:44,011 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1437 (Array Int Int)) (v_ArrVal_1442 Int) (v_ArrVal_1436 Int)) (not (= |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (select (store (select (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 8) v_ArrVal_1436)) |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_1437) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| v_ArrVal_1442) (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 4))))) is different from false [2021-11-25 20:23:44,030 INFO L354 Elim1Store]: treesize reduction 27, result has 43.8 percent of original size [2021-11-25 20:23:44,030 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 31 treesize of output 37 [2021-11-25 20:23:44,033 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 41 [2021-11-25 20:23:44,035 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:23:44,036 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 25 [2021-11-25 20:23:44,038 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 41 [2021-11-25 20:23:44,140 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 8 not checked. [2021-11-25 20:23:44,140 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2023761892] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 20:23:44,140 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1567307649] [2021-11-25 20:23:44,142 INFO L159 IcfgInterpreter]: Started Sifa with 19 locations of interest [2021-11-25 20:23:44,142 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 20:23:44,143 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 20:23:44,143 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 20:23:44,143 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 20:23:44,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:44,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:44,181 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2021-11-25 20:23:44,206 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:23:44,215 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:23:44,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:44,227 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2021-11-25 20:23:44,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:44,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:44,255 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 31 [2021-11-25 20:23:44,263 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:23:44,277 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:23:44,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:44,301 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:23:44,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:44,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:44,313 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 31 [2021-11-25 20:23:44,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:44,338 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:23:44,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:44,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:44,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:44,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:44,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:44,411 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 35 [2021-11-25 20:23:44,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:44,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:44,460 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-25 20:23:44,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:44,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:44,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:44,477 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2021-11-25 20:23:44,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:44,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:44,495 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-25 20:23:44,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:44,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:44,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:44,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:44,535 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-25 20:23:44,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:44,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:44,551 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2021-11-25 20:23:44,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:44,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:44,577 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2021-11-25 20:23:44,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:44,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:44,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:44,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:44,621 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-25 20:23:44,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:44,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:44,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:44,639 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2021-11-25 20:23:44,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:44,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:44,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:44,658 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2021-11-25 20:23:44,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:44,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:44,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:44,712 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 49 [2021-11-25 20:23:44,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:44,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:44,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:44,730 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 49 [2021-11-25 20:23:44,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:44,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:44,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:44,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:44,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:44,755 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-25 20:23:44,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:44,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:44,979 INFO L354 Elim1Store]: treesize reduction 34, result has 41.4 percent of original size [2021-11-25 20:23:44,979 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 29 treesize of output 43 [2021-11-25 20:23:45,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:45,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:45,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:45,045 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2021-11-25 20:23:45,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:45,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:45,062 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-25 20:23:45,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:45,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:45,078 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-25 20:23:45,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:45,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:45,104 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2021-11-25 20:23:45,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:45,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:45,120 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2021-11-25 20:23:45,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:45,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:45,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:45,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:45,137 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-25 20:23:45,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:45,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:45,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:45,180 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2021-11-25 20:23:45,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:45,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:45,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:45,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:45,197 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-25 20:23:45,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:45,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:45,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:45,212 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2021-11-25 20:23:45,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:45,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:45,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:45,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:45,266 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-25 20:23:45,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:45,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:45,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:45,286 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 49 [2021-11-25 20:23:45,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:45,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:45,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:45,307 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 49 [2021-11-25 20:23:45,362 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-25 20:23:45,371 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 20:23:45,388 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:23:45,396 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:23:45,403 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:23:45,418 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:23:45,427 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:23:45,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:45,434 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:23:45,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:45,450 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:23:45,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:45,458 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:23:45,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:45,483 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:23:45,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:45,517 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:23:45,529 INFO L354 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2021-11-25 20:23:45,529 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 34 [2021-11-25 20:23:45,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:45,543 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:23:45,558 INFO L354 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2021-11-25 20:23:45,558 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 38 [2021-11-25 20:23:45,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:45,575 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:23:45,655 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 20:23:45,664 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-25 20:23:45,684 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:23:45,691 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:23:45,701 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:23:45,718 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:23:45,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:45,727 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:23:45,736 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:23:45,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:45,756 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:23:45,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:45,766 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:23:45,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:45,776 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:23:45,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:45,811 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:23:45,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:45,836 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:23:45,846 INFO L354 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2021-11-25 20:23:45,846 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 34 [2021-11-25 20:23:45,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:45,858 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:23:45,870 INFO L354 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2021-11-25 20:23:45,870 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 38 [2021-11-25 20:23:46,023 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:23:46,036 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:23:46,060 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:23:46,181 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:23:46,195 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:23:46,204 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:23:46,332 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:23:46,341 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:23:46,350 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:23:46,474 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 20:23:46,483 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-25 20:23:46,506 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:23:46,514 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:23:46,520 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:23:46,616 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:23:46,624 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:23:46,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:46,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:46,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:46,642 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:23:46,648 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 20:23:46,648 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 198 treesize of output 184 [2021-11-25 20:23:46,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:46,719 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:23:46,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:46,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:46,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:46,746 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:23:46,754 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 20:23:46,755 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 198 treesize of output 184 [2021-11-25 20:23:46,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:46,799 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:23:46,841 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-25 20:23:50,264 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '5066#(and (<= 1 |ULTIMATE.start_dll_create_~data#1|) (= |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_dll_get_data_at_#in~index#1|) (= |ULTIMATE.start_main_~i~0#1| 0) (<= 2 |ULTIMATE.start_dll_create_#in~len#1|) (<= |ULTIMATE.start_dll_create_#res#1.offset| 0) (<= (+ |ULTIMATE.start_dll_get_data_at_~head#1.offset| 4) (select |#length| |ULTIMATE.start_dll_get_data_at_~head#1.base|)) (= |ULTIMATE.start_dll_get_data_at_#in~head#1.base| |ULTIMATE.start_main_~s~0#1.base|) (= (select (select |#memory_int| |ULTIMATE.start_dll_get_data_at_~head#1.base|) |ULTIMATE.start_dll_get_data_at_~head#1.offset|) |ULTIMATE.start_dll_get_data_at_#res#1|) (= |ULTIMATE.start_dll_get_data_at_#in~head#1.base| |ULTIMATE.start_dll_get_data_at_~head#1.base|) (<= 0 (+ |ULTIMATE.start_dll_get_data_at_#res#1| 2147483648)) (= |ULTIMATE.start_dll_get_data_at_#in~head#1.offset| |ULTIMATE.start_dll_get_data_at_~head#1.offset|) (= (+ |ULTIMATE.start_main_~len~0#1| |ULTIMATE.start_main_~i~0#1|) |ULTIMATE.start_main_~expected~0#1|) (<= 0 |ULTIMATE.start_dll_get_data_at_~head#1.offset|) (<= |ULTIMATE.start_dll_get_data_at_#res#1| 2147483647) (<= |ULTIMATE.start_dll_create_~data#1| 1) (= |ULTIMATE.start_dll_get_data_at_~index#1| |ULTIMATE.start_dll_get_data_at_#in~index#1|) (<= 0 (+ |ULTIMATE.start_dll_create_~len#1| 1)) (= |ULTIMATE.start_main_~data~0#1| 1) (<= |ULTIMATE.start_dll_create_#in~len#1| 2) (<= |ULTIMATE.start_dll_create_~len#1| 0) (<= 1 |ULTIMATE.start_dll_create_#in~data#1|) (= |ULTIMATE.start_main_~len~0#1| 2) (= |#NULL.offset| 0) (<= |ULTIMATE.start_dll_create_#in~data#1| 1) (<= |ULTIMATE.start_dll_create_~head~0#1.offset| 0) (<= 0 |ULTIMATE.start_dll_create_~head~0#1.offset|) (= 1 (select |#valid| |ULTIMATE.start_dll_get_data_at_~head#1.base|)) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~s~0#1.offset| 0) (<= 0 |ULTIMATE.start_dll_create_#res#1.offset|) (= |ULTIMATE.start_dll_get_data_at_#in~head#1.offset| |ULTIMATE.start_main_~s~0#1.offset|) (not (= |ULTIMATE.start_main_~expected~0#1| |ULTIMATE.start_dll_get_data_at_#res#1|)) (= |#NULL.base| 0))' at error location [2021-11-25 20:23:50,265 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-25 20:23:50,265 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-25 20:23:50,265 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 17, 18] total 47 [2021-11-25 20:23:50,265 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093179333] [2021-11-25 20:23:50,265 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-25 20:23:50,266 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2021-11-25 20:23:50,266 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:23:50,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2021-11-25 20:23:50,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=275, Invalid=2932, Unknown=5, NotChecked=570, Total=3782 [2021-11-25 20:23:50,268 INFO L87 Difference]: Start difference. First operand 81 states and 91 transitions. Second operand has 47 states, 47 states have (on average 1.851063829787234) internal successors, (87), 47 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:23:53,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:23:53,259 INFO L93 Difference]: Finished difference Result 337 states and 373 transitions. [2021-11-25 20:23:53,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2021-11-25 20:23:53,259 INFO L78 Accepts]: Start accepts. Automaton has has 47 states, 47 states have (on average 1.851063829787234) internal successors, (87), 47 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-11-25 20:23:53,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:23:53,262 INFO L225 Difference]: With dead ends: 337 [2021-11-25 20:23:53,262 INFO L226 Difference]: Without dead ends: 337 [2021-11-25 20:23:53,267 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 50 SyntacticMatches, 13 SemanticMatches, 108 ConstructedPredicates, 5 IntricatePredicates, 3 DeprecatedPredicates, 4107 ImplicationChecksByTransitivity, 6.5s TimeCoverageRelationStatistics Valid=1031, Invalid=9904, Unknown=5, NotChecked=1050, Total=11990 [2021-11-25 20:23:53,268 INFO L933 BasicCegarLoop]: 45 mSDtfsCounter, 413 mSDsluCounter, 1024 mSDsCounter, 0 mSdLazyCounter, 1222 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 413 SdHoareTripleChecker+Valid, 825 SdHoareTripleChecker+Invalid, 2477 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 1222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1211 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-11-25 20:23:53,269 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [413 Valid, 825 Invalid, 2477 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 1222 Invalid, 0 Unknown, 1211 Unchecked, 0.8s Time] [2021-11-25 20:23:53,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2021-11-25 20:23:53,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 129. [2021-11-25 20:23:53,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 117 states have (on average 1.2735042735042734) internal successors, (149), 128 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:23:53,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 149 transitions. [2021-11-25 20:23:53,276 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 149 transitions. Word has length 31 [2021-11-25 20:23:53,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:23:53,276 INFO L470 AbstractCegarLoop]: Abstraction has 129 states and 149 transitions. [2021-11-25 20:23:53,277 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 47 states, 47 states have (on average 1.851063829787234) internal successors, (87), 47 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:23:53,277 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 149 transitions. [2021-11-25 20:23:53,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-25 20:23:53,278 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:23:53,278 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:23:53,322 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-11-25 20:23:53,503 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:23:53,503 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr10REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 19 more)] === [2021-11-25 20:23:53,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:23:53,503 INFO L85 PathProgramCache]: Analyzing trace with hash 588702923, now seen corresponding path program 2 times [2021-11-25 20:23:53,504 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:23:53,504 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702137415] [2021-11-25 20:23:53,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:23:53,504 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:23:53,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:23:53,578 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 18 proven. 5 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-25 20:23:53,578 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:23:53,579 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [702137415] [2021-11-25 20:23:53,579 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [702137415] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 20:23:53,579 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [788922776] [2021-11-25 20:23:53,579 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-25 20:23:53,580 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:23:53,580 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:23:53,596 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:23:53,618 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-11-25 20:23:53,789 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-11-25 20:23:53,789 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-25 20:23:53,792 INFO L263 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 45 conjunts are in the unsatisfiable core [2021-11-25 20:23:53,795 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:23:53,848 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-11-25 20:23:53,848 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 18 [2021-11-25 20:23:53,887 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:23:53,927 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-11-25 20:23:53,927 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:23:54,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:54,118 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 25 [2021-11-25 20:23:54,173 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 12 [2021-11-25 20:23:54,202 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 16 proven. 9 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-25 20:23:54,202 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 20:23:57,843 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 16 proven. 9 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-25 20:23:57,843 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [788922776] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 20:23:57,843 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1060352173] [2021-11-25 20:23:57,845 INFO L159 IcfgInterpreter]: Started Sifa with 14 locations of interest [2021-11-25 20:23:57,845 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 20:23:57,846 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 20:23:57,846 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 20:23:57,846 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 20:23:57,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:57,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:57,880 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2021-11-25 20:23:57,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:57,924 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2021-11-25 20:23:57,934 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:23:57,948 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:23:57,971 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:23:57,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:57,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:57,990 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 31 [2021-11-25 20:23:58,000 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:23:58,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:58,024 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:23:58,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:58,054 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:23:58,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:58,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:58,067 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 31 [2021-11-25 20:23:58,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:58,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:58,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:58,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:58,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:58,139 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 30 [2021-11-25 20:23:58,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:58,186 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2021-11-25 20:23:58,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:58,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:58,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:58,200 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2021-11-25 20:23:58,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:58,214 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2021-11-25 20:23:58,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:58,238 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2021-11-25 20:23:58,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:58,249 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2021-11-25 20:23:58,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:58,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:58,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:58,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:58,277 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-25 20:23:58,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:58,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:58,322 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 42 [2021-11-25 20:23:58,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:58,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:58,335 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 42 [2021-11-25 20:23:58,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:58,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:58,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:58,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:58,351 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-25 20:23:58,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:58,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:58,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:58,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:58,393 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-25 20:23:58,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:58,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:58,410 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:23:58,411 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 47 [2021-11-25 20:23:58,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:58,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:58,426 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:23:58,427 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 47 [2021-11-25 20:23:58,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:58,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:58,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:58,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:58,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:58,606 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 35 [2021-11-25 20:23:58,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:58,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:58,655 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-25 20:23:58,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:58,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:58,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:58,671 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2021-11-25 20:23:58,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:58,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:58,689 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-25 20:23:58,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:58,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:58,719 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2021-11-25 20:23:58,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:58,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:58,734 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2021-11-25 20:23:58,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:58,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:58,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:58,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:58,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:58,751 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-25 20:23:58,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:58,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:58,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:58,781 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2021-11-25 20:23:58,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:58,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:58,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:58,808 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2021-11-25 20:23:58,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:58,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:58,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:58,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:58,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:58,824 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-25 20:23:58,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:58,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:58,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:58,871 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 49 [2021-11-25 20:23:58,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:58,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:58,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:58,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:58,890 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-25 20:23:58,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:58,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:58,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:58,909 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 49 [2021-11-25 20:23:59,177 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:23:59,189 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:23:59,201 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:23:59,295 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:23:59,301 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:23:59,321 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:23:59,450 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:23:59,457 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:23:59,470 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:23:59,502 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 20:23:59,508 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-25 20:23:59,550 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:23:59,557 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:23:59,566 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:23:59,597 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:23:59,603 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:23:59,609 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:23:59,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:59,645 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:23:59,652 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:23:59,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:23:59,667 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:23:59,681 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-25 20:24:02,012 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '5865#(and (<= 0 |ULTIMATE.start_dll_update_at_#in~head#1.offset|) (<= 0 |ULTIMATE.start_main_~s~0#1.offset|) (<= 1 |ULTIMATE.start_dll_create_~data#1|) (<= 2 |ULTIMATE.start_dll_create_#in~len#1|) (<= |ULTIMATE.start_dll_create_#res#1.offset| 0) (<= |ULTIMATE.start_dll_create_~data#1| 1) (<= |ULTIMATE.start_dll_update_at_~index#1| 0) (<= |ULTIMATE.start_dll_update_at_#in~head#1.offset| 0) (= |ULTIMATE.start_main_~data~0#1| 1) (<= 0 |ULTIMATE.start_dll_create_~len#1|) (<= |ULTIMATE.start_dll_create_#in~len#1| 2) (<= |ULTIMATE.start_dll_create_~len#1| 0) (<= 1 |ULTIMATE.start_dll_create_#in~data#1|) (= |ULTIMATE.start_main_~len~0#1| 2) (= |#NULL.offset| 0) (<= |ULTIMATE.start_dll_create_#in~data#1| 1) (<= |ULTIMATE.start_dll_create_~head~0#1.offset| 0) (<= 0 |ULTIMATE.start_dll_create_~head~0#1.offset|) (not (= (select |#valid| |ULTIMATE.start_dll_update_at_~head#1.base|) 1)) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~s~0#1.offset| 0) (<= 0 |ULTIMATE.start_dll_create_#res#1.offset|) (= |#NULL.base| 0))' at error location [2021-11-25 20:24:02,012 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-25 20:24:02,012 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-25 20:24:02,012 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 11, 10] total 23 [2021-11-25 20:24:02,012 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332734520] [2021-11-25 20:24:02,012 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-25 20:24:02,013 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-11-25 20:24:02,013 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:24:02,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-11-25 20:24:02,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=146, Invalid=1044, Unknown=0, NotChecked=0, Total=1190 [2021-11-25 20:24:02,014 INFO L87 Difference]: Start difference. First operand 129 states and 149 transitions. Second operand has 23 states, 23 states have (on average 3.217391304347826) internal successors, (74), 23 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:24:04,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:24:04,624 INFO L93 Difference]: Finished difference Result 109 states and 115 transitions. [2021-11-25 20:24:04,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-25 20:24:04,626 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 3.217391304347826) internal successors, (74), 23 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2021-11-25 20:24:04,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:24:04,627 INFO L225 Difference]: With dead ends: 109 [2021-11-25 20:24:04,627 INFO L226 Difference]: Without dead ends: 109 [2021-11-25 20:24:04,628 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 63 SyntacticMatches, 3 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 461 ImplicationChecksByTransitivity, 8.3s TimeCoverageRelationStatistics Valid=249, Invalid=1556, Unknown=1, NotChecked=0, Total=1806 [2021-11-25 20:24:04,629 INFO L933 BasicCegarLoop]: 16 mSDtfsCounter, 62 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 428 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 182 SdHoareTripleChecker+Invalid, 448 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 428 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 4 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-25 20:24:04,629 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [62 Valid, 182 Invalid, 448 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 428 Invalid, 0 Unknown, 4 Unchecked, 0.3s Time] [2021-11-25 20:24:04,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2021-11-25 20:24:04,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 96. [2021-11-25 20:24:04,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 85 states have (on average 1.223529411764706) internal successors, (104), 95 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:24:04,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 104 transitions. [2021-11-25 20:24:04,632 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 104 transitions. Word has length 32 [2021-11-25 20:24:04,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:24:04,633 INFO L470 AbstractCegarLoop]: Abstraction has 96 states and 104 transitions. [2021-11-25 20:24:04,633 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 3.217391304347826) internal successors, (74), 23 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:24:04,633 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 104 transitions. [2021-11-25 20:24:04,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-11-25 20:24:04,634 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:24:04,634 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:24:04,659 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2021-11-25 20:24:04,843 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:24:04,843 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr11REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 19 more)] === [2021-11-25 20:24:04,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:24:04,844 INFO L85 PathProgramCache]: Analyzing trace with hash -1524755747, now seen corresponding path program 2 times [2021-11-25 20:24:04,844 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:24:04,844 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121668229] [2021-11-25 20:24:04,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:24:04,844 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:24:04,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:24:04,927 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 17 proven. 8 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-25 20:24:04,927 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:24:04,927 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2121668229] [2021-11-25 20:24:04,927 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2121668229] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 20:24:04,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1623365610] [2021-11-25 20:24:04,928 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-25 20:24:04,928 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:24:04,928 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:24:04,929 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:24:04,947 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-11-25 20:24:05,188 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-11-25 20:24:05,188 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-25 20:24:05,191 INFO L263 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 64 conjunts are in the unsatisfiable core [2021-11-25 20:24:05,195 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:24:05,271 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-25 20:24:05,271 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-11-25 20:24:05,304 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:24:05,311 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:24:05,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:24:05,352 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:24:05,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:24:05,363 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:24:05,441 INFO L354 Elim1Store]: treesize reduction 47, result has 16.1 percent of original size [2021-11-25 20:24:05,441 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 92 treesize of output 64 [2021-11-25 20:24:05,446 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 59 [2021-11-25 20:24:05,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:24:05,703 INFO L354 Elim1Store]: treesize reduction 71, result has 17.4 percent of original size [2021-11-25 20:24:05,703 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 83 treesize of output 70 [2021-11-25 20:24:05,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:24:05,709 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 82 treesize of output 69 [2021-11-25 20:24:05,800 INFO L354 Elim1Store]: treesize reduction 21, result has 4.5 percent of original size [2021-11-25 20:24:05,800 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 81 treesize of output 42 [2021-11-25 20:24:05,804 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 22 [2021-11-25 20:24:05,833 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 16 proven. 10 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-25 20:24:05,833 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 20:24:08,079 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_dll_update_at_~head#1.offset_75| Int)) (or (and (forall ((v_ArrVal_1765 Int)) (<= 0 (select (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~s~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_75| v_ArrVal_1765) (+ |c_ULTIMATE.start_main_~s~0#1.offset| 4)))) (forall ((v_ArrVal_1763 Int) (v_ArrVal_1765 Int)) (let ((.cse0 (+ |c_ULTIMATE.start_main_~s~0#1.offset| 4))) (<= (+ (select (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~s~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_75| v_ArrVal_1765) .cse0) 4) (select |c_#length| (select (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~s~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_75| v_ArrVal_1763) .cse0)))))) (< |c_ULTIMATE.start_main_~s~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_75|))) is different from false [2021-11-25 20:24:10,118 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_dll_update_at_~head#1.offset_75| Int)) (or (< |c_ULTIMATE.start_dll_create_~head~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_75|) (and (forall ((v_ArrVal_1763 Int) (v_ArrVal_1765 Int)) (let ((.cse0 (+ |c_ULTIMATE.start_dll_create_~head~0#1.offset| 4))) (<= (+ (select (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_75| v_ArrVal_1765) .cse0) 4) (select |c_#length| (select (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_75| v_ArrVal_1763) .cse0))))) (forall ((v_ArrVal_1765 Int)) (<= 0 (select (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_75| v_ArrVal_1765) (+ |c_ULTIMATE.start_dll_create_~head~0#1.offset| 4))))))) is different from false [2021-11-25 20:24:12,144 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_dll_update_at_~head#1.offset_75| Int)) (or (and (forall ((v_ArrVal_1763 Int) (v_ArrVal_1765 Int)) (let ((.cse0 (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 4))) (<= (+ (select (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_75| v_ArrVal_1765) .cse0) 4) (select |c_#length| (select (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_75| v_ArrVal_1763) .cse0))))) (forall ((v_ArrVal_1765 Int)) (<= 0 (select (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_75| v_ArrVal_1765) (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 4))))) (< |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_75|))) is different from false [2021-11-25 20:24:12,571 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:24:12,571 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 143 treesize of output 200 [2021-11-25 20:24:36,873 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:24:39,065 INFO L354 Elim1Store]: treesize reduction 120, result has 40.3 percent of original size [2021-11-25 20:24:39,066 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 6 case distinctions, treesize of input 809 treesize of output 770 [2021-11-25 20:24:39,080 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:24:39,547 INFO L354 Elim1Store]: treesize reduction 432, result has 52.1 percent of original size [2021-11-25 20:24:39,548 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 9 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 9 new quantified variables, introduced 27 case distinctions, treesize of input 770 treesize of output 758 [2021-11-25 20:24:39,576 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:24:39,576 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 758 treesize of output 758 [2021-11-25 20:24:39,615 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:24:39,616 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 758 treesize of output 758 [2021-11-25 20:24:39,651 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:24:39,652 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 758 treesize of output 758 [2021-11-25 20:24:39,684 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:24:39,684 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 758 treesize of output 756 [2021-11-25 20:24:39,727 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:24:39,728 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 756 treesize of output 756 [2021-11-25 20:24:39,781 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:24:39,782 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 756 treesize of output 754 [2021-11-25 20:24:39,835 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:24:39,836 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 754 treesize of output 754 [2021-11-25 20:24:39,891 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:24:39,892 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 754 treesize of output 752 [2021-11-25 20:24:39,964 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:24:39,965 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 752 treesize of output 750 [2021-11-25 20:24:40,032 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:24:40,033 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 750 treesize of output 750 [2021-11-25 20:24:40,101 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:24:40,102 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 750 treesize of output 750 [2021-11-25 20:24:40,549 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 4 [2021-11-25 20:24:40,623 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:24:40,628 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 20 [2021-11-25 20:24:40,892 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 4 [2021-11-25 20:24:40,962 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 4 [2021-11-25 20:24:41,011 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:24:41,028 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:24:41,029 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 90 treesize of output 86 [2021-11-25 20:24:41,345 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:24:41,351 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:24:41,369 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:24:41,370 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 93 treesize of output 101 [2021-11-25 20:24:41,543 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 4 [2021-11-25 20:24:41,604 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:24:41,604 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 25 [2021-11-25 20:24:41,693 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 4 [2021-11-25 20:24:41,750 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:24:41,751 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 35 [2021-11-25 20:24:41,791 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 4 [2021-11-25 20:24:41,862 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:24:41,863 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 35 [2021-11-25 20:24:41,911 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 4 [2021-11-25 20:24:41,965 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2021-11-25 20:24:42,015 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 4 [2021-11-25 20:24:47,003 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:24:47,007 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 28 [2021-11-25 20:24:47,109 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:24:47,109 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 35 [2021-11-25 20:24:47,129 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:24:47,140 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:24:47,141 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 49 treesize of output 49 [2021-11-25 20:24:47,232 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:24:47,232 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 35 [2021-11-25 20:24:47,273 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 4 [2021-11-25 20:24:47,300 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:24:47,301 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 35 [2021-11-25 20:24:47,329 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:24:47,330 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 41 [2021-11-25 20:24:47,372 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:24:47,372 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 61 treesize of output 61 [2021-11-25 20:24:47,703 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 16 proven. 8 refuted. 0 times theorem prover too weak. 3 trivial. 3 not checked. [2021-11-25 20:24:47,704 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1623365610] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 20:24:47,704 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [580412480] [2021-11-25 20:24:47,705 INFO L159 IcfgInterpreter]: Started Sifa with 14 locations of interest [2021-11-25 20:24:47,705 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 20:24:47,706 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 20:24:47,706 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 20:24:47,706 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 20:24:47,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:24:47,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:24:47,745 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2021-11-25 20:24:47,774 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:24:47,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:24:47,786 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2021-11-25 20:24:47,796 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:24:47,817 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:24:47,835 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:24:47,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:24:47,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:24:47,846 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 31 [2021-11-25 20:24:47,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:24:47,871 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:24:47,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:24:47,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:24:47,881 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 31 [2021-11-25 20:24:47,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:24:47,893 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:24:47,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:24:47,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:24:47,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:24:47,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:24:47,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:24:47,954 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 30 [2021-11-25 20:24:47,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:24:47,991 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2021-11-25 20:24:48,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:24:48,003 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2021-11-25 20:24:48,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:24:48,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:24:48,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:24:48,027 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2021-11-25 20:24:48,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:24:48,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:24:48,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:24:48,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:24:48,061 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-25 20:24:48,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:24:48,080 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2021-11-25 20:24:48,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:24:48,091 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2021-11-25 20:24:48,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:24:48,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:24:48,119 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 42 [2021-11-25 20:24:48,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:24:48,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:24:48,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:24:48,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:24:48,138 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-25 20:24:48,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:24:48,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:24:48,157 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 42 [2021-11-25 20:24:48,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:24:48,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:24:48,202 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:24:48,202 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 47 [2021-11-25 20:24:48,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:24:48,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:24:48,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:24:48,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:24:48,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:24:48,224 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-25 20:24:48,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:24:48,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:24:48,243 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:24:48,244 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 47 [2021-11-25 20:24:48,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:24:48,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:24:48,482 INFO L354 Elim1Store]: treesize reduction 34, result has 41.4 percent of original size [2021-11-25 20:24:48,482 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 29 treesize of output 43 [2021-11-25 20:24:48,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:24:48,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:24:48,535 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-25 20:24:48,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:24:48,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:24:48,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:24:48,551 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2021-11-25 20:24:48,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:24:48,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:24:48,564 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-25 20:24:48,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:24:48,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:24:48,599 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2021-11-25 20:24:48,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:24:48,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:24:48,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:24:48,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:24:48,616 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-25 20:24:48,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:24:48,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:24:48,637 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2021-11-25 20:24:48,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:24:48,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:24:48,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:24:48,672 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2021-11-25 20:24:48,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:24:48,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:24:48,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:24:48,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:24:48,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:24:48,693 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-25 20:24:48,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:24:48,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:24:48,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:24:48,711 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2021-11-25 20:24:48,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:24:48,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:24:48,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:24:48,763 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 49 [2021-11-25 20:24:48,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:24:48,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:24:48,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:24:48,781 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 49 [2021-11-25 20:24:48,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:24:48,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:24:48,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:24:48,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:24:48,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:24:48,806 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-25 20:24:48,841 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 20:24:48,846 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-25 20:24:48,879 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:24:48,887 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:24:48,898 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:24:48,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:24:48,912 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:24:48,919 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:24:48,926 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:24:48,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:24:48,945 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:24:48,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:24:48,955 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:24:48,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:24:48,965 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:24:48,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:24:48,992 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:24:49,004 INFO L354 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2021-11-25 20:24:49,004 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 38 [2021-11-25 20:24:49,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:24:49,016 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:24:49,026 INFO L354 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2021-11-25 20:24:49,026 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 34 [2021-11-25 20:24:49,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:24:49,037 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:24:49,119 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-25 20:24:49,130 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 20:24:49,151 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:24:49,159 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:24:49,167 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:24:49,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:24:49,191 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:24:49,199 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:24:49,211 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:24:49,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:24:49,233 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:24:49,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:24:49,244 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:24:49,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:24:49,255 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:24:49,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:24:49,291 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:24:49,303 INFO L354 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2021-11-25 20:24:49,303 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 34 [2021-11-25 20:24:49,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:24:49,317 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:24:49,334 INFO L354 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2021-11-25 20:24:49,335 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 38 [2021-11-25 20:24:49,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:24:49,354 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:24:49,495 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:24:49,513 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:24:49,524 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:24:49,648 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:24:49,659 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:24:49,675 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:24:49,830 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:24:49,840 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:24:49,853 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:24:49,927 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-25 20:24:49,935 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 20:24:49,959 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:24:49,966 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:24:49,975 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:24:50,055 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:24:50,062 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:24:50,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:24:50,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:24:50,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:24:50,075 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:24:50,081 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 20:24:50,082 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 198 treesize of output 184 [2021-11-25 20:24:50,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:24:50,141 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:24:50,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:24:50,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:24:50,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:24:50,187 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:24:50,195 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 20:24:50,196 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 198 treesize of output 184 [2021-11-25 20:24:50,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:24:50,230 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:24:50,260 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-25 20:24:52,793 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '6318#(and (<= 0 |ULTIMATE.start_dll_update_at_#in~head#1.offset|) (<= 0 |ULTIMATE.start_main_~s~0#1.offset|) (<= 1 |ULTIMATE.start_dll_create_~data#1|) (<= 2 |ULTIMATE.start_dll_create_#in~len#1|) (or (< (select |#length| |ULTIMATE.start_dll_update_at_~head#1.base|) (+ |ULTIMATE.start_dll_update_at_~head#1.offset| 4)) (< |ULTIMATE.start_dll_update_at_~head#1.offset| 0)) (<= |ULTIMATE.start_dll_create_#res#1.offset| 0) (<= 0 |ULTIMATE.start_dll_update_at_#in~index#1|) (<= |ULTIMATE.start_dll_create_~data#1| 1) (<= |ULTIMATE.start_dll_update_at_~index#1| 0) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_dll_update_at_#in~head#1.offset| 0) (<= 0 (+ |ULTIMATE.start_dll_create_~len#1| 1)) (= |ULTIMATE.start_main_~data~0#1| 1) (<= |ULTIMATE.start_dll_create_#in~len#1| 2) (<= |ULTIMATE.start_dll_create_~len#1| 0) (<= 1 |ULTIMATE.start_dll_create_#in~data#1|) (= |ULTIMATE.start_main_~len~0#1| 2) (= |#NULL.offset| 0) (<= |ULTIMATE.start_dll_create_#in~data#1| 1) (<= 2 |ULTIMATE.start_dll_update_at_~data#1|) (<= |ULTIMATE.start_dll_create_~head~0#1.offset| 0) (<= 0 |ULTIMATE.start_dll_create_~head~0#1.offset|) (<= 2 |ULTIMATE.start_main_~new_data~0#1|) (<= 2 |ULTIMATE.start_dll_update_at_#in~data#1|) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~s~0#1.offset| 0) (<= 0 |ULTIMATE.start_dll_create_#res#1.offset|) (= |#NULL.base| 0))' at error location [2021-11-25 20:24:52,793 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-25 20:24:52,793 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-25 20:24:52,794 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 12, 13] total 27 [2021-11-25 20:24:52,794 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96530117] [2021-11-25 20:24:52,794 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-25 20:24:52,794 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2021-11-25 20:24:52,795 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:24:52,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-11-25 20:24:52,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=152, Invalid=1110, Unknown=10, NotChecked=210, Total=1482 [2021-11-25 20:24:52,796 INFO L87 Difference]: Start difference. First operand 96 states and 104 transitions. Second operand has 27 states, 27 states have (on average 3.074074074074074) internal successors, (83), 27 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:24:55,043 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse4 (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 4))) (let ((.cse3 (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) .cse4))) (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) .cse4)) (.cse2 (+ .cse3 8))) (and (= (select |c_#valid| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) 1) (not (= .cse0 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|)) (forall ((|v_ULTIMATE.start_dll_update_at_~head#1.offset_75| Int)) (or (and (forall ((v_ArrVal_1763 Int) (v_ArrVal_1765 Int)) (let ((.cse1 (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 4))) (<= (+ (select (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_75| v_ArrVal_1765) .cse1) 4) (select |c_#length| (select (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_75| v_ArrVal_1763) .cse1))))) (forall ((v_ArrVal_1765 Int)) (<= 0 (select (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_75| v_ArrVal_1765) (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 4))))) (< |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_75|))) (= (select (select |c_#memory_$Pointer$.base| .cse0) .cse2) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) (<= |c_ULTIMATE.start_dll_create_~len#1| 1) (<= 0 .cse3) (<= 0 |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|) (<= (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 12) (select |c_#length| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|)) (<= (+ .cse3 12) (select |c_#length| .cse0)) (<= (select (select |c_#memory_$Pointer$.offset| .cse0) .cse2) |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|))))) is different from false [2021-11-25 20:24:57,047 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse4 (+ |c_ULTIMATE.start_dll_create_~head~0#1.offset| 4))) (let ((.cse0 (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~head~0#1.base|) .cse4))) (let ((.cse1 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base|) .cse4)) (.cse3 (+ 8 .cse0))) (and (= (select |c_#valid| |c_ULTIMATE.start_dll_create_~head~0#1.base|) 1) (<= (+ 12 .cse0) (select |c_#length| .cse1)) (not (= |c_ULTIMATE.start_dll_create_~head~0#1.base| .cse1)) (forall ((|v_ULTIMATE.start_dll_update_at_~head#1.offset_75| Int)) (or (< |c_ULTIMATE.start_dll_create_~head~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_75|) (and (forall ((v_ArrVal_1763 Int) (v_ArrVal_1765 Int)) (let ((.cse2 (+ |c_ULTIMATE.start_dll_create_~head~0#1.offset| 4))) (<= (+ (select (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_75| v_ArrVal_1765) .cse2) 4) (select |c_#length| (select (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_75| v_ArrVal_1763) .cse2))))) (forall ((v_ArrVal_1765 Int)) (<= 0 (select (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_75| v_ArrVal_1765) (+ |c_ULTIMATE.start_dll_create_~head~0#1.offset| 4))))))) (<= |c_ULTIMATE.start_dll_create_~len#1| 0) (<= 0 .cse0) (= |c_ULTIMATE.start_dll_create_~head~0#1.base| (select (select |c_#memory_$Pointer$.base| .cse1) .cse3)) (<= 0 |c_ULTIMATE.start_dll_create_~head~0#1.offset|) (<= (select (select |c_#memory_$Pointer$.offset| .cse1) .cse3) |c_ULTIMATE.start_dll_create_~head~0#1.offset|) (<= (+ |c_ULTIMATE.start_dll_create_~head~0#1.offset| 12) (select |c_#length| |c_ULTIMATE.start_dll_create_~head~0#1.base|)))))) is different from false [2021-11-25 20:24:59,050 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse4 (+ |c_ULTIMATE.start_main_~s~0#1.offset| 4))) (let ((.cse0 (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~s~0#1.base|) .cse4))) (let ((.cse2 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~s~0#1.base|) .cse4)) (.cse3 (+ 8 .cse0))) (and (<= 0 .cse0) (forall ((|v_ULTIMATE.start_dll_update_at_~head#1.offset_75| Int)) (or (and (forall ((v_ArrVal_1765 Int)) (<= 0 (select (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~s~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_75| v_ArrVal_1765) (+ |c_ULTIMATE.start_main_~s~0#1.offset| 4)))) (forall ((v_ArrVal_1763 Int) (v_ArrVal_1765 Int)) (let ((.cse1 (+ |c_ULTIMATE.start_main_~s~0#1.offset| 4))) (<= (+ (select (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~s~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_75| v_ArrVal_1765) .cse1) 4) (select |c_#length| (select (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~s~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_75| v_ArrVal_1763) .cse1)))))) (< |c_ULTIMATE.start_main_~s~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_75|))) (not (= .cse2 |c_ULTIMATE.start_main_~s~0#1.base|)) (<= (select (select |c_#memory_$Pointer$.offset| .cse2) .cse3) |c_ULTIMATE.start_main_~s~0#1.offset|) (<= (+ 12 .cse0) (select |c_#length| .cse2)) (= (select (select |c_#memory_$Pointer$.base| .cse2) .cse3) |c_ULTIMATE.start_main_~s~0#1.base|) (<= (+ |c_ULTIMATE.start_main_~s~0#1.offset| 12) (select |c_#length| |c_ULTIMATE.start_main_~s~0#1.base|)))))) is different from false [2021-11-25 20:24:59,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:24:59,380 INFO L93 Difference]: Finished difference Result 58 states and 62 transitions. [2021-11-25 20:24:59,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-25 20:24:59,381 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 3.074074074074074) internal successors, (83), 27 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-11-25 20:24:59,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:24:59,382 INFO L225 Difference]: With dead ends: 58 [2021-11-25 20:24:59,382 INFO L226 Difference]: Without dead ends: 58 [2021-11-25 20:24:59,383 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 6 IntricatePredicates, 0 DeprecatedPredicates, 453 ImplicationChecksByTransitivity, 33.7s TimeCoverageRelationStatistics Valid=229, Invalid=1762, Unknown=13, NotChecked=546, Total=2550 [2021-11-25 20:24:59,384 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 64 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 234 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 269 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-25 20:24:59,384 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [64 Valid, 200 Invalid, 516 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 234 Invalid, 0 Unknown, 269 Unchecked, 0.2s Time] [2021-11-25 20:24:59,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2021-11-25 20:24:59,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2021-11-25 20:24:59,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 48 states have (on average 1.2916666666666667) internal successors, (62), 57 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:24:59,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 62 transitions. [2021-11-25 20:24:59,388 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 62 transitions. Word has length 33 [2021-11-25 20:24:59,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:24:59,388 INFO L470 AbstractCegarLoop]: Abstraction has 58 states and 62 transitions. [2021-11-25 20:24:59,389 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 3.074074074074074) internal successors, (83), 27 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:24:59,389 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 62 transitions. [2021-11-25 20:24:59,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-11-25 20:24:59,389 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:24:59,390 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:24:59,421 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2021-11-25 20:24:59,607 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2021-11-25 20:24:59,607 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr12REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 19 more)] === [2021-11-25 20:24:59,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:24:59,608 INFO L85 PathProgramCache]: Analyzing trace with hash -603885301, now seen corresponding path program 1 times [2021-11-25 20:24:59,608 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:24:59,608 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792363724] [2021-11-25 20:24:59,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:24:59,608 