./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 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_654ffbce-fddd-43d7-97a9-56350347d9c0/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_654ffbce-fddd-43d7-97a9-56350347d9c0/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_654ffbce-fddd-43d7-97a9-56350347d9c0/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_654ffbce-fddd-43d7-97a9-56350347d9c0/bin/utaipan-7li7fVZpFI/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-simple/dll2n_update_all.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_654ffbce-fddd-43d7-97a9-56350347d9c0/bin/utaipan-7li7fVZpFI/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_654ffbce-fddd-43d7-97a9-56350347d9c0/bin/utaipan-7li7fVZpFI --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 --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-03 02:33:39,237 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 02:33:39,240 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 02:33:39,289 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 02:33:39,290 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 02:33:39,294 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 02:33:39,296 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 02:33:39,301 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 02:33:39,303 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 02:33:39,312 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 02:33:39,313 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 02:33:39,314 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 02:33:39,315 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 02:33:39,317 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 02:33:39,319 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 02:33:39,321 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 02:33:39,323 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 02:33:39,324 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 02:33:39,325 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 02:33:39,333 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 02:33:39,335 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 02:33:39,336 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 02:33:39,340 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 02:33:39,341 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 02:33:39,349 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 02:33:39,349 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 02:33:39,350 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 02:33:39,352 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 02:33:39,352 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 02:33:39,353 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 02:33:39,354 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 02:33:39,356 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 02:33:39,358 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 02:33:39,359 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 02:33:39,360 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 02:33:39,361 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 02:33:39,362 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 02:33:39,362 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 02:33:39,362 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 02:33:39,363 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 02:33:39,364 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 02:33:39,365 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_654ffbce-fddd-43d7-97a9-56350347d9c0/bin/utaipan-7li7fVZpFI/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2022-11-03 02:33:39,404 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 02:33:39,405 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 02:33:39,406 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 02:33:39,406 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 02:33:39,407 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 02:33:39,407 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 02:33:39,407 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 02:33:39,408 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 02:33:39,408 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 02:33:39,408 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 02:33:39,409 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 02:33:39,410 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 02:33:39,410 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 02:33:39,410 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 02:33:39,411 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 02:33:39,411 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 02:33:39,411 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 02:33:39,411 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 02:33:39,412 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-03 02:33:39,412 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-03 02:33:39,413 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 02:33:39,413 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-03 02:33:39,413 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-03 02:33:39,414 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 02:33:39,414 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-03 02:33:39,414 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 02:33:39,414 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-03 02:33:39,415 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-03 02:33:39,415 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-03 02:33:39,415 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 02:33:39,416 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-03 02:33:39,416 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-03 02:33:39,416 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 02:33:39,417 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 02:33:39,417 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 02:33:39,417 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:33:39,418 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 02:33:39,418 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 02:33:39,418 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 02:33:39,418 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 02:33:39,419 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 02:33:39,419 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 02:33:39,419 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_654ffbce-fddd-43d7-97a9-56350347d9c0/bin/utaipan-7li7fVZpFI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_654ffbce-fddd-43d7-97a9-56350347d9c0/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c46cc56772f2c3f0b073640343b328fb3b128ed13803ffe5a04f6290fe624494 [2022-11-03 02:33:39,740 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 02:33:39,779 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 02:33:39,781 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 02:33:39,783 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 02:33:39,784 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 02:33:39,785 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_654ffbce-fddd-43d7-97a9-56350347d9c0/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/list-simple/dll2n_update_all.i [2022-11-03 02:33:39,866 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_654ffbce-fddd-43d7-97a9-56350347d9c0/bin/utaipan-7li7fVZpFI/data/0190f053a/8da41b4b83c24af0810ced4d239d0524/FLAG3cb25f354 [2022-11-03 02:33:40,505 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 02:33:40,506 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_654ffbce-fddd-43d7-97a9-56350347d9c0/sv-benchmarks/c/list-simple/dll2n_update_all.i [2022-11-03 02:33:40,517 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_654ffbce-fddd-43d7-97a9-56350347d9c0/bin/utaipan-7li7fVZpFI/data/0190f053a/8da41b4b83c24af0810ced4d239d0524/FLAG3cb25f354 [2022-11-03 02:33:40,771 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_654ffbce-fddd-43d7-97a9-56350347d9c0/bin/utaipan-7li7fVZpFI/data/0190f053a/8da41b4b83c24af0810ced4d239d0524 [2022-11-03 02:33:40,777 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 02:33:40,780 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 02:33:40,783 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 02:33:40,783 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 02:33:40,787 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 02:33:40,788 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:33:40" (1/1) ... [2022-11-03 02:33:40,790 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@90b5db8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:33:40, skipping insertion in model container [2022-11-03 02:33:40,790 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:33:40" (1/1) ... [2022-11-03 02:33:40,799 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 02:33:40,861 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 02:33:41,254 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_654ffbce-fddd-43d7-97a9-56350347d9c0/sv-benchmarks/c/list-simple/dll2n_update_all.i[24455,24468] [2022-11-03 02:33:41,257 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:33:41,265 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 02:33:41,306 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_654ffbce-fddd-43d7-97a9-56350347d9c0/sv-benchmarks/c/list-simple/dll2n_update_all.i[24455,24468] [2022-11-03 02:33:41,307 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:33:41,332 INFO L208 MainTranslator]: Completed translation [2022-11-03 02:33:41,332 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:33:41 WrapperNode [2022-11-03 02:33:41,332 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 02:33:41,333 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 02:33:41,334 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 02:33:41,334 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 02:33:41,342 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:33:41" (1/1) ... [2022-11-03 02:33:41,356 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:33:41" (1/1) ... [2022-11-03 02:33:41,380 INFO L138 Inliner]: procedures = 126, calls = 27, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 114 [2022-11-03 02:33:41,380 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 02:33:41,381 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 02:33:41,381 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 02:33:41,381 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 02:33:41,391 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:33:41" (1/1) ... [2022-11-03 02:33:41,391 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:33:41" (1/1) ... [2022-11-03 02:33:41,395 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:33:41" (1/1) ... [2022-11-03 02:33:41,395 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:33:41" (1/1) ... [2022-11-03 02:33:41,404 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:33:41" (1/1) ... [2022-11-03 02:33:41,409 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:33:41" (1/1) ... [2022-11-03 02:33:41,411 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:33:41" (1/1) ... [2022-11-03 02:33:41,413 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:33:41" (1/1) ... [2022-11-03 02:33:41,416 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 02:33:41,417 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 02:33:41,417 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 02:33:41,417 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 02:33:41,418 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:33:41" (1/1) ... [2022-11-03 02:33:41,426 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:33:41,439 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_654ffbce-fddd-43d7-97a9-56350347d9c0/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:33:41,452 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_654ffbce-fddd-43d7-97a9-56350347d9c0/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 02:33:41,482 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_654ffbce-fddd-43d7-97a9-56350347d9c0/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 02:33:41,519 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2022-11-03 02:33:41,519 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2022-11-03 02:33:41,520 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-03 02:33:41,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-03 02:33:41,520 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-03 02:33:41,520 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 02:33:41,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-03 02:33:41,521 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-03 02:33:41,521 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 02:33:41,521 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 02:33:41,521 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 02:33:41,521 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 02:33:41,655 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 02:33:41,663 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 02:33:41,705 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2022-11-03 02:33:41,958 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 02:33:42,015 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 02:33:42,015 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-11-03 02:33:42,018 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:33:42 BoogieIcfgContainer [2022-11-03 02:33:42,018 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 02:33:42,021 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 02:33:42,021 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 02:33:42,034 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 02:33:42,035 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 02:33:40" (1/3) ... [2022-11-03 02:33:42,035 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22e2ee13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:33:42, skipping insertion in model container [2022-11-03 02:33:42,036 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:33:41" (2/3) ... [2022-11-03 02:33:42,036 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22e2ee13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:33:42, skipping insertion in model container [2022-11-03 02:33:42,036 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:33:42" (3/3) ... [2022-11-03 02:33:42,037 INFO L112 eAbstractionObserver]: Analyzing ICFG dll2n_update_all.i [2022-11-03 02:33:42,059 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 02:33:42,059 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 23 error locations. [2022-11-03 02:33:42,122 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 02:33:42,128 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2c8ebfca, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 02:33:42,129 INFO L358 AbstractCegarLoop]: Starting to check reachability of 23 error locations. [2022-11-03 02:33:42,134 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) [2022-11-03 02:33:42,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-03 02:33:42,142 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:33:42,143 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-03 02:33:42,143 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 20 more)] === [2022-11-03 02:33:42,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:33:42,150 INFO L85 PathProgramCache]: Analyzing trace with hash 5795537, now seen corresponding path program 1 times [2022-11-03 02:33:42,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:33:42,161 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1582758938] [2022-11-03 02:33:42,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:33:42,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:33:42,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:33:42,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:33:42,471 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:33:42,472 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1582758938] [2022-11-03 02:33:42,472 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1582758938] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:33:42,473 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:33:42,473 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 02:33:42,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026341138] [2022-11-03 02:33:42,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:33:42,481 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:33:42,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:33:42,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:33:42,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:33:42,527 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) [2022-11-03 02:33:42,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:33:42,721 INFO L93 Difference]: Finished difference Result 82 states and 94 transitions. [2022-11-03 02:33:42,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:33:42,724 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 [2022-11-03 02:33:42,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:33:42,731 INFO L225 Difference]: With dead ends: 82 [2022-11-03 02:33:42,732 INFO L226 Difference]: Without dead ends: 77 [2022-11-03 02:33:42,733 INFO L412 NwaCegarLoop]: 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 [2022-11-03 02:33:42,737 INFO L413 NwaCegarLoop]: 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 [2022-11-03 02:33:42,738 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 65 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 02:33:42,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2022-11-03 02:33:42,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 45. [2022-11-03 02:33:42,769 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) [2022-11-03 02:33:42,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 51 transitions. [2022-11-03 02:33:42,772 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 