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:24:59,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:24:59,680 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-11-25 20:24:59,680 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:24:59,680 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792363724] [2021-11-25 20:24:59,681 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [792363724] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 20:24:59,681 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [649320819] [2021-11-25 20:24:59,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:24:59,681 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:24:59,682 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:24:59,682 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:24:59,703 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2021-11-25 20:24:59,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:24:59,896 INFO L263 TraceCheckSpWp]: Trace formula consists of 354 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-25 20:24:59,897 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:24:59,951 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-11-25 20:24:59,952 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 20:24:59,993 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-11-25 20:24:59,993 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [649320819] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 20:24:59,994 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [626754508] [2021-11-25 20:24:59,995 INFO L159 IcfgInterpreter]: Started Sifa with 19 locations of interest [2021-11-25 20:24:59,996 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 20:24:59,996 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 20:24:59,996 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 20:24:59,996 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 20:25:00,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:00,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:00,034 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2021-11-25 20:25:00,063 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:25:00,070 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:25:00,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:00,082 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2021-11-25 20:25:00,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:00,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:00,115 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 31 [2021-11-25 20:25:00,129 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:25:00,136 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:25:00,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:00,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:00,156 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 31 [2021-11-25 20:25:00,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:00,170 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:25:00,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:00,182 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:25:00,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:00,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:00,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:00,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:00,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:00,251 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 35 [2021-11-25 20:25:00,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:00,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:00,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:00,292 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2021-11-25 20:25:00,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:00,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:00,303 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-25 20:25:00,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:00,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:00,313 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-25 20:25:00,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:00,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:00,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:00,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:00,347 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-25 20:25:00,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:00,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:00,362 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2021-11-25 20:25:00,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:00,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:00,378 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2021-11-25 20:25:00,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:00,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:00,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:00,408 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2021-11-25 20:25:00,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:00,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:00,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:00,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:00,423 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-25 20:25:00,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:00,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:00,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:00,447 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2021-11-25 20:25:00,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:00,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:00,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:00,495 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 49 [2021-11-25 20:25:00,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:00,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:00,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:00,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:00,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:00,518 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-25 20:25:00,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:00,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:00,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:00,534 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 49 [2021-11-25 20:25:00,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:00,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:00,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:00,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:00,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:00,726 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 35 [2021-11-25 20:25:00,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:00,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:00,773 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-25 20:25:00,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:00,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:00,784 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-25 20:25:00,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:00,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:00,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:00,798 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2021-11-25 20:25:00,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:00,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:00,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:00,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:00,832 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-25 20:25:00,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:00,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:00,845 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2021-11-25 20:25:00,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:00,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:00,860 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2021-11-25 20:25:00,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:00,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:00,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:00,891 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2021-11-25 20:25:00,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:00,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:00,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:00,906 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2021-11-25 20:25:00,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:00,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:00,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:00,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:00,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:00,924 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-25 20:25:00,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:00,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:00,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:00,969 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 49 [2021-11-25 20:25:00,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:00,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:00,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:00,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:00,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:00,987 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-25 20:25:00,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:00,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:00,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:01,000 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 49 [2021-11-25 20:25:01,200 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:25:01,210 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:25:01,222 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:25:01,366 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:25:01,374 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:25:01,383 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:25:01,505 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:25:01,514 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:25:01,522 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:25:02,844 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-25 20:25:02,857 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 20:25:02,887 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:25:02,901 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:25:02,910 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:25:02,938 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:25:02,945 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:25:02,951 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:25:02,979 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:25:02,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:02,987 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:25:02,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:02,997 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:25:03,018 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-25 20:25:06,075 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '6684#(and (<= 0 |ULTIMATE.start_main_~s~0#1.offset|) (<= |ULTIMATE.start_dll_get_data_at_#in~head#1.offset| 0) (<= 1 |ULTIMATE.start_dll_create_~data#1|) (< 0 |ULTIMATE.start_dll_get_data_at_~index#1|) (<= |ULTIMATE.start_main_~expected~0#1| 4) (<= 2 |ULTIMATE.start_dll_create_#in~len#1|) (<= |ULTIMATE.start_dll_create_#res#1.offset| 0) (<= |ULTIMATE.start_dll_get_data_at_#in~index#1| 2) (<= |ULTIMATE.start_main_~i~0#1| 2) (<= |ULTIMATE.start_dll_create_~data#1| 1) (<= |ULTIMATE.start_dll_get_data_at_~index#1| 2) (<= 0 |ULTIMATE.start_main_~i~0#1|) (= |ULTIMATE.start_main_~data~0#1| 1) (<= 0 |ULTIMATE.start_dll_get_data_at_#in~head#1.offset|) (<= 0 |ULTIMATE.start_dll_create_~len#1|) (<= |ULTIMATE.start_dll_create_#in~len#1| 2) (<= 0 |ULTIMATE.start_dll_get_data_at_#in~index#1|) (not (= 1 (select |#valid| |ULTIMATE.start_dll_get_data_at_~head#1.base|))) (<= |ULTIMATE.start_dll_create_~len#1| 0) (<= 1 |ULTIMATE.start_dll_create_#in~data#1|) (= |ULTIMATE.start_main_~len~0#1| 2) (= |#NULL.offset| 0) (<= |ULTIMATE.start_dll_create_#in~data#1| 1) (<= |ULTIMATE.start_dll_create_~head~0#1.offset| 0) (<= 0 |ULTIMATE.start_dll_create_~head~0#1.offset|) (<= 2 |ULTIMATE.start_main_~expected~0#1|) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~s~0#1.offset| 0) (<= 0 |ULTIMATE.start_dll_create_#res#1.offset|) (= |#NULL.base| 0))' at error location [2021-11-25 20:25:06,075 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-25 20:25:06,075 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-25 20:25:06,076 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 7 [2021-11-25 20:25:06,076 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616334050] [2021-11-25 20:25:06,076 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-25 20:25:06,076 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-25 20:25:06,076 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:25:06,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-25 20:25:06,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=467, Unknown=0, NotChecked=0, Total=552 [2021-11-25 20:25:06,077 INFO L87 Difference]: Start difference. First operand 58 states and 62 transitions. Second operand has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 7 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:25:06,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:25:06,148 INFO L93 Difference]: Finished difference Result 55 states and 58 transitions. [2021-11-25 20:25:06,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-25 20:25:06,149 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 7 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2021-11-25 20:25:06,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:25:06,150 INFO L225 Difference]: With dead ends: 55 [2021-11-25 20:25:06,150 INFO L226 Difference]: Without dead ends: 55 [2021-11-25 20:25:06,151 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 203 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=104, Invalid=598, Unknown=0, NotChecked=0, Total=702 [2021-11-25 20:25:06,151 INFO L933 BasicCegarLoop]: 23 mSDtfsCounter, 55 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-25 20:25:06,152 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [55 Valid, 97 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-25 20:25:06,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2021-11-25 20:25:06,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2021-11-25 20:25:06,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 47 states have (on average 1.2340425531914894) internal successors, (58), 54 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:25:06,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 58 transitions. [2021-11-25 20:25:06,155 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 58 transitions. Word has length 35 [2021-11-25 20:25:06,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:25:06,155 INFO L470 AbstractCegarLoop]: Abstraction has 55 states and 58 transitions. [2021-11-25 20:25:06,155 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 7 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:25:06,156 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 58 transitions. [2021-11-25 20:25:06,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-11-25 20:25:06,156 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:25:06,156 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:25:06,186 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2021-11-25 20:25:06,363 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2021-11-25 20:25:06,363 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 19 more)] === [2021-11-25 20:25:06,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:25:06,364 INFO L85 PathProgramCache]: Analyzing trace with hash -603883124, now seen corresponding path program 1 times [2021-11-25 20:25:06,364 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:25:06,364 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122105616] [2021-11-25 20:25:06,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:25:06,364 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:25:06,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:25:06,726 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 4 proven. 15 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-25 20:25:06,727 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:25:06,727 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122105616] [2021-11-25 20:25:06,727 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2122105616] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 20:25:06,727 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1997538055] [2021-11-25 20:25:06,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:25:06,727 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:25:06,728 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:25:06,731 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:25:06,751 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2021-11-25 20:25:06,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:25:06,969 INFO L263 TraceCheckSpWp]: Trace formula consists of 354 conjuncts, 58 conjunts are in the unsatisfiable core [2021-11-25 20:25:06,972 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:25:06,982 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 20:25:07,030 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-25 20:25:07,030 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-11-25 20:25:07,064 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:25:07,108 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-11-25 20:25:07,109 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:25:07,132 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-25 20:25:07,133 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 26 [2021-11-25 20:25:07,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:07,253 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 21 [2021-11-25 20:25:07,363 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-25 20:25:07,364 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 35 [2021-11-25 20:25:07,474 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 13 [2021-11-25 20:25:07,480 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 5 proven. 14 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-25 20:25:07,481 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 20:25:07,578 INFO L354 Elim1Store]: treesize reduction 5, result has 70.6 percent of original size [2021-11-25 20:25:07,579 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 20 [2021-11-25 20:25:07,583 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2007 (Array Int Int))) (= (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_update_at_~head#1.base| v_ArrVal_2007) |c_ULTIMATE.start_main_~s~0#1.base|) (+ |c_ULTIMATE.start_main_~s~0#1.offset| 4)) |c_ULTIMATE.start_dll_update_at_~head#1.base|)) is different from false [2021-11-25 20:25:07,592 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2007 (Array Int Int))) (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_update_at_~head#1.base|) (+ |c_ULTIMATE.start_dll_update_at_~head#1.offset| 4)))) (= (select (select (store |c_#memory_$Pointer$.base| .cse0 v_ArrVal_2007) |c_ULTIMATE.start_main_~s~0#1.base|) (+ |c_ULTIMATE.start_main_~s~0#1.offset| 4)) .cse0))) is different from false [2021-11-25 20:25:07,602 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2007 (Array Int Int))) (let ((.cse1 (+ |c_ULTIMATE.start_main_~s~0#1.offset| 4))) (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~s~0#1.base|) .cse1))) (= .cse0 (select (select (store |c_#memory_$Pointer$.base| .cse0 v_ArrVal_2007) |c_ULTIMATE.start_main_~s~0#1.base|) .cse1))))) is different from false [2021-11-25 20:25:07,613 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2007 (Array Int Int)) (v_ArrVal_2005 Int)) (let ((.cse0 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_update_at_~head#1.base| (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_update_at_~head#1.base|) |c_ULTIMATE.start_dll_update_at_~head#1.offset| v_ArrVal_2005))) (.cse2 (+ |c_ULTIMATE.start_main_~s~0#1.offset| 4))) (let ((.cse1 (select (select .cse0 |c_ULTIMATE.start_main_~s~0#1.base|) .cse2))) (= (select (select (store .cse0 .cse1 v_ArrVal_2007) |c_ULTIMATE.start_main_~s~0#1.base|) .cse2) .cse1)))) is different from false [2021-11-25 20:25:07,631 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_dll_update_at_~head#1.offset_87| Int) (v_ArrVal_2007 (Array Int Int)) (v_ArrVal_2005 Int)) (or (let ((.cse1 (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~s~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_87| v_ArrVal_2005)) (.cse2 (+ |c_ULTIMATE.start_main_~s~0#1.offset| 4))) (let ((.cse0 (select .cse1 .cse2))) (= .cse0 (select (select (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~s~0#1.base| .cse1) .cse0 v_ArrVal_2007) |c_ULTIMATE.start_main_~s~0#1.base|) .cse2)))) (< |c_ULTIMATE.start_main_~s~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_87|))) is different from false [2021-11-25 20:25:07,644 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_dll_update_at_~head#1.offset_87| Int) (v_ArrVal_2007 (Array Int Int)) (v_ArrVal_2005 Int)) (or (let ((.cse0 (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_87| v_ArrVal_2005)) (.cse2 (+ |c_ULTIMATE.start_dll_create_~head~0#1.offset| 4))) (let ((.cse1 (select .cse0 .cse2))) (= (select (select (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base| .cse0) .cse1 v_ArrVal_2007) |c_ULTIMATE.start_dll_create_~head~0#1.base|) .cse2) .cse1))) (< |c_ULTIMATE.start_dll_create_~head~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_87|))) is different from false [2021-11-25 20:25:07,657 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_dll_update_at_~head#1.offset_87| Int) (v_ArrVal_2007 (Array Int Int)) (v_ArrVal_2005 Int)) (or (let ((.cse0 (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_87| v_ArrVal_2005)) (.cse2 (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 4))) (let ((.cse1 (select .cse0 .cse2))) (= (select (select (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| .cse0) .cse1 v_ArrVal_2007) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) .cse2) .cse1))) (< |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_87|))) is different from false [2021-11-25 20:25:07,670 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_dll_update_at_~head#1.offset_87| Int) (v_ArrVal_2007 (Array Int Int)) (v_ArrVal_2004 (Array Int Int)) (v_ArrVal_2005 Int)) (or (let ((.cse1 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_2004))) (let ((.cse2 (store (select .cse1 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_87| v_ArrVal_2005)) (.cse3 (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 4))) (let ((.cse0 (select .cse2 .cse3))) (= .cse0 (select (select (store (store .cse1 |c_ULTIMATE.start_dll_create_~new_head~0#1.base| .cse2) .cse0 v_ArrVal_2007) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) .cse3))))) (< |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_87|))) is different from false [2021-11-25 20:25:07,695 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_dll_update_at_~head#1.offset_87| Int) (v_ArrVal_2007 (Array Int Int)) (v_ArrVal_2003 Int) (v_ArrVal_2004 (Array Int Int)) (v_ArrVal_2005 Int)) (or (let ((.cse1 (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 8) v_ArrVal_2003)) |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_2004))) (let ((.cse2 (store (select .cse1 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_87| v_ArrVal_2005)) (.cse3 (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 4))) (let ((.cse0 (select .cse2 .cse3))) (= .cse0 (select (select (store (store .cse1 |c_ULTIMATE.start_dll_create_~new_head~0#1.base| .cse2) .cse0 v_ArrVal_2007) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) .cse3))))) (< |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_87|))) is different from false [2021-11-25 20:25:07,703 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:25:07,708 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:25:07,708 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 110 treesize of output 71 [2021-11-25 20:25:07,724 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 100 treesize of output 92 [2021-11-25 20:25:07,728 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:25:07,731 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 16 [2021-11-25 20:25:07,735 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:25:07,737 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 22 [2021-11-25 20:25:07,742 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:25:07,824 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 1 trivial. 11 not checked. [2021-11-25 20:25:07,824 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1997538055] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 20:25:07,824 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1489466065] [2021-11-25 20:25:07,826 INFO L159 IcfgInterpreter]: Started Sifa with 19 locations of interest [2021-11-25 20:25:07,826 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 20:25:07,827 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 20:25:07,827 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 20:25:07,827 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 20:25:07,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:07,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:07,860 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2021-11-25 20:25:07,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:07,896 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2021-11-25 20:25:07,910 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:25:07,923 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:25:07,942 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:25:07,952 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:25:07,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:07,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:07,967 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 31 [2021-11-25 20:25:08,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:08,010 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:25:08,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:08,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:08,022 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 31 [2021-11-25 20:25:08,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:08,038 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:25:08,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:08,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:08,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:08,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:08,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:08,118 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 30 [2021-11-25 20:25:08,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:08,164 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2021-11-25 20:25:08,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:08,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:08,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:08,179 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2021-11-25 20:25:08,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:08,200 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2021-11-25 20:25:08,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:08,234 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2021-11-25 20:25:08,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:08,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:08,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:08,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:08,251 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-25 20:25:08,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:08,267 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2021-11-25 20:25:08,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:08,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:08,303 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 42 [2021-11-25 20:25:08,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:08,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:08,323 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 42 [2021-11-25 20:25:08,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:08,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:08,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:08,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:08,349 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-25 20:25:08,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:08,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:08,407 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:25:08,408 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 47 [2021-11-25 20:25:08,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:08,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:08,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:08,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:08,427 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-25 20:25:08,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:08,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:08,447 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:25:08,447 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 47 [2021-11-25 20:25:08,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:08,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:08,723 INFO L354 Elim1Store]: treesize reduction 34, result has 41.4 percent of original size [2021-11-25 20:25:08,724 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 29 treesize of output 43 [2021-11-25 20:25:08,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:08,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:08,790 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-25 20:25:08,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:08,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:08,807 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-25 20:25:08,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:08,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:08,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:08,820 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2021-11-25 20:25:08,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:08,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:08,848 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2021-11-25 20:25:08,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:08,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:08,860 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2021-11-25 20:25:08,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:08,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:08,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:08,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:08,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:08,884 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-25 20:25:08,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:08,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:08,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:08,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:08,928 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-25 20:25:08,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:08,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:08,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:08,950 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2021-11-25 20:25:08,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:08,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:08,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:08,965 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2021-11-25 20:25:09,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:09,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:09,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:09,016 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 49 [2021-11-25 20:25:09,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:09,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:09,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:09,032 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 49 [2021-11-25 20:25:09,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:09,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:09,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:09,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:09,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:09,051 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-25 20:25:09,089 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-25 20:25:09,095 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 20:25:09,115 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:25:09,121 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:25:09,127 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:25:09,142 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:25:09,148 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:25:09,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:09,156 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:25:09,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:09,178 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:25:09,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:09,186 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:25:09,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:09,196 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:25:09,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:09,219 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:25:09,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:09,228 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:25:09,239 INFO L354 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2021-11-25 20:25:09,240 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 38 [2021-11-25 20:25:09,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:09,252 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:25:09,260 INFO L354 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2021-11-25 20:25:09,261 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 34 [2021-11-25 20:25:09,318 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 20:25:09,327 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-25 20:25:09,343 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:25:09,351 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:25:09,357 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:25:09,372 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:25:09,380 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:25:09,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:09,390 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:25:09,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:09,406 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:25:09,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:09,415 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:25:09,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:09,447 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:25:09,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:09,469 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:25:09,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:09,477 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:25:09,487 INFO L354 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2021-11-25 20:25:09,487 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 38 [2021-11-25 20:25:09,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:09,499 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:25:09,508 INFO L354 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2021-11-25 20:25:09,508 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 34 [2021-11-25 20:25:09,649 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:25:09,658 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:25:09,671 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:25:09,748 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:25:09,758 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:25:09,770 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:25:09,894 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:25:09,900 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:25:09,908 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:25:10,916 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 20:25:10,923 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-25 20:25:10,947 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:25:10,954 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:25:10,961 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:25:11,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:11,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:11,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:11,052 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:25:11,059 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 20:25:11,060 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 198 treesize of output 184 [2021-11-25 20:25:11,093 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:25:11,107 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:25:11,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:11,174 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:25:11,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:11,185 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:25:11,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:11,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:11,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:11,202 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:25:11,210 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 20:25:11,210 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 198 treesize of output 184 [2021-11-25 20:25:11,257 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-25 20:25:14,091 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '7061#(and (<= 0 |ULTIMATE.start_main_~s~0#1.offset|) (<= |ULTIMATE.start_dll_get_data_at_#in~head#1.offset| 0) (<= 1 |ULTIMATE.start_dll_create_~data#1|) (<= 2 |ULTIMATE.start_dll_create_#in~len#1|) (<= |ULTIMATE.start_dll_create_#res#1.offset| 0) (<= |#NULL.offset| 0) (<= |ULTIMATE.start_dll_get_data_at_~index#1| 0) (<= |ULTIMATE.start_dll_create_~data#1| 1) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= 0 (+ |ULTIMATE.start_dll_create_~len#1| 1)) (= |ULTIMATE.start_main_~data~0#1| 1) (<= 0 |ULTIMATE.start_dll_get_data_at_#in~head#1.offset|) (<= |ULTIMATE.start_dll_create_#in~len#1| 2) (<= 0 |ULTIMATE.start_dll_get_data_at_#in~index#1|) (not (= 1 (select |#valid| |ULTIMATE.start_dll_get_data_at_~head#1.base|))) (<= |ULTIMATE.start_dll_create_~len#1| 0) (<= 1 |ULTIMATE.start_dll_create_#in~data#1|) (= |ULTIMATE.start_main_~len~0#1| 2) (<= |ULTIMATE.start_dll_create_#in~data#1| 1) (<= |ULTIMATE.start_dll_create_~head~0#1.offset| 0) (<= 0 |ULTIMATE.start_dll_create_~head~0#1.offset|) (<= 2 |ULTIMATE.start_main_~expected~0#1|) (<= 0 |#NULL.offset|) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~s~0#1.offset| 0) (<= 0 |ULTIMATE.start_dll_create_#res#1.offset|) (= |#NULL.base| 0))' at error location [2021-11-25 20:25:14,092 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-25 20:25:14,092 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-25 20:25:14,092 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 14, 16] total 39 [2021-11-25 20:25:14,092 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876496430] [2021-11-25 20:25:14,092 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-25 20:25:14,092 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2021-11-25 20:25:14,092 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:25:14,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2021-11-25 20:25:14,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=209, Invalid=1980, Unknown=9, NotChecked=882, Total=3080 [2021-11-25 20:25:14,094 INFO L87 Difference]: Start difference. First operand 55 states and 58 transitions. Second operand has 40 states, 39 states have (on average 2.4871794871794872) internal successors, (97), 40 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:25:14,228 WARN L838 $PredicateComparison]: unable to prove that (and (= |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 0) (= |c_ULTIMATE.start_dll_create_~head~0#1.base| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 4))) (not (= |c_ULTIMATE.start_dll_create_~head~0#1.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|)) (= (select |c_#valid| |c_ULTIMATE.start_dll_create_~head~0#1.base|) 1) (= (select |c_#valid| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) 1) (forall ((|v_ULTIMATE.start_dll_update_at_~head#1.offset_87| Int) (v_ArrVal_2007 (Array Int Int)) (v_ArrVal_2004 (Array Int Int)) (v_ArrVal_2005 Int)) (or (let ((.cse1 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_2004))) (let ((.cse2 (store (select .cse1 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_87| v_ArrVal_2005)) (.cse3 (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 4))) (let ((.cse0 (select .cse2 .cse3))) (= .cse0 (select (select (store (store .cse1 |c_ULTIMATE.start_dll_create_~new_head~0#1.base| .cse2) .cse0 v_ArrVal_2007) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) .cse3))))) (< |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_87|)))) is different from false [2021-11-25 20:25:14,230 WARN L838 $PredicateComparison]: unable to prove that (and (= |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 0) (= |c_ULTIMATE.start_dll_create_~head~0#1.base| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 4))) (not (= |c_ULTIMATE.start_dll_create_~head~0#1.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|)) (forall ((|v_ULTIMATE.start_dll_update_at_~head#1.offset_87| Int) (v_ArrVal_2007 (Array Int Int)) (v_ArrVal_2004 (Array Int Int)) (v_ArrVal_2005 Int)) (or (let ((.cse1 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_2004))) (let ((.cse2 (store (select .cse1 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_87| v_ArrVal_2005)) (.cse3 (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 4))) (let ((.cse0 (select .cse2 .cse3))) (= .cse0 (select (select (store (store .cse1 |c_ULTIMATE.start_dll_create_~new_head~0#1.base| .cse2) .cse0 v_ArrVal_2007) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) .cse3))))) (< |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_87|)))) is different from false [2021-11-25 20:25:14,233 WARN L838 $PredicateComparison]: unable to prove that (and (= |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 0) (not (= (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 4)) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|)) (forall ((|v_ULTIMATE.start_dll_update_at_~head#1.offset_87| Int) (v_ArrVal_2007 (Array Int Int)) (v_ArrVal_2005 Int)) (or (let ((.cse0 (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_87| v_ArrVal_2005)) (.cse2 (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 4))) (let ((.cse1 (select .cse0 .cse2))) (= (select (select (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| .cse0) .cse1 v_ArrVal_2007) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) .cse2) .cse1))) (< |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_87|)))) is different from false [2021-11-25 20:25:14,236 WARN L838 $PredicateComparison]: unable to prove that (and (not (= |c_ULTIMATE.start_dll_create_~head~0#1.base| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base|) 4))) (forall ((|v_ULTIMATE.start_dll_update_at_~head#1.offset_87| Int) (v_ArrVal_2007 (Array Int Int)) (v_ArrVal_2005 Int)) (or (let ((.cse0 (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_87| v_ArrVal_2005)) (.cse2 (+ |c_ULTIMATE.start_dll_create_~head~0#1.offset| 4))) (let ((.cse1 (select .cse0 .cse2))) (= (select (select (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base| .cse0) .cse1 v_ArrVal_2007) |c_ULTIMATE.start_dll_create_~head~0#1.base|) .cse2) .cse1))) (< |c_ULTIMATE.start_dll_create_~head~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_87|))) (= |c_ULTIMATE.start_dll_create_~head~0#1.offset| 0)) is different from false [2021-11-25 20:25:14,238 WARN L838 $PredicateComparison]: unable to prove that (and (not (= |c_ULTIMATE.start_main_~s~0#1.base| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~s~0#1.base|) 4))) (forall ((|v_ULTIMATE.start_dll_update_at_~head#1.offset_87| Int) (v_ArrVal_2007 (Array Int Int)) (v_ArrVal_2005 Int)) (or (let ((.cse1 (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~s~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_87| v_ArrVal_2005)) (.cse2 (+ |c_ULTIMATE.start_main_~s~0#1.offset| 4))) (let ((.cse0 (select .cse1 .cse2))) (= .cse0 (select (select (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~s~0#1.base| .cse1) .cse0 v_ArrVal_2007) |c_ULTIMATE.start_main_~s~0#1.base|) .cse2)))) (< |c_ULTIMATE.start_main_~s~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_87|))) (= |c_ULTIMATE.start_main_~s~0#1.offset| 0)) is different from false [2021-11-25 20:25:14,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:25:14,649 INFO L93 Difference]: Finished difference Result 76 states and 77 transitions. [2021-11-25 20:25:14,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-25 20:25:14,649 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 39 states have (on average 2.4871794871794872) internal successors, (97), 40 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2021-11-25 20:25:14,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:25:14,650 INFO L225 Difference]: With dead ends: 76 [2021-11-25 20:25:14,650 INFO L226 Difference]: Without dead ends: 76 [2021-11-25 20:25:14,652 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 65 SyntacticMatches, 5 SemanticMatches, 67 ConstructedPredicates, 14 IntricatePredicates, 0 DeprecatedPredicates, 1070 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=311, Invalid=2701, Unknown=14, NotChecked=1666, Total=4692 [2021-11-25 20:25:14,652 INFO L933 BasicCegarLoop]: 13 mSDtfsCounter, 308 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 438 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 308 SdHoareTripleChecker+Valid, 179 SdHoareTripleChecker+Invalid, 951 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 438 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 481 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-25 20:25:14,653 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [308 Valid, 179 Invalid, 951 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 438 Invalid, 0 Unknown, 481 Unchecked, 0.2s Time] [2021-11-25 20:25:14,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2021-11-25 20:25:14,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 54. [2021-11-25 20:25:14,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 47 states have (on average 1.2127659574468086) internal successors, (57), 53 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:25:14,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 57 transitions. [2021-11-25 20:25:14,655 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 57 transitions. Word has length 35 [2021-11-25 20:25:14,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:25:14,656 INFO L470 AbstractCegarLoop]: Abstraction has 54 states and 57 transitions. [2021-11-25 20:25:14,656 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 39 states have (on average 2.4871794871794872) internal successors, (97), 40 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:25:14,656 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 57 transitions. [2021-11-25 20:25:14,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-11-25 20:25:14,656 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:25:14,657 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:25:14,691 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2021-11-25 20:25:14,875 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:25:14,875 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr15REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 19 more)] === [2021-11-25 20:25:14,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:25:14,875 INFO L85 PathProgramCache]: Analyzing trace with hash -603883123, now seen corresponding path program 1 times [2021-11-25 20:25:14,876 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:25:14,876 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749773238] [2021-11-25 20:25:14,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:25:14,876 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:25:14,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:25:15,305 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 2 proven. 17 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-25 20:25:15,306 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:25:15,306 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [749773238] [2021-11-25 20:25:15,306 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [749773238] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 20:25:15,306 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [497324621] [2021-11-25 20:25:15,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:25:15,306 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:25:15,306 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:25:15,307 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:25:15,308 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2021-11-25 20:25:15,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:25:15,471 INFO L263 TraceCheckSpWp]: Trace formula consists of 354 conjuncts, 65 conjunts are in the unsatisfiable core [2021-11-25 20:25:15,490 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:25:15,494 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 20:25:15,535 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-25 20:25:15,536 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-11-25 20:25:15,571 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:25:15,609 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-11-25 20:25:15,609 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:25:15,628 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-25 20:25:15,628 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 26 [2021-11-25 20:25:15,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:15,744 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 21 [2021-11-25 20:25:15,850 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-25 20:25:15,851 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 54 treesize of output 53 [2021-11-25 20:25:15,854 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 41 [2021-11-25 20:25:15,990 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 21 [2021-11-25 20:25:15,992 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 14 [2021-11-25 20:25:16,020 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 5 proven. 14 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-25 20:25:16,020 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 20:25:16,121 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:25:16,122 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 46 treesize of output 50 [2021-11-25 20:25:16,229 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:25:16,229 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 123 treesize of output 108 [2021-11-25 20:25:16,232 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 89 treesize of output 85 [2021-11-25 20:25:16,236 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 85 treesize of output 81 [2021-11-25 20:25:16,799 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_dll_update_at_~head#1.offset_95| Int) (v_ArrVal_2132 Int)) (or (not (= (select (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~s~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_95| v_ArrVal_2132) (+ |c_ULTIMATE.start_main_~s~0#1.offset| 4)) |c_ULTIMATE.start_main_~s~0#1.base|)) (< |c_ULTIMATE.start_main_~s~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_95|))) is different from false [2021-11-25 20:25:17,241 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_dll_update_at_~head#1.offset_95| Int) (v_ArrVal_2132 Int)) (or (< |c_ULTIMATE.start_dll_create_~head~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_95|) (not (= |c_ULTIMATE.start_dll_create_~head~0#1.base| (select (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_95| v_ArrVal_2132) (+ |c_ULTIMATE.start_dll_create_~head~0#1.offset| 4)))))) is different from false [2021-11-25 20:25:17,682 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_dll_update_at_~head#1.offset_95| Int) (v_ArrVal_2132 Int)) (or (< |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_95|) (not (= |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (select (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_95| v_ArrVal_2132) (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 4)))))) is different from false [2021-11-25 20:25:17,696 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_dll_update_at_~head#1.offset_95| Int) (v_ArrVal_2129 (Array Int Int)) (v_ArrVal_2132 Int)) (or (not (= |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (select (store (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_2129) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_95| v_ArrVal_2132) (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 4)))) (< |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_95|))) is different from false [2021-11-25 20:25:17,722 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_dll_update_at_~head#1.offset_95| Int) (v_ArrVal_2129 (Array Int Int)) (v_ArrVal_2132 Int) (v_ArrVal_2127 Int)) (or (< |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_95|) (not (= |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (select (store (select (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 8) v_ArrVal_2127)) |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_2129) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_95| v_ArrVal_2132) (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 4)))))) is different from false [2021-11-25 20:25:17,730 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:25:17,736 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:25:17,736 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 31 treesize of output 37 [2021-11-25 20:25:17,740 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 41 [2021-11-25 20:25:17,743 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:25:17,745 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 25 [2021-11-25 20:25:17,747 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:25:17,748 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 23 [2021-11-25 20:25:17,820 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 3 proven. 11 refuted. 0 times theorem prover too weak. 1 trivial. 6 not checked. [2021-11-25 20:25:17,820 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [497324621] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 20:25:17,820 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1814015672] [2021-11-25 20:25:17,822 INFO L159 IcfgInterpreter]: Started Sifa with 19 locations of interest [2021-11-25 20:25:17,822 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 20:25:17,822 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 20:25:17,822 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 20:25:17,823 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 20:25:17,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:17,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:17,845 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2021-11-25 20:25:17,870 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:25:17,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:17,880 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2021-11-25 20:25:17,886 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:25:17,903 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:25:17,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:17,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:17,910 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 31 [2021-11-25 20:25:17,916 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:25:17,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:17,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:17,935 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 31 [2021-11-25 20:25:17,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:17,942 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:25:17,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:17,950 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:25:17,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:17,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:17,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:17,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:17,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:17,997 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 30 [2021-11-25 20:25:18,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:18,050 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2021-11-25 20:25:18,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:18,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:18,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:18,059 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2021-11-25 20:25:18,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:18,073 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2021-11-25 20:25:18,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:18,120 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2021-11-25 20:25:18,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:18,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:18,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:18,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:18,132 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-25 20:25:18,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:18,141 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2021-11-25 20:25:18,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:18,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:18,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:18,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:18,167 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-25 20:25:18,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:18,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:18,179 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 42 [2021-11-25 20:25:18,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:18,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:18,189 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 42 [2021-11-25 20:25:18,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:18,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:18,232 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:25:18,233 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 47 [2021-11-25 20:25:18,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:18,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:18,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:18,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:18,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:18,248 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-25 20:25:18,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:18,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:18,261 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:25:18,262 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 47 [2021-11-25 20:25:18,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:18,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:18,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:18,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:18,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:18,411 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 35 [2021-11-25 20:25:18,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:18,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:18,449 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-25 20:25:18,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:18,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:18,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:18,459 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2021-11-25 20:25:18,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:18,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:18,473 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-25 20:25:18,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:18,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:18,503 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2021-11-25 20:25:18,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:18,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:18,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:18,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:18,522 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-25 20:25:18,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:18,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:18,534 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2021-11-25 20:25:18,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:18,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:18,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:18,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:18,561 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-25 20:25:18,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:18,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:18,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:18,571 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2021-11-25 20:25:18,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:18,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:18,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:18,586 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2021-11-25 20:25:18,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:18,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:18,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:18,621 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 49 [2021-11-25 20:25:18,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:18,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:18,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:18,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:18,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:18,634 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-25 20:25:18,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:18,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:18,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:18,647 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 49 [2021-11-25 20:25:18,835 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:25:18,842 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:25:18,851 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:25:18,932 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:25:18,953 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:25:18,969 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:25:19,074 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:25:19,079 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:25:19,085 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:25:19,980 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-25 20:25:19,985 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 20:25:20,013 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:25:20,018 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:25:20,027 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:25:20,050 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:25:20,056 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:25:20,065 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:25:20,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:20,084 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:25:20,090 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:25:20,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:20,097 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:25:20,113 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-25 20:25:23,143 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '7481#(and (<= 0 |ULTIMATE.start_main_~s~0#1.offset|) (<= |ULTIMATE.start_dll_get_data_at_#in~head#1.offset| 0) (<= 1 |ULTIMATE.start_dll_create_~data#1|) (<= 2 |ULTIMATE.start_dll_create_#in~len#1|) (<= |ULTIMATE.start_dll_create_#res#1.offset| 0) (or (< (select |#length| |ULTIMATE.start_dll_get_data_at_~head#1.base|) (+ |ULTIMATE.start_dll_get_data_at_~head#1.offset| 4)) (< |ULTIMATE.start_dll_get_data_at_~head#1.offset| 0)) (<= |ULTIMATE.start_dll_get_data_at_~index#1| 0) (<= |ULTIMATE.start_dll_create_~data#1| 1) (<= 0 |ULTIMATE.start_main_~i~0#1|) (= |ULTIMATE.start_main_~data~0#1| 1) (<= 0 |ULTIMATE.start_dll_get_data_at_#in~head#1.offset|) (<= 0 |ULTIMATE.start_dll_create_~len#1|) (<= |ULTIMATE.start_dll_create_#in~len#1| 2) (<= 0 |ULTIMATE.start_dll_get_data_at_#in~index#1|) (<= |ULTIMATE.start_dll_create_~len#1| 0) (<= 1 |ULTIMATE.start_dll_create_#in~data#1|) (= |ULTIMATE.start_main_~len~0#1| 2) (= |#NULL.offset| 0) (<= |ULTIMATE.start_dll_create_#in~data#1| 1) (<= |ULTIMATE.start_dll_create_~head~0#1.offset| 0) (<= 0 |ULTIMATE.start_dll_create_~head~0#1.offset|) (<= 2 |ULTIMATE.start_main_~expected~0#1|) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~s~0#1.offset| 0) (<= 0 |ULTIMATE.start_dll_create_#res#1.offset|) (= |#NULL.base| 0))' at error location [2021-11-25 20:25:23,143 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-25 20:25:23,143 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-25 20:25:23,143 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 14, 16] total 39 [2021-11-25 20:25:23,144 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721868732] [2021-11-25 20:25:23,144 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-25 20:25:23,145 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2021-11-25 20:25:23,146 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:25:23,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2021-11-25 20:25:23,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=209, Invalid=2458, Unknown=5, NotChecked=520, Total=3192 [2021-11-25 20:25:23,147 INFO L87 Difference]: Start difference. First operand 54 states and 57 transitions. Second operand has 40 states, 39 states have (on average 2.4871794871794872) internal successors, (97), 40 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:25:23,862 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 4))) (let ((.cse1 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) .cse0))) (and (= |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 0) (= (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) .cse0) 0) (= |c_ULTIMATE.start_dll_create_~head~0#1.base| .cse1) (= (select |c_#valid| |c_ULTIMATE.start_dll_create_~head~0#1.base|) 1) (= (select |c_#valid| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) 1) (not (= .cse1 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|)) (= (select |c_#length| |c_ULTIMATE.start_dll_create_~head~0#1.base|) 12) (= (select |c_#length| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) 12) (forall ((|v_ULTIMATE.start_dll_update_at_~head#1.offset_95| Int) (v_ArrVal_2132 Int)) (or (< |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_95|) (not (= |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (select (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_95| v_ArrVal_2132) (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 4))))))))) is different from false [2021-11-25 20:25:24,317 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base|) 4))) (and (= (select |c_#length| .cse0) 12) (forall ((|v_ULTIMATE.start_dll_update_at_~head#1.offset_95| Int) (v_ArrVal_2132 Int)) (or (< |c_ULTIMATE.start_dll_create_~head~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_95|) (not (= |c_ULTIMATE.start_dll_create_~head~0#1.base| (select (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_95| v_ArrVal_2132) (+ |c_ULTIMATE.start_dll_create_~head~0#1.offset| 4)))))) (not (= |c_ULTIMATE.start_dll_create_~head~0#1.base| .cse0)) (= (select |c_#valid| |c_ULTIMATE.start_dll_create_~head~0#1.base|) 1) (= (select |c_#length| |c_ULTIMATE.start_dll_create_~head~0#1.base|) 12) (= |c_ULTIMATE.start_dll_create_~head~0#1.offset| 0) (= (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~head~0#1.base|) 4) 0))) is different from false [2021-11-25 20:25:24,765 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~s~0#1.base|) 4))) (and (not (= |c_ULTIMATE.start_main_~s~0#1.base| .cse0)) (= (select |c_#length| .cse0) 12) (= 0 (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~s~0#1.base|) 4)) (forall ((|v_ULTIMATE.start_dll_update_at_~head#1.offset_95| Int) (v_ArrVal_2132 Int)) (or (not (= (select (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~s~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_95| v_ArrVal_2132) (+ |c_ULTIMATE.start_main_~s~0#1.offset| 4)) |c_ULTIMATE.start_main_~s~0#1.base|)) (< |c_ULTIMATE.start_main_~s~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_95|))) (= |c_ULTIMATE.start_main_~s~0#1.offset| 0))) is different from false [2021-11-25 20:25:25,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:25:25,320 INFO L93 Difference]: Finished difference Result 70 states and 75 transitions. [2021-11-25 20:25:25,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-25 20:25:25,321 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 39 states have (on average 2.4871794871794872) internal successors, (97), 40 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2021-11-25 20:25:25,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:25:25,321 INFO L225 Difference]: With dead ends: 70 [2021-11-25 20:25:25,321 INFO L226 Difference]: Without dead ends: 70 [2021-11-25 20:25:25,323 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 68 SyntacticMatches, 6 SemanticMatches, 68 ConstructedPredicates, 8 IntricatePredicates, 0 DeprecatedPredicates, 1208 ImplicationChecksByTransitivity, 6.9s TimeCoverageRelationStatistics Valid=338, Invalid=3468, Unknown=8, NotChecked=1016, Total=4830 [2021-11-25 20:25:25,324 INFO L933 BasicCegarLoop]: 24 mSDtfsCounter, 246 mSDsluCounter, 476 mSDsCounter, 0 mSdLazyCounter, 581 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 246 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 959 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 581 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 356 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-25 20:25:25,324 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [246 Valid, 366 Invalid, 959 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 581 Invalid, 0 Unknown, 356 Unchecked, 0.3s Time] [2021-11-25 20:25:25,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2021-11-25 20:25:25,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 52. [2021-11-25 20:25:25,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 46 states have (on average 1.1956521739130435) internal successors, (55), 51 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:25:25,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 55 transitions. [2021-11-25 20:25:25,326 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 55 transitions. Word has length 35 [2021-11-25 20:25:25,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:25:25,327 INFO L470 AbstractCegarLoop]: Abstraction has 52 states and 55 transitions. [2021-11-25 20:25:25,327 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 39 states have (on average 2.4871794871794872) internal successors, (97), 40 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:25:25,327 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 55 transitions. [2021-11-25 20:25:25,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-11-25 20:25:25,328 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:25:25,328 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:25:25,365 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2021-11-25 20:25:25,551 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2021-11-25 20:25:25,551 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 19 more)] === [2021-11-25 20:25:25,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:25:25,552 INFO L85 PathProgramCache]: Analyzing trace with hash -601804193, now seen corresponding path program 1 times [2021-11-25 20:25:25,552 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:25:25,552 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216811798] [2021-11-25 20:25:25,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:25:25,552 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:25:25,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:25:25,600 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-11-25 20:25:25,600 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:25:25,600 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1216811798] [2021-11-25 20:25:25,600 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1216811798] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 20:25:25,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1096114914] [2021-11-25 20:25:25,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:25:25,601 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:25:25,601 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:25:25,607 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:25:25,623 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2021-11-25 20:25:25,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:25:25,809 INFO L263 TraceCheckSpWp]: Trace formula consists of 354 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-25 20:25:25,810 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:25:25,868 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-11-25 20:25:25,868 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 20:25:25,917 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-11-25 20:25:25,917 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1096114914] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 20:25:25,918 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [916292973] [2021-11-25 20:25:25,919 INFO L159 IcfgInterpreter]: Started Sifa with 19 locations of interest [2021-11-25 20:25:25,919 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 20:25:25,920 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 20:25:25,920 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 20:25:25,920 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 20:25:25,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:25,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:25,951 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2021-11-25 20:25:25,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:25,976 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2021-11-25 20:25:25,983 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:25:25,989 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:25:26,011 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:25:26,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:26,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:26,024 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 31 [2021-11-25 20:25:26,032 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:25:26,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:26,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:26,055 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 31 [2021-11-25 20:25:26,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:26,065 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:25:26,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:26,077 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:25:26,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:26,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:26,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:26,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:26,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:26,126 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 35 [2021-11-25 20:25:26,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:26,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:26,159 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-25 20:25:26,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:26,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:26,171 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-25 20:25:26,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:26,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:26,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:26,181 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2021-11-25 20:25:26,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:26,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:26,237 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2021-11-25 20:25:26,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:26,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:26,246 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2021-11-25 20:25:26,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:26,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:26,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:26,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:26,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:26,261 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-25 20:25:26,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:26,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:26,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:26,283 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2021-11-25 20:25:26,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:26,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:26,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:26,299 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2021-11-25 20:25:26,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:26,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:26,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:26,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:26,313 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-25 20:25:26,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:26,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:26,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:26,350 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 49 [2021-11-25 20:25:26,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:26,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:26,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:26,362 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 49 [2021-11-25 20:25:26,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:26,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:26,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:26,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:26,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:26,379 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-25 20:25:26,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:26,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:26,551 INFO L354 Elim1Store]: treesize reduction 34, result has 41.4 percent of original size [2021-11-25 20:25:26,551 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 29 treesize of output 43 [2021-11-25 20:25:26,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:26,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:26,597 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-25 20:25:26,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:26,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:26,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:26,609 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2021-11-25 20:25:26,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:26,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:26,624 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-25 20:25:26,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:26,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:26,660 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2021-11-25 20:25:26,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:26,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:26,679 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2021-11-25 20:25:26,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:26,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:26,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:26,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:26,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:26,697 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-25 20:25:26,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:26,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:26,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:26,728 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2021-11-25 20:25:26,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:26,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:26,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:26,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:26,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:26,741 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-25 20:25:26,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:26,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:26,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:26,754 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2021-11-25 20:25:26,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:26,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:26,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:26,799 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 49 [2021-11-25 20:25:26,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:26,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:26,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:26,829 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 49 [2021-11-25 20:25:26,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:26,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:26,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:26,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:26,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:26,843 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-25 20:25:26,872 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 20:25:26,876 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-25 20:25:26,890 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:25:26,896 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:25:26,902 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:25:26,911 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:25:26,916 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:25:26,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:26,925 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:25:26,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:26,939 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:25:26,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:26,946 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:25:26,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:26,954 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:25:26,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:26,973 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:25:26,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:26,981 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:25:26,988 INFO L354 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2021-11-25 20:25:26,988 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 34 [2021-11-25 20:25:26,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:26,998 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:25:27,007 INFO L354 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2021-11-25 20:25:27,007 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 38 [2021-11-25 20:25:27,053 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-25 20:25:27,061 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 20:25:27,072 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:25:27,077 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:25:27,082 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:25:27,095 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:25:27,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:27,104 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:25:27,110 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:25:27,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:27,125 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:25:27,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:27,132 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:25:27,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:27,139 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:25:27,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:27,175 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:25:27,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:27,187 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:25:27,198 INFO L354 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2021-11-25 20:25:27,199 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 38 [2021-11-25 20:25:27,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:27,213 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:25:27,223 INFO L354 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2021-11-25 20:25:27,224 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 34 [2021-11-25 20:25:27,343 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:25:27,352 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:25:27,366 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:25:27,460 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:25:27,467 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:25:27,475 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:25:27,609 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:25:27,621 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:25:27,628 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:25:27,786 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-25 20:25:27,793 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 20:25:27,811 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:25:27,816 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:25:27,821 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:25:27,870 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:25:27,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:27,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:27,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:27,880 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:25:27,885 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 20:25:27,885 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 198 treesize of output 184 [2021-11-25 20:25:27,906 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:25:27,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:27,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:27,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:27,939 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:25:27,944 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 20:25:27,944 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 198 treesize of output 184 [2021-11-25 20:25:27,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:27,979 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:25:27,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:27,988 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:25:28,012 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-25 20:25:30,670 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '7865#(and (<= 1 |ULTIMATE.start_dll_create_~data#1|) (= |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_dll_get_data_at_#in~index#1|) (= |ULTIMATE.start_main_~i~0#1| 0) (<= 2 |ULTIMATE.start_dll_create_#in~len#1|) (<= |ULTIMATE.start_dll_create_#res#1.offset| 0) (<= (+ |ULTIMATE.start_dll_get_data_at_~head#1.offset| 4) (select |#length| |ULTIMATE.start_dll_get_data_at_~head#1.base|)) (= |ULTIMATE.start_dll_get_data_at_#in~head#1.base| |ULTIMATE.start_main_~s~0#1.base|) (= (select (select |#memory_int| |ULTIMATE.start_dll_get_data_at_~head#1.base|) |ULTIMATE.start_dll_get_data_at_~head#1.offset|) |ULTIMATE.start_dll_get_data_at_#res#1|) (= |ULTIMATE.start_dll_get_data_at_#in~head#1.base| |ULTIMATE.start_dll_get_data_at_~head#1.base|) (<= 0 (+ |ULTIMATE.start_dll_get_data_at_#res#1| 2147483648)) (= |ULTIMATE.start_dll_get_data_at_#in~head#1.offset| |ULTIMATE.start_dll_get_data_at_~head#1.offset|) (= (+ |ULTIMATE.start_main_~len~0#1| |ULTIMATE.start_main_~i~0#1|) |ULTIMATE.start_main_~expected~0#1|) (<= 0 |ULTIMATE.start_dll_get_data_at_~head#1.offset|) (<= |ULTIMATE.start_dll_get_data_at_#res#1| 2147483647) (<= |ULTIMATE.start_dll_create_~data#1| 1) (= |ULTIMATE.start_dll_get_data_at_~index#1| |ULTIMATE.start_dll_get_data_at_#in~index#1|) (<= 0 (+ |ULTIMATE.start_dll_create_~len#1| 1)) (= |ULTIMATE.start_main_~data~0#1| 1) (<= |ULTIMATE.start_dll_create_#in~len#1| 2) (<= |ULTIMATE.start_dll_create_~len#1| 0) (<= 1 |ULTIMATE.start_dll_create_#in~data#1|) (= |ULTIMATE.start_main_~len~0#1| 2) (= |#NULL.offset| 0) (<= |ULTIMATE.start_dll_create_#in~data#1| 1) (<= |ULTIMATE.start_dll_create_~head~0#1.offset| 0) (<= 0 |ULTIMATE.start_dll_create_~head~0#1.offset|) (= 1 (select |#valid| |ULTIMATE.start_dll_get_data_at_~head#1.base|)) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~s~0#1.offset| 0) (<= 0 |ULTIMATE.start_dll_create_#res#1.offset|) (= |ULTIMATE.start_dll_get_data_at_#in~head#1.offset| |ULTIMATE.start_main_~s~0#1.offset|) (not (= |ULTIMATE.start_main_~expected~0#1| |ULTIMATE.start_dll_get_data_at_#res#1|)) (= |#NULL.base| 0))' at error location [2021-11-25 20:25:30,670 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-25 20:25:30,671 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-25 20:25:30,671 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 6 [2021-11-25 20:25:30,671 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755776926] [2021-11-25 20:25:30,671 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-25 20:25:30,671 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-25 20:25:30,671 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:25:30,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-25 20:25:30,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=359, Unknown=0, NotChecked=0, Total=462 [2021-11-25 20:25:30,672 INFO L87 Difference]: Start difference. First operand 52 states and 55 transitions. Second operand has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 6 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:25:30,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:25:30,714 INFO L93 Difference]: Finished difference Result 52 states and 54 transitions. [2021-11-25 20:25:30,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 20:25:30,715 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 6 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2021-11-25 20:25:30,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:25:30,715 INFO L225 Difference]: With dead ends: 52 [2021-11-25 20:25:30,715 INFO L226 Difference]: Without dead ends: 52 [2021-11-25 20:25:30,715 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 87 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=108, Invalid=398, Unknown=0, NotChecked=0, Total=506 [2021-11-25 20:25:30,716 INFO L933 BasicCegarLoop]: 21 mSDtfsCounter, 46 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-25 20:25:30,716 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [46 Valid, 63 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-25 20:25:30,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2021-11-25 20:25:30,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2021-11-25 20:25:30,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 46 states have (on average 1.173913043478261) internal successors, (54), 51 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:25:30,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 54 transitions. [2021-11-25 20:25:30,717 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 54 transitions. Word has length 35 [2021-11-25 20:25:30,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:25:30,718 INFO L470 AbstractCegarLoop]: Abstraction has 52 states and 54 transitions. [2021-11-25 20:25:30,718 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 6 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:25:30,718 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 54 transitions. [2021-11-25 20:25:30,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-11-25 20:25:30,718 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:25:30,718 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:25:30,739 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2021-11-25 20:25:30,918 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2021-11-25 20:25:30,919 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 19 more)] === [2021-11-25 20:25:30,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:25:30,919 INFO L85 PathProgramCache]: Analyzing trace with hash -511042526, now seen corresponding path program 1 times [2021-11-25 20:25:30,919 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:25:30,919 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974804898] [2021-11-25 20:25:30,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:25:30,920 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:25:30,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:25:31,384 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 4 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:25:31,384 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:25:31,384 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1974804898] [2021-11-25 20:25:31,384 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1974804898] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 20:25:31,384 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1485580634] [2021-11-25 20:25:31,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:25:31,385 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:25:31,385 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:25:31,385 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:25:31,386 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2021-11-25 20:25:31,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:25:31,577 INFO L263 TraceCheckSpWp]: Trace formula consists of 365 conjuncts, 87 conjunts are in the unsatisfiable core [2021-11-25 20:25:31,580 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:25:31,583 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 20:25:31,615 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-25 20:25:31,615 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-11-25 20:25:31,646 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:25:31,680 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-11-25 20:25:31,681 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:25:31,695 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-25 20:25:31,696 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 26 [2021-11-25 20:25:31,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:31,808 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 21 [2021-11-25 20:25:31,937 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-25 20:25:31,937 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 66 treesize of output 63 [2021-11-25 20:25:31,940 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 21 [2021-11-25 20:25:31,942 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 36 [2021-11-25 20:25:32,112 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 21 [2021-11-25 20:25:32,114 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2021-11-25 20:25:32,137 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2021-11-25 20:25:32,160 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:25:32,160 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 20:25:32,370 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 86 treesize of output 64 [2021-11-25 20:25:32,400 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 86 treesize of output 64 [2021-11-25 20:25:32,423 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (+ |c_ULTIMATE.start_main_~len~0#1| 1))) (and (<= |c_ULTIMATE.start_dll_update_at_~data#1| .cse0) (<= .cse0 |c_ULTIMATE.start_dll_update_at_~data#1|) (forall ((v_ArrVal_2378 (Array Int Int))) (= (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_update_at_~head#1.base| v_ArrVal_2378) |c_ULTIMATE.start_main_~s~0#1.base|) (+ |c_ULTIMATE.start_main_~s~0#1.offset| 4)) |c_ULTIMATE.start_dll_update_at_~head#1.offset|)) (forall ((v_ArrVal_2377 (Array Int Int))) (= (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_update_at_~head#1.base| v_ArrVal_2377) |c_ULTIMATE.start_main_~s~0#1.base|) (+ |c_ULTIMATE.start_main_~s~0#1.offset| 4)) |c_ULTIMATE.start_dll_update_at_~head#1.base|)))) is different from false [2021-11-25 20:25:32,454 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:25:32,454 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 47 [2021-11-25 20:25:32,459 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2021-11-25 20:25:34,620 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_dll_update_at_~head#1.offset_107| Int)) (or (< |c_ULTIMATE.start_main_~s~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_107|) (and (= |c_ULTIMATE.start_main_~i~0#1| 0) (forall ((v_ArrVal_2374 Int)) (not (= |c_ULTIMATE.start_main_~s~0#1.base| (select (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~s~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_107| v_ArrVal_2374) (+ |c_ULTIMATE.start_main_~s~0#1.offset| 4)))))))) is different from false [2021-11-25 20:25:36,631 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_dll_update_at_~head#1.offset_107| Int)) (or (forall ((v_ArrVal_2374 Int)) (not (= |c_ULTIMATE.start_dll_create_~head~0#1.base| (select (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_107| v_ArrVal_2374) (+ |c_ULTIMATE.start_dll_create_~head~0#1.offset| 4))))) (< |c_ULTIMATE.start_dll_create_~head~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_107|))) is different from false [2021-11-25 20:25:37,073 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_dll_update_at_~head#1.offset_107| Int) (v_ArrVal_2374 Int)) (or (not (= |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (select (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_107| v_ArrVal_2374) (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 4)))) (< |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_107|))) is different from false [2021-11-25 20:25:37,085 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_dll_update_at_~head#1.offset_107| Int) (v_ArrVal_2374 Int) (v_ArrVal_2373 (Array Int Int))) (or (< |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_107|) (not (= |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (select (store (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_2373) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_107| v_ArrVal_2374) (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 4)))))) is different from false [2021-11-25 20:25:37,104 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2371 Int) (|v_ULTIMATE.start_dll_update_at_~head#1.offset_107| Int) (v_ArrVal_2374 Int) (v_ArrVal_2373 (Array Int Int))) (or (not (= (select (store (select (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 8) v_ArrVal_2371)) |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_2373) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_107| v_ArrVal_2374) (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 4)) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|)) (< |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_107|))) is different from false [2021-11-25 20:25:37,124 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:25:37,129 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:25:37,129 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 31 treesize of output 37 [2021-11-25 20:25:37,133 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 41 [2021-11-25 20:25:37,135 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:25:37,136 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 30 [2021-11-25 20:25:37,139 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:25:37,140 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 4 [2021-11-25 20:25:37,228 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 9 not checked. [2021-11-25 20:25:37,228 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1485580634] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 20:25:37,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [355768178] [2021-11-25 20:25:37,229 INFO L159 IcfgInterpreter]: Started Sifa with 20 locations of interest [2021-11-25 20:25:37,230 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 20:25:37,230 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 20:25:37,230 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 20:25:37,230 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 20:25:37,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:37,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:37,258 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2021-11-25 20:25:37,278 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:25:37,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:37,284 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2021-11-25 20:25:37,295 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:25:37,311 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:25:37,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:37,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:37,319 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 31 [2021-11-25 20:25:37,326 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:25:37,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:37,352 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:25:37,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:37,359 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:25:37,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:37,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:37,373 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 31 [2021-11-25 20:25:37,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:37,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:37,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:37,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:37,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:37,426 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 35 [2021-11-25 20:25:37,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:37,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:37,473 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-25 20:25:37,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:37,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:37,491 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-25 20:25:37,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:37,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:37,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:37,502 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2021-11-25 20:25:37,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:37,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:37,527 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2021-11-25 20:25:37,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:37,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:37,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:37,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:37,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:37,541 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-25 20:25:37,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:37,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:37,555 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2021-11-25 20:25:37,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:37,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:37,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:37,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:37,590 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-25 20:25:37,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:37,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:37,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:37,603 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2021-11-25 20:25:37,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:37,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:37,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:37,631 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2021-11-25 20:25:37,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:37,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:37,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:37,676 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 49 [2021-11-25 20:25:37,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:37,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:37,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:37,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:37,690 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-25 20:25:37,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:37,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:37,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:37,703 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 49 [2021-11-25 20:25:37,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:37,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:37,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:37,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:37,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:37,856 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 35 [2021-11-25 20:25:37,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:37,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:37,891 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-25 20:25:37,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:37,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:37,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:37,901 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2021-11-25 20:25:37,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:37,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:37,914 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-25 20:25:37,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:37,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:37,942 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2021-11-25 20:25:37,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:37,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:37,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:37,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:37,956 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-25 20:25:37,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:37,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:37,967 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2021-11-25 20:25:37,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:37,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:37,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:37,993 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2021-11-25 20:25:38,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:38,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:38,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:38,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:38,008 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-25 20:25:38,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:38,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:38,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:38,020 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2021-11-25 20:25:38,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:38,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:38,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:38,066 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 49 [2021-11-25 20:25:38,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:38,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:38,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:38,078 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 49 [2021-11-25 20:25:38,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:38,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:38,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:38,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:38,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:38,112 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-25 20:25:38,277 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:25:38,286 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:25:38,295 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:25:38,372 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:25:38,379 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:25:38,385 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:25:38,510 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:25:38,516 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:25:38,524 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:25:39,286 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 20:25:39,295 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-25 20:25:39,320 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:25:39,329 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:25:39,334 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:25:39,358 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:25:39,364 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:25:39,375 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:25:39,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:39,393 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:25:39,402 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:25:39,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:39,408 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:25:39,435 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-25 20:25:42,787 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '8250#(and (<= 0 |ULTIMATE.start_main_~s~0#1.offset|) (<= |ULTIMATE.start_dll_get_data_at_#in~head#1.offset| 0) (<= 1 |ULTIMATE.start_dll_create_~data#1|) (<= 2 |ULTIMATE.start_dll_create_#in~len#1|) (<= |ULTIMATE.start_dll_create_#res#1.offset| 0) (<= (+ |ULTIMATE.start_dll_get_data_at_~head#1.offset| 4) (select |#length| |ULTIMATE.start_dll_get_data_at_~head#1.base|)) (= (select (select |#memory_int| |ULTIMATE.start_dll_get_data_at_~head#1.base|) |ULTIMATE.start_dll_get_data_at_~head#1.offset|) |ULTIMATE.start_dll_get_data_at_#res#1|) (<= 0 (+ |ULTIMATE.start_dll_get_data_at_#res#1| 2147483648)) (<= 0 |ULTIMATE.start_dll_get_data_at_~head#1.offset|) (<= |ULTIMATE.start_dll_get_data_at_~index#1| 0) (<= |ULTIMATE.start_dll_get_data_at_#res#1| 2147483647) (<= |ULTIMATE.start_dll_create_~data#1| 1) (= |ULTIMATE.start_main_~data~0#1| 1) (<= 0 |ULTIMATE.start_dll_get_data_at_#in~head#1.offset|) (<= 0 |ULTIMATE.start_dll_create_~len#1|) (<= |ULTIMATE.start_dll_create_#in~len#1| 2) (<= |ULTIMATE.start_dll_create_~len#1| 0) (<= 1 |ULTIMATE.start_dll_create_#in~data#1|) (= |ULTIMATE.start_main_~len~0#1| 2) (= |#NULL.offset| 0) (<= |ULTIMATE.start_dll_create_#in~data#1| 1) (<= |ULTIMATE.start_dll_create_~head~0#1.offset| 0) (<= 0 |ULTIMATE.start_dll_create_~head~0#1.offset|) (= 1 (select |#valid| |ULTIMATE.start_dll_get_data_at_~head#1.base|)) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~s~0#1.offset| 0) (<= 0 |ULTIMATE.start_dll_create_#res#1.offset|) (not (= |ULTIMATE.start_main_~expected~0#1| |ULTIMATE.start_dll_get_data_at_#res#1|)) (= |#NULL.base| 0))' at error location [2021-11-25 20:25:42,788 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-25 20:25:42,788 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-25 20:25:42,788 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 19, 20] total 47 [2021-11-25 20:25:42,788 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609711996] [2021-11-25 20:25:42,788 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-25 20:25:42,788 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2021-11-25 20:25:42,789 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:25:42,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2021-11-25 20:25:42,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=219, Invalid=3105, Unknown=6, NotChecked=702, Total=4032 [2021-11-25 20:25:42,791 INFO L87 Difference]: Start difference. First operand 52 states and 54 transitions. Second operand has 47 states, 47 states have (on average 2.0638297872340425) internal successors, (97), 47 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:25:43,570 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 4)))) (and (= |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 0) (= |c_ULTIMATE.start_dll_create_~head~0#1.base| .cse0) (not (= |c_ULTIMATE.start_dll_create_~head~0#1.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|)) (= (select |c_#valid| |c_ULTIMATE.start_dll_create_~head~0#1.base|) 1) (forall ((|v_ULTIMATE.start_dll_update_at_~head#1.offset_107| Int) (v_ArrVal_2374 Int)) (or (not (= |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (select (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_107| v_ArrVal_2374) (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 4)))) (< |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_107|))) (= (select |c_#valid| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) 1) (not (= .cse0 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|)))) is different from false [2021-11-25 20:25:44,031 WARN L838 $PredicateComparison]: unable to prove that (and (not (= |c_ULTIMATE.start_dll_create_~head~0#1.base| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base|) 4))) (= (select |c_#valid| |c_ULTIMATE.start_dll_create_~head~0#1.base|) 1) (forall ((|v_ULTIMATE.start_dll_update_at_~head#1.offset_107| Int)) (or (forall ((v_ArrVal_2374 Int)) (not (= |c_ULTIMATE.start_dll_create_~head~0#1.base| (select (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_107| v_ArrVal_2374) (+ |c_ULTIMATE.start_dll_create_~head~0#1.offset| 4))))) (< |c_ULTIMATE.start_dll_create_~head~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_107|))) (= |c_ULTIMATE.start_dll_create_~head~0#1.offset| 0)) is different from false [2021-11-25 20:25:44,477 WARN L838 $PredicateComparison]: unable to prove that (and (= |c_ULTIMATE.start_main_~i~0#1| 0) (not (= |c_ULTIMATE.start_main_~s~0#1.base| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~s~0#1.base|) 4))) (forall ((|v_ULTIMATE.start_dll_update_at_~head#1.offset_107| Int)) (or (< |c_ULTIMATE.start_main_~s~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_107|) (and (= |c_ULTIMATE.start_main_~i~0#1| 0) (forall ((v_ArrVal_2374 Int)) (not (= |c_ULTIMATE.start_main_~s~0#1.base| (select (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~s~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_107| v_ArrVal_2374) (+ |c_ULTIMATE.start_main_~s~0#1.offset| 4)))))))) (= |c_ULTIMATE.start_main_~s~0#1.offset| 0)) is different from false [2021-11-25 20:25:45,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:25:45,400 INFO L93 Difference]: Finished difference Result 50 states and 52 transitions. [2021-11-25 20:25:45,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-11-25 20:25:45,400 INFO L78 Accepts]: Start accepts. Automaton has has 47 states, 47 states have (on average 2.0638297872340425) internal successors, (97), 47 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2021-11-25 20:25:45,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:25:45,401 INFO L225 Difference]: With dead ends: 50 [2021-11-25 20:25:45,401 INFO L226 Difference]: Without dead ends: 50 [2021-11-25 20:25:45,402 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 65 SyntacticMatches, 7 SemanticMatches, 79 ConstructedPredicates, 9 IntricatePredicates, 0 DeprecatedPredicates, 1395 ImplicationChecksByTransitivity, 10.9s TimeCoverageRelationStatistics Valid=391, Invalid=4748, Unknown=9, NotChecked=1332, Total=6480 [2021-11-25 20:25:45,402 INFO L933 BasicCegarLoop]: 13 mSDtfsCounter, 153 mSDsluCounter, 341 mSDsCounter, 0 mSdLazyCounter, 647 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 270 SdHoareTripleChecker+Invalid, 935 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 647 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 254 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-25 20:25:45,402 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [153 Valid, 270 Invalid, 935 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 647 Invalid, 0 Unknown, 254 Unchecked, 0.4s Time] [2021-11-25 20:25:45,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2021-11-25 20:25:45,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2021-11-25 20:25:45,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 45 states have (on average 1.1555555555555554) internal successors, (52), 49 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:25:45,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 52 transitions. [2021-11-25 20:25:45,404 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 52 transitions. Word has length 37 [2021-11-25 20:25:45,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:25:45,405 INFO L470 AbstractCegarLoop]: Abstraction has 50 states and 52 transitions. [2021-11-25 20:25:45,405 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 47 states, 47 states have (on average 2.0638297872340425) internal successors, (97), 47 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:25:45,405 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 52 transitions. [2021-11-25 20:25:45,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-25 20:25:45,405 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:25:45,406 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:25:45,435 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2021-11-25 20:25:45,623 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:25:45,623 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr17REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 19 more)] === [2021-11-25 20:25:45,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:25:45,623 INFO L85 PathProgramCache]: Analyzing trace with hash -1484291250, now seen corresponding path program 1 times [2021-11-25 20:25:45,623 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:25:45,624 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683634875] [2021-11-25 20:25:45,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:25:45,624 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:25:45,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:25:45,725 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-11-25 20:25:45,726 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:25:45,726 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1683634875] [2021-11-25 20:25:45,726 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1683634875] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:25:45,726 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:25:45,726 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 20:25:45,726 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873555436] [2021-11-25 20:25:45,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:25:45,728 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-25 20:25:45,728 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:25:45,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-25 20:25:45,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-25 20:25:45,729 INFO L87 Difference]: Start difference. First operand 50 states and 52 transitions. Second operand has 6 states, 5 states have (on average 6.4) internal successors, (32), 6 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:25:45,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:25:45,871 INFO L93 Difference]: Finished difference Result 56 states and 56 transitions. [2021-11-25 20:25:45,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-25 20:25:45,872 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.4) internal successors, (32), 6 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2021-11-25 20:25:45,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:25:45,873 INFO L225 Difference]: With dead ends: 56 [2021-11-25 20:25:45,873 INFO L226 Difference]: Without dead ends: 56 [2021-11-25 20:25:45,873 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-11-25 20:25:45,873 INFO L933 BasicCegarLoop]: 7 mSDtfsCounter, 97 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-25 20:25:45,874 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [97 Valid, 12 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-25 20:25:45,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2021-11-25 20:25:45,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 51. [2021-11-25 20:25:45,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 46 states have (on average 1.1304347826086956) internal successors, (52), 50 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:25:45,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 52 transitions. [2021-11-25 20:25:45,876 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 52 transitions. Word has length 39 [2021-11-25 20:25:45,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:25:45,876 INFO L470 AbstractCegarLoop]: Abstraction has 51 states and 52 transitions. [2021-11-25 20:25:45,876 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.4) internal successors, (32), 6 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:25:45,876 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 52 transitions. [2021-11-25 20:25:45,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-25 20:25:45,877 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:25:45,877 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:25:45,877 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-11-25 20:25:45,877 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 19 more)] === [2021-11-25 20:25:45,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:25:45,877 INFO L85 PathProgramCache]: Analyzing trace with hash -1484289963, now seen corresponding path program 1 times [2021-11-25 20:25:45,877 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:25:45,877 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896952688] [2021-11-25 20:25:45,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:25:45,878 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:25:45,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:25:45,944 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-11-25 20:25:45,945 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:25:45,945 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896952688] [2021-11-25 20:25:45,945 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1896952688] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:25:45,945 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:25:45,946 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-25 20:25:45,946 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794834106] [2021-11-25 20:25:45,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:25:45,946 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-25 20:25:45,946 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:25:45,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-25 20:25:45,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-25 20:25:45,947 INFO L87 Difference]: Start difference. First operand 51 states and 52 transitions. Second operand has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 6 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:25:46,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:25:46,045 INFO L93 Difference]: Finished difference Result 54 states and 54 transitions. [2021-11-25 20:25:46,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-25 20:25:46,046 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 6 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2021-11-25 20:25:46,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:25:46,046 INFO L225 Difference]: With dead ends: 54 [2021-11-25 20:25:46,046 INFO L226 Difference]: Without dead ends: 54 [2021-11-25 20:25:46,047 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-11-25 20:25:46,047 INFO L933 BasicCegarLoop]: 10 mSDtfsCounter, 91 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-25 20:25:46,047 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [91 Valid, 22 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-25 20:25:46,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2021-11-25 20:25:46,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 51. [2021-11-25 20:25:46,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 46 states have (on average 1.108695652173913) internal successors, (51), 50 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:25:46,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 51 transitions. [2021-11-25 20:25:46,049 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 51 transitions. Word has length 39 [2021-11-25 20:25:46,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:25:46,050 INFO L470 AbstractCegarLoop]: Abstraction has 51 states and 51 transitions. [2021-11-25 20:25:46,050 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 6 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:25:46,050 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 51 transitions. [2021-11-25 20:25:46,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-11-25 20:25:46,050 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:25:46,050 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:25:46,050 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-11-25 20:25:46,051 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 19 more)] === [2021-11-25 20:25:46,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:25:46,051 INFO L85 PathProgramCache]: Analyzing trace with hash -474724348, now seen corresponding path program 1 times [2021-11-25 20:25:46,051 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:25:46,051 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871738] [2021-11-25 20:25:46,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:25:46,051 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:25:46,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:25:46,114 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-11-25 20:25:46,115 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:25:46,115 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871738] [2021-11-25 20:25:46,115 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [871738] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:25:46,115 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:25:46,115 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 20:25:46,116 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627151670] [2021-11-25 20:25:46,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:25:46,116 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-25 20:25:46,116 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:25:46,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-25 20:25:46,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-25 20:25:46,117 INFO L87 Difference]: Start difference. First operand 51 states and 51 transitions. Second operand has 6 states, 5 states have (on average 6.8) internal successors, (34), 6 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:25:46,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:25:46,215 INFO L93 Difference]: Finished difference Result 52 states and 52 transitions. [2021-11-25 20:25:46,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-25 20:25:46,215 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.8) internal successors, (34), 6 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2021-11-25 20:25:46,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:25:46,216 INFO L225 Difference]: With dead ends: 52 [2021-11-25 20:25:46,216 INFO L226 Difference]: Without dead ends: 52 [2021-11-25 20:25:46,216 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-11-25 20:25:46,217 INFO L933 BasicCegarLoop]: 7 mSDtfsCounter, 81 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-25 20:25:46,217 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [81 Valid, 12 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-25 20:25:46,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2021-11-25 20:25:46,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2021-11-25 20:25:46,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 47 states have (on average 1.1063829787234043) internal successors, (52), 51 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:25:46,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 52 transitions. [2021-11-25 20:25:46,219 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 52 transitions. Word has length 41 [2021-11-25 20:25:46,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:25:46,219 INFO L470 AbstractCegarLoop]: Abstraction has 52 states and 52 transitions. [2021-11-25 20:25:46,219 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.8) internal successors, (34), 6 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:25:46,219 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 52 transitions. [2021-11-25 20:25:46,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-11-25 20:25:46,220 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:25:46,220 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:25:46,220 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-11-25 20:25:46,221 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr16REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 19 more)] === [2021-11-25 20:25:46,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:25:46,221 INFO L85 PathProgramCache]: Analyzing trace with hash 814425932, now seen corresponding path program 1 times [2021-11-25 20:25:46,221 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:25:46,221 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404029077] [2021-11-25 20:25:46,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:25:46,222 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:25:46,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:25:46,645 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 5 proven. 12 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-25 20:25:46,645 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:25:46,645 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404029077] [2021-11-25 20:25:46,645 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [404029077] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 20:25:46,645 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2105742419] [2021-11-25 20:25:46,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:25:46,646 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:25:46,646 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:25:46,651 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:25:46,661 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2021-11-25 20:25:46,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:25:46,891 INFO L263 TraceCheckSpWp]: Trace formula consists of 398 conjuncts, 67 conjunts are in the unsatisfiable core [2021-11-25 20:25:46,893 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:25:46,897 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 20:25:46,936 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-25 20:25:46,936 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-11-25 20:25:46,954 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:25:46,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:46,966 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:25:46,988 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-25 20:25:46,989 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 35 [2021-11-25 20:25:47,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:47,067 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 24 [2021-11-25 20:25:47,149 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-25 20:25:47,150 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 29 [2021-11-25 20:25:47,245 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:25:47,246 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 23 [2021-11-25 20:25:47,295 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2021-11-25 20:25:47,299 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 2 proven. 15 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-25 20:25:47,299 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 20:25:47,412 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_2681 (Array Int Int))) (= (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_update_at_~head#1.base| v_ArrVal_2681) |c_ULTIMATE.start_main_~s~0#1.base|) 4)) 1)) (forall ((v_ArrVal_2681 (Array Int Int))) (not (= (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_update_at_~head#1.base| v_ArrVal_2681) |c_ULTIMATE.start_main_~s~0#1.base|) 4) |c_ULTIMATE.start_main_~s~0#1.base|)))) is different from false [2021-11-25 20:25:47,424 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_2681 (Array Int Int))) (not (= |c_ULTIMATE.start_main_~s~0#1.base| (select (select (store |c_#memory_$Pointer$.base| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_update_at_~head#1.base|) (+ |c_ULTIMATE.start_dll_update_at_~head#1.offset| 4)) v_ArrVal_2681) |c_ULTIMATE.start_main_~s~0#1.base|) 4)))) (forall ((v_ArrVal_2681 (Array Int Int))) (= (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_update_at_~head#1.base|) (+ |c_ULTIMATE.start_dll_update_at_~head#1.offset| 4)) v_ArrVal_2681) |c_ULTIMATE.start_main_~s~0#1.base|) 4)) 1))) is different from false [2021-11-25 20:25:47,445 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_2681 (Array Int Int))) (= (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~s~0#1.base|) (+ |c_ULTIMATE.start_main_~s~0#1.offset| 4)) v_ArrVal_2681) |c_ULTIMATE.start_main_~s~0#1.base|) 4)) 1)) (forall ((v_ArrVal_2681 (Array Int Int))) (not (= |c_ULTIMATE.start_main_~s~0#1.base| (select (select (store |c_#memory_$Pointer$.base| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~s~0#1.base|) (+ |c_ULTIMATE.start_main_~s~0#1.offset| 4)) v_ArrVal_2681) |c_ULTIMATE.start_main_~s~0#1.base|) 4))))) is different from false [2021-11-25 20:25:47,455 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_2681 (Array Int Int)) (v_ArrVal_2679 Int)) (not (= |c_ULTIMATE.start_main_~s~0#1.base| (select (select (let ((.cse0 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_update_at_~head#1.base| (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_update_at_~head#1.base|) |c_ULTIMATE.start_dll_update_at_~head#1.offset| v_ArrVal_2679)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~s~0#1.base|) (+ |c_ULTIMATE.start_main_~s~0#1.offset| 4)) v_ArrVal_2681)) |c_ULTIMATE.start_main_~s~0#1.base|) 4)))) (forall ((v_ArrVal_2681 (Array Int Int)) (v_ArrVal_2679 Int)) (= (select |c_#valid| (select (select (let ((.cse1 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_update_at_~head#1.base| (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_update_at_~head#1.base|) |c_ULTIMATE.start_dll_update_at_~head#1.offset| v_ArrVal_2679)))) (store .cse1 (select (select .cse1 |c_ULTIMATE.start_main_~s~0#1.base|) (+ |c_ULTIMATE.start_main_~s~0#1.offset| 4)) v_ArrVal_2681)) |c_ULTIMATE.start_main_~s~0#1.base|) 4)) 1))) is different from false [2021-11-25 20:25:47,488 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_dll_update_at_~head#1.offset_115| Int)) (or (and (forall ((v_ArrVal_2681 (Array Int Int)) (v_ArrVal_2679 Int)) (not (= |c_ULTIMATE.start_main_~s~0#1.base| (select (select (let ((.cse0 (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~s~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_115| v_ArrVal_2679))) (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~s~0#1.base| .cse0) (select .cse0 (+ |c_ULTIMATE.start_main_~s~0#1.offset| 4)) v_ArrVal_2681)) |c_ULTIMATE.start_main_~s~0#1.base|) 4)))) (forall ((v_ArrVal_2681 (Array Int Int)) (v_ArrVal_2679 Int)) (= (select |c_#valid| (select (select (let ((.cse1 (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~s~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_115| v_ArrVal_2679))) (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~s~0#1.base| .cse1) (select .cse1 (+ |c_ULTIMATE.start_main_~s~0#1.offset| 4)) v_ArrVal_2681)) |c_ULTIMATE.start_main_~s~0#1.base|) 4)) 1))) (< |c_ULTIMATE.start_main_~s~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_115|))) is different from false [2021-11-25 20:25:47,515 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_dll_update_at_~head#1.offset_115| Int)) (or (and (forall ((v_ArrVal_2681 (Array Int Int)) (v_ArrVal_2679 Int)) (not (= |c_ULTIMATE.start_dll_create_~head~0#1.base| (select (select (let ((.cse0 (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_115| v_ArrVal_2679))) (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base| .cse0) (select .cse0 (+ |c_ULTIMATE.start_dll_create_~head~0#1.offset| 4)) v_ArrVal_2681)) |c_ULTIMATE.start_dll_create_~head~0#1.base|) 4)))) (forall ((v_ArrVal_2681 (Array Int Int)) (v_ArrVal_2679 Int)) (= (select |c_#valid| (select (select (let ((.cse1 (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_115| v_ArrVal_2679))) (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base| .cse1) (select .cse1 (+ |c_ULTIMATE.start_dll_create_~head~0#1.offset| 4)) v_ArrVal_2681)) |c_ULTIMATE.start_dll_create_~head~0#1.base|) 4)) 1))) (< |c_ULTIMATE.start_dll_create_~head~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_115|))) is different from false [2021-11-25 20:25:47,541 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_dll_update_at_~head#1.offset_115| Int)) (or (and (forall ((v_ArrVal_2681 (Array Int Int)) (v_ArrVal_2679 Int)) (not (= |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (select (select (let ((.cse0 (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_115| v_ArrVal_2679))) (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| .cse0) (select .cse0 (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 4)) v_ArrVal_2681)) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) 4)))) (forall ((v_ArrVal_2681 (Array Int Int)) (v_ArrVal_2679 Int)) (= (select |c_#valid| (select (select (let ((.cse1 (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_115| v_ArrVal_2679))) (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| .cse1) (select .cse1 (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 4)) v_ArrVal_2681)) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) 4)) 1))) (< |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_115|))) is different from false [2021-11-25 20:25:47,556 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:25:47,557 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 83 treesize of output 87 [2021-11-25 20:25:47,611 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_dll_update_at_~head#1.offset_115| Int)) (or (< |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_115|) (and (forall ((v_prenex_27 Int) (v_ArrVal_2677 (Array Int Int)) (v_prenex_26 (Array Int Int))) (not (= (select (select (let ((.cse0 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_2677))) (let ((.cse1 (store (select .cse0 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_115| v_prenex_27))) (store (store .cse0 |c_ULTIMATE.start_dll_create_~new_head~0#1.base| .cse1) (select .cse1 (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 4)) v_prenex_26))) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) 4) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|))) (forall ((v_ArrVal_2677 (Array Int Int)) (v_ArrVal_2681 (Array Int Int)) (v_ArrVal_2679 Int)) (= |c_ULTIMATE.start_dll_create_~head~0#1.base| (select (select (let ((.cse2 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_2677))) (let ((.cse3 (store (select .cse2 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_115| v_ArrVal_2679))) (store (store .cse2 |c_ULTIMATE.start_dll_create_~new_head~0#1.base| .cse3) (select .cse3 (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 4)) v_ArrVal_2681))) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) 4)))))) is different from false [2021-11-25 20:25:47,672 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_dll_update_at_~head#1.offset_115| Int)) (or (and (forall ((v_prenex_27 Int) (v_ArrVal_2677 (Array Int Int)) (v_ArrVal_2676 Int) (v_prenex_26 (Array Int Int))) (not (= (select (select (let ((.cse0 (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 8) v_ArrVal_2676)) |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_2677))) (let ((.cse1 (store (select .cse0 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_115| v_prenex_27))) (store (store .cse0 |c_ULTIMATE.start_dll_create_~new_head~0#1.base| .cse1) (select .cse1 (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 4)) v_prenex_26))) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) 4) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|))) (forall ((v_ArrVal_2677 (Array Int Int)) (v_ArrVal_2676 Int) (v_ArrVal_2681 (Array Int Int)) (v_ArrVal_2679 Int)) (= |c_ULTIMATE.start_dll_create_~head~0#1.base| (select (select (let ((.cse2 (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 8) v_ArrVal_2676)) |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_2677))) (let ((.cse3 (store (select .cse2 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_115| v_ArrVal_2679))) (store (store .cse2 |c_ULTIMATE.start_dll_create_~new_head~0#1.base| .cse3) (select .cse3 (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 4)) v_ArrVal_2681))) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) 4)))) (< |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_115|))) is different from false [2021-11-25 20:25:47,680 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:25:47,688 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:25:47,688 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 164 treesize of output 115 [2021-11-25 20:25:47,691 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 171 treesize of output 161 [2021-11-25 20:25:47,694 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 215 treesize of output 205 [2021-11-25 20:25:47,697 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:25:47,699 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:25:47,710 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:25:47,710 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 209 treesize of output 211 [2021-11-25 20:25:47,713 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:25:47,715 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:25:47,727 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:25:47,727 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 216 treesize of output 218 [2021-11-25 20:25:47,733 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:25:47,742 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:25:47,742 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 165 treesize of output 166 [2021-11-25 20:25:47,748 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 155 treesize of output 151 [2021-11-25 20:25:47,751 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:25:47,760 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:25:47,760 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 156 treesize of output 157 [2021-11-25 20:25:47,766 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 146 treesize of output 142 [2021-11-25 20:25:48,019 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 8 trivial. 