51 transitions. Word has length 4 [2022-11-03 02:33:42,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:33:42,772 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 51 transitions. [2022-11-03 02:33:42,772 INFO L496 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) [2022-11-03 02:33:42,773 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 51 transitions. [2022-11-03 02:33:42,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-03 02:33:42,773 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:33:42,773 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-03 02:33:42,774 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 02:33:42,774 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 20 more)] === [2022-11-03 02:33:42,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:33:42,775 INFO L85 PathProgramCache]: Analyzing trace with hash 5795538, now seen corresponding path program 1 times [2022-11-03 02:33:42,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:33:42,776 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301497463] [2022-11-03 02:33:42,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:33:42,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:33:42,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:33:42,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:33:42,877 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:33:42,877 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [301497463] [2022-11-03 02:33:42,877 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [301497463] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:33:42,877 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:33:42,878 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 02:33:42,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851028910] [2022-11-03 02:33:42,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:33:42,879 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:33:42,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:33:42,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:33:42,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:33:42,881 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) [2022-11-03 02:33:42,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:33:42,966 INFO L93 Difference]: Finished difference Result 74 states and 85 transitions. [2022-11-03 02:33:42,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:33:42,966 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 [2022-11-03 02:33:42,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:33:42,968 INFO L225 Difference]: With dead ends: 74 [2022-11-03 02:33:42,968 INFO L226 Difference]: Without dead ends: 74 [2022-11-03 02:33:42,968 INFO L412 NwaCegarLoop]: 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 [2022-11-03 02:33:42,969 INFO L413 NwaCegarLoop]: 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 [2022-11-03 02:33:42,970 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 66 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:33:42,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2022-11-03 02:33:42,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 42. [2022-11-03 02:33:42,975 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) [2022-11-03 02:33:42,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 48 transitions. [2022-11-03 02:33:42,976 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 48 transitions. Word has length 4 [2022-11-03 02:33:42,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:33:42,977 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 48 transitions. [2022-11-03 02:33:42,977 INFO L496 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) [2022-11-03 02:33:42,977 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 48 transitions. [2022-11-03 02:33:42,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-03 02:33:42,978 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:33:42,978 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-03 02:33:42,978 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 02:33:42,978 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 20 more)] === [2022-11-03 02:33:42,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:33:42,979 INFO L85 PathProgramCache]: Analyzing trace with hash 184343024, now seen corresponding path program 1 times [2022-11-03 02:33:42,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:33:42,980 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979822455] [2022-11-03 02:33:42,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:33:42,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:33:42,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:33:43,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:33:43,042 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:33:43,042 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1979822455] [2022-11-03 02:33:43,043 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1979822455] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:33:43,043 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:33:43,043 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 02:33:43,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689975696] [2022-11-03 02:33:43,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:33:43,044 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:33:43,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:33:43,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:33:43,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:33:43,045 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) [2022-11-03 02:33:43,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:33:43,090 INFO L93 Difference]: Finished difference Result 52 states and 59 transitions. [2022-11-03 02:33:43,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:33:43,092 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 [2022-11-03 02:33:43,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:33:43,093 INFO L225 Difference]: With dead ends: 52 [2022-11-03 02:33:43,093 INFO L226 Difference]: Without dead ends: 52 [2022-11-03 02:33:43,093 INFO L412 NwaCegarLoop]: 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 [2022-11-03 02:33:43,094 INFO L413 NwaCegarLoop]: 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 [2022-11-03 02:33:43,095 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 66 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 02:33:43,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2022-11-03 02:33:43,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 43. [2022-11-03 02:33:43,099 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) [2022-11-03 02:33:43,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 49 transitions. [2022-11-03 02:33:43,099 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 49 transitions. Word has length 5 [2022-11-03 02:33:43,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:33:43,100 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 49 transitions. [2022-11-03 02:33:43,100 INFO L496 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) [2022-11-03 02:33:43,100 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 49 transitions. [2022-11-03 02:33:43,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-03 02:33:43,100 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:33:43,100 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:33:43,101 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-03 02:33:43,101 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 20 more)] === [2022-11-03 02:33:43,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:33:43,102 INFO L85 PathProgramCache]: Analyzing trace with hash 770785749, now seen corresponding path program 1 times [2022-11-03 02:33:43,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:33:43,102 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1282697285] [2022-11-03 02:33:43,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:33:43,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:33:43,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:33:43,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:33:43,170 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:33:43,171 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1282697285] [2022-11-03 02:33:43,171 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1282697285] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:33:43,171 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:33:43,171 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 02:33:43,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638777809] [2022-11-03 02:33:43,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:33:43,172 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:33:43,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:33:43,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:33:43,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:33:43,173 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) [2022-11-03 02:33:43,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:33:43,212 