11 not checked. [2021-11-25 20:25:48,019 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2105742419] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 20:25:48,019 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [228631297] [2021-11-25 20:25:48,020 INFO L159 IcfgInterpreter]: Started Sifa with 24 locations of interest [2021-11-25 20:25:48,020 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 20:25:48,021 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 20:25:48,021 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 20:25:48,021 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 20:25:48,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:48,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:48,051 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2021-11-25 20:25:48,078 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:25:48,086 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:25:48,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:48,096 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2021-11-25 20:25:48,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:48,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:48,117 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 31 [2021-11-25 20:25:48,124 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:25:48,133 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:25:48,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:48,156 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:25:48,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:48,167 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:25:48,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:48,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:48,178 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 31 [2021-11-25 20:25:48,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:48,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:48,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:48,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:48,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:48,249 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 30 [2021-11-25 20:25:48,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:48,284 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2021-11-25 20:25:48,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:48,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:48,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:48,294 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2021-11-25 20:25:48,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:48,307 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2021-11-25 20:25:48,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:48,331 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2021-11-25 20:25:48,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:48,343 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2021-11-25 20:25:48,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:48,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:48,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:48,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:48,356 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-25 20:25:48,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:48,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:48,380 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 42 [2021-11-25 20:25:48,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:48,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:48,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:48,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:48,395 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-25 20:25:48,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:48,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:48,408 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 42 [2021-11-25 20:25:48,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:48,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:48,462 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:25:48,463 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 47 [2021-11-25 20:25:48,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:48,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:48,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:48,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:48,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:48,485 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-25 20:25:48,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:48,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:48,501 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:25:48,502 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 47 [2021-11-25 20:25:48,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:48,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:48,704 INFO L354 Elim1Store]: treesize reduction 34, result has 41.4 percent of original size [2021-11-25 20:25:48,705 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 29 treesize of output 43 [2021-11-25 20:25:48,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:48,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:48,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:48,754 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2021-11-25 20:25:48,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:48,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:48,772 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-25 20:25:48,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:48,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:48,787 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-25 20:25:48,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:48,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:48,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:48,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:48,834 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-25 20:25:48,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:48,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:48,852 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2021-11-25 20:25:48,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:48,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:48,866 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2021-11-25 20:25:48,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:48,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:48,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:48,895 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2021-11-25 20:25:48,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:48,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:48,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:48,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:48,913 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-25 20:25:48,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:48,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:48,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:48,925 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2021-11-25 20:25:48,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:48,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:48,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:48,970 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 49 [2021-11-25 20:25:48,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:48,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:48,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:48,982 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 49 [2021-11-25 20:25:48,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:48,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:48,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:49,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:49,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:49,002 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-25 20:25:49,038 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-25 20:25:49,043 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 20:25:49,057 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:25:49,063 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:25:49,067 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:25:49,079 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:25:49,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:49,087 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:25:49,094 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:25:49,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:49,107 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:25:49,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:49,113 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:25:49,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:49,122 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:25:49,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:49,142 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:25:49,152 INFO L354 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2021-11-25 20:25:49,152 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 38 [2021-11-25 20:25:49,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:49,164 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:25:49,172 INFO L354 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2021-11-25 20:25:49,172 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 34 [2021-11-25 20:25:49,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:49,181 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:25:49,238 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-25 20:25:49,242 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 20:25:49,256 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:25:49,261 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:25:49,268 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:25:49,279 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:25:49,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:49,288 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:25:49,294 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:25:49,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:49,306 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:25:49,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:49,313 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:25:49,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:49,319 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:25:49,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:49,342 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:25:49,352 INFO L354 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2021-11-25 20:25:49,352 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 38 [2021-11-25 20:25:49,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:49,361 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:25:49,369 INFO L354 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2021-11-25 20:25:49,370 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 34 [2021-11-25 20:25:49,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:49,379 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:25:49,498 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:25:49,508 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:25:49,523 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:25:49,618 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:25:49,627 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:25:49,636 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:25:49,762 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:25:49,770 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:25:49,778 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:25:50,467 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-25 20:25:50,529 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 13 [2021-11-25 20:25:50,596 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 13 [2021-11-25 20:25:50,897 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 20:25:50,901 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-25 20:25:50,919 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:25:50,924 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:25:50,931 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:25:50,979 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:25:50,985 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:25:50,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:50,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:50,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:50,995 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:25:51,000 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 20:25:51,000 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 198 treesize of output 184 [2021-11-25 20:25:51,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:51,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:51,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:51,075 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:25:51,079 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-25 20:25:51,080 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 198 treesize of output 184 [2021-11-25 20:25:51,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:51,102 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:25:51,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:51,112 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:25:51,136 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-25 20:25:54,916 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '9055#(and (<= 0 |ULTIMATE.start_main_~s~0#1.offset|) (<= 1 |ULTIMATE.start_dll_create_~data#1|) (<= 0 |ULTIMATE.start_dll_destroy_#in~head#1.offset|) (<= 2 |ULTIMATE.start_dll_create_#in~len#1|) (<= |ULTIMATE.start_dll_create_#res#1.offset| 0) (not (= (select |#valid| |ULTIMATE.start_dll_destroy_~head#1.base|) 1)) (or (not (= |ULTIMATE.start_dll_destroy_~head#1.base| 0)) (not (= |ULTIMATE.start_dll_destroy_~head#1.offset| 0))) (<= |ULTIMATE.start_dll_create_~data#1| 1) (<= 0 (+ |ULTIMATE.start_dll_create_~len#1| 1)) (<= 2 |ULTIMATE.start_main_~i~0#1|) (= |ULTIMATE.start_main_~data~0#1| 1) (<= |ULTIMATE.start_dll_create_#in~len#1| 2) (<= |ULTIMATE.start_dll_destroy_#in~head#1.offset| 0) (<= |ULTIMATE.start_dll_create_~len#1| 0) (<= 1 |ULTIMATE.start_dll_create_#in~data#1|) (= |ULTIMATE.start_main_~len~0#1| 2) (= |#NULL.offset| 0) (<= |ULTIMATE.start_dll_create_#in~data#1| 1) (<= |ULTIMATE.start_dll_create_~head~0#1.offset| 0) (<= 0 |ULTIMATE.start_dll_create_~head~0#1.offset|) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~s~0#1.offset| 0) (<= 0 |ULTIMATE.start_dll_create_#res#1.offset|) (= |#NULL.base| 0))' at error location [2021-11-25 20:25:54,916 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-25 20:25:54,916 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-25 20:25:54,916 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 16, 18] total 36 [2021-11-25 20:25:54,916 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170054631] [2021-11-25 20:25:54,916 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-25 20:25:54,917 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2021-11-25 20:25:54,917 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:25:54,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2021-11-25 20:25:54,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=225, Invalid=2154, Unknown=9, NotChecked=918, Total=3306 [2021-11-25 20:25:54,918 INFO L87 Difference]: Start difference. First operand 52 states and 52 transitions. Second operand has 37 states, 36 states have (on average 2.5277777777777777) internal successors, (91), 37 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:25:57,114 WARN L838 $PredicateComparison]: unable to prove that (and (= |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 0) (= |c_ULTIMATE.start_dll_create_~head~0#1.base| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 4))) (not (= |c_ULTIMATE.start_dll_create_~head~0#1.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|)) (= (select |c_#valid| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) 1) (forall ((|v_ULTIMATE.start_dll_update_at_~head#1.offset_115| Int)) (or (< |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_115|) (and (forall ((v_prenex_27 Int) (v_ArrVal_2677 (Array Int Int)) (v_prenex_26 (Array Int Int))) (not (= (select (select (let ((.cse0 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_2677))) (let ((.cse1 (store (select .cse0 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_115| v_prenex_27))) (store (store .cse0 |c_ULTIMATE.start_dll_create_~new_head~0#1.base| .cse1) (select .cse1 (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 4)) v_prenex_26))) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) 4) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|))) (forall ((v_ArrVal_2677 (Array Int Int)) (v_ArrVal_2681 (Array Int Int)) (v_ArrVal_2679 Int)) (= |c_ULTIMATE.start_dll_create_~head~0#1.base| (select (select (let ((.cse2 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_2677))) (let ((.cse3 (store (select .cse2 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_115| v_ArrVal_2679))) (store (store .cse2 |c_ULTIMATE.start_dll_create_~new_head~0#1.base| .cse3) (select .cse3 (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 4)) v_ArrVal_2681))) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) 4))))))) is different from false [2021-11-25 20:25:57,120 WARN L838 $PredicateComparison]: unable to prove that (and (= |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 0) (= |c_ULTIMATE.start_dll_create_~head~0#1.base| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 4))) (not (= |c_ULTIMATE.start_dll_create_~head~0#1.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|)) (forall ((|v_ULTIMATE.start_dll_update_at_~head#1.offset_115| Int)) (or (< |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_115|) (and (forall ((v_prenex_27 Int) (v_ArrVal_2677 (Array Int Int)) (v_prenex_26 (Array Int Int))) (not (= (select (select (let ((.cse0 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_2677))) (let ((.cse1 (store (select .cse0 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_115| v_prenex_27))) (store (store .cse0 |c_ULTIMATE.start_dll_create_~new_head~0#1.base| .cse1) (select .cse1 (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 4)) v_prenex_26))) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) 4) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|))) (forall ((v_ArrVal_2677 (Array Int Int)) (v_ArrVal_2681 (Array Int Int)) (v_ArrVal_2679 Int)) (= |c_ULTIMATE.start_dll_create_~head~0#1.base| (select (select (let ((.cse2 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_2677))) (let ((.cse3 (store (select .cse2 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_115| v_ArrVal_2679))) (store (store .cse2 |c_ULTIMATE.start_dll_create_~new_head~0#1.base| .cse3) (select .cse3 (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 4)) v_ArrVal_2681))) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) 4))))))) is different from false [2021-11-25 20:25:57,125 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 4)))) (and (= |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 0) (not (= .cse0 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|)) (forall ((|v_ULTIMATE.start_dll_update_at_~head#1.offset_115| Int)) (or (and (forall ((v_ArrVal_2681 (Array Int Int)) (v_ArrVal_2679 Int)) (not (= |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (select (select (let ((.cse1 (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_115| v_ArrVal_2679))) (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| .cse1) (select .cse1 (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 4)) v_ArrVal_2681)) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) 4)))) (forall ((v_ArrVal_2681 (Array Int Int)) (v_ArrVal_2679 Int)) (= (select |c_#valid| (select (select (let ((.cse2 (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_115| v_ArrVal_2679))) (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| .cse2) (select .cse2 (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 4)) v_ArrVal_2681)) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) 4)) 1))) (< |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_115|))) (= (select |c_#valid| .cse0) 1))) is different from false [2021-11-25 20:25:57,130 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base|) 4))) (and (not (= |c_ULTIMATE.start_dll_create_~head~0#1.base| .cse0)) (= (select |c_#valid| .cse0) 1) (= |c_ULTIMATE.start_dll_create_~head~0#1.offset| 0) (forall ((|v_ULTIMATE.start_dll_update_at_~head#1.offset_115| Int)) (or (and (forall ((v_ArrVal_2681 (Array Int Int)) (v_ArrVal_2679 Int)) (not (= |c_ULTIMATE.start_dll_create_~head~0#1.base| (select (select (let ((.cse1 (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_115| v_ArrVal_2679))) (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base| .cse1) (select .cse1 (+ |c_ULTIMATE.start_dll_create_~head~0#1.offset| 4)) v_ArrVal_2681)) |c_ULTIMATE.start_dll_create_~head~0#1.base|) 4)))) (forall ((v_ArrVal_2681 (Array Int Int)) (v_ArrVal_2679 Int)) (= (select |c_#valid| (select (select (let ((.cse2 (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_115| v_ArrVal_2679))) (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base| .cse2) (select .cse2 (+ |c_ULTIMATE.start_dll_create_~head~0#1.offset| 4)) v_ArrVal_2681)) |c_ULTIMATE.start_dll_create_~head~0#1.base|) 4)) 1))) (< |c_ULTIMATE.start_dll_create_~head~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_115|))))) is different from false [2021-11-25 20:25:57,133 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~s~0#1.base|) 4))) (and (not (= |c_ULTIMATE.start_main_~s~0#1.base| .cse0)) (= (select |c_#valid| .cse0) 1) (forall ((|v_ULTIMATE.start_dll_update_at_~head#1.offset_115| Int)) (or (and (forall ((v_ArrVal_2681 (Array Int Int)) (v_ArrVal_2679 Int)) (not (= |c_ULTIMATE.start_main_~s~0#1.base| (select (select (let ((.cse1 (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~s~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_115| v_ArrVal_2679))) (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~s~0#1.base| .cse1) (select .cse1 (+ |c_ULTIMATE.start_main_~s~0#1.offset| 4)) v_ArrVal_2681)) |c_ULTIMATE.start_main_~s~0#1.base|) 4)))) (forall ((v_ArrVal_2681 (Array Int Int)) (v_ArrVal_2679 Int)) (= (select |c_#valid| (select (select (let ((.cse2 (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~s~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_115| v_ArrVal_2679))) (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~s~0#1.base| .cse2) (select .cse2 (+ |c_ULTIMATE.start_main_~s~0#1.offset| 4)) v_ArrVal_2681)) |c_ULTIMATE.start_main_~s~0#1.base|) 4)) 1))) (< |c_ULTIMATE.start_main_~s~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_115|))) (= |c_ULTIMATE.start_main_~s~0#1.offset| 0))) is different from false [2021-11-25 20:25:57,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:25:57,493 INFO L93 Difference]: Finished difference Result 58 states and 58 transitions. [2021-11-25 20:25:57,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-25 20:25:57,494 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 36 states have (on average 2.5277777777777777) internal successors, (91), 37 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2021-11-25 20:25:57,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:25:57,494 INFO L225 Difference]: With dead ends: 58 [2021-11-25 20:25:57,494 INFO L226 Difference]: Without dead ends: 58 [2021-11-25 20:25:57,495 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 92 SyntacticMatches, 6 SemanticMatches, 68 ConstructedPredicates, 14 IntricatePredicates, 0 DeprecatedPredicates, 1026 ImplicationChecksByTransitivity, 6.5s TimeCoverageRelationStatistics Valid=298, Invalid=2824, Unknown=14, NotChecked=1694, Total=4830 [2021-11-25 20:25:57,495 INFO L933 BasicCegarLoop]: 6 mSDtfsCounter, 47 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 441 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 888 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 441 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 432 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-25 20:25:57,496 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [47 Valid, 80 Invalid, 888 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 441 Invalid, 0 Unknown, 432 Unchecked, 0.2s Time] [2021-11-25 20:25:57,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2021-11-25 20:25:57,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 55. [2021-11-25 20:25:57,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 50 states have (on average 1.14) internal successors, (57), 54 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:25:57,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 57 transitions. [2021-11-25 20:25:57,498 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 57 transitions. Word has length 44 [2021-11-25 20:25:57,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:25:57,499 INFO L470 AbstractCegarLoop]: Abstraction has 55 states and 57 transitions. [2021-11-25 20:25:57,499 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 36 states have (on average 2.5277777777777777) internal successors, (91), 37 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:25:57,499 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 57 transitions. [2021-11-25 20:25:57,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-11-25 20:25:57,499 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:25:57,500 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:25:57,528 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2021-11-25 20:25:57,715 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2021-11-25 20:25:57,715 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr17REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 19 more)] === [2021-11-25 20:25:57,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:25:57,715 INFO L85 PathProgramCache]: Analyzing trace with hash 814425933, now seen corresponding path program 1 times [2021-11-25 20:25:57,716 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:25:57,716 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158961429] [2021-11-25 20:25:57,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:25:57,716 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:25:57,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:25:58,283 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 5 proven. 16 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-25 20:25:58,283 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:25:58,283 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [158961429] [2021-11-25 20:25:58,283 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [158961429] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 20:25:58,283 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [198199666] [2021-11-25 20:25:58,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:25:58,283 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:25:58,283 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:25:58,284 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:25:58,285 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2021-11-25 20:25:58,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:25:58,477 INFO L263 TraceCheckSpWp]: Trace formula consists of 398 conjuncts, 77 conjunts are in the unsatisfiable core [2021-11-25 20:25:58,479 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:25:58,483 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 20:25:58,552 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-25 20:25:58,552 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-11-25 20:25:58,595 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:25:58,600 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:25:58,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:58,639 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:25:58,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:58,646 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:25:58,678 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-25 20:25:58,678 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 54 treesize of output 53 [2021-11-25 20:25:58,681 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 41 [2021-11-25 20:25:58,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:58,866 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 30 [2021-11-25 20:25:58,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:25:58,870 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 29 [2021-11-25 20:25:58,990 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-25 20:25:58,990 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2021-11-25 20:25:58,993 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 33 [2021-11-25 20:25:59,154 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:25:59,155 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 28 [2021-11-25 20:25:59,161 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:25:59,161 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 25 [2021-11-25 20:25:59,323 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 2 proven. 15 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-25 20:25:59,323 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 20:25:59,591 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_2818 (Array Int Int)) (v_ArrVal_2817 (Array Int Int))) (<= (+ (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_update_at_~head#1.base| v_ArrVal_2818) |c_ULTIMATE.start_main_~s~0#1.base|) 4) 8) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_update_at_~head#1.base| v_ArrVal_2817) |c_ULTIMATE.start_main_~s~0#1.base|) 4)))) (forall ((v_ArrVal_2818 (Array Int Int))) (<= 0 (+ (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_update_at_~head#1.base| v_ArrVal_2818) |c_ULTIMATE.start_main_~s~0#1.base|) 4) 4)))) is different from false [2021-11-25 20:25:59,605 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_2818 (Array Int Int)) (v_ArrVal_2817 (Array Int Int))) (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_update_at_~head#1.base|) (+ |c_ULTIMATE.start_dll_update_at_~head#1.offset| 4)))) (<= (+ (select (select (store |c_#memory_$Pointer$.offset| .cse0 v_ArrVal_2818) |c_ULTIMATE.start_main_~s~0#1.base|) 4) 8) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| .cse0 v_ArrVal_2817) |c_ULTIMATE.start_main_~s~0#1.base|) 4))))) (forall ((v_ArrVal_2818 (Array Int Int))) (<= 0 (+ (select (select (store |c_#memory_$Pointer$.offset| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_update_at_~head#1.base|) (+ |c_ULTIMATE.start_dll_update_at_~head#1.offset| 4)) v_ArrVal_2818) |c_ULTIMATE.start_main_~s~0#1.base|) 4) 4)))) is different from false [2021-11-25 20:25:59,620 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_2818 (Array Int Int))) (<= 0 (+ (select (select (store |c_#memory_$Pointer$.offset| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~s~0#1.base|) (+ |c_ULTIMATE.start_main_~s~0#1.offset| 4)) v_ArrVal_2818) |c_ULTIMATE.start_main_~s~0#1.base|) 4) 4))) (forall ((v_ArrVal_2818 (Array Int Int)) (v_ArrVal_2817 (Array Int Int))) (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~s~0#1.base|) (+ |c_ULTIMATE.start_main_~s~0#1.offset| 4)))) (<= (+ (select (select (store |c_#memory_$Pointer$.offset| .cse0 v_ArrVal_2818) |c_ULTIMATE.start_main_~s~0#1.base|) 4) 8) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| .cse0 v_ArrVal_2817) |c_ULTIMATE.start_main_~s~0#1.base|) 4)))))) is different from false [2021-11-25 20:25:59,632 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_2818 (Array Int Int)) (v_ArrVal_2814 Int) (v_ArrVal_2813 Int)) (<= 0 (+ (select (select (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_update_at_~head#1.base| (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_update_at_~head#1.base|) |c_ULTIMATE.start_dll_update_at_~head#1.offset| v_ArrVal_2813)) (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_update_at_~head#1.base| (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_update_at_~head#1.base|) |c_ULTIMATE.start_dll_update_at_~head#1.offset| v_ArrVal_2814)) |c_ULTIMATE.start_main_~s~0#1.base|) (+ |c_ULTIMATE.start_main_~s~0#1.offset| 4)) v_ArrVal_2818) |c_ULTIMATE.start_main_~s~0#1.base|) 4) 4))) (forall ((v_ArrVal_2818 (Array Int Int)) (v_ArrVal_2817 (Array Int Int)) (v_ArrVal_2814 Int) (v_ArrVal_2813 Int)) (let ((.cse1 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_update_at_~head#1.base| (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_update_at_~head#1.base|) |c_ULTIMATE.start_dll_update_at_~head#1.offset| v_ArrVal_2814)))) (let ((.cse0 (select (select .cse1 |c_ULTIMATE.start_main_~s~0#1.base|) (+ |c_ULTIMATE.start_main_~s~0#1.offset| 4)))) (<= (+ 8 (select (select (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_update_at_~head#1.base| (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_update_at_~head#1.base|) |c_ULTIMATE.start_dll_update_at_~head#1.offset| v_ArrVal_2813)) .cse0 v_ArrVal_2818) |c_ULTIMATE.start_main_~s~0#1.base|) 4)) (select |c_#length| (select (select (store .cse1 .cse0 v_ArrVal_2817) |c_ULTIMATE.start_main_~s~0#1.base|) 4))))))) is different from false [2021-11-25 20:25:59,673 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_dll_update_at_~head#1.offset_123| Int)) (or (and (forall ((v_ArrVal_2818 (Array Int Int)) (v_ArrVal_2814 Int) (v_ArrVal_2813 Int)) (<= 0 (+ (select (select (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~s~0#1.base| (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~s~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_123| v_ArrVal_2813)) (select (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~s~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_123| v_ArrVal_2814) (+ |c_ULTIMATE.start_main_~s~0#1.offset| 4)) v_ArrVal_2818) |c_ULTIMATE.start_main_~s~0#1.base|) 4) 4))) (forall ((v_ArrVal_2818 (Array Int Int)) (v_ArrVal_2817 (Array Int Int)) (v_ArrVal_2814 Int) (v_ArrVal_2813 Int)) (let ((.cse1 (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~s~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_123| v_ArrVal_2814))) (let ((.cse0 (select .cse1 (+ |c_ULTIMATE.start_main_~s~0#1.offset| 4)))) (<= (+ (select (select (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~s~0#1.base| (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~s~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_123| v_ArrVal_2813)) .cse0 v_ArrVal_2818) |c_ULTIMATE.start_main_~s~0#1.base|) 4) 8) (select |c_#length| (select (select (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~s~0#1.base| .cse1) .cse0 v_ArrVal_2817) |c_ULTIMATE.start_main_~s~0#1.base|) 4))))))) (< |c_ULTIMATE.start_main_~s~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_123|))) is different from false [2021-11-25 20:25:59,720 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_dll_update_at_~head#1.offset_123| Int)) (or (< |c_ULTIMATE.start_dll_create_~head~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_123|) (and (forall ((v_ArrVal_2818 (Array Int Int)) (v_ArrVal_2817 (Array Int Int)) (v_ArrVal_2814 Int) (v_ArrVal_2813 Int)) (let ((.cse1 (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_123| v_ArrVal_2814))) (let ((.cse0 (select .cse1 (+ |c_ULTIMATE.start_dll_create_~head~0#1.offset| 4)))) (<= (+ 8 (select (select (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~head~0#1.base| (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_123| v_ArrVal_2813)) .cse0 v_ArrVal_2818) |c_ULTIMATE.start_dll_create_~head~0#1.base|) 4)) (select |c_#length| (select (select (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base| .cse1) .cse0 v_ArrVal_2817) |c_ULTIMATE.start_dll_create_~head~0#1.base|) 4)))))) (forall ((v_ArrVal_2818 (Array Int Int)) (v_ArrVal_2814 Int) (v_ArrVal_2813 Int)) (<= 0 (+ (select (select (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~head~0#1.base| (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_123| v_ArrVal_2813)) (select (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_123| v_ArrVal_2814) (+ |c_ULTIMATE.start_dll_create_~head~0#1.offset| 4)) v_ArrVal_2818) |c_ULTIMATE.start_dll_create_~head~0#1.base|) 4) 4)))))) is different from false [2021-11-25 20:25:59,753 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_dll_update_at_~head#1.offset_123| Int)) (or (< |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_123|) (and (forall ((v_ArrVal_2818 (Array Int Int)) (v_ArrVal_2814 Int) (v_ArrVal_2813 Int)) (<= 0 (+ (select (select (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_123| v_ArrVal_2813)) (select (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_123| v_ArrVal_2814) (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 4)) v_ArrVal_2818) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) 4) 4))) (forall ((v_ArrVal_2818 (Array Int Int)) (v_ArrVal_2817 (Array Int Int)) (v_ArrVal_2814 Int) (v_ArrVal_2813 Int)) (let ((.cse1 (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_123| v_ArrVal_2814))) (let ((.cse0 (select .cse1 (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 4)))) (<= (+ (select (select (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_123| v_ArrVal_2813)) .cse0 v_ArrVal_2818) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) 4) 8) (select |c_#length| (select (select (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| .cse1) .cse0 v_ArrVal_2817) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) 4))))))))) is different from false [2021-11-25 20:25:59,772 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:25:59,772 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 120 treesize of output 124 [2021-11-25 20:25:59,871 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_dll_update_at_~head#1.offset_123| Int)) (or (< |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_123|) (and (forall ((v_prenex_37 Int) (v_ArrVal_2811 (Array Int Int)) (v_ArrVal_2817 (Array Int Int))) (= |c_ULTIMATE.start_dll_create_~head~0#1.base| (select (select (let ((.cse0 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_2811))) (let ((.cse1 (store (select .cse0 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_123| v_prenex_37))) (store (store .cse0 |c_ULTIMATE.start_dll_create_~new_head~0#1.base| .cse1) (select .cse1 (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 4)) v_ArrVal_2817))) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) 4))) (forall ((v_prenex_38 Int) (v_prenex_37 Int) (v_ArrVal_2812 (Array Int Int)) (v_ArrVal_2811 (Array Int Int)) (v_prenex_36 (Array Int Int))) (<= (select (select (store (let ((.cse2 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_2812))) (store .cse2 |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store (select .cse2 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_123| v_prenex_38))) (select (store (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_2811) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_123| v_prenex_37) (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 4)) v_prenex_36) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) 4) (+ |c_ULTIMATE.start_dll_create_~head~0#1.offset| 4))) (forall ((v_ArrVal_2812 (Array Int Int)) (v_ArrVal_2811 (Array Int Int)) (v_ArrVal_2818 (Array Int Int)) (v_ArrVal_2814 Int) (v_ArrVal_2813 Int)) (<= 0 (+ 4 (select (select (store (let ((.cse3 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_2812))) (store .cse3 |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store (select .cse3 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_123| v_ArrVal_2813))) (select (store (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_2811) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_123| v_ArrVal_2814) (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 4)) v_ArrVal_2818) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) 4))))))) is different from false [2021-11-25 20:25:59,968 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_dll_update_at_~head#1.offset_123| Int)) (or (< |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_123|) (and (forall ((v_prenex_37 Int) (v_ArrVal_2811 (Array Int Int)) (v_ArrVal_2809 Int) (v_ArrVal_2817 (Array Int Int))) (= |c_ULTIMATE.start_dll_create_~head~0#1.base| (select (select (let ((.cse0 (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 8) v_ArrVal_2809)) |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_2811))) (let ((.cse1 (store (select .cse0 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_123| v_prenex_37))) (store (store .cse0 |c_ULTIMATE.start_dll_create_~new_head~0#1.base| .cse1) (select .cse1 (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 4)) v_ArrVal_2817))) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) 4))) (forall ((v_ArrVal_2812 (Array Int Int)) (v_ArrVal_2811 (Array Int Int)) (v_ArrVal_2809 Int) (v_ArrVal_2808 Int) (v_ArrVal_2818 (Array Int Int)) (v_ArrVal_2814 Int) (v_ArrVal_2813 Int)) (<= 0 (+ 4 (select (select (let ((.cse3 (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 8))) (store (let ((.cse2 (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) .cse3 v_ArrVal_2808)) |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_2812))) (store .cse2 |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store (select .cse2 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_123| v_ArrVal_2813))) (select (store (select (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) .cse3 v_ArrVal_2809)) |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_2811) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_123| v_ArrVal_2814) (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 4)) v_ArrVal_2818)) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) 4)))) (forall ((v_prenex_38 Int) (v_prenex_37 Int) (v_ArrVal_2812 (Array Int Int)) (v_ArrVal_2811 (Array Int Int)) (v_ArrVal_2809 Int) (v_ArrVal_2808 Int) (v_prenex_36 (Array Int Int))) (<= (select (select (let ((.cse5 (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 8))) (store (let ((.cse4 (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) .cse5 v_ArrVal_2808)) |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_2812))) (store .cse4 |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store (select .cse4 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_123| v_prenex_38))) (select (store (select (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) .cse5 v_ArrVal_2809)) |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_2811) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_123| v_prenex_37) (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 4)) v_prenex_36)) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) 4) (+ |c_ULTIMATE.start_dll_create_~head~0#1.offset| 4)))))) is different from false [2021-11-25 20:25:59,981 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:25:59,990 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:25:59,990 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 248 treesize of output 229 [2021-11-25 20:25:59,993 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:26:00,007 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:26:00,007 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 3 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 229 treesize of output 214 [2021-11-25 20:26:00,010 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 254 treesize of output 248 [2021-11-25 20:26:00,015 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 370 treesize of output 362 [2021-11-25 20:26:00,018 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:26:00,020 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:26:00,020 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 350 treesize of output 326 [2021-11-25 20:26:00,026 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:26:00,044 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:26:00,044 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 350 treesize of output 358 [2021-11-25 20:26:00,050 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 398 treesize of output 392 [2021-11-25 20:26:00,057 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 514 treesize of output 506 [2021-11-25 20:26:00,062 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:26:00,064 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:26:00,065 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 494 treesize of output 470 [2021-11-25 20:26:00,072 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:26:00,086 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:26:00,086 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 494 treesize of output 502 [2021-11-25 20:26:00,096 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 556 treesize of output 546 [2021-11-25 20:26:00,107 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:26:00,109 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:26:00,121 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:26:00,122 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 550 treesize of output 552 [2021-11-25 20:26:00,140 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:26:00,142 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 439 treesize of output 423 [2021-11-25 20:26:00,148 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:26:00,151 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 411 treesize of output 395 [2021-11-25 20:26:00,159 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 419 treesize of output 415 [2021-11-25 20:26:00,178 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 415 treesize of output 407 [2021-11-25 20:26:00,188 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:26:00,200 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:26:00,201 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 411 treesize of output 412 [2021-11-25 20:26:00,215 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 425 treesize of output 421 [2021-11-25 20:26:00,227 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 421 treesize of output 413 [2021-11-25 20:26:00,239 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 413 treesize of output 409 [2021-11-25 20:26:00,846 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 8 trivial. 11 not checked. [2021-11-25 20:26:00,847 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [198199666] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 20:26:00,847 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [537324795] [2021-11-25 20:26:00,848 INFO L159 IcfgInterpreter]: Started Sifa with 24 locations of interest [2021-11-25 20:26:00,848 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 20:26:00,848 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 20:26:00,848 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 20:26:00,848 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 20:26:00,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:00,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:00,886 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2021-11-25 20:26:00,908 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:26:00,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:00,915 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2021-11-25 20:26:00,923 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:26:00,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:00,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:00,939 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 31 [2021-11-25 20:26:00,947 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:26:00,953 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:26:00,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:00,969 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:26:00,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:00,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:00,977 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 31 [2021-11-25 20:26:00,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:00,989 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:26:01,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:01,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:01,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:01,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:01,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:01,035 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 35 [2021-11-25 20:26:01,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:01,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:01,067 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-25 20:26:01,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:01,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:01,077 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-25 20:26:01,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:01,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:01,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:01,089 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2021-11-25 20:26:01,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:01,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:01,117 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2021-11-25 20:26:01,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:01,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:01,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:01,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:01,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:01,133 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-25 20:26:01,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:01,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:01,144 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2021-11-25 20:26:01,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:01,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:01,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:01,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:01,169 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-25 20:26:01,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:01,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:01,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:01,181 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2021-11-25 20:26:01,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:01,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:01,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:01,197 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2021-11-25 20:26:01,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:01,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:01,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:01,232 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 49 [2021-11-25 20:26:01,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:01,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:01,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:01,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:01,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:01,261 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-25 20:26:01,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:01,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:01,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:01,285 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 49 [2021-11-25 20:26:01,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:01,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:01,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:01,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:01,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:01,478 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 35 [2021-11-25 20:26:01,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:01,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:01,511 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-25 20:26:01,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:01,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:01,534 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-25 20:26:01,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:01,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:01,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:01,548 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2021-11-25 20:26:01,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:01,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:01,572 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2021-11-25 20:26:01,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:01,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:01,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:01,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:01,589 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-25 20:26:01,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:01,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:01,601 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2021-11-25 20:26:01,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:01,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:01,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:01,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:01,624 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-25 20:26:01,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:01,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:01,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:01,640 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2021-11-25 20:26:01,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:01,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:01,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:01,653 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2021-11-25 20:26:01,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:01,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:01,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:01,690 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 49 [2021-11-25 20:26:01,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:01,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:01,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:01,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:01,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:01,703 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-25 20:26:01,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:01,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:01,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:01,723 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 49 [2021-11-25 20:26:01,890 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:26:01,899 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:26:01,907 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:26:01,995 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:26:02,002 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:26:02,014 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:26:02,124 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:26:02,131 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:26:02,147 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:26:03,199 INFO L354 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2021-11-25 20:26:03,199 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 183 treesize of output 187 [2021-11-25 20:26:03,451 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 13 [2021-11-25 20:26:03,540 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 13 [2021-11-25 20:26:03,858 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 20:26:03,868 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-25 20:26:03,892 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:26:03,901 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:26:03,909 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:26:03,933 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:26:03,945 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:26:03,950 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:26:03,971 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:26:03,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:03,977 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:26:03,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:03,986 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:26:03,996 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-25 20:26:08,409 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '9527#(and (<= |ULTIMATE.start_main_~expected~0#1| 2147483647) (<= 0 |ULTIMATE.start_main_~s~0#1.offset|) (<= |ULTIMATE.start_dll_get_data_at_#in~head#1.offset| 0) (<= 1 |ULTIMATE.start_dll_create_~data#1|) (<= 0 |ULTIMATE.start_dll_destroy_#in~head#1.offset|) (<= 2 |ULTIMATE.start_dll_create_#in~len#1|) (<= |ULTIMATE.start_dll_create_#res#1.offset| 0) (or (not (= |ULTIMATE.start_dll_destroy_~head#1.base| 0)) (not (= |ULTIMATE.start_dll_destroy_~head#1.offset| 0))) (<= 0 |ULTIMATE.start_dll_get_data_at_~head#1.offset|) (<= |ULTIMATE.start_dll_get_data_at_~index#1| 0) (<= |ULTIMATE.start_dll_get_data_at_#res#1| 2147483647) (<= |ULTIMATE.start_dll_create_~data#1| 1) (<= 2 |ULTIMATE.start_main_~i~0#1|) (= |ULTIMATE.start_main_~data~0#1| 1) (<= 0 |ULTIMATE.start_dll_get_data_at_#in~head#1.offset|) (<= 0 |ULTIMATE.start_dll_create_~len#1|) (<= 2 |ULTIMATE.start_dll_get_data_at_#res#1|) (<= |ULTIMATE.start_dll_create_#in~len#1| 2) (or (< (+ |ULTIMATE.start_dll_destroy_~head#1.offset| 4) 0) (< (select |#length| |ULTIMATE.start_dll_destroy_~head#1.base|) (+ |ULTIMATE.start_dll_destroy_~head#1.offset| 8))) (<= |ULTIMATE.start_dll_destroy_#in~head#1.offset| 0) (<= 0 |ULTIMATE.start_dll_get_data_at_#in~index#1|) (<= |ULTIMATE.start_dll_create_~len#1| 0) (<= 1 |ULTIMATE.start_dll_create_#in~data#1|) (= |ULTIMATE.start_main_~len~0#1| 2) (= |#NULL.offset| 0) (<= |ULTIMATE.start_dll_create_#in~data#1| 1) (<= |ULTIMATE.start_dll_create_~head~0#1.offset| 0) (<= 0 |ULTIMATE.start_dll_create_~head~0#1.offset|) (<= 2 |ULTIMATE.start_main_~expected~0#1|) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~s~0#1.offset| 0) (<= 0 |ULTIMATE.start_dll_create_#res#1.offset|) (= |#NULL.base| 0))' at error location [2021-11-25 20:26:08,410 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-25 20:26:08,410 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-25 20:26:08,410 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 16, 18] total 51 [2021-11-25 20:26:08,410 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054992111] [2021-11-25 20:26:08,410 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-25 20:26:08,411 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2021-11-25 20:26:08,411 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:26:08,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2021-11-25 20:26:08,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=282, Invalid=3905, Unknown=9, NotChecked=1206, Total=5402 [2021-11-25 20:26:08,412 INFO L87 Difference]: Start difference. First operand 55 states and 57 transitions. Second operand has 52 states, 51 states have (on average 2.372549019607843) internal successors, (121), 52 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:26:10,856 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse6 (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 4))) (let ((.cse1 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) .cse6)) (.cse0 (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) .cse6))) (and (= |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 0) (= .cse0 0) (= |c_ULTIMATE.start_dll_create_~head~0#1.base| .cse1) (not (= |c_ULTIMATE.start_dll_create_~head~0#1.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|)) (<= 12 (select |c_#length| |c_ULTIMATE.start_dll_create_~head~0#1.base|)) (= (select |c_#valid| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) 1) (not (= .cse1 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|)) (forall ((|v_ULTIMATE.start_dll_update_at_~head#1.offset_123| Int)) (or (< |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_123|) (and (forall ((v_prenex_37 Int) (v_ArrVal_2811 (Array Int Int)) (v_ArrVal_2817 (Array Int Int))) (= |c_ULTIMATE.start_dll_create_~head~0#1.base| (select (select (let ((.cse2 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_2811))) (let ((.cse3 (store (select .cse2 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_123| v_prenex_37))) (store (store .cse2 |c_ULTIMATE.start_dll_create_~new_head~0#1.base| .cse3) (select .cse3 (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 4)) v_ArrVal_2817))) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) 4))) (forall ((v_prenex_38 Int) (v_prenex_37 Int) (v_ArrVal_2812 (Array Int Int)) (v_ArrVal_2811 (Array Int Int)) (v_prenex_36 (Array Int Int))) (<= (select (select (store (let ((.cse4 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_2812))) (store .cse4 |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store (select .cse4 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_123| v_prenex_38))) (select (store (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_2811) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_123| v_prenex_37) (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 4)) v_prenex_36) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) 4) (+ |c_ULTIMATE.start_dll_create_~head~0#1.offset| 4))) (forall ((v_ArrVal_2812 (Array Int Int)) (v_ArrVal_2811 (Array Int Int)) (v_ArrVal_2818 (Array Int Int)) (v_ArrVal_2814 Int) (v_ArrVal_2813 Int)) (<= 0 (+ 4 (select (select (store (let ((.cse5 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_2812))) (store .cse5 |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store (select .cse5 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_123| v_ArrVal_2813))) (select (store (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_2811) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_123| v_ArrVal_2814) (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 4)) v_ArrVal_2818) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) 4))))))) (<= 0 |c_ULTIMATE.start_dll_create_~head~0#1.offset|) (<= 12 (select |c_#length| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|)) (= .cse0 |c_ULTIMATE.start_dll_create_~head~0#1.offset|)))) is different from false [2021-11-25 20:26:10,863 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse6 (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 4))) (let ((.cse1 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) .cse6)) (.cse0 (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) .cse6))) (and (= |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 0) (= .cse0 0) (= |c_ULTIMATE.start_dll_create_~head~0#1.base| .cse1) (not (= |c_ULTIMATE.start_dll_create_~head~0#1.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|)) (<= 12 (select |c_#length| |c_ULTIMATE.start_dll_create_~head~0#1.base|)) (not (= .cse1 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|)) (forall ((|v_ULTIMATE.start_dll_update_at_~head#1.offset_123| Int)) (or (< |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_123|) (and (forall ((v_prenex_37 Int) (v_ArrVal_2811 (Array Int Int)) (v_ArrVal_2817 (Array Int Int))) (= |c_ULTIMATE.start_dll_create_~head~0#1.base| (select (select (let ((.cse2 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_2811))) (let ((.cse3 (store (select .cse2 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_123| v_prenex_37))) (store (store .cse2 |c_ULTIMATE.start_dll_create_~new_head~0#1.base| .cse3) (select .cse3 (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 4)) v_ArrVal_2817))) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) 4))) (forall ((v_prenex_38 Int) (v_prenex_37 Int) (v_ArrVal_2812 (Array Int Int)) (v_ArrVal_2811 (Array Int Int)) (v_prenex_36 (Array Int Int))) (<= (select (select (store (let ((.cse4 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_2812))) (store .cse4 |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store (select .cse4 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_123| v_prenex_38))) (select (store (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_2811) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_123| v_prenex_37) (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 4)) v_prenex_36) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) 4) (+ |c_ULTIMATE.start_dll_create_~head~0#1.offset| 4))) (forall ((v_ArrVal_2812 (Array Int Int)) (v_ArrVal_2811 (Array Int Int)) (v_ArrVal_2818 (Array Int Int)) (v_ArrVal_2814 Int) (v_ArrVal_2813 Int)) (<= 0 (+ 4 (select (select (store (let ((.cse5 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_2812))) (store .cse5 |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store (select .cse5 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_123| v_ArrVal_2813))) (select (store (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_2811) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_123| v_ArrVal_2814) (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 4)) v_ArrVal_2818) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) 4))))))) (<= 0 |c_ULTIMATE.start_dll_create_~head~0#1.offset|) (= .cse0 |c_ULTIMATE.start_dll_create_~head~0#1.offset|)))) is different from false [2021-11-25 20:26:10,868 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 4))) (let ((.cse3 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) .cse0))) (and (= |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 0) (= (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) .cse0) 0) (forall ((|v_ULTIMATE.start_dll_update_at_~head#1.offset_123| Int)) (or (< |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_123|) (and (forall ((v_ArrVal_2818 (Array Int Int)) (v_ArrVal_2814 Int) (v_ArrVal_2813 Int)) (<= 0 (+ (select (select (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_123| v_ArrVal_2813)) (select (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_123| v_ArrVal_2814) (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 4)) v_ArrVal_2818) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) 4) 4))) (forall ((v_ArrVal_2818 (Array Int Int)) (v_ArrVal_2817 (Array Int Int)) (v_ArrVal_2814 Int) (v_ArrVal_2813 Int)) (let ((.cse2 (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_123| v_ArrVal_2814))) (let ((.cse1 (select .cse2 (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 4)))) (<= (+ (select (select (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_123| v_ArrVal_2813)) .cse1 v_ArrVal_2818) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) 4) 8) (select |c_#length| (select (select (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| .cse2) .cse1 v_ArrVal_2817) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) 4))))))))) (not (= .cse3 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|)) (<= 12 (select |c_#length| .cse3))))) is different from false [2021-11-25 20:26:10,872 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base|) 4))) (and (not (= |c_ULTIMATE.start_dll_create_~head~0#1.base| .cse0)) (forall ((|v_ULTIMATE.start_dll_update_at_~head#1.offset_123| Int)) (or (< |c_ULTIMATE.start_dll_create_~head~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_123|) (and (forall ((v_ArrVal_2818 (Array Int Int)) (v_ArrVal_2817 (Array Int Int)) (v_ArrVal_2814 Int) (v_ArrVal_2813 Int)) (let ((.cse2 (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_123| v_ArrVal_2814))) (let ((.cse1 (select .cse2 (+ |c_ULTIMATE.start_dll_create_~head~0#1.offset| 4)))) (<= (+ 8 (select (select (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~head~0#1.base| (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_123| v_ArrVal_2813)) .cse1 v_ArrVal_2818) |c_ULTIMATE.start_dll_create_~head~0#1.base|) 4)) (select |c_#length| (select (select (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base| .cse2) .cse1 v_ArrVal_2817) |c_ULTIMATE.start_dll_create_~head~0#1.base|) 4)))))) (forall ((v_ArrVal_2818 (Array Int Int)) (v_ArrVal_2814 Int) (v_ArrVal_2813 Int)) (<= 0 (+ (select (select (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~head~0#1.base| (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_123| v_ArrVal_2813)) (select (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_123| v_ArrVal_2814) (+ |c_ULTIMATE.start_dll_create_~head~0#1.offset| 4)) v_ArrVal_2818) |c_ULTIMATE.start_dll_create_~head~0#1.base|) 4) 4)))))) (<= 12 (select |c_#length| .cse0)) (= |c_ULTIMATE.start_dll_create_~head~0#1.offset| 0) (= (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~head~0#1.base|) 4) 0))) is different from false [2021-11-25 20:26:10,877 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~s~0#1.base|) 4))) (and (not (= |c_ULTIMATE.start_main_~s~0#1.base| .cse0)) (= 0 (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~s~0#1.base|) 4)) (<= 12 (select |c_#length| .cse0)) (forall ((|v_ULTIMATE.start_dll_update_at_~head#1.offset_123| Int)) (or (and (forall ((v_ArrVal_2818 (Array Int Int)) (v_ArrVal_2814 Int) (v_ArrVal_2813 Int)) (<= 0 (+ (select (select (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~s~0#1.base| (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~s~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_123| v_ArrVal_2813)) (select (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~s~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_123| v_ArrVal_2814) (+ |c_ULTIMATE.start_main_~s~0#1.offset| 4)) v_ArrVal_2818) |c_ULTIMATE.start_main_~s~0#1.base|) 4) 4))) (forall ((v_ArrVal_2818 (Array Int Int)) (v_ArrVal_2817 (Array Int Int)) (v_ArrVal_2814 Int) (v_ArrVal_2813 Int)) (let ((.cse2 (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~s~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_123| v_ArrVal_2814))) (let ((.cse1 (select .cse2 (+ |c_ULTIMATE.start_main_~s~0#1.offset| 4)))) (<= (+ (select (select (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~s~0#1.base| (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~s~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_123| v_ArrVal_2813)) .cse1 v_ArrVal_2818) |c_ULTIMATE.start_main_~s~0#1.base|) 4) 8) (select |c_#length| (select (select (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~s~0#1.base| .cse2) .cse1 v_ArrVal_2817) |c_ULTIMATE.start_main_~s~0#1.base|) 4))))))) (< |c_ULTIMATE.start_main_~s~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_123|))) (= |c_ULTIMATE.start_main_~s~0#1.offset| 0))) is different from false [2021-11-25 20:26:11,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:26:11,968 INFO L93 Difference]: Finished difference Result 61 states and 61 transitions. [2021-11-25 20:26:11,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-11-25 20:26:11,969 INFO L78 Accepts]: Start accepts. Automaton has has 52 states, 51 states have (on average 2.372549019607843) internal successors, (121), 52 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2021-11-25 20:26:11,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:26:11,969 INFO L225 Difference]: With dead ends: 61 [2021-11-25 20:26:11,969 INFO L226 Difference]: Without dead ends: 61 [2021-11-25 20:26:11,970 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 82 SyntacticMatches, 3 SemanticMatches, 90 ConstructedPredicates, 14 IntricatePredicates, 0 DeprecatedPredicates, 1682 ImplicationChecksByTransitivity, 8.5s TimeCoverageRelationStatistics Valid=458, Invalid=5590, Unknown=14, NotChecked=2310, Total=8372 [2021-11-25 20:26:11,970 INFO L933 BasicCegarLoop]: 6 mSDtfsCounter, 160 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 869 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 1433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 869 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 520 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-25 20:26:11,970 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [160 Valid, 105 Invalid, 1433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 869 Invalid, 0 Unknown, 520 Unchecked, 0.4s Time] [2021-11-25 20:26:11,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2021-11-25 20:26:11,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 56. [2021-11-25 20:26:11,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 51 states have (on average 1.1176470588235294) internal successors, (57), 55 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:26:11,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 57 transitions. [2021-11-25 20:26:11,972 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 57 transitions. Word has length 44 [2021-11-25 20:26:11,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:26:11,972 INFO L470 AbstractCegarLoop]: Abstraction has 56 states and 57 transitions. [2021-11-25 20:26:11,972 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 52 states, 51 states have (on average 2.372549019607843) internal successors, (121), 52 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:26:11,972 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 57 transitions. [2021-11-25 20:26:11,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-11-25 20:26:11,973 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:26:11,973 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:26:12,002 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2021-11-25 20:26:12,187 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:26:12,187 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 19 more)] === [2021-11-25 20:26:12,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:26:12,188 INFO L85 PathProgramCache]: Analyzing trace with hash 814427220, now seen corresponding path program 1 times [2021-11-25 20:26:12,188 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:26:12,188 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391747757] [2021-11-25 20:26:12,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:26:12,188 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:26:12,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:26:12,390 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-25 20:26:12,390 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:26:12,390 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391747757] [2021-11-25 20:26:12,390 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1391747757] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 20:26:12,390 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1521931498] [2021-11-25 20:26:12,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:26:12,390 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:26:12,391 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:26:12,399 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:26:12,415 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2021-11-25 20:26:12,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:26:12,646 INFO L263 TraceCheckSpWp]: Trace formula consists of 403 conjuncts, 66 conjunts are in the unsatisfiable core [2021-11-25 20:26:12,649 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:26:12,654 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 20:26:12,726 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-25 20:26:12,726 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-11-25 20:26:12,771 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:26:12,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:12,807 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:26:12,837 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-25 20:26:12,838 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 34 [2021-11-25 20:26:13,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:13,015 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 23 [2021-11-25 20:26:13,111 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-25 20:26:13,112 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 28 [2021-11-25 20:26:13,232 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:26:13,232 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 22 [2021-11-25 20:26:13,273 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 2 proven. 14 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-25 20:26:13,273 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 20:26:13,359 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2946 (Array Int Int))) (not (= (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_update_at_~head#1.base| v_ArrVal_2946) |c_ULTIMATE.start_main_~s~0#1.base|) 4) 0))) is different from false [2021-11-25 20:26:13,366 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2946 (Array Int Int))) (not (= (select (select (store |c_#memory_$Pointer$.base| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_update_at_~head#1.base|) (+ |c_ULTIMATE.start_dll_update_at_~head#1.offset| 4)) v_ArrVal_2946) |c_ULTIMATE.start_main_~s~0#1.base|) 4) 0))) is different from false [2021-11-25 20:26:13,373 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2946 (Array Int Int))) (not (= (select (select (store |c_#memory_$Pointer$.base| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~s~0#1.base|) (+ |c_ULTIMATE.start_main_~s~0#1.offset| 4)) v_ArrVal_2946) |c_ULTIMATE.start_main_~s~0#1.base|) 4) 0))) is different from false [2021-11-25 20:26:13,378 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2946 (Array Int Int)) (v_ArrVal_2944 Int)) (not (= (select (select (let ((.cse0 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_update_at_~head#1.base| (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_update_at_~head#1.base|) |c_ULTIMATE.start_dll_update_at_~head#1.offset| v_ArrVal_2944)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~s~0#1.base|) (+ |c_ULTIMATE.start_main_~s~0#1.offset| 4)) v_ArrVal_2946)) |c_ULTIMATE.start_main_~s~0#1.base|) 4) 0))) is different from false [2021-11-25 20:26:13,393 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2946 (Array Int Int)) (|v_ULTIMATE.start_dll_update_at_~head#1.offset_131| Int) (v_ArrVal_2944 Int)) (or (not (= (select (select (let ((.cse0 (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~s~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_131| v_ArrVal_2944))) (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~s~0#1.base| .cse0) (select .cse0 (+ |c_ULTIMATE.start_main_~s~0#1.offset| 4)) v_ArrVal_2946)) |c_ULTIMATE.start_main_~s~0#1.base|) 4) 0)) (< |c_ULTIMATE.start_main_~s~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_131|))) is different from false [2021-11-25 20:26:13,405 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2946 (Array Int Int)) (|v_ULTIMATE.start_dll_update_at_~head#1.offset_131| Int) (v_ArrVal_2944 Int)) (or (< |c_ULTIMATE.start_dll_create_~head~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_131|) (not (= (select (select (let ((.cse0 (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_131| v_ArrVal_2944))) (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base| .cse0) (select .cse0 (+ |c_ULTIMATE.start_dll_create_~head~0#1.offset| 4)) v_ArrVal_2946)) |c_ULTIMATE.start_dll_create_~head~0#1.base|) 4) 0)))) is different from false [2021-11-25 20:26:13,415 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2946 (Array Int Int)) (|v_ULTIMATE.start_dll_update_at_~head#1.offset_131| Int) (v_ArrVal_2944 Int)) (or (< |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_131|) (not (= (select (select (let ((.cse0 (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_131| v_ArrVal_2944))) (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| .cse0) (select .cse0 (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 4)) v_ArrVal_2946)) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) 4) 0)))) is different from false [2021-11-25 20:26:13,428 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2946 (Array Int Int)) (v_ArrVal_2942 (Array Int Int)) (|v_ULTIMATE.start_dll_update_at_~head#1.offset_131| Int) (v_ArrVal_2944 Int)) (or (not (= (select (select (let ((.cse0 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_2942))) (let ((.cse1 (store (select .cse0 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_131| v_ArrVal_2944))) (store (store .cse0 |c_ULTIMATE.start_dll_create_~new_head~0#1.base| .cse1) (select .cse1 (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 4)) v_ArrVal_2946))) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) 4) 0)) (< |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_131|))) is different from false [2021-11-25 20:26:13,450 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2946 (Array Int Int)) (v_ArrVal_2942 (Array Int Int)) (|v_ULTIMATE.start_dll_update_at_~head#1.offset_131| Int) (v_ArrVal_2940 Int) (v_ArrVal_2944 Int)) (or (< |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_131|) (not (= (select (select (let ((.cse0 (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 8) v_ArrVal_2940)) |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_2942))) (let ((.cse1 (store (select .cse0 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_131| v_ArrVal_2944))) (store (store .cse0 |c_ULTIMATE.start_dll_create_~new_head~0#1.base| .cse1) (select .cse1 (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 4)) v_ArrVal_2946))) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) 4) 0)))) is different from false [2021-11-25 20:26:13,456 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:26:13,460 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:26:13,460 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 82 treesize of output 58 [2021-11-25 20:26:13,463 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 105 treesize of output 97 [2021-11-25 20:26:13,465 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:26:13,471 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:26:13,472 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 102 treesize of output 98 [2021-11-25 20:26:13,474 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:26:13,481 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:26:13,481 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 88 treesize of output 89 [2021-11-25 20:26:13,486 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 78 treesize of output 74 [2021-11-25 20:26:13,734 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 11 not checked. [2021-11-25 20:26:13,734 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1521931498] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 20:26:13,734 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [533725419] [2021-11-25 20:26:13,736 INFO L159 IcfgInterpreter]: Started Sifa with 25 locations of interest [2021-11-25 20:26:13,736 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 20:26:13,736 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 20:26:13,737 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 20:26:13,737 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 20:26:13,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:13,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:13,765 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2021-11-25 20:26:13,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:13,785 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2021-11-25 20:26:13,793 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:26:13,798 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:26:13,813 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:26:13,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:13,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:13,822 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 31 [2021-11-25 20:26:13,831 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:26:13,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:13,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:13,847 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 31 [2021-11-25 20:26:13,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:13,854 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:26:13,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:13,865 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:26:13,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:13,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:13,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:13,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:13,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:13,911 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 35 [2021-11-25 20:26:13,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:13,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:13,946 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-25 20:26:13,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:13,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:13,958 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-25 20:26:13,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:13,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:13,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:13,973 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2021-11-25 20:26:13,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:13,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:13,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:13,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:13,996 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-25 20:26:14,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:14,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:14,013 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2021-11-25 20:26:14,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:14,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:14,025 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2021-11-25 20:26:14,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:14,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:14,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:14,048 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2021-11-25 20:26:14,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:14,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:14,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:14,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:14,061 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-25 20:26:14,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:14,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:14,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:14,075 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2021-11-25 20:26:14,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:14,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:14,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:14,119 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 49 [2021-11-25 20:26:14,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:14,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:14,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:14,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:14,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:14,135 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-25 20:26:14,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:14,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:14,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:14,150 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 49 [2021-11-25 20:26:14,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:14,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:14,334 INFO L354 Elim1Store]: treesize reduction 34, result has 41.4 percent of original size [2021-11-25 20:26:14,334 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 29 treesize of output 43 [2021-11-25 20:26:14,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:14,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:14,376 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-25 20:26:14,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:14,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:14,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:14,390 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2021-11-25 20:26:14,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:14,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:14,403 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-25 20:26:14,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:14,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:14,432 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2021-11-25 20:26:14,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:14,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:14,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:14,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:14,443 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-25 20:26:14,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:14,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:14,458 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2021-11-25 20:26:14,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:14,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:14,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:14,489 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2021-11-25 20:26:14,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:14,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:14,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:14,500 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2021-11-25 20:26:14,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:14,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:14,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:14,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:14,515 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-25 20:26:14,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:14,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:14,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:14,563 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 49 [2021-11-25 20:26:14,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:14,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:14,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:14,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:14,578 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-25 20:26:14,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:14,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:14,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:14,590 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 49 [2021-11-25 20:26:14,620 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-25 20:26:14,625 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 20:26:14,640 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:26:14,645 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:26:14,652 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:26:14,662 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:26:14,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:14,669 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:26:14,676 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:26:14,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:14,688 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:26:14,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:14,694 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:26:14,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:14,704 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:26:14,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:14,727 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:26:14,734 INFO L354 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2021-11-25 20:26:14,734 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 34 [2021-11-25 20:26:14,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:14,742 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:26:14,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:14,750 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:26:14,760 INFO L354 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2021-11-25 20:26:14,763 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 38 [2021-11-25 20:26:14,813 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 20:26:14,818 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-25 20:26:14,832 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:26:14,838 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:26:14,843 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:26:14,856 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:26:14,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:14,865 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:26:14,870 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:26:14,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:14,882 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:26:14,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:14,891 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:26:14,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:14,897 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:26:14,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:14,919 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:26:14,929 INFO L354 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2021-11-25 20:26:14,929 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 38 [2021-11-25 20:26:14,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:14,947 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:26:14,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:14,957 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:26:14,965 INFO L354 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2021-11-25 20:26:14,965 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 34 [2021-11-25 20:26:15,073 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:26:15,084 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:26:15,093 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:26:15,166 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:26:15,201 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:26:15,216 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:26:15,343 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:26:15,350 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:26:15,358 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:26:15,773 INFO L354 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2021-11-25 20:26:15,773 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 183 treesize of output 187 [2021-11-25 20:26:15,939 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 13 [2021-11-25 20:26:16,053 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 13 [2021-11-25 20:26:16,175 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 20:26:16,181 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-25 20:26:16,196 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:26:16,201 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:26:16,206 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:26:16,219 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:26:16,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:16,225 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:26:16,233 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:26:16,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:16,247 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:26:16,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:16,254 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-25 20:26:16,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:16,259 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:26:16,299 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-25 20:26:20,056 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '10004#(and (<= |ULTIMATE.start_main_~expected~0#1| 2147483647) (<= 0 |ULTIMATE.start_main_~s~0#1.offset|) (<= |ULTIMATE.start_dll_get_data_at_#in~head#1.offset| 0) (<= 1 |ULTIMATE.start_dll_create_~data#1|) (<= 0 |ULTIMATE.start_dll_destroy_#in~head#1.offset|) (<= 2 |ULTIMATE.start_dll_create_#in~len#1|) (<= |ULTIMATE.start_dll_create_#res#1.offset| 0) (not (= |ULTIMATE.start_main_old_#valid#1| |#valid|)) (<= 0 |ULTIMATE.start_dll_get_data_at_~head#1.offset|) (= |ULTIMATE.start_dll_destroy_~head#1.offset| 0) (<= |ULTIMATE.start_dll_get_data_at_~index#1| 0) (<= |ULTIMATE.start_dll_get_data_at_#res#1| 2147483647) (<= |ULTIMATE.start_dll_create_~data#1| 1) (<= 0 (+ |ULTIMATE.start_dll_create_~len#1| 1)) (<= 2 |ULTIMATE.start_main_~i~0#1|) (= |ULTIMATE.start_main_~data~0#1| 1) (<= 0 |ULTIMATE.start_dll_get_data_at_#in~head#1.offset|) (<= 2 |ULTIMATE.start_dll_get_data_at_#res#1|) (<= |ULTIMATE.start_dll_create_#in~len#1| 2) (<= |ULTIMATE.start_dll_destroy_#in~head#1.offset| 0) (<= 0 |ULTIMATE.start_dll_get_data_at_#in~index#1|) (<= |ULTIMATE.start_dll_create_~len#1| 0) (<= 1 |ULTIMATE.start_dll_create_#in~data#1|) (= |ULTIMATE.start_main_~len~0#1| 2) (= |ULTIMATE.start_dll_destroy_~head#1.base| 0) (= |#NULL.offset| 0) (<= |ULTIMATE.start_dll_create_#in~data#1| 1) (<= |ULTIMATE.start_dll_create_~head~0#1.offset| 0) (<= 0 |ULTIMATE.start_dll_create_~head~0#1.offset|) (<= 2 |ULTIMATE.start_main_~expected~0#1|) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~s~0#1.offset| 0) (<= 0 |ULTIMATE.start_dll_create_#res#1.offset|) (= |ULTIMATE.start_main_#res#1| 0) (= |#NULL.base| 0))' at error location [2021-11-25 20:26:20,057 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-25 20:26:20,057 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-25 20:26:20,057 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 17, 19] total 39 [2021-11-25 20:26:20,057 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832739312] [2021-11-25 20:26:20,057 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-25 20:26:20,057 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2021-11-25 20:26:20,057 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:26:20,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2021-11-25 20:26:20,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=241, Invalid=2542, Unknown=9, NotChecked=990, Total=3782 [2021-11-25 20:26:20,058 INFO L87 Difference]: Start difference. First operand 56 states and 57 transitions. Second operand has 39 states, 39 states have (on average 2.6666666666666665) internal successors, (104), 39 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:26:20,285 WARN L838 $PredicateComparison]: unable to prove that (and (= |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 0) (= |c_ULTIMATE.start_dll_create_~head~0#1.base| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 4))) (not (= |c_ULTIMATE.start_dll_create_~head~0#1.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|)) (not (= |c_ULTIMATE.start_dll_create_~head~0#1.base| 0)) (= (select |c_#valid| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) 1) (= (select |c_#valid| 0) 0) (not (= |c_ULTIMATE.start_dll_create_~new_head~0#1.base| 0)) (= |c_ULTIMATE.start_dll_create_~head~0#1.offset| 0) (forall ((v_ArrVal_2946 (Array Int Int)) (v_ArrVal_2942 (Array Int Int)) (|v_ULTIMATE.start_dll_update_at_~head#1.offset_131| Int) (v_ArrVal_2944 Int)) (or (not (= (select (select (let ((.cse0 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_2942))) (let ((.cse1 (store (select .cse0 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_131| v_ArrVal_2944))) (store (store .cse0 |c_ULTIMATE.start_dll_create_~new_head~0#1.base| .cse1) (select .cse1 (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 4)) v_ArrVal_2946))) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) 4) 0)) (< |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_131|)))) is different from false [2021-11-25 20:26:20,288 WARN L838 $PredicateComparison]: unable to prove that (and (= |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 0) (= |c_ULTIMATE.start_dll_create_~head~0#1.base| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 4))) (not (= |c_ULTIMATE.start_dll_create_~head~0#1.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|)) (not (= |c_ULTIMATE.start_dll_create_~head~0#1.base| 0)) (= (select |c_#valid| 0) 0) (forall ((v_ArrVal_2946 (Array Int Int)) (v_ArrVal_2942 (Array Int Int)) (|v_ULTIMATE.start_dll_update_at_~head#1.offset_131| Int) (v_ArrVal_2944 Int)) (or (not (= (select (select (let ((.cse0 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_2942))) (let ((.cse1 (store (select .cse0 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_131| v_ArrVal_2944))) (store (store .cse0 |c_ULTIMATE.start_dll_create_~new_head~0#1.base| .cse1) (select .cse1 (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 4)) v_ArrVal_2946))) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) 4) 0)) (< |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_131|)))) is different from false [2021-11-25 20:26:20,291 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 4)))) (and (= |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 0) (not (= .cse0 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|)) (forall ((v_ArrVal_2946 (Array Int Int)) (|v_ULTIMATE.start_dll_update_at_~head#1.offset_131| Int) (v_ArrVal_2944 Int)) (or (< |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_131|) (not (= (select (select (let ((.cse1 (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_131| v_ArrVal_2944))) (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| .cse1) (select .cse1 (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 4)) v_ArrVal_2946)) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) 4) 0)))) (not (= .cse0 0)) (= (select |c_#valid| 0) 0))) is different from false [2021-11-25 20:26:20,293 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base|) 4))) (and (not (= |c_ULTIMATE.start_dll_create_~head~0#1.base| .cse0)) (not (= .cse0 0)) (forall ((v_ArrVal_2946 (Array Int Int)) (|v_ULTIMATE.start_dll_update_at_~head#1.offset_131| Int) (v_ArrVal_2944 Int)) (or (< |c_ULTIMATE.start_dll_create_~head~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_131|) (not (= (select (select (let ((.cse1 (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_131| v_ArrVal_2944))) (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base| .cse1) (select .cse1 (+ |c_ULTIMATE.start_dll_create_~head~0#1.offset| 4)) v_ArrVal_2946)) |c_ULTIMATE.start_dll_create_~head~0#1.base|) 4) 0)))) (= (select |c_#valid| 0) 0) (= |c_ULTIMATE.start_dll_create_~head~0#1.offset| 0))) is different from false [2021-11-25 20:26:20,296 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~s~0#1.base|) 4))) (and (not (= 0 .cse0)) (not (= |c_ULTIMATE.start_main_~s~0#1.base| .cse0)) (= (select |c_#valid| 0) 0) (forall ((v_ArrVal_2946 (Array Int Int)) (|v_ULTIMATE.start_dll_update_at_~head#1.offset_131| Int) (v_ArrVal_2944 Int)) (or (not (= (select (select (let ((.cse1 (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~s~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_131| v_ArrVal_2944))) (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~s~0#1.base| .cse1) (select .cse1 (+ |c_ULTIMATE.start_main_~s~0#1.offset| 4)) v_ArrVal_2946)) |c_ULTIMATE.start_main_~s~0#1.base|) 4) 0)) (< |c_ULTIMATE.start_main_~s~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_131|))) (= |c_ULTIMATE.start_main_~s~0#1.offset| 0))) is different from false [2021-11-25 20:26:20,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:26:20,997 INFO L93 Difference]: Finished difference Result 56 states and 56 transitions. [2021-11-25 20:26:20,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-11-25 20:26:20,998 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 39 states have (on average 2.6666666666666665) internal successors, (104), 39 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2021-11-25 20:26:20,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:26:20,998 INFO L225 Difference]: With dead ends: 56 [2021-11-25 20:26:20,998 INFO L226 Difference]: Without dead ends: 56 [2021-11-25 20:26:20,999 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 85 SyntacticMatches, 2 SemanticMatches, 82 ConstructedPredicates, 14 IntricatePredicates, 0 DeprecatedPredicates, 1227 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=468, Invalid=4403, Unknown=15, NotChecked=2086, Total=6972 [2021-11-25 20:26:20,999 INFO L933 BasicCegarLoop]: 4 mSDtfsCounter, 164 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 971 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 454 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-25 20:26:20,999 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [164 Valid, 66 Invalid, 971 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 483 Invalid, 0 Unknown, 454 Unchecked, 0.2s Time] [2021-11-25 20:26:20,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2021-11-25 20:26:21,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2021-11-25 20:26:21,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 51 states have (on average 1.0980392156862746) internal successors, (56), 55 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:26:21,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 56 transitions. [2021-11-25 20:26:21,001 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 56 transitions. Word has length 44 [2021-11-25 20:26:21,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:26:21,002 INFO L470 AbstractCegarLoop]: Abstraction has 56 states and 56 transitions. [2021-11-25 20:26:21,002 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 39 states have (on average 2.6666666666666665) internal successors, (104), 39 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:26:21,002 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 56 transitions. [2021-11-25 20:26:21,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-11-25 20:26:21,003 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:26:21,003 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:26:21,033 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2021-11-25 20:26:21,219 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2021-11-25 20:26:21,219 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 19 more)] === [2021-11-25 20:26:21,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:26:21,220 INFO L85 PathProgramCache]: Analyzing trace with hash 979298371, now seen corresponding path program 1 times [2021-11-25 20:26:21,220 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:26:21,220 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417747070] [2021-11-25 20:26:21,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:26:21,221 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:26:21,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:26:21,594 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 18 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-25 20:26:21,594 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:26:21,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1417747070] [2021-11-25 20:26:21,594 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1417747070] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 20:26:21,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1626304888] [2021-11-25 20:26:21,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:26:21,595 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:26:21,595 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:26:21,595 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:26:21,600 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2021-11-25 20:26:21,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:26:21,828 INFO L263 TraceCheckSpWp]: Trace formula consists of 408 conjuncts, 57 conjunts are in the unsatisfiable core [2021-11-25 20:26:21,831 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:26:21,838 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 20:26:21,907 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-25 20:26:21,907 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-11-25 20:26:21,935 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:26:21,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:21,977 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:26:22,006 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-25 20:26:22,006 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 35 [2021-11-25 20:26:22,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:22,105 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 24 [2021-11-25 20:26:22,212 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-25 20:26:22,213 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 29 [2021-11-25 20:26:22,313 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:26:22,313 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 23 [2021-11-25 20:26:22,362 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 2 proven. 17 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-25 20:26:22,362 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 20:26:22,457 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_3073 (Array Int Int))) (<= (+ (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_update_at_~head#1.base| v_ArrVal_3073) |c_ULTIMATE.start_main_~s~0#1.base|) 4) 1) |c_#StackHeapBarrier|)) is different from false [2021-11-25 20:26:22,464 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_3073 (Array Int Int))) (<= (+ (select (select (store |c_#memory_$Pointer$.base| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_update_at_~head#1.base|) (+ |c_ULTIMATE.start_dll_update_at_~head#1.offset| 4)) v_ArrVal_3073) |c_ULTIMATE.start_main_~s~0#1.base|) 4) 1) |c_#StackHeapBarrier|)) is different from false [2021-11-25 20:26:22,472 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_3073 (Array Int Int))) (<= (+ (select (select (store |c_#memory_$Pointer$.base| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~s~0#1.base|) (+ |c_ULTIMATE.start_main_~s~0#1.offset| 4)) v_ArrVal_3073) |c_ULTIMATE.start_main_~s~0#1.base|) 4) 1) |c_#StackHeapBarrier|)) is different from false [2021-11-25 20:26:22,477 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_3072 Int) (v_ArrVal_3073 (Array Int Int))) (<= (+ (select (select (let ((.cse0 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_update_at_~head#1.base| (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_update_at_~head#1.base|) |c_ULTIMATE.start_dll_update_at_~head#1.offset| v_ArrVal_3072)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~s~0#1.base|) (+ |c_ULTIMATE.start_main_~s~0#1.offset| 4)) v_ArrVal_3073)) |c_ULTIMATE.start_main_~s~0#1.base|) 4) 1) |c_#StackHeapBarrier|)) is different from false [2021-11-25 20:26:22,492 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_3072 Int) (|v_ULTIMATE.start_dll_update_at_~head#1.offset_139| Int) (v_ArrVal_3073 (Array Int Int))) (or (< |c_ULTIMATE.start_main_~s~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_139|) (<= (+ (select (select (let ((.cse0 (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~s~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_139| v_ArrVal_3072))) (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~s~0#1.base| .cse0) (select .cse0 (+ |c_ULTIMATE.start_main_~s~0#1.offset| 4)) v_ArrVal_3073)) |c_ULTIMATE.start_main_~s~0#1.base|) 4) 1) |c_#StackHeapBarrier|))) is different from false [2021-11-25 20:26:22,504 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_3072 Int) (|v_ULTIMATE.start_dll_update_at_~head#1.offset_139| Int) (v_ArrVal_3073 (Array Int Int))) (or (< |c_ULTIMATE.start_dll_create_~head~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_139|) (<= (+ (select (select (let ((.cse0 (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_139| v_ArrVal_3072))) (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base| .cse0) (select .cse0 (+ |c_ULTIMATE.start_dll_create_~head~0#1.offset| 4)) v_ArrVal_3073)) |c_ULTIMATE.start_dll_create_~head~0#1.base|) 4) 1) |c_#StackHeapBarrier|))) is different from false [2021-11-25 20:26:22,516 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_3072 Int) (|v_ULTIMATE.start_dll_update_at_~head#1.offset_139| Int) (v_ArrVal_3073 (Array Int Int))) (or (<= (+ (select (select (let ((.cse0 (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_139| v_ArrVal_3072))) (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| .cse0) (select .cse0 (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 4)) v_ArrVal_3073)) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) 4) 1) |c_#StackHeapBarrier|) (< |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_139|))) is different from false [2021-11-25 20:26:22,528 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_3072 Int) (v_ArrVal_3070 (Array Int Int)) (|v_ULTIMATE.start_dll_update_at_~head#1.offset_139| Int) (v_ArrVal_3073 (Array Int Int))) (or (<= (+ (select (select (let ((.cse0 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_3070))) (let ((.cse1 (store (select .cse0 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_139| v_ArrVal_3072))) (store (store .cse0 |c_ULTIMATE.start_dll_create_~new_head~0#1.base| .cse1) (select .cse1 (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 4)) v_ArrVal_3073))) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) 4) 1) |c_#StackHeapBarrier|) (< |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_139|))) is different from false [2021-11-25 20:26:22,551 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_3072 Int) (v_ArrVal_3069 Int) (v_ArrVal_3070 (Array Int Int)) (|v_ULTIMATE.start_dll_update_at_~head#1.offset_139| Int) (v_ArrVal_3073 (Array Int Int))) (or (<= (+ (select (select (let ((.cse0 (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 8) v_ArrVal_3069)) |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_3070))) (let ((.cse1 (store (select .cse0 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_139| v_ArrVal_3072))) (store (store .cse0 |c_ULTIMATE.start_dll_create_~new_head~0#1.base| .cse1) (select .cse1 (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 4)) v_ArrVal_3073))) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) 4) 1) |c_#StackHeapBarrier|) (< |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_139|))) is different from false [2021-11-25 20:26:22,557 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:26:22,562 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:26:22,562 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 83 treesize of output 59 [2021-11-25 20:26:22,574 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 100 [2021-11-25 20:26:22,577 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:26:22,584 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:26:22,585 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 52 [2021-11-25 20:26:22,587 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:26:22,594 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:26:22,594 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 61 treesize of output 57 [2021-11-25 20:26:22,599 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 84 treesize of output 80 [2021-11-25 20:26:23,008 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 8 trivial. 11 not checked. [2021-11-25 20:26:23,008 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1626304888] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 20:26:23,008 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [841795232] [2021-11-25 20:26:23,009 INFO L159 IcfgInterpreter]: Started Sifa with 24 locations of interest [2021-11-25 20:26:23,009 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 20:26:23,009 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 20:26:23,010 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 20:26:23,010 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 20:26:23,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:23,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:23,040 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2021-11-25 20:26:23,058 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:26:23,063 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:26:23,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:23,071 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2021-11-25 20:26:23,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:23,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:23,091 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 31 [2021-11-25 20:26:23,097 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:26:23,126 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:26:23,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:23,140 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:26:23,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:23,152 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:26:23,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:23,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:23,160 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 31 [2021-11-25 20:26:23,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:23,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:23,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:23,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:23,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:23,239 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 35 [2021-11-25 20:26:23,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:23,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:23,280 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-25 20:26:23,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:23,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:23,289 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-25 20:26:23,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:23,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:23,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:23,301 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2021-11-25 20:26:23,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:23,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:23,329 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2021-11-25 20:26:23,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:23,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:23,343 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2021-11-25 20:26:23,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:23,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:23,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:23,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:23,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:23,356 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-25 20:26:23,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:23,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:23,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:23,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:23,379 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-25 20:26:23,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:23,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:23,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:23,392 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2021-11-25 20:26:23,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:23,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:23,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:23,404 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2021-11-25 20:26:23,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:23,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:23,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:23,445 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 49 [2021-11-25 20:26:23,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:23,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:23,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:23,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:23,457 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-25 20:26:23,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:23,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:23,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:23,469 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 49 [2021-11-25 20:26:23,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:23,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:23,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:23,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:23,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:23,620 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 35 [2021-11-25 20:26:23,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:23,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:23,657 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-25 20:26:23,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:23,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:23,667 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2021-11-25 20:26:23,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:23,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:23,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:23,682 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2021-11-25 20:26:23,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:23,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:23,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:23,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:23,705 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-25 20:26:23,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:23,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:23,715 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2021-11-25 20:26:23,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:23,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:23,732 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2021-11-25 20:26:23,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:23,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:23,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:23,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:23,755 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-25 20:26:23,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:23,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:23,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:23,766 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2021-11-25 20:26:23,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:23,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:23,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:23,785 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2021-11-25 20:26:23,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:23,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:23,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:23,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:23,821 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2021-11-25 20:26:23,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:23,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:23,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:23,835 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 49 [2021-11-25 20:26:23,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:23,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:23,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:23,850 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 49 [2021-11-25 20:26:24,045 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:26:24,055 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:26:24,063 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:26:24,171 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:26:24,180 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:26:24,189 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:26:24,285 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:26:24,291 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:26:24,301 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:26:25,122 INFO L354 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2021-11-25 20:26:25,123 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 178 treesize of output 182 [2021-11-25 20:26:25,284 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 13 [2021-11-25 20:26:25,365 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 13 [2021-11-25 20:26:25,682 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-25 20:26:25,687 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 20:26:25,708 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:26:25,718 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:26:25,723 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:26:25,747 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:26:25,753 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:26:25,764 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:26:25,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:25,780 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:26:25,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:25,787 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:26:25,794 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:26:25,810 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-25 20:26:29,801 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '10496#(and (<= |ULTIMATE.start_main_~expected~0#1| 2147483647) (<= 0 |ULTIMATE.start_main_~s~0#1.offset|) (<= |ULTIMATE.start_dll_get_data_at_#in~head#1.offset| 0) (<= 1 |ULTIMATE.start_dll_create_~data#1|) (<= 0 |ULTIMATE.start_dll_destroy_#in~head#1.offset|) (<= 2 |ULTIMATE.start_dll_create_#in~len#1|) (<= |ULTIMATE.start_dll_create_#res#1.offset| 0) (<= 0 |ULTIMATE.start_dll_get_data_at_~head#1.offset|) (= |ULTIMATE.start_dll_destroy_~head#1.offset| 0) (<= |ULTIMATE.start_dll_get_data_at_~index#1| 0) (<= |ULTIMATE.start_dll_get_data_at_#res#1| 2147483647) (<= |ULTIMATE.start_dll_create_~data#1| 1) (<= |#StackHeapBarrier| |ULTIMATE.start_dll_destroy_~head#1.base|) (<= 2 |ULTIMATE.start_main_~i~0#1|) (= |ULTIMATE.start_main_~data~0#1| 1) (<= 0 |ULTIMATE.start_dll_get_data_at_#in~head#1.offset|) (<= 0 |ULTIMATE.start_dll_create_~len#1|) (<= 2 |ULTIMATE.start_dll_get_data_at_#res#1|) (<= |ULTIMATE.start_dll_create_#in~len#1| 2) (<= |ULTIMATE.start_dll_destroy_#in~head#1.offset| 0) (<= 0 |ULTIMATE.start_dll_get_data_at_#in~index#1|) (<= |ULTIMATE.start_dll_create_~len#1| 0) (<= 1 |ULTIMATE.start_dll_create_#in~data#1|) (= |ULTIMATE.start_main_~len~0#1| 2) (= |#NULL.offset| 0) (<= |ULTIMATE.start_dll_create_#in~data#1| 1) (<= |ULTIMATE.start_dll_create_~head~0#1.offset| 0) (<= 0 |ULTIMATE.start_dll_create_~head~0#1.offset|) (<= 2 |ULTIMATE.start_main_~expected~0#1|) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~s~0#1.offset| 0) (<= 0 |ULTIMATE.start_dll_create_#res#1.offset|) (= |#NULL.base| 0))' at error location [2021-11-25 20:26:29,801 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-25 20:26:29,801 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-25 20:26:29,801 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 16, 18] total 39 [2021-11-25 20:26:29,802 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385814427] [2021-11-25 20:26:29,802 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-25 20:26:29,802 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2021-11-25 20:26:29,802 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:26:29,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2021-11-25 20:26:29,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=225, Invalid=2558, Unknown=9, NotChecked=990, Total=3782 [2021-11-25 20:26:29,803 INFO L87 Difference]: Start difference. First operand 56 states and 56 transitions. Second operand has 40 states, 39 states have (on average 2.6923076923076925) internal successors, (105), 40 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:26:30,000 WARN L838 $PredicateComparison]: unable to prove that (and (= |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 0) (<= (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.base| 1) |c_#StackHeapBarrier|) (= |c_ULTIMATE.start_dll_create_~head~0#1.base| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 4))) (not (= |c_ULTIMATE.start_dll_create_~head~0#1.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|)) (forall ((v_ArrVal_3072 Int) (v_ArrVal_3070 (Array Int Int)) (|v_ULTIMATE.start_dll_update_at_~head#1.offset_139| Int) (v_ArrVal_3073 (Array Int Int))) (or (<= (+ (select (select (let ((.cse0 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_3070))) (let ((.cse1 (store (select .cse0 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_139| v_ArrVal_3072))) (store (store .cse0 |c_ULTIMATE.start_dll_create_~new_head~0#1.base| .cse1) (select .cse1 (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 4)) v_ArrVal_3073))) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) 4) 1) |c_#StackHeapBarrier|) (< |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_139|))) (= (select |c_#valid| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) 1) (<= (+ |c_ULTIMATE.start_dll_create_~head~0#1.base| 1) |c_#StackHeapBarrier|)) is different from false [2021-11-25 20:26:30,003 WARN L838 $PredicateComparison]: unable to prove that (and (= |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 0) (= |c_ULTIMATE.start_dll_create_~head~0#1.base| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 4))) (not (= |c_ULTIMATE.start_dll_create_~head~0#1.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|)) (forall ((v_ArrVal_3072 Int) (v_ArrVal_3070 (Array Int Int)) (|v_ULTIMATE.start_dll_update_at_~head#1.offset_139| Int) (v_ArrVal_3073 (Array Int Int))) (or (<= (+ (select (select (let ((.cse0 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_3070))) (let ((.cse1 (store (select .cse0 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_139| v_ArrVal_3072))) (store (store .cse0 |c_ULTIMATE.start_dll_create_~new_head~0#1.base| .cse1) (select .cse1 (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 4)) v_ArrVal_3073))) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) 4) 1) |c_#StackHeapBarrier|) (< |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_139|))) (<= (+ |c_ULTIMATE.start_dll_create_~head~0#1.base| 1) |c_#StackHeapBarrier|)) is different from false [2021-11-25 20:26:30,009 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 4)))) (and (= |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 0) (not (= .cse0 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|)) (<= (+ .cse0 1) |c_#StackHeapBarrier|) (forall ((v_ArrVal_3072 Int) (|v_ULTIMATE.start_dll_update_at_~head#1.offset_139| Int) (v_ArrVal_3073 (Array Int Int))) (or (<= (+ (select (select (let ((.cse1 (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_139| v_ArrVal_3072))) (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| .cse1) (select .cse1 (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 4)) v_ArrVal_3073)) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) 4) 1) |c_#StackHeapBarrier|) (< |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_139|))))) is different from false [2021-11-25 20:26:30,012 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base|) 4))) (and (not (= |c_ULTIMATE.start_dll_create_~head~0#1.base| .cse0)) (forall ((v_ArrVal_3072 Int) (|v_ULTIMATE.start_dll_update_at_~head#1.offset_139| Int) (v_ArrVal_3073 (Array Int Int))) (or (< |c_ULTIMATE.start_dll_create_~head~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_139|) (<= (+ (select (select (let ((.cse1 (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_139| v_ArrVal_3072))) (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base| .cse1) (select .cse1 (+ |c_ULTIMATE.start_dll_create_~head~0#1.offset| 4)) v_ArrVal_3073)) |c_ULTIMATE.start_dll_create_~head~0#1.base|) 4) 1) |c_#StackHeapBarrier|))) (<= (+ .cse0 1) |c_#StackHeapBarrier|) (= |c_ULTIMATE.start_dll_create_~head~0#1.offset| 0))) is different from false [2021-11-25 20:26:30,014 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~s~0#1.base|) 4))) (and (not (= |c_ULTIMATE.start_main_~s~0#1.base| .cse0)) (forall ((v_ArrVal_3072 Int) (|v_ULTIMATE.start_dll_update_at_~head#1.offset_139| Int) (v_ArrVal_3073 (Array Int Int))) (or (< |c_ULTIMATE.start_main_~s~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_139|) (<= (+ (select (select (let ((.cse1 (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~s~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_139| v_ArrVal_3072))) (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~s~0#1.base| .cse1) (select .cse1 (+ |c_ULTIMATE.start_main_~s~0#1.offset| 4)) v_ArrVal_3073)) |c_ULTIMATE.start_main_~s~0#1.base|) 4) 1) |c_#StackHeapBarrier|))) (<= (+ 1 .cse0) |c_#StackHeapBarrier|) (= |c_ULTIMATE.start_main_~s~0#1.offset| 0))) is different from false [2021-11-25 20:26:30,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:26:30,641 INFO L93 Difference]: Finished difference Result 57 states and 57 transitions. [2021-11-25 20:26:30,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-11-25 20:26:30,642 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 39 states have (on average 2.6923076923076925) internal successors, (105), 40 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2021-11-25 20:26:30,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:26:30,643 INFO L225 Difference]: With dead ends: 57 [2021-11-25 20:26:30,643 INFO L226 Difference]: Without dead ends: 57 [2021-11-25 20:26:30,644 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 95 SyntacticMatches, 5 SemanticMatches, 77 ConstructedPredicates, 14 IntricatePredicates, 0 DeprecatedPredicates, 1099 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=379, Invalid=3823, Unknown=14, NotChecked=1946, Total=6162 [2021-11-25 20:26:30,644 INFO L933 BasicCegarLoop]: 9 mSDtfsCounter, 133 mSDsluCounter, 214 mSDsCounter, 0 mSdLazyCounter, 550 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 1059 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 550 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 473 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-25 20:26:30,644 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [133 Valid, 121 Invalid, 1059 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 550 Invalid, 0 Unknown, 473 Unchecked, 0.3s Time] [2021-11-25 20:26:30,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2021-11-25 20:26:30,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2021-11-25 20:26:30,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 52 states have (on average 1.0961538461538463) internal successors, (57), 56 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:26:30,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 57 transitions. [2021-11-25 20:26:30,646 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 57 transitions. Word has length 46 [2021-11-25 20:26:30,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:26:30,647 INFO L470 AbstractCegarLoop]: Abstraction has 57 states and 57 transitions. [2021-11-25 20:26:30,647 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 39 states have (on average 2.6923076923076925) internal successors, (105), 40 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:26:30,647 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 57 transitions. [2021-11-25 20:26:30,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-11-25 20:26:30,647 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:26:30,648 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:26:30,676 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2021-11-25 20:26:30,848 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:26:30,848 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr16REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 19 more)] === [2021-11-25 20:26:30,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:26:30,849 INFO L85 PathProgramCache]: Analyzing trace with hash -1434899795, now seen corresponding path program 2 times [2021-11-25 20:26:30,849 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:26:30,849 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659483048] [2021-11-25 20:26:30,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:26:30,849 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:26:30,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:26:31,618 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 3 proven. 24 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-25 20:26:31,618 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:26:31,618 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [659483048] [2021-11-25 20:26:31,618 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [659483048] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 20:26:31,619 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [130526665] [2021-11-25 20:26:31,619 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-25 20:26:31,619 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:26:31,619 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:26:31,619 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:26:31,620 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2021-11-25 20:26:31,879 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-11-25 20:26:31,879 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-25 20:26:31,882 INFO L263 TraceCheckSpWp]: Trace formula consists of 418 conjuncts, 106 conjunts are in the unsatisfiable core [2021-11-25 20:26:31,899 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:26:31,909 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 20:26:31,938 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:26:31,942 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:26:31,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:31,954 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:26:31,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:31,962 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:26:31,995 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-25 20:26:31,995 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-11-25 20:26:32,042 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2021-11-25 20:26:32,047 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2021-11-25 20:26:32,059 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-11-25 20:26:32,065 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-11-25 20:26:32,120 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-11-25 20:26:32,120 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2021-11-25 20:26:32,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:32,130 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-11-25 20:26:32,166 INFO L354 Elim1Store]: treesize reduction 45, result has 16.7 percent of original size [2021-11-25 20:26:32,166 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 83 treesize of output 52 [2021-11-25 20:26:32,169 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 42 [2021-11-25 20:26:32,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:32,368 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 36 [2021-11-25 20:26:32,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:32,381 INFO L354 Elim1Store]: treesize reduction 39, result has 15.2 percent of original size [2021-11-25 20:26:32,381 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 48 treesize of output 41 [2021-11-25 20:26:32,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:32,547 INFO L354 Elim1Store]: treesize reduction 45, result has 16.7 percent of original size [2021-11-25 20:26:32,547 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 83 treesize of output 52 [2021-11-25 20:26:32,557 INFO L354 Elim1Store]: treesize reduction 23, result has 36.1 percent of original size [2021-11-25 20:26:32,557 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 55 treesize of output 45 [2021-11-25 20:26:32,900 INFO L354 Elim1Store]: treesize reduction 33, result has 19.5 percent of original size [2021-11-25 20:26:32,901 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 67 treesize of output 38 [2021-11-25 20:26:32,907 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:26:32,907 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 20 [2021-11-25 20:26:32,947 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 3 proven. 19 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-25 20:26:32,947 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 20:26:53,185 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_dll_update_at_~head#1.offset_145| Int)) (or (< (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~s~0#1.base|) (+ |c_ULTIMATE.start_main_~s~0#1.offset| 4)) |v_ULTIMATE.start_dll_update_at_~head#1.offset_145|) (and (forall ((v_ArrVal_3223 Int) (v_ArrVal_3222 Int)) (= (select (let ((.cse1 (+ |c_ULTIMATE.start_main_~s~0#1.offset| 4))) (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~s~0#1.base|) .cse1))) (select (store |c_#memory_$Pointer$.offset| .cse0 (store (select |c_#memory_$Pointer$.offset| .cse0) |v_ULTIMATE.start_dll_update_at_~head#1.offset_145| v_ArrVal_3223)) (select (select (store |c_#memory_$Pointer$.base| .cse0 (store (select |c_#memory_$Pointer$.base| .cse0) |v_ULTIMATE.start_dll_update_at_~head#1.offset_145| v_ArrVal_3222)) |c_ULTIMATE.start_main_~s~0#1.base|) .cse1)))) 4) 0)) (forall ((v_ArrVal_3222 Int)) (= (select (let ((.cse3 (+ |c_ULTIMATE.start_main_~s~0#1.offset| 4))) (let ((.cse2 (let ((.cse4 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~s~0#1.base|) .cse3))) (store |c_#memory_$Pointer$.base| .cse4 (store (select |c_#memory_$Pointer$.base| .cse4) |v_ULTIMATE.start_dll_update_at_~head#1.offset_145| v_ArrVal_3222))))) (select .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~s~0#1.base|) .cse3)))) 4) 0))))) is different from false [2021-11-25 20:26:55,225 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_3217 Int) (|v_ULTIMATE.start_dll_update_at_~head#1.offset_145| Int)) (or (and (forall ((v_ArrVal_3219 Int) (v_ArrVal_3223 Int) (v_ArrVal_3222 Int)) (= (select (let ((.cse2 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_update_at_~head#1.base| (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_update_at_~head#1.base|) |c_ULTIMATE.start_dll_update_at_~head#1.offset| v_ArrVal_3219))) (.cse3 (+ |c_ULTIMATE.start_main_~s~0#1.offset| 4))) (let ((.cse1 (select (select .cse2 |c_ULTIMATE.start_main_~s~0#1.base|) .cse3))) (select (let ((.cse0 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_update_at_~head#1.base| (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_update_at_~head#1.base|) |c_ULTIMATE.start_dll_update_at_~head#1.offset| v_ArrVal_3217)))) (store .cse0 .cse1 (store (select .cse0 .cse1) |v_ULTIMATE.start_dll_update_at_~head#1.offset_145| v_ArrVal_3223))) (select (select (store .cse2 .cse1 (store (select .cse2 .cse1) |v_ULTIMATE.start_dll_update_at_~head#1.offset_145| v_ArrVal_3222)) |c_ULTIMATE.start_main_~s~0#1.base|) .cse3)))) 4) 0)) (forall ((v_ArrVal_3219 Int) (v_ArrVal_3222 Int)) (= (select (let ((.cse5 (+ |c_ULTIMATE.start_main_~s~0#1.offset| 4))) (let ((.cse4 (let ((.cse6 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_update_at_~head#1.base| (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_update_at_~head#1.base|) |c_ULTIMATE.start_dll_update_at_~head#1.offset| v_ArrVal_3219)))) (let ((.cse7 (select (select .cse6 |c_ULTIMATE.start_main_~s~0#1.base|) .cse5))) (store .cse6 .cse7 (store (select .cse6 .cse7) |v_ULTIMATE.start_dll_update_at_~head#1.offset_145| v_ArrVal_3222)))))) (select .cse4 (select (select .cse4 |c_ULTIMATE.start_main_~s~0#1.base|) .cse5)))) 4) 0))) (< (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_update_at_~head#1.base| (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_update_at_~head#1.base|) |c_ULTIMATE.start_dll_update_at_~head#1.offset| v_ArrVal_3217)) |c_ULTIMATE.start_main_~s~0#1.base|) (+ |c_ULTIMATE.start_main_~s~0#1.offset| 4)) |v_ULTIMATE.start_dll_update_at_~head#1.offset_145|))) is different from false [2021-11-25 20:26:57,343 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_3217 Int) (|v_ULTIMATE.start_dll_update_at_~head#1.offset_145| Int) (|v_ULTIMATE.start_dll_update_at_~head#1.offset_147| Int)) (or (< (select (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~s~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_147| v_ArrVal_3217) (+ |c_ULTIMATE.start_main_~s~0#1.offset| 4)) |v_ULTIMATE.start_dll_update_at_~head#1.offset_145|) (< |c_ULTIMATE.start_main_~s~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_147|) (and (forall ((v_ArrVal_3219 Int) (v_ArrVal_3222 Int)) (= (select (let ((.cse1 (+ |c_ULTIMATE.start_main_~s~0#1.offset| 4))) (let ((.cse0 (let ((.cse4 (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~s~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_147| v_ArrVal_3219))) (let ((.cse2 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~s~0#1.base| .cse4)) (.cse3 (select .cse4 .cse1))) (store .cse2 .cse3 (store (select .cse2 .cse3) |v_ULTIMATE.start_dll_update_at_~head#1.offset_145| v_ArrVal_3222)))))) (select .