INFO L93 Difference]: Finished difference Result 49 states and 55 transitions. [2022-11-03 02:33:43,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:33:43,212 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 [2022-11-03 02:33:43,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:33:43,213 INFO L225 Difference]: With dead ends: 49 [2022-11-03 02:33:43,213 INFO L226 Difference]: Without dead ends: 49 [2022-11-03 02:33:43,213 INFO L412 NwaCegarLoop]: 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 [2022-11-03 02:33:43,214 INFO L413 NwaCegarLoop]: 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, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 02:33:43,215 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 61 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 02:33:43,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2022-11-03 02:33:43,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 48. [2022-11-03 02:33:43,219 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) [2022-11-03 02:33:43,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 54 transitions. [2022-11-03 02:33:43,220 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 54 transitions. Word has length 8 [2022-11-03 02:33:43,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:33:43,220 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 54 transitions. [2022-11-03 02:33:43,220 INFO L496 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) [2022-11-03 02:33:43,220 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 54 transitions. [2022-11-03 02:33:43,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-03 02:33:43,221 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:33:43,221 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:33:43,221 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-03 02:33:43,222 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 20 more)] === [2022-11-03 02:33:43,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:33:43,222 INFO L85 PathProgramCache]: Analyzing trace with hash 1983908387, now seen corresponding path program 1 times [2022-11-03 02:33:43,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:33:43,223 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823227264] [2022-11-03 02:33:43,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:33:43,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:33:43,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:33:43,397 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:33:43,397 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:33:43,397 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823227264] [2022-11-03 02:33:43,398 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1823227264] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:33:43,398 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1418504811] [2022-11-03 02:33:43,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:33:43,398 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:33:43,399 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_654ffbce-fddd-43d7-97a9-56350347d9c0/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:33:43,402 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_654ffbce-fddd-43d7-97a9-56350347d9c0/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:33:43,426 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_654ffbce-fddd-43d7-97a9-56350347d9c0/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-03 02:33:43,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:33:43,503 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-03 02:33:43,508 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:33:43,596 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:33:43,596 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:33:43,670 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:33:43,671 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1418504811] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:33:43,671 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [368987237] [2022-11-03 02:33:43,696 INFO L159 IcfgInterpreter]: Started Sifa with 12 locations of interest [2022-11-03 02:33:43,696 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 02:33:43,703 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 02:33:43,710 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 02:33:43,716 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 02:33:43,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:33:43,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:33:43,846 INFO L390 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 [2022-11-03 02:33:43,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:33:43,923 INFO L390 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 [2022-11-03 02:33:43,945 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:33:43,968 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:33:44,004 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:33:44,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:33:44,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:33:44,029 INFO L390 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 [2022-11-03 02:33:44,047 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:33:44,090 INFO L390 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 [2022-11-03 02:33:44,112 INFO L390 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 [2022-11-03 02:33:44,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:33:44,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:33:44,136 INFO L390 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 [2022-11-03 02:33:44,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:33:44,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:33:44,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:33:44,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:33:44,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:33:44,233 INFO L390 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 [2022-11-03 02:33:44,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:33:44,299 INFO L390 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 [2022-11-03 02:33:44,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:33:44,318 INFO L390 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 [2022-11-03 02:33:44,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:33:44,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:33:44,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:33:44,356 INFO L390 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 [2022-11-03 02:33:44,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:33:44,407 INFO L390 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 [2022-11-03 02:33:44,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:33:44,424 INFO L390 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 [2022-11-03 02:33:44,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:33:44,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:33:44,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:33:44,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:33:44,448 INFO L390 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 [2022-11-03 02:33:44,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:33:44,566 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:33:44,568 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:33:44,597 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-11-03 02:33:44,597 INFO L390 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 [2022-11-03 02:33:44,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:33:44,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:33:44,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:33:44,642 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:33:44,643 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:33:44,652 INFO L356 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2022-11-03 02:33:44,653 INFO L390 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 [2022-11-03 02:33:44,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:33:44,674 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:33:44,675 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:33:44,697 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-11-03 02:33:44,698 INFO L390 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 [2022-11-03 02:33:44,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:33:44,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:33:44,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:33:44,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:33:44,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:33:44,837 INFO L390 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 [2022-11-03 02:33:44,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:33:44,900 INFO L390 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 [2022-11-03 02:33:44,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:33:44,916 INFO L390 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 [2022-11-03 02:33:44,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:33:44,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:33:44,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:33:44,940 INFO L390 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 [2022-11-03 02:33:44,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:33:44,981 INFO L390 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 [2022-11-03 02:33:45,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:33:45,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:33:45,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:33:45,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:33:45,006 INFO L390 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 [2022-11-03 02:33:45,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:33:45,029 INFO L390 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 [2022-11-03 02:33:45,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:33:45,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:33:45,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:33:45,127 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:33:45,128 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:33:45,136 INFO L356 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2022-11-03 02:33:45,137 INFO L390 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 [2022-11-03 02:33:45,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:33:45,157 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:33:45,158 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:33:45,184 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-11-03 02:33:45,185 INFO L390 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 [2022-11-03 02:33:45,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:33:45,210 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:33:45,211 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:33:45,233 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-11-03 02:33:45,234 INFO L390 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 [2022-11-03 02:33:45,582 INFO L356 Elim1Store]: treesize reduction 54, result has 27.0 percent of original size [2022-11-03 02:33:45,583 INFO L390 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 [2022-11-03 02:33:45,947 INFO L356 Elim1Store]: treesize reduction 68, result has 21.8 percent of original size [2022-11-03 02:33:45,948 INFO L390 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 332 treesize of output 323 [2022-11-03 02:33:46,011 INFO L356 Elim1Store]: treesize reduction 64, result has 19.0 percent of original size [2022-11-03 02:33:46,012 INFO L390 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 328 treesize of output 325 [2022-11-03 02:33:46,075 INFO L356 Elim1Store]: treesize reduction 68, result has 21.8 percent of original size [2022-11-03 02:33:46,076 INFO L390 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 332 treesize of output 323 [2022-11-03 02:33:46,154 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 02:33:49,278 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [368987237] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:33:49,279 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-03 02:33:49,279 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [3, 3, 3] total 10 [2022-11-03 02:33:49,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228874071] [2022-11-03 02:33:49,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:33:49,280 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-03 02:33:49,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:33:49,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-03 02:33:49,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-11-03 02:33:49,282 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) [2022-11-03 02:33:50,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:33:50,202 INFO L93 Difference]: Finished difference Result 59 states and 66 transitions. [2022-11-03 02:33:50,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-03 02:33:50,206 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 [2022-11-03 02:33:50,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:33:50,207 INFO L225 Difference]: With dead ends: 59 [2022-11-03 02:33:50,207 INFO L226 Difference]: Without dead ends: 59 [2022-11-03 02:33:50,208 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 26 SyntacticMatches, 2 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2022-11-03 02:33:50,208 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 9 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s 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 [2022-11-03 02:33:50,209 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 59 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-03 02:33:50,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2022-11-03 02:33:50,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 55. [2022-11-03 02:33:50,213 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) [2022-11-03 02:33:50,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 62 transitions. [2022-11-03 02:33:50,214 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 62 transitions. Word has length 12 [2022-11-03 02:33:50,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:33:50,214 INFO L495 AbstractCegarLoop]: Abstraction has 55 states and 62 transitions. [2022-11-03 02:33:50,215 INFO L496 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) [2022-11-03 02:33:50,215 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 62 transitions. [2022-11-03 02:33:50,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-03 02:33:50,215 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:33:50,215 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2022-11-03 02:33:50,260 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_654ffbce-fddd-43d7-97a9-56350347d9c0/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-03 02:33:50,416 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_654ffbce-fddd-43d7-97a9-56350347d9c0/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:33:50,416 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 20 more)] === [2022-11-03 02:33:50,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:33:50,417 INFO L85 PathProgramCache]: Analyzing trace with hash 1840726210, now seen corresponding path program 1 times [2022-11-03 02:33:50,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:33:50,417 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [203974913] [2022-11-03 02:33:50,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:33:50,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:33:50,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:33:50,673 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:33:50,674 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:33:50,674 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [203974913] [2022-11-03 02:33:50,674 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [203974913] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:33:50,674 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [85720567] [2022-11-03 02:33:50,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:33:50,675 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:33:50,675 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_654ffbce-fddd-43d7-97a9-56350347d9c0/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:33:50,676 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_654ffbce-fddd-43d7-97a9-56350347d9c0/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:33:50,694 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_654ffbce-fddd-43d7-97a9-56350347d9c0/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-03 02:33:50,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:33:50,770 INFO L263 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-03 02:33:50,772 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:33:50,779 INFO L390 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 [2022-11-03 02:33:50,808 INFO L356 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-03 02:33:50,808 INFO L390 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 [2022-11-03 02:33:50,819 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:33:50,820 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:33:50,935 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:33:50,935 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [85720567] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:33:50,936 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1623996984] [2022-11-03 02:33:50,938 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2022-11-03 02:33:50,938 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 02:33:50,938 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 02:33:50,938 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 02:33:50,938 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 02:33:50,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:33:50,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:33:50,989 INFO L390 