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~s~0#1.base|) .cse1)))) 4) 0)) (forall ((v_ArrVal_3219 Int) (v_ArrVal_3223 Int) (v_ArrVal_3222 Int)) (= (select (let ((.cse8 (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~s~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_147| v_ArrVal_3219)) (.cse9 (+ |c_ULTIMATE.start_main_~s~0#1.offset| 4))) (let ((.cse6 (select .cse8 .cse9))) (select (let ((.cse5 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~s~0#1.base| (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~s~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_147| v_ArrVal_3217)))) (store .cse5 .cse6 (store (select .cse5 .cse6) |v_ULTIMATE.start_dll_update_at_~head#1.offset_145| v_ArrVal_3223))) (select (select (let ((.cse7 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~s~0#1.base| .cse8))) (store .cse7 .cse6 (store (select .cse7 .cse6) |v_ULTIMATE.start_dll_update_at_~head#1.offset_145| v_ArrVal_3222))) |c_ULTIMATE.start_main_~s~0#1.base|) .cse9)))) 4) 0))))) is different from false [2021-11-25 20:26:59,451 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_3217 Int) (|v_ULTIMATE.start_dll_update_at_~head#1.offset_145| Int) (|v_ULTIMATE.start_dll_update_at_~head#1.offset_147| Int)) (or (< (select (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_147| v_ArrVal_3217) (+ |c_ULTIMATE.start_dll_create_~head~0#1.offset| 4)) |v_ULTIMATE.start_dll_update_at_~head#1.offset_145|) (< |c_ULTIMATE.start_dll_create_~head~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_147|) (and (forall ((v_ArrVal_3219 Int) (v_ArrVal_3222 Int)) (= (select (let ((.cse1 (+ |c_ULTIMATE.start_dll_create_~head~0#1.offset| 4))) (let ((.cse0 (let ((.cse4 (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_147| v_ArrVal_3219))) (let ((.cse2 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base| .cse4)) (.cse3 (select .cse4 .cse1))) (store .cse2 .cse3 (store (select .cse2 .cse3) |v_ULTIMATE.start_dll_update_at_~head#1.offset_145| v_ArrVal_3222)))))) (select .cse0 (select (select .cse0 |c_ULTIMATE.start_dll_create_~head~0#1.base|) .cse1)))) 4) 0)) (forall ((v_ArrVal_3219 Int) (v_ArrVal_3223 Int) (v_ArrVal_3222 Int)) (= (select (let ((.cse8 (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_147| v_ArrVal_3219)) (.cse9 (+ |c_ULTIMATE.start_dll_create_~head~0#1.offset| 4))) (let ((.cse6 (select .cse8 .cse9))) (select (let ((.cse5 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~head~0#1.base| (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_147| v_ArrVal_3217)))) (store .cse5 .cse6 (store (select .cse5 .cse6) |v_ULTIMATE.start_dll_update_at_~head#1.offset_145| v_ArrVal_3223))) (select (select (let ((.cse7 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base| .cse8))) (store .cse7 .cse6 (store (select .cse7 .cse6) |v_ULTIMATE.start_dll_update_at_~head#1.offset_145| v_ArrVal_3222))) |c_ULTIMATE.start_dll_create_~head~0#1.base|) .cse9)))) 4) 0))))) is different from false [2021-11-25 20:27:01,557 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_3217 Int) (|v_ULTIMATE.start_dll_update_at_~head#1.offset_145| Int) (|v_ULTIMATE.start_dll_update_at_~head#1.offset_147| Int)) (or (< (select (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_147| v_ArrVal_3217) (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 4)) |v_ULTIMATE.start_dll_update_at_~head#1.offset_145|) (< |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_147|) (and (forall ((v_ArrVal_3219 Int) (v_ArrVal_3223 Int) (v_ArrVal_3222 Int)) (= (select (let ((.cse3 (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_147| v_ArrVal_3219)) (.cse4 (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 4))) (let ((.cse1 (select .cse3 .cse4))) (select (let ((.cse0 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_147| v_ArrVal_3217)))) (store .cse0 .cse1 (store (select .cse0 .cse1) |v_ULTIMATE.start_dll_update_at_~head#1.offset_145| v_ArrVal_3223))) (select (select (let ((.cse2 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| .cse3))) (store .cse2 .cse1 (store (select .cse2 .cse1) |v_ULTIMATE.start_dll_update_at_~head#1.offset_145| v_ArrVal_3222))) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) .cse4)))) 4) 0)) (forall ((v_ArrVal_3219 Int) (v_ArrVal_3222 Int)) (= (select (let ((.cse6 (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 4))) (let ((.cse5 (let ((.cse9 (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_147| v_ArrVal_3219))) (let ((.cse7 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| .cse9)) (.cse8 (select .cse9 .cse6))) (store .cse7 .cse8 (store (select .cse7 .cse8) |v_ULTIMATE.start_dll_update_at_~head#1.offset_145| v_ArrVal_3222)))))) (select .cse5 (select (select .cse5 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) .cse6)))) 4) 0))))) is different from false [2021-11-25 20:27:03,731 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_3216 Int) (v_ArrVal_3217 Int) (|v_ULTIMATE.start_dll_update_at_~head#1.offset_145| Int) (|v_ULTIMATE.start_dll_update_at_~head#1.offset_147| Int)) (or (and (forall ((v_ArrVal_3219 Int) (v_ArrVal_3215 Int) (v_ArrVal_3222 Int)) (= (select (let ((.cse1 (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 4))) (let ((.cse0 (let ((.cse5 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base| (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base|) (+ |c_ULTIMATE.start_dll_create_~head~0#1.offset| 8) v_ArrVal_3215)))) (let ((.cse4 (store (select .cse5 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_147| v_ArrVal_3219))) (let ((.cse2 (store .cse5 |c_ULTIMATE.start_dll_create_~new_head~0#1.base| .cse4)) (.cse3 (select .cse4 .cse1))) (store .cse2 .cse3 (store (select .cse2 .cse3) |v_ULTIMATE.start_dll_update_at_~head#1.offset_145| v_ArrVal_3222))))))) (select .cse0 (select (select .cse0 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) .cse1)))) 4) 0)) (forall ((v_ArrVal_3219 Int) (v_ArrVal_3215 Int) (v_ArrVal_3223 Int) (v_ArrVal_3222 Int)) (= (select (let ((.cse9 (+ |c_ULTIMATE.start_dll_create_~head~0#1.offset| 8))) (let ((.cse11 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base| (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base|) .cse9 v_ArrVal_3215)))) (let ((.cse12 (store (select .cse11 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_147| v_ArrVal_3219)) (.cse13 (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 4))) (let ((.cse7 (select .cse12 .cse13))) (select (let ((.cse6 (let ((.cse8 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~head~0#1.base| (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~head~0#1.base|) .cse9 v_ArrVal_3216)))) (store .cse8 |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store (select .cse8 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_147| v_ArrVal_3217))))) (store .cse6 .cse7 (store (select .cse6 .cse7) |v_ULTIMATE.start_dll_update_at_~head#1.offset_145| v_ArrVal_3223))) (select (select (let ((.cse10 (store .cse11 |c_ULTIMATE.start_dll_create_~new_head~0#1.base| .cse12))) (store .cse10 .cse7 (store (select .cse10 .cse7) |v_ULTIMATE.start_dll_update_at_~head#1.offset_145| v_ArrVal_3222))) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) .cse13)))))) 4) 0))) (< (select (store (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~head~0#1.base| (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~head~0#1.base|) (+ |c_ULTIMATE.start_dll_create_~head~0#1.offset| 8) v_ArrVal_3216)) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_147| v_ArrVal_3217) (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 4)) |v_ULTIMATE.start_dll_update_at_~head#1.offset_145|) (< |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_147|))) is different from false [2021-11-25 20:27:06,195 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_3216 Int) (v_ArrVal_3217 Int) (|v_ULTIMATE.start_dll_update_at_~head#1.offset_145| Int) (v_ArrVal_3211 Int) (|v_ULTIMATE.start_dll_update_at_~head#1.offset_147| Int)) (or (< (select (store (select (let ((.cse0 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 8) v_ArrVal_3211)))) (store .cse0 |c_ULTIMATE.start_dll_create_~head~0#1.base| (store (select .cse0 |c_ULTIMATE.start_dll_create_~head~0#1.base|) (+ |c_ULTIMATE.start_dll_create_~head~0#1.offset| 8) v_ArrVal_3216))) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_147| v_ArrVal_3217) (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 4)) |v_ULTIMATE.start_dll_update_at_~head#1.offset_145|) (and (forall ((v_ArrVal_3209 Int) (v_ArrVal_3219 Int) (v_ArrVal_3215 Int) (v_ArrVal_3223 Int) (v_ArrVal_3222 Int)) (= (select (let ((.cse5 (+ |c_ULTIMATE.start_dll_create_~head~0#1.offset| 8)) (.cse6 (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 8))) (let ((.cse8 (let ((.cse11 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) .cse6 v_ArrVal_3209)))) (store .cse11 |c_ULTIMATE.start_dll_create_~head~0#1.base| (store (select .cse11 |c_ULTIMATE.start_dll_create_~head~0#1.base|) .cse5 v_ArrVal_3215))))) (let ((.cse9 (store (select .cse8 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_147| v_ArrVal_3219)) (.cse10 (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 4))) (let ((.cse2 (select .cse9 .cse10))) (select (let ((.cse1 (let ((.cse3 (let ((.cse4 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) .cse6 v_ArrVal_3211)))) (store .cse4 |c_ULTIMATE.start_dll_create_~head~0#1.base| (store (select .cse4 |c_ULTIMATE.start_dll_create_~head~0#1.base|) .cse5 v_ArrVal_3216))))) (store .cse3 |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store (select .cse3 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_147| v_ArrVal_3217))))) (store .cse1 .cse2 (store (select .cse1 .cse2) |v_ULTIMATE.start_dll_update_at_~head#1.offset_145| v_ArrVal_3223))) (select (select (let ((.cse7 (store .cse8 |c_ULTIMATE.start_dll_create_~new_head~0#1.base| .cse9))) (store .cse7 .cse2 (store (select .cse7 .cse2) |v_ULTIMATE.start_dll_update_at_~head#1.offset_145| v_ArrVal_3222))) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) .cse10)))))) 4) 0)) (forall ((v_ArrVal_3209 Int) (v_ArrVal_3219 Int) (v_ArrVal_3215 Int) (v_ArrVal_3222 Int)) (= (select (let ((.cse13 (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 4))) (let ((.cse12 (let ((.cse17 (let ((.cse18 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 8) v_ArrVal_3209)))) (store .cse18 |c_ULTIMATE.start_dll_create_~head~0#1.base| (store (select .cse18 |c_ULTIMATE.start_dll_create_~head~0#1.base|) (+ |c_ULTIMATE.start_dll_create_~head~0#1.offset| 8) v_ArrVal_3215))))) (let ((.cse16 (store (select .cse17 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_147| v_ArrVal_3219))) (let ((.cse14 (store .cse17 |c_ULTIMATE.start_dll_create_~new_head~0#1.base| .cse16)) (.cse15 (select .cse16 .cse13))) (store .cse14 .cse15 (store (select .cse14 .cse15) |v_ULTIMATE.start_dll_update_at_~head#1.offset_145| v_ArrVal_3222))))))) (select .cse12 (select (select .cse12 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) .cse13)))) 4) 0))) (< |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_147|))) is different from false [2021-11-25 20:27:09,369 WARN L838 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_dll_create_~new_head~0#1.offset| Int) (v_ArrVal_3208 Int) (v_ArrVal_3216 Int) (v_ArrVal_3217 Int) (|v_ULTIMATE.start_dll_update_at_~head#1.offset_145| Int) (v_ArrVal_3211 Int) (|v_ULTIMATE.start_dll_update_at_~head#1.offset_147| Int)) (or (< (let ((.cse1 (+ |ULTIMATE.start_dll_create_~new_head~0#1.offset| 4))) (select (store (select (let ((.cse0 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) .cse1 v_ArrVal_3208) (+ |ULTIMATE.start_dll_create_~new_head~0#1.offset| 8) v_ArrVal_3211)))) (store .cse0 |c_ULTIMATE.start_dll_create_~head~0#1.base| (store (select .cse0 |c_ULTIMATE.start_dll_create_~head~0#1.base|) (+ |c_ULTIMATE.start_dll_create_~head~0#1.offset| 8) v_ArrVal_3216))) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_147| v_ArrVal_3217) .cse1)) |v_ULTIMATE.start_dll_update_at_~head#1.offset_145|) (< |ULTIMATE.start_dll_create_~new_head~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_147|) (and (forall ((v_ArrVal_3209 Int) (v_ArrVal_3219 Int) (v_ArrVal_3215 Int) (v_ArrVal_3222 Int)) (= (select (let ((.cse3 (+ |ULTIMATE.start_dll_create_~new_head~0#1.offset| 4))) (let ((.cse2 (let ((.cse7 (let ((.cse8 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) .cse3 |c_ULTIMATE.start_dll_create_~head~0#1.base|) (+ |ULTIMATE.start_dll_create_~new_head~0#1.offset| 8) v_ArrVal_3209)))) (store .cse8 |c_ULTIMATE.start_dll_create_~head~0#1.base| (store (select .cse8 |c_ULTIMATE.start_dll_create_~head~0#1.base|) (+ |c_ULTIMATE.start_dll_create_~head~0#1.offset| 8) v_ArrVal_3215))))) (let ((.cse6 (store (select .cse7 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_147| v_ArrVal_3219))) (let ((.cse4 (store .cse7 |c_ULTIMATE.start_dll_create_~new_head~0#1.base| .cse6)) (.cse5 (select .cse6 .cse3))) (store .cse4 .cse5 (store (select .cse4 .cse5) |v_ULTIMATE.start_dll_update_at_~head#1.offset_145| v_ArrVal_3222))))))) (select .cse2 (select (select .cse2 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) .cse3)))) 4) 0)) (forall ((v_ArrVal_3209 Int) (v_ArrVal_3219 Int) (v_ArrVal_3215 Int) (v_ArrVal_3223 Int) (v_ArrVal_3222 Int)) (= (select (let ((.cse13 (+ |c_ULTIMATE.start_dll_create_~head~0#1.offset| 8)) (.cse14 (+ |ULTIMATE.start_dll_create_~new_head~0#1.offset| 4)) (.cse15 (+ |ULTIMATE.start_dll_create_~new_head~0#1.offset| 8))) (let ((.cse17 (let ((.cse19 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) .cse14 |c_ULTIMATE.start_dll_create_~head~0#1.base|) .cse15 v_ArrVal_3209)))) (store .cse19 |c_ULTIMATE.start_dll_create_~head~0#1.base| (store (select .cse19 |c_ULTIMATE.start_dll_create_~head~0#1.base|) .cse13 v_ArrVal_3215))))) (let ((.cse18 (store (select .cse17 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_147| v_ArrVal_3219))) (let ((.cse10 (select .cse18 .cse14))) (select (let ((.cse9 (let ((.cse11 (let ((.cse12 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) .cse14 v_ArrVal_3208) .cse15 v_ArrVal_3211)))) (store .cse12 |c_ULTIMATE.start_dll_create_~head~0#1.base| (store (select .cse12 |c_ULTIMATE.start_dll_create_~head~0#1.base|) .cse13 v_ArrVal_3216))))) (store .cse11 |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store (select .cse11 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_147| v_ArrVal_3217))))) (store .cse9 .cse10 (store (select .cse9 .cse10) |v_ULTIMATE.start_dll_update_at_~head#1.offset_145| v_ArrVal_3223))) (select (select (let ((.cse16 (store .cse17 |c_ULTIMATE.start_dll_create_~new_head~0#1.base| .cse18))) (store .cse16 .cse10 (store (select .cse16 .cse10) |v_ULTIMATE.start_dll_update_at_~head#1.offset_145| v_ArrVal_3222))) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) .cse14)))))) 4) 0))) (< |c_ULTIMATE.start_dll_create_~head~0#1.offset| v_ArrVal_3208))) is different from false [2021-11-25 20:27:09,393 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:27:09,465 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:27:09,466 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 1108 treesize of output 1024 [2021-11-25 20:27:09,476 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:27:09,564 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:27:09,564 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 1024 treesize of output 656 [2021-11-25 20:27:09,599 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 4 [2021-11-25 20:27:09,642 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 4 [2021-11-25 20:27:10,180 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 4 [2021-11-25 20:27:10,225 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 4 [2021-11-25 20:27:10,771 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 4 [2021-11-25 20:27:10,994 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 4 [2021-11-25 20:27:11,216 WARN L838 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_dll_create_~new_head~0#1.offset| Int) (v_arrayElimArr_33 (Array Int Int)) (v_arrayElimArr_32 (Array Int Int)) (v_ArrVal_3216 Int) (v_ArrVal_3217 Int) (|v_ULTIMATE.start_dll_update_at_~head#1.offset_145| Int) (v_arrayElimArr_31 (Array Int Int)) (|v_ULTIMATE.start_dll_update_at_~head#1.offset_147| Int)) (let ((.cse0 (+ |ULTIMATE.start_dll_create_~new_head~0#1.offset| 4))) (or (not (= |c_ULTIMATE.start_dll_create_~head~0#1.base| (select v_arrayElimArr_32 .cse0))) (< (select (store (select (let ((.cse1 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| v_arrayElimArr_31))) (store .cse1 |c_ULTIMATE.start_dll_create_~head~0#1.base| (store (select .cse1 |c_ULTIMATE.start_dll_create_~head~0#1.base|) (+ |c_ULTIMATE.start_dll_create_~head~0#1.offset| 8) v_ArrVal_3216))) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_147| v_ArrVal_3217) .cse0) |v_ULTIMATE.start_dll_update_at_~head#1.offset_145|) (not (= |c_ULTIMATE.start_dll_create_~head~0#1.base| (select v_arrayElimArr_33 .cse0))) (< |ULTIMATE.start_dll_create_~new_head~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_147|) (and (forall ((v_ArrVal_3219 Int) (v_ArrVal_3215 Int) (v_ArrVal_3223 Int) (v_ArrVal_3222 Int)) (= (select (let ((.cse6 (+ |c_ULTIMATE.start_dll_create_~head~0#1.offset| 8))) (let ((.cse8 (let ((.cse11 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| v_arrayElimArr_32))) (store .cse11 |c_ULTIMATE.start_dll_create_~head~0#1.base| (store (select .cse11 |c_ULTIMATE.start_dll_create_~head~0#1.base|) .cse6 v_ArrVal_3215))))) (let ((.cse9 (store (select .cse8 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_147| v_ArrVal_3219)) (.cse10 (+ |ULTIMATE.start_dll_create_~new_head~0#1.offset| 4))) (let ((.cse3 (select .cse9 .cse10))) (select (let ((.cse2 (let ((.cse4 (let ((.cse5 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| v_arrayElimArr_31))) (store .cse5 |c_ULTIMATE.start_dll_create_~head~0#1.base| (store (select .cse5 |c_ULTIMATE.start_dll_create_~head~0#1.base|) .cse6 v_ArrVal_3216))))) (store .cse4 |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store (select .cse4 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_147| v_ArrVal_3217))))) (store .cse2 .cse3 (store (select .cse2 .cse3) |v_ULTIMATE.start_dll_update_at_~head#1.offset_145| v_ArrVal_3223))) (select (select (let ((.cse7 (store .cse8 |c_ULTIMATE.start_dll_create_~new_head~0#1.base| .cse9))) (store .cse7 .cse3 (store (select .cse7 .cse3) |v_ULTIMATE.start_dll_update_at_~head#1.offset_145| v_ArrVal_3222))) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) .cse10)))))) 4) 0)) (forall ((v_prenex_49 Int) (v_prenex_48 Int) (v_prenex_50 Int)) (= (select (let ((.cse13 (+ |ULTIMATE.start_dll_create_~new_head~0#1.offset| 4))) (let ((.cse12 (let ((.cse17 (let ((.cse18 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| v_arrayElimArr_33))) (store .cse18 |c_ULTIMATE.start_dll_create_~head~0#1.base| (store (select .cse18 |c_ULTIMATE.start_dll_create_~head~0#1.base|) (+ |c_ULTIMATE.start_dll_create_~head~0#1.offset| 8) v_prenex_49))))) (let ((.cse16 (store (select .cse17 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_147| v_prenex_48))) (let ((.cse14 (store .cse17 |c_ULTIMATE.start_dll_create_~new_head~0#1.base| .cse16)) (.cse15 (select .cse16 .cse13))) (store .cse14 .cse15 (store (select .cse14 .cse15) |v_ULTIMATE.start_dll_update_at_~head#1.offset_145| v_prenex_50))))))) (select .cse12 (select (select .cse12 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) .cse13)))) 4) 0))) (< |c_ULTIMATE.start_dll_create_~head~0#1.offset| (select v_arrayElimArr_31 .cse0))))) is different from false [2021-11-25 20:27:11,246 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 4 [2021-11-25 20:27:11,288 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 4 [2021-11-25 20:27:11,921 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 4 [2021-11-25 20:27:12,171 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 4 [2021-11-25 20:27:12,419 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 4 [2021-11-25 20:27:12,454 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 4 [2021-11-25 20:27:13,209 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 4 [2021-11-25 20:27:13,248 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 4 [2021-11-25 20:27:13,825 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 4 [2021-11-25 20:27:14,037 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 4 [2021-11-25 20:27:14,260 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 4 [2021-11-25 20:27:14,668 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 4 [2021-11-25 20:27:15,177 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 4 [2021-11-25 20:27:15,213 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 4 [2021-11-25 20:27:15,751 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 4 [2021-11-25 20:27:15,951 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 4 [2021-11-25 20:27:16,526 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2021-11-25 20:27:17,285 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2021-11-25 20:27:17,392 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2021-11-25 20:27:17,461 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 442 treesize of output 330 [2021-11-25 20:27:17,604 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2021-11-25 20:27:18,102 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2021-11-25 20:27:18,203 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2021-11-25 20:27:18,263 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 442 treesize of output 330 [2021-11-25 20:27:18,359 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2021-11-25 20:27:18,573 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 442 treesize of output 330 [2021-11-25 20:27:18,852 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 442 treesize of output 330 [2021-11-25 20:27:19,345 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2021-11-25 20:27:19,913 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_dll_create_~new_head~0#1.base_109| Int) (v_arrayElimArr_33 (Array Int Int)) (v_arrayElimArr_32 (Array Int Int)) (v_ArrVal_3216 Int) (v_ArrVal_3217 Int) (|v_ULTIMATE.start_dll_update_at_~head#1.offset_145| Int) (|v_ULTIMATE.start_dll_create_~new_head~0#1.offset_125| Int) (v_arrayElimArr_31 (Array Int Int)) (|v_ULTIMATE.start_dll_update_at_~head#1.offset_147| Int)) (let ((.cse2 (+ |v_ULTIMATE.start_dll_create_~new_head~0#1.offset_125| 4))) (let ((.cse1 (select v_arrayElimArr_33 .cse2))) (or (< |v_ULTIMATE.start_dll_create_~new_head~0#1.offset_125| |v_ULTIMATE.start_dll_update_at_~head#1.offset_147|) (< (select (store (select (let ((.cse0 (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_dll_create_~new_head~0#1.base_109| v_arrayElimArr_31))) (store .cse0 .cse1 (store (select .cse0 .cse1) (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 8) v_ArrVal_3216))) |v_ULTIMATE.start_dll_create_~new_head~0#1.base_109|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_147| v_ArrVal_3217) .cse2) |v_ULTIMATE.start_dll_update_at_~head#1.offset_145|) (< |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| (select v_arrayElimArr_31 .cse2)) (not (= .cse1 (select v_arrayElimArr_32 .cse2))) (and (forall ((v_ArrVal_3219 Int) (v_ArrVal_3215 Int) (v_ArrVal_3223 Int) (v_ArrVal_3222 Int)) (= (select (let ((.cse12 (+ |v_ULTIMATE.start_dll_create_~new_head~0#1.offset_125| 4))) (let ((.cse7 (select v_arrayElimArr_33 .cse12)) (.cse8 (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 8))) (let ((.cse10 (let ((.cse13 (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_dll_create_~new_head~0#1.base_109| v_arrayElimArr_32))) (store .cse13 .cse7 (store (select .cse13 .cse7) .cse8 v_ArrVal_3215))))) (let ((.cse11 (store (select .cse10 |v_ULTIMATE.start_dll_create_~new_head~0#1.base_109|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_147| v_ArrVal_3219))) (let ((.cse4 (select .cse11 .cse12))) (select (let ((.cse3 (let ((.cse5 (let ((.cse6 (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_dll_create_~new_head~0#1.base_109| v_arrayElimArr_31))) (store .cse6 .cse7 (store (select .cse6 .cse7) .cse8 v_ArrVal_3216))))) (store .cse5 |v_ULTIMATE.start_dll_create_~new_head~0#1.base_109| (store (select .cse5 |v_ULTIMATE.start_dll_create_~new_head~0#1.base_109|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_147| v_ArrVal_3217))))) (store .cse3 .cse4 (store (select .cse3 .cse4) |v_ULTIMATE.start_dll_update_at_~head#1.offset_145| v_ArrVal_3223))) (select (select (let ((.cse9 (store .cse10 |v_ULTIMATE.start_dll_create_~new_head~0#1.base_109| .cse11))) (store .cse9 .cse4 (store (select .cse9 .cse4) |v_ULTIMATE.start_dll_update_at_~head#1.offset_145| v_ArrVal_3222))) |v_ULTIMATE.start_dll_create_~new_head~0#1.base_109|) .cse12))))))) 4) 0)) (forall ((v_prenex_49 Int) (v_prenex_48 Int) (v_prenex_50 Int)) (= (select (let ((.cse15 (+ |v_ULTIMATE.start_dll_create_~new_head~0#1.offset_125| 4))) (let ((.cse14 (let ((.cse19 (let ((.cse20 (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_dll_create_~new_head~0#1.base_109| v_arrayElimArr_33)) (.cse21 (select v_arrayElimArr_33 .cse15))) (store .cse20 .cse21 (store (select .cse20 .cse21) (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 8) v_prenex_49))))) (let ((.cse18 (store (select .cse19 |v_ULTIMATE.start_dll_create_~new_head~0#1.base_109|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_147| v_prenex_48))) (let ((.cse16 (store .cse19 |v_ULTIMATE.start_dll_create_~new_head~0#1.base_109| .cse18)) (.cse17 (select .cse18 .cse15))) (store .cse16 .cse17 (store (select .cse16 .cse17) |v_ULTIMATE.start_dll_update_at_~head#1.offset_145| v_prenex_50))))))) (select .cse14 (select (select .cse14 |v_ULTIMATE.start_dll_create_~new_head~0#1.base_109|) .cse15)))) 4) 0))) (not (= .cse1 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|)) (not (= (select |c_#valid| |v_ULTIMATE.start_dll_create_~new_head~0#1.base_109|) 0)))))) is different from false [2021-11-25 20:27:19,965 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2021-11-25 20:27:20,805 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2021-11-25 20:27:20,931 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2021-11-25 20:27:21,016 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 442 treesize of output 330 [2021-11-25 20:27:21,119 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2021-11-25 20:27:21,611 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2021-11-25 20:27:21,712 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2021-11-25 20:27:21,771 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 442 treesize of output 330 [2021-11-25 20:27:21,883 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2021-11-25 20:27:22,095 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 442 treesize of output 330 [2021-11-25 20:27:22,337 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 442 treesize of output 330 [2021-11-25 20:27:22,831 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2021-11-25 20:27:23,462 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2021-11-25 20:27:24,423 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2021-11-25 20:27:24,538 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2021-11-25 20:27:24,610 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 702 treesize of output 590 [2021-11-25 20:27:24,737 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2021-11-25 20:27:25,357 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2021-11-25 20:27:25,488 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2021-11-25 20:27:25,567 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 702 treesize of output 590 [2021-11-25 20:27:25,712 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2021-11-25 20:27:25,980 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 702 treesize of output 590 [2021-11-25 20:27:26,363 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2021-11-25 20:27:27,427 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2021-11-25 20:27:27,624 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2021-11-25 20:27:27,743 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 702 treesize of output 590 [2021-11-25 20:27:27,950 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2021-11-25 20:27:28,601 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2021-11-25 20:27:28,722 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2021-11-25 20:27:28,799 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 702 treesize of output 590 [2021-11-25 20:27:28,945 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2021-11-25 20:27:29,241 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 702 treesize of output 590 [2021-11-25 20:27:29,554 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 702 treesize of output 590 [2021-11-25 20:27:30,270 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2021-11-25 20:27:30,970 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_dll_create_~new_head~0#1.base_109| Int) (v_arrayElimArr_33 (Array Int Int)) (v_arrayElimArr_32 (Array Int Int)) (v_ArrVal_3216 Int) (v_ArrVal_3217 Int) (v_ArrVal_3201 Int) (|v_ULTIMATE.start_dll_update_at_~head#1.offset_145| Int) (|v_ULTIMATE.start_dll_create_~new_head~0#1.offset_125| Int) (v_arrayElimArr_31 (Array Int Int)) (|v_ULTIMATE.start_dll_update_at_~head#1.offset_147| Int)) (let ((.cse0 (+ |v_ULTIMATE.start_dll_create_~new_head~0#1.offset_125| 4))) (let ((.cse21 (select v_arrayElimArr_33 .cse0))) (or (< |v_ULTIMATE.start_dll_create_~new_head~0#1.offset_125| |v_ULTIMATE.start_dll_update_at_~head#1.offset_147|) (< |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| (select v_arrayElimArr_31 .cse0)) (and (forall ((v_ArrVal_3219 Int) (v_ArrVal_3215 Int) (v_ArrVal_3223 Int) (v_ArrVal_3200 Int) (v_ArrVal_3222 Int)) (= (select (let ((.cse10 (+ |v_ULTIMATE.start_dll_create_~new_head~0#1.offset_125| 4))) (let ((.cse5 (select v_arrayElimArr_33 .cse10)) (.cse6 (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 8))) (let ((.cse8 (let ((.cse11 (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) .cse6 v_ArrVal_3200)) |v_ULTIMATE.start_dll_create_~new_head~0#1.base_109| v_arrayElimArr_32))) (store .cse11 .cse5 (store (select .cse11 .cse5) .cse6 v_ArrVal_3215))))) (let ((.cse9 (store (select .cse8 |v_ULTIMATE.start_dll_create_~new_head~0#1.base_109|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_147| v_ArrVal_3219))) (let ((.cse2 (select .cse9 .cse10))) (select (let ((.cse1 (let ((.cse3 (let ((.cse4 (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) .cse6 v_ArrVal_3201)) |v_ULTIMATE.start_dll_create_~new_head~0#1.base_109| v_arrayElimArr_31))) (store .cse4 .cse5 (store (select .cse4 .cse5) .cse6 v_ArrVal_3216))))) (store .cse3 |v_ULTIMATE.start_dll_create_~new_head~0#1.base_109| (store (select .cse3 |v_ULTIMATE.start_dll_create_~new_head~0#1.base_109|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_147| v_ArrVal_3217))))) (store .cse1 .cse2 (store (select .cse1 .cse2) |v_ULTIMATE.start_dll_update_at_~head#1.offset_145| v_ArrVal_3223))) (select (select (let ((.cse7 (store .cse8 |v_ULTIMATE.start_dll_create_~new_head~0#1.base_109| .cse9))) (store .cse7 .cse2 (store (select .cse7 .cse2) |v_ULTIMATE.start_dll_update_at_~head#1.offset_145| v_ArrVal_3222))) |v_ULTIMATE.start_dll_create_~new_head~0#1.base_109|) .cse10))))))) 4) 0)) (forall ((v_prenex_49 Int) (v_prenex_48 Int) (v_ArrVal_3200 Int) (v_prenex_50 Int)) (= (select (let ((.cse13 (+ |v_ULTIMATE.start_dll_create_~new_head~0#1.offset_125| 4))) (let ((.cse12 (let ((.cse17 (let ((.cse20 (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 8))) (let ((.cse18 (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) .cse20 v_ArrVal_3200)) |v_ULTIMATE.start_dll_create_~new_head~0#1.base_109| v_arrayElimArr_33)) (.cse19 (select v_arrayElimArr_33 .cse13))) (store .cse18 .cse19 (store (select .cse18 .cse19) .cse20 v_prenex_49)))))) (let ((.cse16 (store (select .cse17 |v_ULTIMATE.start_dll_create_~new_head~0#1.base_109|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_147| v_prenex_48))) (let ((.cse14 (store .cse17 |v_ULTIMATE.start_dll_create_~new_head~0#1.base_109| .cse16)) (.cse15 (select .cse16 .cse13))) (store .cse14 .cse15 (store (select .cse14 .cse15) |v_ULTIMATE.start_dll_update_at_~head#1.offset_145| v_prenex_50))))))) (select .cse12 (select (select .cse12 |v_ULTIMATE.start_dll_create_~new_head~0#1.base_109|) .cse13)))) 4) 0))) (not (= .cse21 (select v_arrayElimArr_32 .cse0))) (not (= .cse21 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|)) (< (select (store (select (let ((.cse23 (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 8))) (let ((.cse22 (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) .cse23 v_ArrVal_3201)) |v_ULTIMATE.start_dll_create_~new_head~0#1.base_109| v_arrayElimArr_31))) (store .cse22 .cse21 (store (select .cse22 .cse21) .cse23 v_ArrVal_3216)))) |v_ULTIMATE.start_dll_create_~new_head~0#1.base_109|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_147| v_ArrVal_3217) .cse0) |v_ULTIMATE.start_dll_update_at_~head#1.offset_145|) (not (= (select |c_#valid| |v_ULTIMATE.start_dll_create_~new_head~0#1.base_109|) 0)))))) is different from false [2021-11-25 20:27:31,003 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:27:31,047 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:27:31,047 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 1558 treesize of output 1428 [2021-11-25 20:27:31,053 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:27:31,139 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:27:31,139 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 1428 treesize of output 868 [2021-11-25 20:27:31,323 INFO L354 Elim1Store]: treesize reduction 204, result has 57.8 percent of original size [2021-11-25 20:27:31,324 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 933114 treesize of output 896124 [2021-11-25 20:27:31,930 INFO L354 Elim1Store]: treesize reduction 66, result has 44.1 percent of original size [2021-11-25 20:27:31,931 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 14412730 treesize of output 12187731 [2021-11-25 20:33:11,975 WARN L227 SmtUtils]: Spent 5.67m on a formula simplification. DAG size of input: 1561 DAG size of output: 1453 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-25 20:33:12,128 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Should have been eliminated by DER [2021-11-25 20:33:12,128 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [659491667] [2021-11-25 20:33:12,129 INFO L159 IcfgInterpreter]: Started Sifa with 24 locations of interest [2021-11-25 20:33:12,129 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 20:33:12,129 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 20:33:12,130 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 20:33:12,130 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 20:33:12,164 FATAL L? ?]: Ignoring exception! java.lang.IllegalStateException: ManagedScript already locked by de.uni_freiburg.informatik.ultimate.lib.smtlibutils.IncrementalPlicationChecker@42a53342 at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.lock(ManagedScript.java:82) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.IncrementalPlicationChecker.assertLhs(IncrementalPlicationChecker.java:103) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.IncrementalPlicationChecker.checkPlication(IncrementalPlicationChecker.java:135) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.ArrayIndexEqualityManager.(ArrayIndexEqualityManager.java:92) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.ElimStorePlain.applyComplexEliminationRules(ElimStorePlain.java:401) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminate(DualJunctionSaa.java:184) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne3(DualJunctionSaa.java:166) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne2(DualJunctionSaa.java:154) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne1(DualJunctionSaa.java:142) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne0(DualJunctionSaa.java:124) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne(DualJunctionSaa.java:110) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryExhaustivelyToEliminate(DualJunctionSaa.java:95) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminate(DualJunctionSaa.java:90) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToEliminateOne(QuantifierPusher.java:903) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.applyNewEliminationTechniquesExhaustively(QuantifierPusher.java:865) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.applyDualJunctionEliminationTechniques(QuantifierPusher.java:783) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective2(QuantifierPusher.java:425) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:355) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:162) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:169) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:77) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:61) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:243) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:233) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools$EliminatingTermDomainOperationProvider.newQuantifier(SymbolicTools.java:285) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools$EliminatingTermDomainOperationProvider.projectExistentially(SymbolicTools.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.TermDomainOperationProvider.projectExistentially(TermDomainOperationProvider.java:1) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateTransformer.strongestPostcondition(PredicateTransformer.java:131) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools.post(SymbolicTools.java:119) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretInternal(DagInterpreter.java:227) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:209) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:187) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:165) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:123) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpretLoisInProcedure(IcfgInterpreter.java:136) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpret(IcfgInterpreter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:102) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:268) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:176) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-25 20:33:12,168 INFO L186 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2021-11-25 20:33:12,168 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2021-11-25 20:33:12,169 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958855396] [2021-11-25 20:33:12,169 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2021-11-25 20:33:12,169 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2021-11-25 20:33:12,169 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:33:12,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-11-25 20:33:12,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=156, Invalid=1678, Unknown=16, NotChecked=1012, Total=2862 [2021-11-25 20:33:12,170 INFO L87 Difference]: Start difference. First operand 57 states and 57 transitions. Second operand has 26 states, 26 states have (on average 1.7692307692307692) internal successors, (46), 25 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:33:12,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-25 20:33:12,170 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 67 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 11 IntricatePredicates, 0 DeprecatedPredicates, 406 ImplicationChecksByTransitivity, 35.3s TimeCoverageRelationStatistics Valid=156, Invalid=1678, Unknown=16, NotChecked=1012, Total=2862 [2021-11-25 20:33:12,171 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-25 20:33:12,171 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-25 20:33:12,192 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2021-11-25 20:33:12,372 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35,24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:33:12,372 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.IllegalStateException: ManagedScript already locked by de.uni_freiburg.informatik.ultimate.lib.smtlibutils.IncrementalPlicationChecker@42a53342 at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.lock(ManagedScript.java:82) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.assertCodeBlock(IncrementalHoareTripleChecker.java:360) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.prepareAssertionStackAndAddTransition(IncrementalHoareTripleChecker.java:206) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.checkInternal(IncrementalHoareTripleChecker.java:131) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.ChainingHoareTripleChecker$ProtectedHtc.checkInternal(ChainingHoareTripleChecker.java:455) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.ChainingHoareTripleChecker.checkInternal(ChainingHoareTripleChecker.java:103) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.CachingHoareTripleChecker.checkInternal(CachingHoareTripleChecker.java:95) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton$InternalSuccessorComputationHelper.computeSuccWithSolver(AbstractInterpolantAutomaton.java:357) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.chooseFalseSuccessor2(BasicAbstractInterpolantAutomaton.java:107) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:73) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:233) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.TotalizeNwa.internalSuccessors(TotalizeNwa.java:213) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ComplementDeterministicNwa.internalSuccessors(ComplementDeterministicNwa.java:121) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:216) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:208) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.addInternalsAndSuccessors(NestedWordAutomatonReachableStates.java:1058) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.(NestedWordAutomatonReachableStates.java:960) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates.(NestedWordAutomatonReachableStates.java:182) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.Difference.computeDifference(Difference.java:137) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.Difference.(Difference.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.computeAutomataDifference(BasicCegarLoop.java:868) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.refineAbstraction(BasicCegarLoop.java:784) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.refineAbstractionInternal(AbstractCegarLoop.java:462) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:420) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:176) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-25 20:33:12,375 INFO L158 Benchmark]: Toolchain (without parser) took 646537.32ms. Allocated memory was 92.3MB in the beginning and 490.7MB in the end (delta: 398.5MB). Free memory was 70.3MB in the beginning and 260.7MB in the end (delta: -190.3MB). Peak memory consumption was 208.1MB. Max. memory is 16.1GB. [2021-11-25 20:33:12,375 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 92.3MB. Free memory was 69.8MB in the beginning and 69.7MB in the end (delta: 43.7kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-25 20:33:12,375 INFO L158 Benchmark]: CACSL2BoogieTranslator took 660.93ms. Allocated memory is still 92.3MB. Free memory was 70.1MB in the beginning and 61.0MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-25 20:33:12,376 INFO L158 Benchmark]: Boogie Procedure Inliner took 78.79ms. Allocated memory is still 92.3MB. Free memory was 61.0MB in the beginning and 58.8MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-25 20:33:12,376 INFO L158 Benchmark]: Boogie Preprocessor took 76.86ms. Allocated memory is still 92.3MB. Free memory was 58.8MB in the beginning and 57.3MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-25 20:33:12,376 INFO L158 Benchmark]: RCFGBuilder took 589.48ms. Allocated memory is still 92.3MB. Free memory was 57.3MB in the beginning and 39.7MB in the end (delta: 17.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2021-11-25 20:33:12,376 INFO L158 Benchmark]: TraceAbstraction took 645124.41ms. Allocated memory was 92.3MB in the beginning and 490.7MB in the end (delta: 398.5MB). Free memory was 39.2MB in the beginning and 260.7MB in the end (delta: -221.5MB). Peak memory consumption was 178.3MB. Max. memory is 16.1GB. [2021-11-25 20:33:12,377 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 92.3MB. Free memory was 69.8MB in the beginning and 69.7MB in the end (delta: 43.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 660.93ms. Allocated memory is still 92.3MB. Free memory was 70.1MB in the beginning and 61.0MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 78.79ms. Allocated memory is still 92.3MB. Free memory was 61.0MB in the beginning and 58.8MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 76.86ms. Allocated memory is still 92.3MB. Free memory was 58.8MB in the beginning and 57.3MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 589.48ms. Allocated memory is still 92.3MB. Free memory was 57.3MB in the beginning and 39.7MB in the end (delta: 17.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 645124.41ms. Allocated memory was 92.3MB in the beginning and 490.7MB in the end (delta: 398.5MB). Free memory was 39.2MB in the beginning and 260.7MB in the end (delta: -221.5MB). Peak memory consumption was 178.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: IllegalStateException: ManagedScript already locked by de.uni_freiburg.informatik.ultimate.lib.smtlibutils.IncrementalPlicationChecker@42a53342 de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: IllegalStateException: ManagedScript already locked by de.uni_freiburg.informatik.ultimate.lib.smtlibutils.IncrementalPlicationChecker@42a53342: de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.lock(ManagedScript.java:82) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-25 20:33:12,446 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-simple/dll2n_update_all.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c46cc56772f2c3f0b073640343b328fb3b128ed13803ffe5a04f6290fe624494 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 20:33:14,746 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 20:33:14,750 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 20:33:14,812 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 20:33:14,813 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 20:33:14,819 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 20:33:14,820 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 20:33:14,825 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 20:33:14,829 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 20:33:14,840 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 20:33:14,841 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 20:33:14,844 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 20:33:14,844 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 20:33:14,847 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 20:33:14,849 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 20:33:14,855 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 20:33:14,858 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 20:33:14,859 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 20:33:14,861 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 20:33:14,871 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 20:33:14,874 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 20:33:14,875 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 20:33:14,878 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 20:33:14,881 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 20:33:14,885 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 20:33:14,885 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 20:33:14,886 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 20:33:14,888 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 20:33:14,889 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 20:33:14,890 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 20:33:14,890 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 20:33:14,892 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 20:33:14,894 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 20:33:14,895 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 20:33:14,897 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 20:33:14,897 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 20:33:14,898 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 20:33:14,899 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 20:33:14,905 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 20:33:14,908 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 20:33:14,909 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 20:33:14,912 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2021-11-25 20:33:14,961 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 20:33:14,961 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 20:33:14,962 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-25 20:33:14,962 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-25 20:33:14,963 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 20:33:14,964 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-25 20:33:14,964 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-25 20:33:14,964 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-25 20:33:14,964 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-25 20:33:14,965 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-25 20:33:14,966 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-25 20:33:14,966 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-25 20:33:14,968 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-25 20:33:14,968 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-25 20:33:14,968 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 20:33:14,969 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-25 20:33:14,969 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-25 20:33:14,969 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-25 20:33:14,969 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-25 20:33:14,970 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 20:33:14,970 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-25 20:33:14,970 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-25 20:33:14,970 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-25 20:33:14,971 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 20:33:14,971 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-25 20:33:14,971 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-25 20:33:14,971 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-25 20:33:14,972 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-25 20:33:14,972 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 20:33:14,972 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 20:33:14,972 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-25 20:33:14,973 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-25 20:33:14,973 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 20:33:14,973 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 20:33:14,974 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 20:33:14,974 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-25 20:33:14,974 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-25 20:33:14,975 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-25 20:33:14,975 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-25 20:33:14,975 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c46cc56772f2c3f0b073640343b328fb3b128ed13803ffe5a04f6290fe624494 [2021-11-25 20:33:15,311 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 20:33:15,338 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 20:33:15,341 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 20:33:15,343 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 20:33:15,343 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 20:33:15,345 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/../../sv-benchmarks/c/list-simple/dll2n_update_all.i [2021-11-25 20:33:15,411 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/data/ee8cc8ece/6e7412c7290644c39de7abecad6dad6b/FLAGcfe39b726 [2021-11-25 20:33:16,069 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 20:33:16,070 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/sv-benchmarks/c/list-simple/dll2n_update_all.i [2021-11-25 20:33:16,085 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/data/ee8cc8ece/6e7412c7290644c39de7abecad6dad6b/FLAGcfe39b726 [2021-11-25 20:33:16,340 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/data/ee8cc8ece/6e7412c7290644c39de7abecad6dad6b [2021-11-25 20:33:16,343 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 20:33:16,344 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 20:33:16,345 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 20:33:16,345 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 20:33:16,349 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 20:33:16,350 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:33:16" (1/1) ... [2021-11-25 20:33:16,351 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@132a063e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:33:16, skipping insertion in model container [2021-11-25 20:33:16,351 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:33:16" (1/1) ... [2021-11-25 20:33:16,369 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 20:33:16,419 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 20:33:16,826 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/sv-benchmarks/c/list-simple/dll2n_update_all.i[24455,24468] [2021-11-25 20:33:16,831 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 20:33:16,850 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 20:33:16,907 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/sv-benchmarks/c/list-simple/dll2n_update_all.i[24455,24468] [2021-11-25 20:33:16,908 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 20:33:16,946 INFO L208 MainTranslator]: Completed translation [2021-11-25 20:33:16,946 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:33:16 WrapperNode [2021-11-25 20:33:16,946 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 20:33:16,948 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 20:33:16,948 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 20:33:16,948 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 20:33:16,955 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:33:16" (1/1) ... [2021-11-25 20:33:16,981 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:33:16" (1/1) ... [2021-11-25 20:33:17,008 INFO L137 Inliner]: procedures = 129, calls = 27, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 114 [2021-11-25 20:33:17,009 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 20:33:17,015 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 20:33:17,016 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 20:33:17,016 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 20:33:17,028 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:33:16" (1/1) ... [2021-11-25 20:33:17,028 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:33:16" (1/1) ... [2021-11-25 20:33:17,033 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:33:16" (1/1) ... [2021-11-25 20:33:17,033 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:33:16" (1/1) ... [2021-11-25 20:33:17,044 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:33:16" (1/1) ... [2021-11-25 20:33:17,048 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:33:16" (1/1) ... [2021-11-25 20:33:17,051 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:33:16" (1/1) ... [2021-11-25 20:33:17,055 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 20:33:17,056 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 20:33:17,056 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 20:33:17,057 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 20:33:17,058 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:33:16" (1/1) ... [2021-11-25 20:33:17,072 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 20:33:17,087 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:33:17,108 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-25 20:33:17,110 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-25 20:33:17,144 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2021-11-25 20:33:17,145 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2021-11-25 20:33:17,145 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-25 20:33:17,145 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-25 20:33:17,145 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-25 20:33:17,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-25 20:33:17,146 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-25 20:33:17,146 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-25 20:33:17,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-25 20:33:17,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-25 20:33:17,146 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 20:33:17,147 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 20:33:17,256 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 20:33:17,258 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 20:33:17,298 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2021-11-25 20:33:17,747 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 20:33:17,753 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 20:33:17,754 INFO L301 CfgBuilder]: Removed 6 assume(true) statements. [2021-11-25 20:33:17,756 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:33:17 BoogieIcfgContainer [2021-11-25 20:33:17,756 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 20:33:17,758 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-25 20:33:17,758 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-25 20:33:17,761 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-25 20:33:17,761 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 08:33:16" (1/3) ... [2021-11-25 20:33:17,762 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53b74285 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:33:17, skipping insertion in model container [2021-11-25 20:33:17,762 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:33:16" (2/3) ... [2021-11-25 20:33:17,762 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53b74285 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:33:17, skipping insertion in model container [2021-11-25 20:33:17,763 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:33:17" (3/3) ... [2021-11-25 20:33:17,764 INFO L111 eAbstractionObserver]: Analyzing ICFG dll2n_update_all.i [2021-11-25 20:33:17,769 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-25 20:33:17,769 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 23 error locations. [2021-11-25 20:33:17,818 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-25 20:33:17,826 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-25 20:33:17,826 INFO L340 AbstractCegarLoop]: Starting to check reachability of 23 error locations. [2021-11-25 20:33:17,852 INFO L276 IsEmpty]: Start isEmpty. Operand has 67 states, 42 states have (on average 1.9047619047619047) internal successors, (80), 65 states have internal predecessors, (80), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:33:17,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-25 20:33:17,863 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:33:17,863 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-25 20:33:17,864 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 19 more)] === [2021-11-25 20:33:17,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:33:17,874 INFO L85 PathProgramCache]: Analyzing trace with hash 33471376, now seen corresponding path program 1 times [2021-11-25 20:33:17,886 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-25 20:33:17,887 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [15628567] [2021-11-25 20:33:17,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:33:17,888 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-25 20:33:17,889 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/mathsat [2021-11-25 20:33:17,893 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-25 20:33:17,902 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-25 20:33:17,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:33:17,975 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-25 20:33:17,980 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:33:18,068 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 20:33:18,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:33:18,083 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 20:33:18,084 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-25 20:33:18,084 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [15628567] [2021-11-25 20:33:18,085 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [15628567] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:33:18,085 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:33:18,085 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-25 20:33:18,087 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237609846] [2021-11-25 20:33:18,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:33:18,092 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:33:18,092 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-25 20:33:18,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:33:18,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:33:18,123 INFO L87 Difference]: Start difference. First operand has 67 states, 42 states have (on average 1.9047619047619047) internal successors, (80), 65 states have internal predecessors, (80), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:33:18,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:33:18,336 INFO L93 Difference]: Finished difference Result 111 states and 123 transitions. [2021-11-25 20:33:18,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:33:18,339 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-11-25 20:33:18,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:33:18,348 INFO L225 Difference]: With dead ends: 111 [2021-11-25 20:33:18,348 INFO L226 Difference]: Without dead ends: 104 [2021-11-25 20:33:18,352 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:33:18,357 INFO L933 BasicCegarLoop]: 97 mSDtfsCounter, 63 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-25 20:33:18,359 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [63 Valid, 136 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-25 20:33:18,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2021-11-25 20:33:18,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 59. [2021-11-25 20:33:18,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 39 states have (on average 1.6666666666666667) internal successors, (65), 58 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:33:18,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 65 transitions. [2021-11-25 20:33:18,406 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 65 transitions. Word has length 5 [2021-11-25 20:33:18,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:33:18,407 INFO L470 AbstractCegarLoop]: Abstraction has 59 states and 65 transitions. [2021-11-25 20:33:18,407 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:33:18,408 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 65 transitions. [2021-11-25 20:33:18,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-25 20:33:18,408 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:33:18,408 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-25 20:33:18,422 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-25 20:33:18,619 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 [2021-11-25 20:33:18,619 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 19 more)] === [2021-11-25 20:33:18,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:33:18,620 INFO L85 PathProgramCache]: Analyzing trace with hash 33471377, now seen corresponding path program 1 times [2021-11-25 20:33:18,621 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-25 20:33:18,621 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [303920115] [2021-11-25 20:33:18,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:33:18,622 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-25 20:33:18,622 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/mathsat [2021-11-25 20:33:18,625 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-25 20:33:18,627 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-25 20:33:18,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:33:18,682 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-25 20:33:18,683 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:33:18,703 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 20:33:18,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:33:18,736 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 20:33:18,736 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-25 20:33:18,737 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [303920115] [2021-11-25 20:33:18,737 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [303920115] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:33:18,737 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:33:18,737 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-25 20:33:18,737 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586557194] [2021-11-25 20:33:18,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:33:18,739 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:33:18,739 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-25 20:33:18,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:33:18,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:33:18,740 INFO L87 Difference]: Start difference. First operand 59 states and 65 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:33:18,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:33:18,914 INFO L93 Difference]: Finished difference Result 101 states and 112 transitions. [2021-11-25 20:33:18,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:33:18,916 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-11-25 20:33:18,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:33:18,918 INFO L225 Difference]: With dead ends: 101 [2021-11-25 20:33:18,918 INFO L226 Difference]: Without dead ends: 101 [2021-11-25 20:33:18,918 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:33:18,920 INFO L933 BasicCegarLoop]: 94 mSDtfsCounter, 58 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-25 20:33:18,920 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [58 Valid, 133 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-25 20:33:18,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2021-11-25 20:33:18,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 56. [2021-11-25 20:33:18,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 39 states have (on average 1.5897435897435896) internal successors, (62), 55 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:33:18,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 62 transitions. [2021-11-25 20:33:18,941 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 62 transitions. Word has length 5 [2021-11-25 20:33:18,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:33:18,943 INFO L470 AbstractCegarLoop]: Abstraction has 56 states and 62 transitions. [2021-11-25 20:33:18,943 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:33:18,944 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 62 transitions. [2021-11-25 20:33:18,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-25 20:33:18,944 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:33:18,945 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:33:18,963 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-25 20:33:19,159 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 [2021-11-25 20:33:19,160 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr8REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 19 more)] === [2021-11-25 20:33:19,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:33:19,161 INFO L85 PathProgramCache]: Analyzing trace with hash 678997037, now seen corresponding path program 1 times [2021-11-25 20:33:19,161 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-25 20:33:19,162 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [476858021] [2021-11-25 20:33:19,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:33:19,162 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-25 20:33:19,162 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/mathsat [2021-11-25 20:33:19,163 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-25 20:33:19,171 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-25 20:33:19,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:33:19,256 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-25 20:33:19,258 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:33:19,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:33:19,293 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 20:33:19,293 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-25 20:33:19,298 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [476858021] [2021-11-25 20:33:19,299 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [476858021] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:33:19,299 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:33:19,299 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 20:33:19,300 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830524465] [2021-11-25 20:33:19,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:33:19,301 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:33:19,301 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-25 20:33:19,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:33:19,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:33:19,303 INFO L87 Difference]: Start difference. First operand 56 states and 62 transitions. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:33:19,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:33:19,327 INFO L93 Difference]: Finished difference Result 66 states and 73 transitions. [2021-11-25 20:33:19,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:33:19,328 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-11-25 20:33:19,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:33:19,331 INFO L225 Difference]: With dead ends: 66 [2021-11-25 20:33:19,332 INFO L226 Difference]: Without dead ends: 66 [2021-11-25 20:33:19,333 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:33:19,335 INFO L933 BasicCegarLoop]: 60 mSDtfsCounter, 10 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-25 20:33:19,337 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 118 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-25 20:33:19,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2021-11-25 20:33:19,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 57. [2021-11-25 20:33:19,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 40 states have (on average 1.575) internal successors, (63), 56 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:33:19,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 63 transitions. [2021-11-25 20:33:19,351 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 63 transitions. Word has length 8 [2021-11-25 20:33:19,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:33:19,354 INFO L470 AbstractCegarLoop]: Abstraction has 57 states and 63 transitions. [2021-11-25 20:33:19,354 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:33:19,354 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 63 transitions. [2021-11-25 20:33:19,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-25 20:33:19,355 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:33:19,355 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:33:19,370 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-25 20:33:19,570 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 [2021-11-25 20:33:19,570 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 19 more)] === [2021-11-25 20:33:19,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:33:19,571 INFO L85 PathProgramCache]: Analyzing trace with hash 638916372, now seen corresponding path program 1 times [2021-11-25 20:33:19,571 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-25 20:33:19,571 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [534781664] [2021-11-25 20:33:19,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:33:19,571 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-25 20:33:19,572 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/mathsat [2021-11-25 20:33:19,574 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-25 20:33:19,579 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-25 20:33:19,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:33:19,670 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-25 20:33:19,671 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:33:19,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:33:19,732 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 20:33:19,732 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-25 20:33:19,733 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [534781664] [2021-11-25 20:33:19,733 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [534781664] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:33:19,733 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:33:19,733 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 20:33:19,733 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869583849] [2021-11-25 20:33:19,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:33:19,734 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:33:19,734 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-25 20:33:19,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:33:19,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:33:19,735 INFO L87 Difference]: Start difference. First operand 57 states and 63 transitions. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:33:19,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:33:19,774 INFO L93 Difference]: Finished difference Result 63 states and 69 transitions. [2021-11-25 20:33:19,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:33:19,777 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-11-25 20:33:19,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:33:19,778 INFO L225 Difference]: With dead ends: 63 [2021-11-25 20:33:19,778 INFO L226 Difference]: Without dead ends: 63 [2021-11-25 20:33:19,778 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:33:19,779 INFO L933 BasicCegarLoop]: 60 mSDtfsCounter, 1 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-25 20:33:19,780 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 113 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-25 20:33:19,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2021-11-25 20:33:19,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 62. [2021-11-25 20:33:19,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 45 states have (on average 1.511111111111111) internal successors, (68), 61 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:33:19,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 68 transitions. [2021-11-25 20:33:19,785 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 68 transitions. Word has length 9 [2021-11-25 20:33:19,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:33:19,786 INFO L470 AbstractCegarLoop]: Abstraction has 62 states and 68 transitions. [2021-11-25 20:33:19,786 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:33:19,786 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 68 transitions. [2021-11-25 20:33:19,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-25 20:33:19,787 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:33:19,787 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:33:19,800 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-25 20:33:19,996 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 [2021-11-25 20:33:19,996 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr8REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 19 more)] === [2021-11-25 20:33:19,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:33:19,997 INFO L85 PathProgramCache]: Analyzing trace with hash 2114731710, now seen corresponding path program 1 times [2021-11-25 20:33:19,997 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-25 20:33:19,997 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [99313883] [2021-11-25 20:33:19,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:33:19,998 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-25 20:33:19,998 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/mathsat [2021-11-25 20:33:19,999 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-25 20:33:20,003 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-25 20:33:20,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:33:20,094 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-25 20:33:20,095 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:33:20,152 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:33:20,153 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 20:33:20,249 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:33:20,249 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-25 20:33:20,249 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [99313883] [2021-11-25 20:33:20,250 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [99313883] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 20:33:20,250 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1044007731] [2021-11-25 20:33:20,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:33:20,250 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-25 20:33:20,250 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/cvc4 [2021-11-25 20:33:20,259 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-25 20:33:20,260 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2021-11-25 20:33:20,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:33:20,415 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-25 20:33:20,416 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:33:20,473 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:33:20,473 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 20:33:20,536 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:33:20,536 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1044007731] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 20:33:20,537 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1120741575] [2021-11-25 20:33:20,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:33:20,537 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:33:20,537 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:33:20,539 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:33:20,548 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-25 20:33:20,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:33:20,629 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-25 20:33:20,630 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:33:20,650 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 20:33:20,771 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:33:20,772 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 20:33:20,772 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1120741575] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:33:20,772 INFO L186 FreeRefinementEngine]: Found 1 perfect and 4 imperfect interpolant sequences. [2021-11-25 20:33:20,772 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [4, 4, 4, 4] total 11 [2021-11-25 20:33:20,773 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523399943] [2021-11-25 20:33:20,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:33:20,774 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-25 20:33:20,774 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-25 20:33:20,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-25 20:33:20,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-11-25 20:33:20,775 INFO L87 Difference]: Start difference. First operand 62 states and 68 transitions. Second operand has 7 states, 6 states have (on average 2.5) internal successors, (15), 7 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:33:21,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:33:21,270 INFO L93 Difference]: Finished difference Result 113 states and 123 transitions. [2021-11-25 20:33:21,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-25 20:33:21,271 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.5) internal successors, (15), 7 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-11-25 20:33:21,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:33:21,272 INFO L225 Difference]: With dead ends: 113 [2021-11-25 20:33:21,272 INFO L226 Difference]: Without dead ends: 113 [2021-11-25 20:33:21,273 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=50, Invalid=160, Unknown=0, NotChecked=0, Total=210 [2021-11-25 20:33:21,274 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 262 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 262 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-25 20:33:21,274 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [262 Valid, 123 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-25 20:33:21,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2021-11-25 20:33:21,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 64. [2021-11-25 20:33:21,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 48 states have (on average 1.5208333333333333) internal successors, (73), 63 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:33:21,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 73 transitions. [2021-11-25 20:33:21,280 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 73 transitions. Word has length 15 [2021-11-25 20:33:21,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:33:21,281 INFO L470 AbstractCegarLoop]: Abstraction has 64 states and 73 transitions. [2021-11-25 20:33:21,281 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.5) internal successors, (15), 7 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:33:21,281 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 73 transitions. [2021-11-25 20:33:21,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-25 20:33:21,282 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:33:21,282 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:33:21,289 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/cvc4 --incremental --print-success --lang smt (7)] Forceful destruction successful, exit code 0 [2021-11-25 20:33:21,490 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (6)] Ended with exit code 0 [2021-11-25 20:33:21,702 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-25 20:33:21,883 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/cvc4 --incremental --print-success --lang smt,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:33:21,883 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr9REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 19 more)] === [2021-11-25 20:33:21,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:33:21,884 INFO L85 PathProgramCache]: Analyzing trace with hash 2114731711, now seen corresponding path program 1 times [2021-11-25 20:33:21,884 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-25 20:33:21,884 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [675229236] [2021-11-25 20:33:21,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:33:21,885 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-25 20:33:21,885 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/mathsat [2021-11-25 20:33:21,886 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-25 20:33:21,889 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-25 20:33:21,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:33:21,975 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-25 20:33:21,976 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:33:22,032 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:33:22,032 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 20:33:22,089 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:33:22,090 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-25 20:33:22,090 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [675229236] [2021-11-25 20:33:22,090 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [675229236] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 20:33:22,090 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1276294663] [2021-11-25 20:33:22,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:33:22,091 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-25 20:33:22,091 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/cvc4 [2021-11-25 20:33:22,095 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-25 20:33:22,119 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2021-11-25 20:33:22,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:33:22,247 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-25 20:33:22,248 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:33:22,295 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:33:22,295 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 20:33:22,343 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:33:22,343 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1276294663] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 20:33:22,343 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [217433301] [2021-11-25 20:33:22,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:33:22,343 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:33:22,344 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:33:22,347 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:33:22,350 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-11-25 20:33:22,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:33:22,417 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-25 20:33:22,418 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:33:22,461 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-25 20:33:22,461 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 20:33:22,462 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [217433301] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:33:22,462 INFO L186 FreeRefinementEngine]: Found 1 perfect and 4 imperfect interpolant sequences. [2021-11-25 20:33:22,462 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4, 4, 4, 4] total 8 [2021-11-25 20:33:22,462 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142509242] [2021-11-25 20:33:22,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:33:22,463 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 20:33:22,463 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-25 20:33:22,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 20:33:22,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-25 20:33:22,463 INFO L87 Difference]: Start difference. First operand 64 states and 73 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:33:22,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:33:22,526 INFO L93 Difference]: Finished difference Result 163 states and 180 transitions. [2021-11-25 20:33:22,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 20:33:22,527 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-11-25 20:33:22,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:33:22,528 INFO L225 Difference]: With dead ends: 163 [2021-11-25 20:33:22,528 INFO L226 Difference]: Without dead ends: 163 [2021-11-25 20:33:22,528 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-11-25 20:33:22,529 INFO L933 BasicCegarLoop]: 86 mSDtfsCounter, 106 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-25 20:33:22,530 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [106 Valid, 220 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-25 20:33:22,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2021-11-25 20:33:22,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 66. [2021-11-25 20:33:22,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 50 states have (on average 1.52) internal successors, (76), 65 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:33:22,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 76 transitions. [2021-11-25 20:33:22,536 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 76 transitions. Word has length 15 [2021-11-25 20:33:22,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:33:22,536 INFO L470 AbstractCegarLoop]: Abstraction has 66 states and 76 transitions. [2021-11-25 20:33:22,536 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:33:22,536 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 76 transitions. [2021-11-25 20:33:22,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-25 20:33:22,537 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:33:22,537 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:33:22,550 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-25 20:33:22,748 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/cvc4 --incremental --print-success --lang smt (10)] Forceful destruction successful, exit code 0 [2021-11-25 20:33:22,967 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-11-25 20:33:23,147 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/cvc4 --incremental --print-success --lang smt,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:33:23,147 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr11REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 19 more)] === [2021-11-25 20:33:23,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:33:23,147 INFO L85 PathProgramCache]: Analyzing trace with hash 2114731656, now seen corresponding path program 1 times [2021-11-25 20:33:23,148 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-25 20:33:23,148 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [537220642] [2021-11-25 20:33:23,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:33:23,148 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-25 20:33:23,148 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/mathsat [2021-11-25 20:33:23,149 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-25 20:33:23,151 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-25 20:33:23,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:33:23,229 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-25 20:33:23,230 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:33:23,272 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:33:23,272 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 20:33:23,345 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:33:23,346 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-25 20:33:23,346 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [537220642] [2021-11-25 20:33:23,346 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [537220642] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 20:33:23,346 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1737293789] [2021-11-25 20:33:23,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:33:23,346 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-25 20:33:23,346 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/cvc4 [2021-11-25 20:33:23,351 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-25 20:33:23,371 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2021-11-25 20:33:23,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:33:23,498 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-25 20:33:23,499 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:33:23,551 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:33:23,551 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 20:33:23,594 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:33:23,594 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1737293789] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 20:33:23,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1687025099] [2021-11-25 20:33:23,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:33:23,595 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:33:23,595 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:33:23,596 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:33:23,615 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-11-25 20:33:23,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:33:23,678 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-25 20:33:23,679 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:33:23,717 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:33:23,717 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 20:33:23,781 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:33:23,781 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1687025099] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 20:33:23,781 INFO L186 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2021-11-25 20:33:23,782 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4, 4, 4, 5] total 7 [2021-11-25 20:33:23,782 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458214316] [2021-11-25 20:33:23,782 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2021-11-25 20:33:23,782 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-25 20:33:23,783 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-25 20:33:23,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-25 20:33:23,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-11-25 20:33:23,783 INFO L87 Difference]: Start difference. First operand 66 states and 76 transitions. Second operand has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:33:23,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:33:23,829 INFO L93 Difference]: Finished difference Result 86 states and 99 transitions. [2021-11-25 20:33:23,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-25 20:33:23,829 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-11-25 20:33:23,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:33:23,830 INFO L225 Difference]: With dead ends: 86 [2021-11-25 20:33:23,830 INFO L226 Difference]: Without dead ends: 86 [2021-11-25 20:33:23,830 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-25 20:33:23,831 INFO L933 BasicCegarLoop]: 66 mSDtfsCounter, 99 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 237 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-25 20:33:23,831 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [99 Valid, 237 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-25 20:33:23,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2021-11-25 20:33:23,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 84. [2021-11-25 20:33:23,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 68 states have (on average 1.4558823529411764) internal successors, (99), 83 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:33:23,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 99 transitions. [2021-11-25 20:33:23,837 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 99 transitions. Word has length 15 [2021-11-25 20:33:23,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:33:23,837 INFO L470 AbstractCegarLoop]: Abstraction has 84 states and 99 transitions. [2021-11-25 20:33:23,837 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:33:23,837 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 99 transitions. [2021-11-25 20:33:23,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-25 20:33:23,838 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:33:23,839 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2021-11-25 20:33:23,874 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2021-11-25 20:33:24,041 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/cvc4 --incremental --print-success --lang smt (13)] Forceful destruction successful, exit code 0 [2021-11-25 20:33:24,246 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-11-25 20:33:24,439 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/cvc4 --incremental --print-success --lang smt,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 [2021-11-25 20:33:24,440 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 19 more)] === [2021-11-25 20:33:24,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:33:24,440 INFO L85 PathProgramCache]: Analyzing trace with hash -2097949020, now seen corresponding path program 1 times [2021-11-25 20:33:24,440 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-25 20:33:24,440 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1430060115] [2021-11-25 20:33:24,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:33:24,440 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-25 20:33:24,441 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/mathsat [2021-11-25 20:33:24,441 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-25 20:33:24,442 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-11-25 20:33:24,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:33:24,587 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-25 20:33:24,593 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:33:24,612 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 20:33:24,713 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-25 20:33:24,713 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 14 [2021-11-25 20:33:24,763 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:33:24,763 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 20:33:25,163 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:33:25,163 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-25 20:33:25,163 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1430060115] [2021-11-25 20:33:25,164 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1430060115] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 20:33:25,164 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [134755184] [2021-11-25 20:33:25,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:33:25,164 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-25 20:33:25,164 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/cvc4 [2021-11-25 20:33:25,167 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-25 20:33:25,191 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/cvc4 --incremental --print-success --lang smt (16)] Waiting until timeout for monitored process [2021-11-25 20:33:25,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:33:25,366 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-25 20:33:25,368 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:33:25,383 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 20:33:25,391 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 20:33:25,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:33:25,518 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2021-11-25 20:33:25,529 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-25 20:33:25,529 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 17 [2021-11-25 20:33:25,576 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:33:25,576 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 20:33:28,489 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:33:28,490 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [134755184] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 20:33:28,490 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [615395889] [2021-11-25 20:33:28,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:33:28,490 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:33:28,491 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:33:28,495 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:33:28,499 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2021-11-25 20:33:28,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:33:28,596 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-25 20:33:28,598 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:33:28,625 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 20:33:28,631 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 20:33:28,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:33:28,748 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2021-11-25 20:33:28,761 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-25 20:33:28,761 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 15 [2021-11-25 20:33:28,806 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:33:28,806 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 20:33:29,344 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:33:29,344 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [615395889] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 20:33:29,344 INFO L186 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2021-11-25 20:33:29,344 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 4, 4, 4, 4, 4] total 10 [2021-11-25 20:33:29,344 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795310219] [2021-11-25 20:33:29,345 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2021-11-25 20:33:29,345 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-25 20:33:29,345 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-25 20:33:29,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-25 20:33:29,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=79, Unknown=1, NotChecked=0, Total=110 [2021-11-25 20:33:29,346 INFO L87 Difference]: Start difference. First operand 84 states and 99 transitions. Second operand has 11 states, 10 states have (on average 4.6) internal successors, (46), 11 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:33:29,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:33:29,632 INFO L93 Difference]: Finished difference Result 97 states and 110 transitions. [2021-11-25 20:33:29,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 20:33:29,633 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 4.6) internal successors, (46), 11 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-11-25 20:33:29,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:33:29,634 INFO L225 Difference]: With dead ends: 97 [2021-11-25 20:33:29,634 INFO L226 Difference]: Without dead ends: 97 [2021-11-25 20:33:29,634 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 78 SyntacticMatches, 3 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=49, Invalid=106, Unknown=1, NotChecked=0, Total=156 [2021-11-25 20:33:29,635 INFO L933 BasicCegarLoop]: 34 mSDtfsCounter, 199 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 26 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-25 20:33:29,635 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [199 Valid, 66 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 63 Invalid, 0 Unknown, 26 Unchecked, 0.2s Time] [2021-11-25 20:33:29,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2021-11-25 20:33:29,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 83. [2021-11-25 20:33:29,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 68 states have (on average 1.411764705882353) internal successors, (96), 82 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:33:29,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 96 transitions. [2021-11-25 20:33:29,640 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 96 transitions. Word has length 16 [2021-11-25 20:33:29,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:33:29,640 INFO L470 AbstractCegarLoop]: Abstraction has 83 states and 96 transitions. [2021-11-25 20:33:29,640 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 4.6) internal successors, (46), 11 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:33:29,640 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 96 transitions. [2021-11-25 20:33:29,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-25 20:33:29,641 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:33:29,641 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:33:29,647 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/cvc4 --incremental --print-success --lang smt (16)] Forceful destruction successful, exit code 0 [2021-11-25 20:33:29,864 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2021-11-25 20:33:30,049 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2021-11-25 20:33:30,242 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/cvc4 --incremental --print-success --lang smt,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 [2021-11-25 20:33:30,242 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr11REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 19 more)] === [2021-11-25 20:33:30,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:33:30,242 INFO L85 PathProgramCache]: Analyzing trace with hash -1891969321, now seen corresponding path program 2 times [2021-11-25 20:33:30,243 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-25 20:33:30,243 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [444853971] [2021-11-25 20:33:30,243 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-25 20:33:30,243 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-25 20:33:30,243 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/mathsat [2021-11-25 20:33:30,244 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-25 20:33:30,262 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2021-11-25 20:33:30,366 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-25 20:33:30,366 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-25 20:33:30,373 INFO L263 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-25 20:33:30,374 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:33:30,439 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:33:30,439 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 20:33:30,488 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:33:30,489 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-25 20:33:30,489 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [444853971] [2021-11-25 20:33:30,489 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [444853971] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 20:33:30,489 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1368583146] [2021-11-25 20:33:30,489 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-25 20:33:30,490 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-25 20:33:30,490 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/cvc4 [2021-11-25 20:33:30,490 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-25 20:33:30,515 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/cvc4 --incremental --print-success --lang smt (19)] Waiting until timeout for monitored process [2021-11-25 20:33:30,663 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-25 20:33:30,663 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-25 20:33:30,665 INFO L263 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-25 20:33:30,666 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:33:30,719 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:33:30,719 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 20:33:30,769 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:33:30,769 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1368583146] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 20:33:30,769 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [712775274] [2021-11-25 20:33:30,769 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-25 20:33:30,769 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:33:30,770 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:33:30,771 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:33:30,801 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2021-11-25 20:33:30,882 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-25 20:33:30,882 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-25 20:33:30,885 INFO L263 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-25 20:33:30,886 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:33:30,960 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:33:30,960 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 20:33:31,009 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:33:31,009 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [712775274] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 20:33:31,009 INFO L186 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2021-11-25 20:33:31,010 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4, 4, 4, 4] total 4 [2021-11-25 20:33:31,010 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317162174] [2021-11-25 20:33:31,010 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2021-11-25 20:33:31,010 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 20:33:31,010 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-25 20:33:31,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 20:33:31,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 20:33:31,011 INFO L87 Difference]: Start difference. First operand 83 states and 96 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:33:31,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:33:31,109 INFO L93 Difference]: Finished difference Result 83 states and 93 transitions. [2021-11-25 20:33:31,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 20:33:31,110 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2021-11-25 20:33:31,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:33:31,111 INFO L225 Difference]: With dead ends: 83 [2021-11-25 20:33:31,111 INFO L226 Difference]: Without dead ends: 83 [2021-11-25 20:33:31,111 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:33:31,112 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 103 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-25 20:33:31,112 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [103 Valid, 56 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-25 20:33:31,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2021-11-25 20:33:31,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2021-11-25 20:33:31,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 68 states have (on average 1.3676470588235294) internal successors, (93), 82 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:33:31,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 93 transitions. [2021-11-25 20:33:31,116 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 93 transitions. Word has length 22 [2021-11-25 20:33:31,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:33:31,116 INFO L470 AbstractCegarLoop]: Abstraction has 83 states and 93 transitions. [2021-11-25 20:33:31,116 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:33:31,117 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 93 transitions. [2021-11-25 20:33:31,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-25 20:33:31,117 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:33:31,117 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:33:31,151 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2021-11-25 20:33:31,349 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2021-11-25 20:33:31,541 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/cvc4 --incremental --print-success --lang smt (19)] Forceful destruction successful, exit code 0 [2021-11-25 20:33:31,739 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/cvc4 --incremental --print-success --lang smt [2021-11-25 20:33:31,739 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr11REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 19 more)] === [2021-11-25 20:33:31,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:33:31,740 INFO L85 PathProgramCache]: Analyzing trace with hash -1779022436, now seen corresponding path program 1 times [2021-11-25 20:33:31,740 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-25 20:33:31,740 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1863970566] [2021-11-25 20:33:31,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:33:31,740 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-25 20:33:31,741 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/mathsat [2021-11-25 20:33:31,741 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-25 20:33:31,742 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2021-11-25 20:33:31,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:33:31,879 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 14 conjunts are in the unsatisfiable core [2021-11-25 20:33:31,882 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:33:31,910 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 20:33:32,070 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-25 20:33:32,071 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 20:33:32,071 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-25 20:33:32,071 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1863970566] [2021-11-25 20:33:32,071 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1863970566] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:33:32,071 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:33:32,071 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-25 20:33:32,071 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187959423] [2021-11-25 20:33:32,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:33:32,072 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-25 20:33:32,072 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-25 20:33:32,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-25 20:33:32,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-25 20:33:32,072 INFO L87 Difference]: Start difference. First operand 83 states and 93 transitions. Second operand has 7 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 7 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:33:32,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:33:32,624 INFO L93 Difference]: Finished difference Result 118 states and 129 transitions. [2021-11-25 20:33:32,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-25 20:33:32,625 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 7 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2021-11-25 20:33:32,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:33:32,626 INFO L225 Difference]: With dead ends: 118 [2021-11-25 20:33:32,626 INFO L226 Difference]: Without dead ends: 118 [2021-11-25 20:33:32,626 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-11-25 20:33:32,627 INFO L933 BasicCegarLoop]: 64 mSDtfsCounter, 265 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 265 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-25 20:33:32,627 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [265 Valid, 101 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-25 20:33:32,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2021-11-25 20:33:32,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 83. [2021-11-25 20:33:32,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 68 states have (on average 1.338235294117647) internal successors, (91), 82 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:33:32,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 91 transitions. [2021-11-25 20:33:32,631 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 91 transitions. Word has length 23 [2021-11-25 20:33:32,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:33:32,636 INFO L470 AbstractCegarLoop]: Abstraction has 83 states and 91 transitions. [2021-11-25 20:33:32,636 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 7 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:33:32,636 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 91 transitions. [2021-11-25 20:33:32,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-25 20:33:32,637 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:33:32,637 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:33:32,653 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2021-11-25 20:33:32,838 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 [2021-11-25 20:33:32,838 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 19 more)] === [2021-11-25 20:33:32,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:33:32,839 INFO L85 PathProgramCache]: Analyzing trace with hash -244809887, now seen corresponding path program 1 times [2021-11-25 20:33:32,839 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-25 20:33:32,839 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1294351136] [2021-11-25 20:33:32,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:33:32,839 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-25 20:33:32,839 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/mathsat [2021-11-25 20:33:32,840 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-25 20:33:32,842 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2021-11-25 20:33:32,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:33:32,951 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-25 20:33:32,952 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:33:33,022 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-25 20:33:33,022 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 20:33:33,022 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-25 20:33:33,023 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1294351136] [2021-11-25 20:33:33,023 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1294351136] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:33:33,023 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:33:33,023 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 20:33:33,023 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788547106] [2021-11-25 20:33:33,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:33:33,024 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 20:33:33,024 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-25 20:33:33,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 20:33:33,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-25 20:33:33,025 INFO L87 Difference]: Start difference. First operand 83 states and 91 transitions. Second operand has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:33:33,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:33:33,056 INFO L93 Difference]: Finished difference Result 101 states and 109 transitions. [2021-11-25 20:33:33,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 20:33:33,057 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2021-11-25 20:33:33,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:33:33,058 INFO L225 Difference]: With dead ends: 101 [2021-11-25 20:33:33,058 INFO L226 Difference]: Without dead ends: 101 [2021-11-25 20:33:33,058 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-25 20:33:33,059 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 65 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-25 20:33:33,059 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [65 Valid, 106 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-25 20:33:33,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2021-11-25 20:33:33,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 84. [2021-11-25 20:33:33,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 69 states have (on average 1.318840579710145) internal successors, (91), 83 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:33:33,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 91 transitions. [2021-11-25 20:33:33,063 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 91 transitions. Word has length 25 [2021-11-25 20:33:33,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:33:33,064 INFO L470 AbstractCegarLoop]: Abstraction has 84 states and 91 transitions. [2021-11-25 20:33:33,064 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:33:33,064 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 91 transitions. [2021-11-25 20:33:33,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-25 20:33:33,065 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:33:33,065 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:33:33,079 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2021-11-25 20:33:33,275 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 [2021-11-25 20:33:33,276 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 19 more)] === [2021-11-25 20:33:33,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:33:33,276 INFO L85 PathProgramCache]: Analyzing trace with hash -1962551635, now seen corresponding path program 1 times [2021-11-25 20:33:33,276 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-25 20:33:33,277 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1416389448] [2021-11-25 20:33:33,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:33:33,277 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-25 20:33:33,277 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/mathsat [2021-11-25 20:33:33,278 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-25 20:33:33,278 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2021-11-25 20:33:33,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:33:33,439 INFO L263 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-25 20:33:33,440 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:33:33,558 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-25 20:33:33,558 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 20:33:33,691 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-25 20:33:33,691 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-25 20:33:33,691 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1416389448] [2021-11-25 20:33:33,691 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1416389448] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 20:33:33,691 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1218248507] [2021-11-25 20:33:33,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:33:33,692 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-25 20:33:33,692 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/cvc4 [2021-11-25 20:33:33,695 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-25 20:33:33,711 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/cvc4 --incremental --print-success --lang smt (24)] Waiting until timeout for monitored process [2021-11-25 20:33:33,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:33:33,912 INFO L263 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-25 20:33:33,912 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:33:34,014 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-25 20:33:34,014 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 20:33:34,104 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-25 20:33:34,104 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1218248507] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 20:33:34,104 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1355330505] [2021-11-25 20:33:34,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:33:34,104 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:33:34,104 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:33:34,105 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:33:34,106 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2021-11-25 20:33:34,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:33:34,220 INFO L263 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-25 20:33:34,222 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:33:34,240 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 20:33:34,482 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-25 20:33:34,482 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 20:33:34,482 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1355330505] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:33:34,483 INFO L186 FreeRefinementEngine]: Found 1 perfect and 4 imperfect interpolant sequences. [2021-11-25 20:33:34,483 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5, 5, 5, 5] total 13 [2021-11-25 20:33:34,483 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103079867] [2021-11-25 20:33:34,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:33:34,483 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-25 20:33:34,483 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-25 20:33:34,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-25 20:33:34,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2021-11-25 20:33:34,484 INFO L87 Difference]: Start difference. First operand 84 states and 91 transitions. Second operand has 7 states, 6 states have (on average 5.0) internal successors, (30), 7 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:33:34,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:33:34,900 INFO L93 Difference]: Finished difference Result 103 states and 111 transitions. [2021-11-25 20:33:34,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-25 20:33:34,900 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 5.0) internal successors, (30), 7 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2021-11-25 20:33:34,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:33:34,901 INFO L225 Difference]: With dead ends: 103 [2021-11-25 20:33:34,901 INFO L226 Difference]: Without dead ends: 103 [2021-11-25 20:33:34,902 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 128 SyntacticMatches, 7 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=59, Invalid=213, Unknown=0, NotChecked=0, Total=272 [2021-11-25 20:33:34,902 INFO L933 BasicCegarLoop]: 33 mSDtfsCounter, 237 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 237 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-25 20:33:34,903 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [237 Valid, 95 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-25 20:33:34,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2021-11-25 20:33:34,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 87. [2021-11-25 20:33:34,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 72 states have (on average 1.3472222222222223) internal successors, (97), 86 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:33:34,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 97 transitions. [2021-11-25 20:33:34,909 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 97 transitions. Word has length 30 [2021-11-25 20:33:34,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:33:34,909 INFO L470 AbstractCegarLoop]: Abstraction has 87 states and 97 transitions. [2021-11-25 20:33:34,909 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 5.0) internal successors, (30), 7 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:33:34,910 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 97 transitions. [2021-11-25 20:33:34,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-25 20:33:34,914 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:33:34,914 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:33:34,935 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2021-11-25 20:33:35,130 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (23)] Ended with exit code 0 [2021-11-25 20:33:35,326 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/cvc4 --incremental --print-success --lang smt (24)] Forceful destruction successful, exit code 0 [2021-11-25 20:33:35,523 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3,24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/cvc4 --incremental --print-success --lang smt [2021-11-25 20:33:35,523 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr15REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 19 more)] === [2021-11-25 20:33:35,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:33:35,524 INFO L85 PathProgramCache]: Analyzing trace with hash -1962551634, now seen corresponding path program 1 times [2021-11-25 20:33:35,524 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-25 20:33:35,524 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [351330589] [2021-11-25 20:33:35,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:33:35,524 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-25 20:33:35,525 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/mathsat [2021-11-25 20:33:35,526 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-25 20:33:35,548 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2021-11-25 20:33:35,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:33:35,708 INFO L263 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-25 20:33:35,709 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:33:35,822 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-25 20:33:35,822 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 20:33:35,948 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-25 20:33:35,949 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-25 20:33:35,949 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [351330589] [2021-11-25 20:33:35,949 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [351330589] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 20:33:35,949 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [683699091] [2021-11-25 20:33:35,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:33:35,949 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-25 20:33:35,949 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/cvc4 [2021-11-25 20:33:35,951 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-25 20:33:35,975 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/cvc4 --incremental --print-success --lang smt (27)] Waiting until timeout for monitored process [2021-11-25 20:33:36,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:33:36,179 INFO L263 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-25 20:33:36,180 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:33:36,275 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-25 20:33:36,275 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 20:33:36,355 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-25 20:33:36,355 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [683699091] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 20:33:36,355 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1418074136] [2021-11-25 20:33:36,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:33:36,356 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:33:36,356 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:33:36,356 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:33:36,357 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2021-11-25 20:33:36,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:33:36,466 INFO L263 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-25 20:33:36,466 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:33:36,586 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-25 20:33:36,586 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 20:33:36,703 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-25 20:33:36,703 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1418074136] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 20:33:36,703 INFO L186 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2021-11-25 20:33:36,704 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 6, 6] total 10 [2021-11-25 20:33:36,704 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937140645] [2021-11-25 20:33:36,704 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2021-11-25 20:33:36,704 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-25 20:33:36,704 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-25 20:33:36,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-25 20:33:36,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2021-11-25 20:33:36,705 INFO L87 Difference]: Start difference. First operand 87 states and 97 transitions. Second operand has 10 states, 10 states have (on average 4.7) internal successors, (47), 10 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:33:36,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:33:36,817 INFO L93 Difference]: Finished difference Result 139 states and 159 transitions. [2021-11-25 20:33:36,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-25 20:33:36,818 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.7) internal successors, (47), 10 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2021-11-25 20:33:36,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:33:36,819 INFO L225 Difference]: With dead ends: 139 [2021-11-25 20:33:36,819 INFO L226 Difference]: Without dead ends: 139 [2021-11-25 20:33:36,819 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-11-25 20:33:36,820 INFO L933 BasicCegarLoop]: 69 mSDtfsCounter, 292 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 292 SdHoareTripleChecker+Valid, 257 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-25 20:33:36,820 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [292 Valid, 257 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-25 20:33:36,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2021-11-25 20:33:36,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 103. [2021-11-25 20:33:36,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 88 states have (on average 1.3863636363636365) internal successors, (122), 102 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:33:36,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 122 transitions. [2021-11-25 20:33:36,824 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 122 transitions. Word has length 30 [2021-11-25 20:33:36,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:33:36,824 INFO L470 AbstractCegarLoop]: Abstraction has 103 states and 122 transitions. [2021-11-25 20:33:36,824 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.7) internal successors, (47), 10 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:33:36,825 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 122 transitions. [2021-11-25 20:33:36,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-25 20:33:36,825 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:33:36,825 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:33:36,844 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (26)] Forceful destruction successful, exit code 0 [2021-11-25 20:33:37,061 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2021-11-25 20:33:37,243 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/cvc4 --incremental --print-success --lang smt (27)] Forceful destruction successful, exit code 0 [2021-11-25 20:33:37,441 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3,28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/cvc4 --incremental --print-success --lang smt [2021-11-25 20:33:37,441 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr8REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 19 more)] === [2021-11-25 20:33:37,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:33:37,442 INFO L85 PathProgramCache]: Analyzing trace with hash -669697558, now seen corresponding path program 1 times [2021-11-25 20:33:37,442 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-25 20:33:37,442 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1352555788] [2021-11-25 20:33:37,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:33:37,442 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-25 20:33:37,443 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/mathsat [2021-11-25 20:33:37,443 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-25 20:33:37,445 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2021-11-25 20:33:37,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:33:37,579 INFO L263 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-25 20:33:37,579 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:33:37,663 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-25 20:33:37,663 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 20:33:37,787 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-25 20:33:37,787 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-25 20:33:37,787 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1352555788] [2021-11-25 20:33:37,787 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1352555788] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 20:33:37,787 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [189207001] [2021-11-25 20:33:37,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:33:37,787 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-25 20:33:37,788 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/cvc4 [2021-11-25 20:33:37,791 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-25 20:33:37,807 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/cvc4 --incremental --print-success --lang smt (30)] Waiting until timeout for monitored process [2021-11-25 20:33:38,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:33:38,014 INFO L263 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-25 20:33:38,015 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:33:38,085 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-25 20:33:38,085 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 20:33:38,141 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-25 20:33:38,141 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [189207001] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 20:33:38,142 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [932051382] [2021-11-25 20:33:38,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:33:38,142 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:33:38,142 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:33:38,143 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:33:38,165 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2021-11-25 20:33:38,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:33:38,292 INFO L263 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-25 20:33:38,293 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:33:38,349 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-25 20:33:38,349 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 20:33:38,400 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-25 20:33:38,400 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [932051382] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 20:33:38,400 INFO L186 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2021-11-25 20:33:38,400 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6, 6, 6, 6] total 10 [2021-11-25 20:33:38,400 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875648964] [2021-11-25 20:33:38,400 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2021-11-25 20:33:38,401 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-25 20:33:38,401 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-25 20:33:38,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-25 20:33:38,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2021-11-25 20:33:38,402 INFO L87 Difference]: Start difference. First operand 103 states and 122 transitions. Second operand has 10 states, 10 states have (on average 3.6) internal successors, (36), 10 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:33:38,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:33:38,559 INFO L93 Difference]: Finished difference Result 206 states and 238 transitions. [2021-11-25 20:33:38,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-25 20:33:38,560 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.6) internal successors, (36), 10 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-11-25 20:33:38,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:33:38,561 INFO L225 Difference]: With dead ends: 206 [2021-11-25 20:33:38,561 INFO L226 Difference]: Without dead ends: 206 [2021-11-25 20:33:38,562 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 172 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2021-11-25 20:33:38,562 INFO L933 BasicCegarLoop]: 69 mSDtfsCounter, 309 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 309 SdHoareTripleChecker+Valid, 406 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-25 20:33:38,563 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [309 Valid, 406 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-25 20:33:38,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2021-11-25 20:33:38,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 107. [2021-11-25 20:33:38,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 92 states have (on average 1.3695652173913044) internal successors, (126), 106 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:33:38,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 126 transitions. [2021-11-25 20:33:38,568 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 126 transitions. Word has length 31 [2021-11-25 20:33:38,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:33:38,568 INFO L470 AbstractCegarLoop]: Abstraction has 107 states and 126 transitions. [2021-11-25 20:33:38,568 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.6) internal successors, (36), 10 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:33:38,569 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 126 transitions. [2021-11-25 20:33:38,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-25 20:33:38,569 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:33:38,570 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:33:38,575 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/cvc4 --incremental --print-success --lang smt (30)] Forceful destruction successful, exit code 0 [2021-11-25 20:33:38,792 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Ended with exit code 0 [2021-11-25 20:33:38,980 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (29)] Forceful destruction successful, exit code 0 [2021-11-25 20:33:39,173 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/cvc4 --incremental --print-success --lang smt,31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 [2021-11-25 20:33:39,173 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr10REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 19 more)] === [2021-11-25 20:33:39,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:33:39,173 INFO L85 PathProgramCache]: Analyzing trace with hash -669697613, now seen corresponding path program 1 times [2021-11-25 20:33:39,174 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-25 20:33:39,174 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [100574925] [2021-11-25 20:33:39,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:33:39,174 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-25 20:33:39,174 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/mathsat [2021-11-25 20:33:39,175 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-25 20:33:39,176 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (32)] Waiting until timeout for monitored process [2021-11-25 20:33:39,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:33:39,434 INFO L263 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 33 conjunts are in the unsatisfiable core [2021-11-25 20:33:39,436 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:33:39,468 INFO L354 Elim1Store]: treesize reduction 8, result has 60.0 percent of original size [2021-11-25 20:33:39,469 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 22 [2021-11-25 20:33:39,785 INFO L354 Elim1Store]: treesize reduction 9, result has 64.0 percent of original size [2021-11-25 20:33:39,785 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 30 treesize of output 39 [2021-11-25 20:33:39,904 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:33:39,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:33:39,951 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:33:39,999 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-25 20:33:39,999 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 38 [2021-11-25 20:33:40,343 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 32 [2021-11-25 20:33:40,442 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 21 [2021-11-25 20:33:40,510 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-25 20:33:40,511 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 20:33:43,177 INFO L354 Elim1Store]: treesize reduction 5, result has 70.6 percent of original size [2021-11-25 20:33:43,178 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 40 [2021-11-25 20:33:43,190 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1075 (Array (_ BitVec 32) (_ BitVec 32)))) (= (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_1075) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) (bvadd |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| (_ bv4 32))) |c_ULTIMATE.start_dll_create_~head~0#1.base|)) is different from false [2021-11-25 20:33:43,212 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1075 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1074 (_ BitVec 32))) (= (select (select (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) (bvadd |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| (_ bv8 32)) v_ArrVal_1074)) |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_1075) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) (bvadd |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| (_ bv4 32))) |c_ULTIMATE.start_dll_create_~head~0#1.base|)) is different from false [2021-11-25 20:33:43,268 INFO L354 Elim1Store]: treesize reduction 27, result has 43.8 percent of original size [2021-11-25 20:33:43,268 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 33 [2021-11-25 20:33:43,275 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 24 [2021-11-25 20:33:43,281 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:33:43,547 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 2 not checked. [2021-11-25 20:33:43,547 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-25 20:33:43,547 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [100574925] [2021-11-25 20:33:43,547 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [100574925] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 20:33:43,547 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [207668089] [2021-11-25 20:33:43,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:33:43,548 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-25 20:33:43,548 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/cvc4 [2021-11-25 20:33:43,551 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-25 20:33:43,569 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/cvc4 --incremental --print-success --lang smt (33)] Waiting until timeout for monitored process [2021-11-25 20:33:43,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:33:43,866 INFO L263 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 35 conjunts are in the unsatisfiable core [2021-11-25 20:33:43,868 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:33:43,943 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-11-25 20:33:43,943 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 19 [2021-11-25 20:33:44,172 INFO L354 Elim1Store]: treesize reduction 38, result has 39.7 percent of original size [2021-11-25 20:33:44,172 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 30 treesize of output 47 [2021-11-25 20:33:44,321 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:33:44,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:33:44,440 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:33:44,538 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-25 20:33:44,538 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 42 [2021-11-25 20:33:45,232 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 32 [2021-11-25 20:33:45,682 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 21 [2021-11-25 20:33:45,919 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-25 20:33:45,919 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 20:33:46,695 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1136 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_1136) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) (bvadd |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| (_ bv4 32)))))))))))))))))))))) is different from false [2021-11-25 20:33:46,723 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1135 (_ BitVec 32)) (v_ArrVal_1136 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (select (select (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) (bvadd |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| (_ bv8 32)) v_ArrVal_1135)) |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_1136) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) (bvadd |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| (_ bv4 32))))))))))))))))))))) (_ bv1 1)))) is different from false [2021-11-25 20:33:46,763 INFO L354 Elim1Store]: treesize reduction 27, result has 43.8 percent of original size [2021-11-25 20:33:46,763 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 49 treesize of output 55 [2021-11-25 20:33:46,767 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 68 [2021-11-25 20:33:46,773 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 29 [2021-11-25 20:34:03,649 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 2 not checked. [2021-11-25 20:34:03,649 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [207668089] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 20:34:03,649 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1059515187] [2021-11-25 20:34:03,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:34:03,649 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:34:03,650 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:34:03,651 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:34:03,654 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2021-11-25 20:34:03,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:34:03,795 INFO L263 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 32 conjunts are in the unsatisfiable core [2021-11-25 20:34:03,797 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:34:03,810 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 20:34:03,952 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-25 20:34:03,952 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2021-11-25 20:34:03,995 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:34:04,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:34:04,026 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:34:04,088 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-25 20:34:04,088 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 38 [2021-11-25 20:34:04,225 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 33 [2021-11-25 20:34:04,340 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 21 [2021-11-25 20:34:04,355 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 11 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-25 20:34:04,355 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 20:34:05,255 INFO L354 Elim1Store]: treesize reduction 5, result has 70.6 percent of original size [2021-11-25 20:34:05,255 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 39 [2021-11-25 20:34:05,265 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1197 (Array (_ BitVec 32) (_ BitVec 32)))) (= (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_1197) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) (bvadd |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| (_ bv4 32))) |c_ULTIMATE.start_dll_create_~head~0#1.base|)) is different from false [2021-11-25 20:34:05,283 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1197 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1196 (_ BitVec 32))) (= (select (select (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) (bvadd |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| (_ bv8 32)) v_ArrVal_1196)) |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_1197) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) (bvadd |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| (_ bv4 32))) |c_ULTIMATE.start_dll_create_~head~0#1.base|)) is different from false [2021-11-25 20:34:05,331 INFO L354 Elim1Store]: treesize reduction 27, result has 43.8 percent of original size [2021-11-25 20:34:05,331 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 33 [2021-11-25 20:34:05,334 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 24 [2021-11-25 20:34:05,338 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:34:05,393 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 2 not checked. [2021-11-25 20:34:05,393 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1059515187] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 20:34:05,393 INFO L186 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2021-11-25 20:34:05,394 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 14, 13, 14, 13, 14] total 45 [2021-11-25 20:34:05,394 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388643176] [2021-11-25 20:34:05,394 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2021-11-25 20:34:05,395 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2021-11-25 20:34:05,395 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-25 20:34:05,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2021-11-25 20:34:05,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=177, Invalid=1394, Unknown=13, NotChecked=486, Total=2070 [2021-11-25 20:34:05,397 INFO L87 Difference]: Start difference. First operand 107 states and 126 transitions. Second operand has 46 states, 45 states have (on average 2.422222222222222) internal successors, (109), 46 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:34:07,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:34:07,892 INFO L93 Difference]: Finished difference Result 108 states and 128 transitions. [2021-11-25 20:34:07,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-25 20:34:07,892 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 45 states have (on average 2.422222222222222) internal successors, (109), 46 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-11-25 20:34:07,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:34:07,894 INFO L225 Difference]: With dead ends: 108 [2021-11-25 20:34:07,894 INFO L226 Difference]: Without dead ends: 108 [2021-11-25 20:34:07,896 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 114 SyntacticMatches, 30 SemanticMatches, 55 ConstructedPredicates, 6 IntricatePredicates, 0 DeprecatedPredicates, 1025 ImplicationChecksByTransitivity, 22.9s TimeCoverageRelationStatistics Valid=384, Invalid=2177, Unknown=13, NotChecked=618, Total=3192 [2021-11-25 20:34:07,897 INFO L933 BasicCegarLoop]: 45 mSDtfsCounter, 88 mSDsluCounter, 886 mSDsCounter, 0 mSdLazyCounter, 289 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 931 SdHoareTripleChecker+Invalid, 659 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 355 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-11-25 20:34:07,897 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [88 Valid, 931 Invalid, 659 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 289 Invalid, 0 Unknown, 355 Unchecked, 0.9s Time] [2021-11-25 20:34:07,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2021-11-25 20:34:07,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 108. [2021-11-25 20:34:07,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 93 states have (on average 1.3763440860215055) internal successors, (128), 107 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:34:07,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 128 transitions. [2021-11-25 20:34:07,902 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 128 transitions. Word has length 31 [2021-11-25 20:34:07,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:34:07,903 INFO L470 AbstractCegarLoop]: Abstraction has 108 states and 128 transitions. [2021-11-25 20:34:07,903 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 45 states have (on average 2.422222222222222) internal successors, (109), 46 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:34:07,903 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 128 transitions. [2021-11-25 