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 [2022-11-03 02:33:51,049 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:33:51,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:33:51,062 INFO L390 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 [2022-11-03 02:33:51,074 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:33:51,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:33:51,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:33:51,106 INFO L390 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 [2022-11-03 02:33:51,118 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:33:51,127 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:33:51,147 INFO L390 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 [2022-11-03 02:33:51,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:33:51,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:33:51,163 INFO L390 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 [2022-11-03 02:33:51,176 INFO L390 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 [2022-11-03 02:33:51,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:33:51,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:33:51,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:33:51,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:33:51,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:33:51,223 INFO L390 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 [2022-11-03 02:33:51,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:33:51,260 INFO L390 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 [2022-11-03 02:33:51,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:33:51,276 INFO L390 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 [2022-11-03 02:33:51,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:33:51,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:33:51,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:33:51,292 INFO L390 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 [2022-11-03 02:33:51,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:33:51,321 INFO L390 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 [2022-11-03 02:33:51,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:33:51,336 INFO L390 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 [2022-11-03 02:33:51,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:33:51,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:33:51,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:33:51,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:33:51,356 INFO L390 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 [2022-11-03 02:33:51,450 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:33:51,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:33:51,454 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:33:51,476 INFO L356 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2022-11-03 02:33:51,477 INFO L390 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 [2022-11-03 02:33:51,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:33:51,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:33:51,504 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:33:51,511 INFO L356 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2022-11-03 02:33:51,512 INFO L390 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 [2022-11-03 02:33:51,529 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:33:51,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:33:51,532 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:33:51,549 INFO L356 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2022-11-03 02:33:51,549 INFO L390 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 [2022-11-03 02:33:51,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:33:51,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:33:51,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:33:51,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:33:51,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:33:51,667 INFO L390 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 [2022-11-03 02:33:51,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:33:51,708 INFO L390 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 [2022-11-03 02:33:51,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:33:51,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:33:51,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:33:51,727 INFO L390 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 [2022-11-03 02:33:51,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:33:51,742 INFO L390 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 [2022-11-03 02:33:51,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:33:51,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:33:51,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:33:51,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:33:51,776 INFO L390 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 [2022-11-03 02:33:51,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:33:51,796 INFO L390 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 [2022-11-03 02:33:51,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:33:51,824 INFO L390 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 [2022-11-03 02:33:51,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:33:51,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:33:51,915 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:33:51,923 INFO L356 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2022-11-03 02:33:51,923 INFO L390 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 [2022-11-03 02:33:51,950 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:33:51,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:33:51,956 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:33:51,979 INFO L356 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2022-11-03 02:33:51,980 INFO L390 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 [2022-11-03 02:33:52,005 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:33:52,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:33:52,015 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:33:52,031 INFO L356 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2022-11-03 02:33:52,032 INFO L390 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 [2022-11-03 02:33:52,336 INFO L356 Elim1Store]: treesize reduction 54, result has 27.0 percent of original size [2022-11-03 02:33:52,337 INFO L390 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 [2022-11-03 02:33:52,599 INFO L356 Elim1Store]: treesize reduction 40, result has 27.3 percent of original size [2022-11-03 02:33:52,600 INFO L390 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 328 treesize of output 325 [2022-11-03 02:33:52,623 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:33:52,624 INFO L390 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 332 treesize of output 323 [2022-11-03 02:33:52,642 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:33:52,642 INFO L390 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 332 treesize of output 323 [2022-11-03 02:33:52,700 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 02:33:56,046 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1623996984] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:33:56,047 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-03 02:33:56,047 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [4, 3, 4] total 13 [2022-11-03 02:33:56,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687045580] [2022-11-03 02:33:56,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:33:56,048 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-03 02:33:56,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:33:56,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-03 02:33:56,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2022-11-03 02:33:56,049 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) [2022-11-03 02:33:56,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:33:56,743 INFO L93 Difference]: Finished difference Result 57 states and 64 transitions. [2022-11-03 02:33:56,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-03 02:33:56,743 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 [2022-11-03 02:33:56,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:33:56,745 INFO L225 Difference]: With dead ends: 57 [2022-11-03 02:33:56,745 INFO L226 Difference]: Without dead ends: 57 [2022-11-03 02:33:56,745 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 36 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2022-11-03 02:33:56,746 INFO L413 NwaCegarLoop]: 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 [2022-11-03 02:33:56,746 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 54 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-03 02:33:56,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2022-11-03 02:33:56,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 56. [2022-11-03 02:33:56,750 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) [2022-11-03 02:33:56,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 63 transitions. [2022-11-03 02:33:56,753 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 63 transitions. Word has length 15 [2022-11-03 02:33:56,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:33:56,754 INFO L495 AbstractCegarLoop]: Abstraction has 56 states and 63 transitions. [2022-11-03 02:33:56,754 INFO L496 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) [2022-11-03 02:33:56,754 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 63 transitions. [2022-11-03 02:33:56,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-03 02:33:56,755 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:33:56,755 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:33:56,780 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_654ffbce-fddd-43d7-97a9-56350347d9c0/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-03 02:33:56,962 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_654ffbce-fddd-43d7-97a9-56350347d9c0/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:33:56,963 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 20 more)] === [2022-11-03 02:33:56,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:33:56,963 INFO L85 PathProgramCache]: Analyzing trace with hash 247919927, now seen corresponding path program 1 times [2022-11-03 02:33:56,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:33:56,963 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668871613] [2022-11-03 02:33:56,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:33:56,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:33:56,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:33:57,076 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-03 02:33:57,076 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:33:57,076 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668871613] [2022-11-03 02:33:57,077 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1668871613] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:33:57,077 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:33:57,077 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 02:33:57,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279398214] [2022-11-03 02:33:57,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:33:57,078 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:33:57,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:33:57,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:33:57,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:33:57,079 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) [2022-11-03 02:33:57,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:33:57,162 INFO L93 Difference]: Finished difference Result 131 states and 146 transitions. [2022-11-03 02:33:57,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 02:33:57,163 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 [2022-11-03 02:33:57,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:33:57,164 INFO L225 Difference]: With dead ends: 131 [2022-11-03 02:33:57,164 INFO L226 Difference]: Without dead ends: 131 [2022-11-03 02:33:57,164 INFO L412 NwaCegarLoop]: 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 [2022-11-03 02:33:57,165 INFO L413 NwaCegarLoop]: 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 [2022-11-03 02:33:57,165 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 133 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:33:57,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2022-11-03 02:33:57,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 58. [2022-11-03 02:33:57,170 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) [2022-11-03 02:33:57,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 66 transitions. [2022-11-03 02:33:57,171 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 66 transitions. Word has length 20 [2022-11-03 02:33:57,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:33:57,171 INFO L495 AbstractCegarLoop]: Abstraction has 58 states and 66 transitions. [2022-11-03 02:33:57,171 INFO L496 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) [2022-11-03 02:33:57,172 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 66 transitions. [2022-11-03 02:33:57,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-03 02:33:57,172 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:33:57,172 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:33:57,173 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-03 02:33:57,173 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 20 more)] === [2022-11-03 02:33:57,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:33:57,173 INFO L85 PathProgramCache]: Analyzing trace with hash 247923406, now seen corresponding path program 1 times [2022-11-03 02:33:57,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:33:57,174 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307538264] [2022-11-03 02:33:57,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:33:57,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:33:57,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:33:57,284 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-03 02:33:57,284 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:33:57,284 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [307538264] [2022-11-03 02:33:57,284 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [307538264] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:33:57,284 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:33:57,285 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 02:33:57,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893960334] [2022-11-03 02:33:57,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:33:57,285 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:33:57,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:33:57,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:33:57,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:33:57,286 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) [2022-11-03 02:33:57,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:33:57,470 INFO L93 Difference]: Finished difference Result 98 states and 109 transitions. [2022-11-03 02:33:57,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 02:33:57,470 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 [2022-11-03 02:33:57,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:33:57,472 INFO L225 Difference]: With dead ends: 98 [2022-11-03 02:33:57,473 INFO L226 Difference]: Without dead ends: 98 [2022-11-03 02:33:57,473 INFO L412 NwaCegarLoop]: 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 [2022-11-03 02:33:57,474 INFO L413 NwaCegarLoop]: 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 [2022-11-03 02:33:57,474 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 57 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:33:57,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2022-11-03 02:33:57,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 60. [2022-11-03 02:33:57,495 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) [2022-11-03 02:33:57,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 71 transitions. [2022-11-03 02:33:57,498 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 71 transitions. Word has length 20 [2022-11-03 02:33:57,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:33:57,499 INFO L495 AbstractCegarLoop]: Abstraction has 60 states and 71 transitions. [2022-11-03 02:33:57,499 INFO L496 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) [2022-11-03 02:33:57,500 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 71 transitions. [2022-11-03 02:33:57,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-03 02:33:57,501 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:33:57,501 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:33:57,501 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-03 02:33:57,502 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 20 more)] === [2022-11-03 02:33:57,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:33:57,503 INFO L85 PathProgramCache]: Analyzing trace with hash 247923407, now seen corresponding path program 1 times [2022-11-03 02:33:57,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:33:57,504 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [35935402] [2022-11-03 02:33:57,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:33:57,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:33:57,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:33:57,803 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-03 02:33:57,803 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:33:57,803 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [35935402] [2022-11-03 02:33:57,804 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [35935402] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:33:57,804 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:33:57,804 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 02:33:57,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164841332] [2022-11-03 