20:34:07,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-25 20:34:07,904 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:34:07,904 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:34:07,917 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (32)] Ended with exit code 0 [2021-11-25 20:34:08,119 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/cvc4 --incremental --print-success --lang smt (33)] Ended with exit code 0 [2021-11-25 20:34:08,337 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Ended with exit code 0 [2021-11-25 20:34:08,517 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3,33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/cvc4 --incremental --print-success --lang smt,34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:34:08,517 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr11REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 19 more)] === [2021-11-25 20:34:08,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:34:08,518 INFO L85 PathProgramCache]: Analyzing trace with hash -669697612, now seen corresponding path program 1 times [2021-11-25 20:34:08,518 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-25 20:34:08,518 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [129680158] [2021-11-25 20:34:08,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:34:08,518 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-25 20:34:08,518 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/mathsat [2021-11-25 20:34:08,519 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-25 20:34:08,520 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (35)] Waiting until timeout for monitored process [2021-11-25 20:34:08,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:34:08,725 INFO L263 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 45 conjunts are in the unsatisfiable core [2021-11-25 20:34:08,727 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:34:08,737 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 20:34:08,748 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 20:34:08,869 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-25 20:34:08,869 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 17 [2021-11-25 20:34:08,881 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2021-11-25 20:34:08,951 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:34:08,959 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:34:09,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:34:09,050 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:34:09,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:34:09,064 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:34:09,139 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-25 20:34:09,139 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 46 treesize of output 45 [2021-11-25 20:34:09,150 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 24 [2021-11-25 20:34:09,547 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2021-11-25 20:34:09,561 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 24 [2021-11-25 20:34:09,725 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-11-25 20:34:09,730 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2021-11-25 20:34:09,835 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 11 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-25 20:34:09,835 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 20:34:11,462 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_1263 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1264 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (bvadd |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| (_ bv4 32)))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_1263) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) .cse0) (_ bv4 32)) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_1264) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) .cse0))))) (forall ((v_ArrVal_1263 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_1263) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) (bvadd |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| (_ bv4 32))))) (bvule .cse1 (bvadd .cse1 (_ bv4 32)))))) is different from false [2021-11-25 20:34:11,517 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_1263 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1260 (_ BitVec 32))) (let ((.cse0 (select (select (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) (bvadd |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| (_ bv8 32)) v_ArrVal_1260)) |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_1263) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) (bvadd |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| (_ bv4 32))))) (bvule .cse0 (bvadd (_ bv4 32) .cse0)))) (forall ((v_ArrVal_1259 (_ BitVec 32)) (v_ArrVal_1263 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1264 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1260 (_ BitVec 32))) (let ((.cse1 (bvadd |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| (_ bv8 32))) (.cse2 (bvadd |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| (_ bv4 32)))) (bvule (bvadd (_ bv4 32) (select (select (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) .cse1 v_ArrVal_1260)) |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_1263) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) .cse2)) (select |c_#length| (select (select (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) .cse1 v_ArrVal_1259)) |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_1264) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) .cse2)))))) is different from false [2021-11-25 20:34:11,575 INFO L354 Elim1Store]: treesize reduction 27, result has 43.8 percent of original size [2021-11-25 20:34:11,576 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 53 treesize of output 44 [2021-11-25 20:34:11,579 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 32 [2021-11-25 20:34:11,587 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2021-11-25 20:34:11,642 INFO L354 Elim1Store]: treesize reduction 27, result has 43.8 percent of original size [2021-11-25 20:34:11,642 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 55 treesize of output 61 [2021-11-25 20:34:11,649 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:34:11,664 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:34:11,664 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 40 treesize of output 46 [2021-11-25 20:34:11,674 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:34:11,683 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 21 [2021-11-25 20:34:11,687 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:34:11,690 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2021-11-25 20:34:12,767 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 2 not checked. [2021-11-25 20:34:12,768 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-25 20:34:12,768 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [129680158] [2021-11-25 20:34:12,768 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [129680158] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 20:34:12,768 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [995827675] [2021-11-25 20:34:12,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:34:12,768 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-25 20:34:12,769 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/cvc4 [2021-11-25 20:34:12,775 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-25 20:34:12,776 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/cvc4 --incremental --print-success --lang smt (36)] Waiting until timeout for monitored process [2021-11-25 20:34:13,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:34:13,223 INFO L263 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 46 conjunts are in the unsatisfiable core [2021-11-25 20:34:13,226 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:34:13,237 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 20:34:13,249 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 20:34:13,376 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-25 20:34:13,377 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 15 [2021-11-25 20:34:13,386 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2021-11-25 20:34:13,434 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:34:13,454 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:34:13,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:34:13,483 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:34:13,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:34:13,500 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:34:13,571 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-25 20:34:13,572 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 46 treesize of output 45 [2021-11-25 20:34:13,579 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 24 [2021-11-25 20:34:13,752 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2021-11-25 20:34:13,759 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 24 [2021-11-25 20:34:13,841 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-11-25 20:34:13,848 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2021-11-25 20:34:13,872 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 11 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-25 20:34:13,873 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 20:34:15,056 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_1333 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1334 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (bvadd |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| (_ bv4 32)))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_1333) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) .cse0) (_ bv4 32)) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_1334) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) .cse0))))) (forall ((v_ArrVal_1333 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_1333) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) (bvadd |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| (_ bv4 32))))) (bvule .cse1 (bvadd .cse1 (_ bv4 32)))))) is different from false [2021-11-25 20:34:15,110 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_1333 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1330 (_ BitVec 32))) (let ((.cse0 (select (select (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) (bvadd |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| (_ bv8 32)) v_ArrVal_1330)) |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_1333) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) (bvadd |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| (_ bv4 32))))) (bvule .cse0 (bvadd (_ bv4 32) .cse0)))) (forall ((v_ArrVal_1328 (_ BitVec 32)) (v_ArrVal_1333 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1334 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1330 (_ BitVec 32))) (let ((.cse1 (bvadd |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| (_ bv8 32))) (.cse2 (bvadd |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| (_ bv4 32)))) (bvule (bvadd (_ bv4 32) (select (select (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) .cse1 v_ArrVal_1330)) |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_1333) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) .cse2)) (select |c_#length| (select (select (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) .cse1 v_ArrVal_1328)) |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_1334) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) .cse2)))))) is different from false [2021-11-25 20:34:15,173 INFO L354 Elim1Store]: treesize reduction 27, result has 43.8 percent of original size [2021-11-25 20:34:15,173 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 53 treesize of output 44 [2021-11-25 20:34:15,176 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 32 [2021-11-25 20:34:15,184 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2021-11-25 20:34:15,257 INFO L354 Elim1Store]: treesize reduction 27, result has 43.8 percent of original size [2021-11-25 20:34:15,257 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 55 treesize of output 61 [2021-11-25 20:34:15,265 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:34:15,280 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:34:15,281 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 40 treesize of output 46 [2021-11-25 20:34:15,285 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:34:15,288 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 21 [2021-11-25 20:34:15,292 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:34:15,295 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2021-11-25 20:34:15,890 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 2 not checked. [2021-11-25 20:34:15,890 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [995827675] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 20:34:15,890 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1487805985] [2021-11-25 20:34:15,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:34:15,890 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:34:15,890 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:34:15,891 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:34:15,892 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2021-11-25 20:34:16,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:34:16,034 INFO L263 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 45 conjunts are in the unsatisfiable core [2021-11-25 20:34:16,037 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:34:16,049 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 20:34:16,060 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 20:34:16,154 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-25 20:34:16,154 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 16 [2021-11-25 20:34:16,165 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2021-11-25 20:34:16,213 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:34:16,222 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:34:16,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:34:16,264 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:34:16,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:34:16,277 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:34:16,350 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-25 20:34:16,350 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 46 treesize of output 45 [2021-11-25 20:34:16,356 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 24 [2021-11-25 20:34:16,510 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2021-11-25 20:34:16,518 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 24 [2021-11-25 20:34:16,607 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-11-25 20:34:16,612 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2021-11-25 20:34:16,634 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 11 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-25 20:34:16,634 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 20:34:17,885 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_1402 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1403 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (bvadd |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| (_ bv4 32)))) (bvule (bvadd (_ bv4 32) (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_1402) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) .cse0)) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_1403) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) .cse0))))) (forall ((v_ArrVal_1402 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_1402) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) (bvadd |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| (_ bv4 32))))) (bvule .cse1 (bvadd (_ bv4 32) .cse1))))) is different from false [2021-11-25 20:34:17,974 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_1402 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1398 (_ BitVec 32))) (let ((.cse0 (select (select (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) (bvadd |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| (_ bv8 32)) v_ArrVal_1398)) |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_1402) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) (bvadd |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| (_ bv4 32))))) (bvule .cse0 (bvadd (_ bv4 32) .cse0)))) (forall ((v_ArrVal_1401 (_ BitVec 32)) (v_ArrVal_1402 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1398 (_ BitVec 32)) (v_ArrVal_1403 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (bvadd |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| (_ bv8 32))) (.cse2 (bvadd |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| (_ bv4 32)))) (bvule (bvadd (_ bv4 32) (select (select (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) .cse1 v_ArrVal_1398)) |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_1402) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) .cse2)) (select |c_#length| (select (select (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) .cse1 v_ArrVal_1401)) |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_1403) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) .cse2)))))) is different from false [2021-11-25 20:34:18,019 INFO L354 Elim1Store]: treesize reduction 27, result has 43.8 percent of original size [2021-11-25 20:34:18,020 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 53 treesize of output 44 [2021-11-25 20:34:18,023 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 32 [2021-11-25 20:34:18,032 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2021-11-25 20:34:18,090 INFO L354 Elim1Store]: treesize reduction 27, result has 43.8 percent of original size [2021-11-25 20:34:18,090 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 55 treesize of output 61 [2021-11-25 20:34:18,097 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:34:18,112 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:34:18,113 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 40 treesize of output 46 [2021-11-25 20:34:18,131 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:34:18,135 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 21 [2021-11-25 20:34:18,138 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:34:18,141 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2021-11-25 20:34:18,701 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 2 not checked. [2021-11-25 20:34:18,701 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1487805985] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 20:34:18,702 INFO L186 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2021-11-25 20:34:18,702 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 14, 13, 14, 13, 14] total 30 [2021-11-25 20:34:18,702 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792779250] [2021-11-25 20:34:18,702 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2021-11-25 20:34:18,702 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2021-11-25 20:34:18,702 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-25 20:34:18,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-11-25 20:34:18,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=541, Unknown=6, NotChecked=306, Total=930 [2021-11-25 20:34:18,704 INFO L87 Difference]: Start difference. First operand 108 states and 128 transitions. Second operand has 31 states, 30 states have (on average 2.2666666666666666) internal successors, (68), 31 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:34:25,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:34:25,483 INFO L93 Difference]: Finished difference Result 271 states and 324 transitions. [2021-11-25 20:34:25,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-25 20:34:25,485 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 30 states have (on average 2.2666666666666666) internal successors, (68), 31 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-11-25 20:34:25,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:34:25,487 INFO L225 Difference]: With dead ends: 271 [2021-11-25 20:34:25,487 INFO L226 Difference]: Without dead ends: 271 [2021-11-25 20:34:25,488 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 147 SyntacticMatches, 12 SemanticMatches, 44 ConstructedPredicates, 6 IntricatePredicates, 0 DeprecatedPredicates, 308 ImplicationChecksByTransitivity, 8.2s TimeCoverageRelationStatistics Valid=313, Invalid=1265, Unknown=6, NotChecked=486, Total=2070 [2021-11-25 20:34:25,488 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 1244 mSDsluCounter, 639 mSDsCounter, 0 mSdLazyCounter, 797 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1244 SdHoareTripleChecker+Valid, 694 SdHoareTripleChecker+Invalid, 1946 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 797 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1088 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2021-11-25 20:34:25,489 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1244 Valid, 694 Invalid, 1946 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 797 Invalid, 0 Unknown, 1088 Unchecked, 3.3s Time] [2021-11-25 20:34:25,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2021-11-25 20:34:25,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 117. [2021-11-25 20:34:25,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 102 states have (on average 1.3823529411764706) internal successors, (141), 116 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:34:25,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 141 transitions. [2021-11-25 20:34:25,494 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 141 transitions. Word has length 31 [2021-11-25 20:34:25,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:34:25,495 INFO L470 AbstractCegarLoop]: Abstraction has 117 states and 141 transitions. [2021-11-25 20:34:25,495 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 30 states have (on average 2.2666666666666666) internal successors, (68), 31 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:34:25,495 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 141 transitions. [2021-11-25 20:34:25,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-11-25 20:34:25,496 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:34:25,496 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:34:25,542 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Forceful destruction successful, exit code 0 [2021-11-25 20:34:25,713 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/cvc4 --incremental --print-success --lang smt (36)] Ended with exit code 0 [2021-11-25 20:34:25,919 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (35)] Ended with exit code 0 [2021-11-25 20:34:26,111 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/cvc4 --incremental --print-success --lang smt,35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 [2021-11-25 20:34:26,111 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr15REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 19 more)] === [2021-11-25 20:34:26,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:34:26,112 INFO L85 PathProgramCache]: Analyzing trace with hash -1492609130, now seen corresponding path program 1 times [2021-11-25 20:34:26,112 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-25 20:34:26,112 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1612687743] [2021-11-25 20:34:26,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:34:26,112 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-25 20:34:26,112 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/mathsat [2021-11-25 20:34:26,113 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-25 20:34:26,114 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (38)] Waiting until timeout for monitored process [2021-11-25 20:34:26,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:34:26,312 INFO L263 TraceCheckSpWp]: Trace formula consists of 222 conjuncts, 14 conjunts are in the unsatisfiable core [2021-11-25 20:34:26,313 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:34:26,331 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 20:34:26,575 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-25 20:34:26,575 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 20:34:26,575 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-25 20:34:26,575 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1612687743] [2021-11-25 20:34:26,575 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1612687743] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:34:26,575 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:34:26,575 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-25 20:34:26,576 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540868111] [2021-11-25 20:34:26,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:34:26,576 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-25 20:34:26,576 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-25 20:34:26,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-25 20:34:26,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-25 20:34:26,577 INFO L87 Difference]: Start difference. First operand 117 states and 141 transitions. Second operand has 7 states, 6 states have (on average 5.5) internal successors, (33), 7 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:34:27,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:34:27,019 INFO L93 Difference]: Finished difference Result 146 states and 168 transitions. [2021-11-25 20:34:27,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-25 20:34:27,020 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 5.5) internal successors, (33), 7 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 38 [2021-11-25 20:34:27,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:34:27,021 INFO L225 Difference]: With dead ends: 146 [2021-11-25 20:34:27,021 INFO L226 Difference]: Without dead ends: 146 [2021-11-25 20:34:27,022 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-11-25 20:34:27,022 INFO L933 BasicCegarLoop]: 38 mSDtfsCounter, 321 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 321 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-25 20:34:27,023 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [321 Valid, 75 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-25 20:34:27,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2021-11-25 20:34:27,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 117. [2021-11-25 20:34:27,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 102 states have (on average 1.3431372549019607) internal successors, (137), 116 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:34:27,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 137 transitions. [2021-11-25 20:34:27,026 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 137 transitions. Word has length 38 [2021-11-25 20:34:27,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:34:27,027 INFO L470 AbstractCegarLoop]: Abstraction has 117 states and 137 transitions. [2021-11-25 20:34:27,027 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 5.5) internal successors, (33), 7 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:34:27,027 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 137 transitions. [2021-11-25 20:34:27,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-25 20:34:27,028 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:34:27,028 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:34:27,039 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (38)] Ended with exit code 0 [2021-11-25 20:34:27,235 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 [2021-11-25 20:34:27,235 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr8REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 19 more)] === [2021-11-25 20:34:27,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:34:27,235 INFO L85 PathProgramCache]: Analyzing trace with hash 1013618178, now seen corresponding path program 2 times [2021-11-25 20:34:27,236 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-25 20:34:27,236 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [70898855] [2021-11-25 20:34:27,236 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-25 20:34:27,236 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-25 20:34:27,236 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/mathsat [2021-11-25 20:34:27,237 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-25 20:34:27,242 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (39)] Waiting until timeout for monitored process [2021-11-25 20:34:27,420 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-25 20:34:27,421 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-25 20:34:27,428 INFO L263 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-25 20:34:27,429 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:34:27,613 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 9 proven. 8 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-25 20:34:27,614 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 20:34:27,791 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 9 proven. 8 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-25 20:34:27,791 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-25 20:34:27,791 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [70898855] [2021-11-25 20:34:27,791 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [70898855] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 20:34:27,792 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1226978622] [2021-11-25 20:34:27,792 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-25 20:34:27,792 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-25 20:34:27,792 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/cvc4 [2021-11-25 20:34:27,792 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-25 20:34:27,793 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/cvc4 --incremental --print-success --lang smt (40)] Waiting until timeout for monitored process [2021-11-25 20:34:28,064 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-25 20:34:28,064 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-25 20:34:28,066 INFO L263 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-25 20:34:28,067 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:34:28,218 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 9 proven. 8 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-25 20:34:28,218 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 20:34:28,341 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 9 proven. 8 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-25 20:34:28,341 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1226978622] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 20:34:28,341 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2047773145] [2021-11-25 20:34:28,341 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-25 20:34:28,341 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:34:28,341 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:34:28,342 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:34:28,343 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Waiting until timeout for monitored process [2021-11-25 20:34:28,512 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-25 20:34:28,513 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-25 20:34:28,518 INFO L263 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-25 20:34:28,519 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:34:28,764 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 9 proven. 9 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-25 20:34:28,765 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 20:34:29,397 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 14 proven. 5 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-25 20:34:29,397 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2047773145] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 20:34:29,398 INFO L186 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2021-11-25 20:34:29,398 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6, 6, 7, 9] total 17 [2021-11-25 20:34:29,398 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681792249] [2021-11-25 20:34:29,398 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2021-11-25 20:34:29,398 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-11-25 20:34:29,398 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-25 20:34:29,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-11-25 20:34:29,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=188, Unknown=0, NotChecked=0, Total=272 [2021-11-25 20:34:29,399 INFO L87 Difference]: Start difference. First operand 117 states and 137 transitions. Second operand has 17 states, 17 states have (on average 4.529411764705882) internal successors, (77), 17 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:34:29,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:34:29,613 INFO L93 Difference]: Finished difference Result 103 states and 109 transitions. [2021-11-25 20:34:29,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-25 20:34:29,614 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 4.529411764705882) internal successors, (77), 17 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2021-11-25 20:34:29,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:34:29,615 INFO L225 Difference]: With dead ends: 103 [2021-11-25 20:34:29,615 INFO L226 Difference]: Without dead ends: 103 [2021-11-25 20:34:29,615 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 231 GetRequests, 213 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=121, Invalid=259, Unknown=0, NotChecked=0, Total=380 [2021-11-25 20:34:29,616 INFO L933 BasicCegarLoop]: 63 mSDtfsCounter, 225 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 255 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-25 20:34:29,616 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [225 Valid, 255 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-25 20:34:29,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2021-11-25 20:34:29,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 97. [2021-11-25 20:34:29,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 86 states have (on average 1.255813953488372) internal successors, (108), 96 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:34:29,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 108 transitions. [2021-11-25 20:34:29,619 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 108 transitions. Word has length 39 [2021-11-25 20:34:29,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:34:29,619 INFO L470 AbstractCegarLoop]: Abstraction has 97 states and 108 transitions. [2021-11-25 20:34:29,620 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 4.529411764705882) internal successors, (77), 17 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:34:29,620 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 108 transitions. [2021-11-25 20:34:29,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-11-25 20:34:29,620 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:34:29,620 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:34:29,649 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Forceful destruction successful, exit code 0 [2021-11-25 20:34:29,829 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (39)] Forceful destruction successful, exit code 0 [2021-11-25 20:34:30,024 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/cvc4 --incremental --print-success --lang smt (40)] Forceful destruction successful, exit code 0 [2021-11-25 20:34:30,221 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3,40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/cvc4 --incremental --print-success --lang smt [2021-11-25 20:34:30,221 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 19 more)] === [2021-11-25 20:34:30,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:34:30,222 INFO L85 PathProgramCache]: Analyzing trace with hash -520494328, now seen corresponding path program 1 times [2021-11-25 20:34:30,222 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-25 20:34:30,222 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [391201831] [2021-11-25 20:34:30,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:34:30,222 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-25 20:34:30,222 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/mathsat [2021-11-25 20:34:30,223 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-25 20:34:30,225 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (42)] Waiting until timeout for monitored process [2021-11-25 20:34:30,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:34:30,411 INFO L263 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-25 20:34:30,411 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:34:30,472 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-11-25 20:34:30,472 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 20:34:30,473 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-25 20:34:30,473 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [391201831] [2021-11-25 20:34:30,473 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [391201831] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:34:30,473 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:34:30,473 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 20:34:30,473 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899139742] [2021-11-25 20:34:30,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:34:30,474 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 20:34:30,474 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-25 20:34:30,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 20:34:30,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 20:34:30,475 INFO L87 Difference]: Start difference. First operand 97 states and 108 transitions. Second operand has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:34:30,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:34:30,522 INFO L93 Difference]: Finished difference Result 94 states and 98 transitions. [2021-11-25 20:34:30,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 20:34:30,522 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2021-11-25 20:34:30,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:34:30,523 INFO L225 Difference]: With dead ends: 94 [2021-11-25 20:34:30,523 INFO L226 Difference]: Without dead ends: 94 [2021-11-25 20:34:30,523 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:34:30,524 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 19 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 149 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-25 20:34:30,524 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 149 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-25 20:34:30,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2021-11-25 20:34:30,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 92. [2021-11-25 20:34:30,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 81 states have (on average 1.1975308641975309) internal successors, (97), 91 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:34:30,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 97 transitions. [2021-11-25 20:34:30,527 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 97 transitions. Word has length 41 [2021-11-25 20:34:30,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:34:30,527 INFO L470 AbstractCegarLoop]: Abstraction has 92 states and 97 transitions. [2021-11-25 20:34:30,528 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:34:30,528 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 97 transitions. [2021-11-25 20:34:30,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-11-25 20:34:30,528 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:34:30,528 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:34:30,537 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (42)] Forceful destruction successful, exit code 0 [2021-11-25 20:34:30,729 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 [2021-11-25 20:34:30,729 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 19 more)] === [2021-11-25 20:34:30,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:34:30,729 INFO L85 PathProgramCache]: Analyzing trace with hash 993974679, now seen corresponding path program 1 times [2021-11-25 20:34:30,730 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-25 20:34:30,730 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1957758435] [2021-11-25 20:34:30,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:34:30,730 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-25 20:34:30,730 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/mathsat [2021-11-25 20:34:30,731 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-25 20:34:30,737 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (43)] Waiting until timeout for monitored process [2021-11-25 20:34:31,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:34:31,021 INFO L263 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 49 conjunts are in the unsatisfiable core [2021-11-25 20:34:31,023 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:34:31,031 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 20:34:31,088 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-25 20:34:31,088 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 19 [2021-11-25 20:34:31,132 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:34:31,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:34:31,175 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:34:31,220 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-25 20:34:31,220 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 26 [2021-11-25 20:34:31,485 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 19 [2021-11-25 20:34:31,492 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:34:31,667 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:34:31,667 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 8 [2021-11-25 20:34:31,793 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2021-11-25 20:34:31,987 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2021-11-25 20:34:32,131 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:34:32,132 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 20:34:32,350 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1768 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_ULTIMATE.start_main_~len~0#1| (select (select (store |c_#memory_int| |c_ULTIMATE.start_dll_update_at_~head#1.base| v_ArrVal_1768) |c_ULTIMATE.start_main_~s~0#1.base|) |c_ULTIMATE.start_main_~s~0#1.offset|))) is different from false [2021-11-25 20:34:32,363 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1768 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_ULTIMATE.start_main_~len~0#1| (select (select (store |c_#memory_int| |c_ULTIMATE.start_dll_update_at_#t~mem10#1.base| v_ArrVal_1768) |c_ULTIMATE.start_main_~s~0#1.base|) |c_ULTIMATE.start_main_~s~0#1.offset|))) is different from false [2021-11-25 20:34:32,374 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1768 (Array (_ BitVec 32) (_ BitVec 32)))) (= (select (select (store |c_#memory_int| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_update_at_~head#1.base|) (bvadd (_ bv4 32) |c_ULTIMATE.start_dll_update_at_~head#1.offset|)) v_ArrVal_1768) |c_ULTIMATE.start_main_~s~0#1.base|) |c_ULTIMATE.start_main_~s~0#1.offset|) |c_ULTIMATE.start_main_~len~0#1|)) is different from false [2021-11-25 20:34:32,390 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1768 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_ULTIMATE.start_main_~len~0#1| (select (select (store |c_#memory_int| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~s~0#1.base|) (bvadd |c_ULTIMATE.start_main_~s~0#1.offset| (_ bv4 32))) v_ArrVal_1768) |c_ULTIMATE.start_main_~s~0#1.base|) |c_ULTIMATE.start_main_~s~0#1.offset|))) is different from false [2021-11-25 20:34:32,416 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:34:32,416 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 33 [2021-11-25 20:34:32,437 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:34:32,437 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 58 treesize of output 61 [2021-11-25 20:34:32,445 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 21 [2021-11-25 20:34:33,112 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1765 (_ BitVec 32)) (v_ArrVal_1763 (Array (_ BitVec 32) (_ BitVec 32)))) (not (= |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (select (store (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_1763) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| v_ArrVal_1765) (bvadd |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| (_ bv4 32)))))) is different from false [2021-11-25 20:34:33,136 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1765 (_ BitVec 32)) (v_ArrVal_1763 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1760 (_ BitVec 32))) (not (= (select (store (select (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) (bvadd |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| (_ bv8 32)) v_ArrVal_1760)) |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_1763) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| v_ArrVal_1765) (bvadd |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| (_ bv4 32))) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|))) is different from false [2021-11-25 20:34:33,182 INFO L354 Elim1Store]: treesize reduction 27, result has 43.8 percent of original size [2021-11-25 20:34:33,182 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 31 treesize of output 37 [2021-11-25 20:34:33,186 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 41 [2021-11-25 20:34:33,189 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:34:33,191 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 25 [2021-11-25 20:34:33,200 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 41 [2021-11-25 20:34:33,328 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 10 not checked. [2021-11-25 20:34:33,328 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-25 20:34:33,328 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1957758435] [2021-11-25 20:34:33,328 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1957758435] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 20:34:33,328 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1734153738] [2021-11-25 20:34:33,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:34:33,328 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-25 20:34:33,329 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/cvc4 [2021-11-25 20:34:33,329 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-25 20:34:33,335 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/cvc4 --incremental --print-success --lang smt (44)] Waiting until timeout for monitored process [2021-11-25 20:34:33,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:34:33,775 INFO L263 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 50 conjunts are in the unsatisfiable core [2021-11-25 20:34:33,777 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:34:33,847 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 20:34:34,053 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-25 20:34:34,054 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 16 [2021-11-25 20:34:34,189 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:34:34,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:34:34,324 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:34:34,371 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-25 20:34:34,372 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 26 [2021-11-25 20:34:34,991 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 19 [2021-11-25 20:34:35,003 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:34:35,322 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:34:35,322 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 8 [2021-11-25 20:34:35,566 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2021-11-25 20:34:35,917 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2021-11-25 20:34:36,208 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:34:36,208 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 20:34:36,254 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1838 (Array (_ BitVec 32) (_ BitVec 32)))) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_dll_update_at_~head#1.base| v_ArrVal_1838) |c_ULTIMATE.start_main_~s~0#1.base|) |c_ULTIMATE.start_main_~s~0#1.offset|) |c_ULTIMATE.start_main_~len~0#1|)) is different from false [2021-11-25 20:34:36,267 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1838 (Array (_ BitVec 32) (_ BitVec 32)))) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_dll_update_at_#t~mem10#1.base| v_ArrVal_1838) |c_ULTIMATE.start_main_~s~0#1.base|) |c_ULTIMATE.start_main_~s~0#1.offset|) |c_ULTIMATE.start_main_~len~0#1|)) is different from false [2021-11-25 20:34:36,277 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1838 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_ULTIMATE.start_main_~len~0#1| (select (select (store |c_#memory_int| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_update_at_~head#1.base|) (bvadd (_ bv4 32) |c_ULTIMATE.start_dll_update_at_~head#1.offset|)) v_ArrVal_1838) |c_ULTIMATE.start_main_~s~0#1.base|) |c_ULTIMATE.start_main_~s~0#1.offset|))) is different from false [2021-11-25 20:34:36,293 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1838 (Array (_ BitVec 32) (_ BitVec 32)))) (= (select (select (store |c_#memory_int| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~s~0#1.base|) (bvadd |c_ULTIMATE.start_main_~s~0#1.offset| (_ bv4 32))) v_ArrVal_1838) |c_ULTIMATE.start_main_~s~0#1.base|) |c_ULTIMATE.start_main_~s~0#1.offset|) |c_ULTIMATE.start_main_~len~0#1|)) is different from false [2021-11-25 20:34:36,322 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:34:36,322 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 33 [2021-11-25 20:34:36,342 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:34:36,342 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 58 treesize of output 61 [2021-11-25 20:34:36,349 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 21 [2021-11-25 20:34:36,596 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1765 (_ BitVec 32)) (v_ArrVal_1832 (Array (_ BitVec 32) (_ BitVec 32)))) (not (= |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (select (store (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_1832) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| v_ArrVal_1765) (bvadd |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| (_ bv4 32)))))) is different from false [2021-11-25 20:34:36,613 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1831 (_ BitVec 32)) (v_ArrVal_1765 (_ BitVec 32)) (v_ArrVal_1832 (Array (_ BitVec 32) (_ BitVec 32)))) (not (= (select (store (select (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) (bvadd |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| (_ bv8 32)) v_ArrVal_1831)) |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_1832) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| v_ArrVal_1765) (bvadd |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| (_ bv4 32))) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|))) is different from false [2021-11-25 20:34:36,652 INFO L354 Elim1Store]: treesize reduction 27, result has 43.8 percent of original size [2021-11-25 20:34:36,652 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 31 treesize of output 37 [2021-11-25 20:34:36,668 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 41 [2021-11-25 20:34:36,673 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 48 [2021-11-25 20:34:36,692 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 22 [2021-11-25 20:34:36,759 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 10 not checked. [2021-11-25 20:34:36,760 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1734153738] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 20:34:36,760 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [694076645] [2021-11-25 20:34:36,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:34:36,760 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:34:36,760 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:34:36,767 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:34:36,782 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Waiting until timeout for monitored process [2021-11-25 20:34:36,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:34:36,975 INFO L263 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 52 conjunts are in the unsatisfiable core [2021-11-25 20:34:36,993 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:34:37,134 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 20:34:37,212 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-25 20:34:37,212 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 16 [2021-11-25 20:34:37,264 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:34:37,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:34:37,295 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:34:37,358 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-25 20:34:37,359 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 26 [2021-11-25 20:34:37,513 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 19 [2021-11-25 20:34:37,529 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:34:37,624 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:34:37,624 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 8 [2021-11-25 20:34:37,674 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2021-11-25 20:34:37,761 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2021-11-25 20:34:37,781 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:34:37,781 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 20:34:37,826 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1907 (Array (_ BitVec 32) (_ BitVec 32)))) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_dll_update_at_~head#1.base| v_ArrVal_1907) |c_ULTIMATE.start_main_~s~0#1.base|) |c_ULTIMATE.start_main_~s~0#1.offset|) |c_ULTIMATE.start_main_~len~0#1|)) is different from false [2021-11-25 20:34:37,840 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1907 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_ULTIMATE.start_main_~len~0#1| (select (select (store |c_#memory_int| |c_ULTIMATE.start_dll_update_at_#t~mem10#1.base| v_ArrVal_1907) |c_ULTIMATE.start_main_~s~0#1.base|) |c_ULTIMATE.start_main_~s~0#1.offset|))) is different from false [2021-11-25 20:34:37,851 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1907 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_ULTIMATE.start_main_~len~0#1| (select (select (store |c_#memory_int| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_update_at_~head#1.base|) (bvadd (_ bv4 32) |c_ULTIMATE.start_dll_update_at_~head#1.offset|)) v_ArrVal_1907) |c_ULTIMATE.start_main_~s~0#1.base|) |c_ULTIMATE.start_main_~s~0#1.offset|))) is different from false [2021-11-25 20:34:37,867 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1907 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_ULTIMATE.start_main_~len~0#1| (select (select (store |c_#memory_int| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~s~0#1.base|) (bvadd |c_ULTIMATE.start_main_~s~0#1.offset| (_ bv4 32))) v_ArrVal_1907) |c_ULTIMATE.start_main_~s~0#1.base|) |c_ULTIMATE.start_main_~s~0#1.offset|))) is different from false [2021-11-25 20:34:37,897 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:34:37,897 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 33 [2021-11-25 20:34:37,917 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:34:37,918 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 58 treesize of output 61 [2021-11-25 20:34:37,926 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 21 [2021-11-25 20:34:38,144 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1902 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1765 (_ BitVec 32))) (not (= |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (select (store (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_1902) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| v_ArrVal_1765) (bvadd |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| (_ bv4 32)))))) is different from false [2021-11-25 20:34:38,166 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1902 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1765 (_ BitVec 32)) (v_ArrVal_1900 (_ BitVec 32))) (not (= |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (select (store (select (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) (bvadd |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| (_ bv8 32)) v_ArrVal_1900)) |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_1902) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| v_ArrVal_1765) (bvadd |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| (_ bv4 32)))))) is different from false [2021-11-25 20:34:38,216 INFO L354 Elim1Store]: treesize reduction 27, result has 43.8 percent of original size [2021-11-25 20:34:38,216 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 31 treesize of output 37 [2021-11-25 20:34:38,220 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 41 [2021-11-25 20:34:38,224 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 48 [2021-11-25 20:34:38,238 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 22 [2021-11-25 20:34:38,308 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 10 not checked. [2021-11-25 20:34:38,308 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [694076645] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 20:34:38,308 INFO L186 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2021-11-25 20:34:38,308 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 22, 22, 22, 22, 22] total 69 [2021-11-25 20:34:38,309 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245612937] [2021-11-25 20:34:38,309 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2021-11-25 20:34:38,309 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 69 states [2021-11-25 20:34:38,309 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-25 20:34:38,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 69 interpolants. [2021-11-25 20:34:38,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=226, Invalid=2378, Unknown=18, NotChecked=2070, Total=4692 [2021-11-25 20:34:38,312 INFO L87 Difference]: Start difference. First operand 92 states and 97 transitions. Second operand has 69 states, 69 states have (on average 2.0144927536231885) internal successors, (139), 69 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:34:43,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:34:43,420 INFO L93 Difference]: Finished difference Result 92 states and 96 transitions. [2021-11-25 20:34:43,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-25 20:34:43,421 INFO L78 Accepts]: Start accepts. Automaton has has 69 states, 69 states have (on average 2.0144927536231885) internal successors, (139), 69 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42 [2021-11-25 20:34:43,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:34:43,422 INFO L225 Difference]: With dead ends: 92 [2021-11-25 20:34:43,422 INFO L226 Difference]: Without dead ends: 92 [2021-11-25 20:34:43,424 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 276 GetRequests, 177 SyntacticMatches, 14 SemanticMatches, 85 ConstructedPredicates, 18 IntricatePredicates, 0 DeprecatedPredicates, 1353 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=532, Invalid=4214, Unknown=18, NotChecked=2718, Total=7482 [2021-11-25 20:34:43,425 INFO L933 BasicCegarLoop]: 35 mSDtfsCounter, 173 mSDsluCounter, 919 mSDsCounter, 0 mSdLazyCounter, 951 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 954 SdHoareTripleChecker+Invalid, 2517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 951 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1516 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2021-11-25 20:34:43,425 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [173 Valid, 954 Invalid, 2517 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 951 Invalid, 0 Unknown, 1516 Unchecked, 2.5s Time] [2021-11-25 20:34:43,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2021-11-25 20:34:43,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2021-11-25 20:34:43,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 81 states have (on average 1.1851851851851851) internal successors, (96), 91 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:34:43,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 96 transitions. [2021-11-25 20:34:43,429 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 96 transitions. Word has length 42 [2021-11-25 20:34:43,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:34:43,429 INFO L470 AbstractCegarLoop]: Abstraction has 92 states and 96 transitions. [2021-11-25 20:34:43,430 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 69 states, 69 states have (on average 2.0144927536231885) internal successors, (139), 69 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:34:43,430 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 96 transitions. [2021-11-25 20:34:43,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-11-25 20:34:43,430 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:34:43,431 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:34:43,441 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (43)] Forceful destruction successful, exit code 0 [2021-11-25 20:34:43,656 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Ended with exit code 0 [2021-11-25 20:34:43,838 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/cvc4 --incremental --print-success --lang smt (44)] Ended with exit code 0 [2021-11-25 20:34:44,035 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3,45 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/cvc4 --incremental --print-success --lang smt [2021-11-25 20:34:44,035 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 19 more)] === [2021-11-25 20:34:44,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:34:44,036 INFO L85 PathProgramCache]: Analyzing trace with hash 594303695, now seen corresponding path program 1 times [2021-11-25 20:34:44,036 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-25 20:34:44,036 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1903902720] [2021-11-25 20:34:44,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:34:44,036 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-25 20:34:44,036 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/mathsat [2021-11-25 20:34:44,037 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-25 20:34:44,044 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (46)] Waiting until timeout for monitored process [2021-11-25 20:34:44,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:34:44,554 INFO L263 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 70 conjunts are in the unsatisfiable core [2021-11-25 20:34:44,561 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:34:44,582 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 20:34:44,734 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-25 20:34:44,735 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 19 [2021-11-25 20:34:44,825 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:34:44,832 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:34:44,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:34:44,892 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:34:44,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:34:44,902 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:34:44,965 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-25 20:34:44,965 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 49 treesize of output 48 [2021-11-25 20:34:44,971 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 24 [2021-11-25 20:34:45,425 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 33 [2021-11-25 20:34:45,445 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:34:45,457 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2021-11-25 20:34:45,961 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:34:45,962 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2021-11-25 20:34:46,233 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 20:34:46,254 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-25 20:34:46,254 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 40 [2021-11-25 20:34:46,494 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 22 [2021-11-25 20:34:46,583 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 2 proven. 20 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-25 20:34:46,583 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 20:34:46,811 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1986 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_update_at_~head#1.base| v_ArrVal_1986) |c_ULTIMATE.start_main_~s~0#1.base|) (bvadd |c_ULTIMATE.start_main_~s~0#1.offset| (_ bv4 32))))))))))) (_ bv1 1)))) is different from false [2021-11-25 20:34:46,830 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1986 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_update_at_#t~mem10#1.base| v_ArrVal_1986) |c_ULTIMATE.start_main_~s~0#1.base|) (bvadd |c_ULTIMATE.start_main_~s~0#1.offset| (_ bv4 32))))))))))) (_ bv1 1)))) is different from false [2021-11-25 20:34:46,994 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1986 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (let ((.cse0 (bvadd |c_ULTIMATE.start_main_~s~0#1.offset| (_ bv4 32)))) (select (select (store |c_#memory_$Pointer$.base| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~s~0#1.base|) .cse0) v_ArrVal_1986) |c_ULTIMATE.start_main_~s~0#1.base|) .cse0))))))))))))))) is different from false [2021-11-25 20:34:47,185 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1986 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1980 (_ BitVec 32))) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (let ((.cse1 (bvadd |c_ULTIMATE.start_main_~s~0#1.offset| (_ bv4 32)))) (select (select (let ((.cse0 (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~s~0#1.base|) |c_ULTIMATE.start_main_~s~0#1.offset| v_ArrVal_1980))) (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~s~0#1.base| .cse0) (select .cse0 .cse1) v_ArrVal_1986)) |c_ULTIMATE.start_main_~s~0#1.base|) .cse1)))))))))))))) (_ bv1 1)))) is different from false [2021-11-25 20:34:47,205 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1986 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1980 (_ BitVec 32))) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (let ((.cse1 (bvadd (_ bv4 32) |c_ULTIMATE.start_dll_create_#res#1.offset|))) (select (select (let ((.cse0 (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_#res#1.base|) |c_ULTIMATE.start_dll_create_#res#1.offset| v_ArrVal_1980))) (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_#res#1.base| .cse0) (select .cse0 .cse1) v_ArrVal_1986)) |c_ULTIMATE.start_dll_create_#res#1.base|) .cse1)))))))))))))) (_ bv1 1)))) is different from false [2021-11-25 20:34:47,223 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1986 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1980 (_ BitVec 32))) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (let ((.cse1 (bvadd (_ bv4 32) |c_ULTIMATE.start_dll_create_~head~0#1.offset|))) (select (select (let ((.cse0 (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base|) |c_ULTIMATE.start_dll_create_~head~0#1.offset| v_ArrVal_1980))) (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base| .cse0) (select .cse0 .cse1) v_ArrVal_1986)) |c_ULTIMATE.start_dll_create_~head~0#1.base|) .cse1)))))))))))))))) (_ bv1 1)))) is different from false [2021-11-25 20:34:47,253 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1986 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1980 (_ BitVec 32))) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (let ((.cse1 (bvadd |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| (_ bv4 32)))) (select (select (let ((.cse0 (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| v_ArrVal_1980))) (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| .cse0) (select .cse0 .cse1) v_ArrVal_1986)) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) .cse1))))))))))))))))) (_ bv1 1)))) is different from false [2021-11-25 20:34:47,283 INFO L354 Elim1Store]: treesize reduction 5, result has 88.4 percent of original size [2021-11-25 20:34:47,283 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 66 [2021-11-25 20:34:47,298 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1977 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1986 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1980 (_ BitVec 32))) (= |c_ULTIMATE.start_dll_create_~head~0#1.base| (let ((.cse2 (bvadd |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| (_ bv4 32)))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_1977))) (let ((.cse1 (store (select .cse0 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| v_ArrVal_1980))) (store (store .cse0 |c_ULTIMATE.start_dll_create_~new_head~0#1.base| .cse1) (select .cse1 .cse2) v_ArrVal_1986))) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) .cse2)))) is different from false [2021-11-25 20:34:47,319 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1972 (_ BitVec 32)) (v_ArrVal_1977 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1986 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1980 (_ BitVec 32))) (= |c_ULTIMATE.start_dll_create_~head~0#1.base| (let ((.cse2 (bvadd |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| (_ bv4 32)))) (select (select (let ((.cse0 (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) (bvadd |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| (_ bv8 32)) v_ArrVal_1972)) |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_1977))) (let ((.cse1 (store (select .cse0 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| v_ArrVal_1980))) (store (store .cse0 |c_ULTIMATE.start_dll_create_~new_head~0#1.base| .cse1) (select .cse1 .cse2) v_ArrVal_1986))) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) .cse2)))) is different from false [2021-11-25 20:34:47,358 INFO L354 Elim1Store]: treesize reduction 27, result has 43.8 percent of original size [2021-11-25 20:34:47,358 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 83 treesize of output 59 [2021-11-25 20:34:47,368 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 100 [2021-11-25 20:34:47,371 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:34:47,374 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 24 [2021-11-25 20:34:47,378 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:34:47,380 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 30 [2021-11-25 20:34:47,385 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:34:47,606 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 12 not checked. [2021-11-25 20:34:47,606 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-25 20:34:47,606 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1903902720] [2021-11-25 20:34:47,606 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1903902720] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 20:34:47,606 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1378159109] [2021-11-25 20:34:47,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:34:47,607 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-25 20:34:47,607 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/cvc4 [2021-11-25 20:34:47,614 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-25 20:34:47,615 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea9e1f80-c3b5-479e-8760-821f027f8733/bin/utaipan-eEHZpOm5b7/cvc4 --incremental --print-success --lang smt (47)] Waiting until timeout for monitored process [2021-11-25 20:34:48,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:34:48,073 INFO L263 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 42 conjunts are in the unsatisfiable core [2021-11-25 20:34:48,076 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:34:48,149 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-11-25 20:34:48,150 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 19 [2021-11-25 20:34:48,360 INFO L354 Elim1Store]: treesize reduction 38, result has 39.7 percent of original size [2021-11-25 20:34:48,360 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 30 treesize of output 47 [2021-11-25 20:34:48,692 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:34:48,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:34:48,842 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:34:48,922 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-25 20:34:48,923 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 46 [2021-11-25 20:34:49,671 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 35 [2021-11-25 20:34:50,208 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-25 20:34:50,208 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 58 treesize of output 57 [2021-11-25 20:34:50,959 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 24 [2021-11-25 20:34:51,429 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 2 proven. 14 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-25 20:34:51,430 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 20:34:54,004 INFO L354 Elim1Store]: treesize reduction 27, result has 43.8 percent of original size [2021-11-25 20:34:54,004 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 158 treesize of output 118 [2021-11-25 20:34:54,013 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 278 treesize of output 268 [2021-11-25 20:34:54,020 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:34:54,026 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 152 treesize of output 136 [2021-11-25 20:34:54,032 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:34:54,037 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 154 treesize of output 134 [2021-11-25 20:34:54,047 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 150 treesize of output 142