02:33:57,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:33:57,805 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:33:57,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:33:57,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:33:57,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:33:57,806 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) [2022-11-03 02:33:57,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:33:57,972 INFO L93 Difference]: Finished difference Result 84 states and 96 transitions. [2022-11-03 02:33:57,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 02:33:57,973 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 [2022-11-03 02:33:57,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:33:57,973 INFO L225 Difference]: With dead ends: 84 [2022-11-03 02:33:57,974 INFO L226 Difference]: Without dead ends: 84 [2022-11-03 02:33:57,974 INFO L412 NwaCegarLoop]: 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 [2022-11-03 02:33:57,974 INFO L413 NwaCegarLoop]: 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 [2022-11-03 02:33:57,975 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 50 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:33:57,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2022-11-03 02:33:57,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 58. [2022-11-03 02:33:57,978 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) [2022-11-03 02:33:57,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 67 transitions. [2022-11-03 02:33:57,979 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 67 transitions. Word has length 20 [2022-11-03 02:33:57,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:33:57,979 INFO L495 AbstractCegarLoop]: Abstraction has 58 states and 67 transitions. [2022-11-03 02:33:57,979 INFO L496 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) [2022-11-03 02:33:57,979 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 67 transitions. [2022-11-03 02:33:57,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-03 02:33:57,980 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:33:57,980 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:33:57,980 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-03 02:33:57,980 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr16REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 20 more)] === [2022-11-03 02:33:57,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:33:57,981 INFO L85 PathProgramCache]: Analyzing trace with hash -900739810, now seen corresponding path program 1 times [2022-11-03 02:33:57,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:33:57,981 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576164259] [2022-11-03 02:33:57,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:33:57,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:33:58,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:33:58,090 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-03 02:33:58,090 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:33:58,091 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576164259] [2022-11-03 02:33:58,091 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1576164259] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:33:58,091 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:33:58,091 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 02:33:58,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986470718] [2022-11-03 02:33:58,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:33:58,092 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:33:58,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:33:58,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:33:58,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:33:58,093 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) [2022-11-03 02:33:58,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:33:58,236 INFO L93 Difference]: Finished difference Result 68 states and 77 transitions. [2022-11-03 02:33:58,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 02:33:58,236 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 [2022-11-03 02:33:58,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:33:58,237 INFO L225 Difference]: With dead ends: 68 [2022-11-03 02:33:58,237 INFO L226 Difference]: Without dead ends: 68 [2022-11-03 02:33:58,237 INFO L412 NwaCegarLoop]: 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 [2022-11-03 02:33:58,238 INFO L413 NwaCegarLoop]: 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 [2022-11-03 02:33:58,238 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 35 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:33:58,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2022-11-03 02:33:58,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 59. [2022-11-03 02:33:58,241 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) [2022-11-03 02:33:58,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 70 transitions. [2022-11-03 02:33:58,242 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 70 transitions. Word has length 21 [2022-11-03 02:33:58,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:33:58,243 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 70 transitions. [2022-11-03 02:33:58,243 INFO L496 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) [2022-11-03 02:33:58,243 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 70 transitions. [2022-11-03 02:33:58,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-03 02:33:58,244 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:33:58,244 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:33:58,244 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-03 02:33:58,244 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr17REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 20 more)] === [2022-11-03 02:33:58,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:33:58,245 INFO L85 PathProgramCache]: Analyzing trace with hash -900739809, now seen corresponding path program 1 times [2022-11-03 02:33:58,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:33:58,245 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1156915123] [2022-11-03 02:33:58,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:33:58,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:33:58,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:33:58,384 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-03 02:33:58,385 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:33:58,385 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1156915123] [2022-11-03 02:33:58,385 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1156915123] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:33:58,385 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1616461763] [2022-11-03 02:33:58,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:33:58,386 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:33:58,386 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_654ffbce-fddd-43d7-97a9-56350347d9c0/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:33:58,387 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_654ffbce-fddd-43d7-97a9-56350347d9c0/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:33:58,410 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_654ffbce-fddd-43d7-97a9-56350347d9c0/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-03 02:33:58,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:33:58,512 INFO L263 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-03 02:33:58,514 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:33:58,551 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-03 02:33:58,551 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:33:58,551 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1616461763] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:33:58,551 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-03 02:33:58,552 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2022-11-03 02:33:58,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347148517] [2022-11-03 02:33:58,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:33:58,552 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:33:58,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:33:58,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:33:58,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:33:58,554 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) [2022-11-03 02:33:58,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:33:58,599 INFO L93 Difference]: Finished difference Result 71 states and 82 transitions. [2022-11-03 02:33:58,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 02:33:58,600 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 [2022-11-03 02:33:58,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:33:58,603 INFO L225 Difference]: With dead ends: 71 [2022-11-03 02:33:58,603 INFO L226 Difference]: Without dead ends: 71 [2022-11-03 02:33:58,604 INFO L412 NwaCegarLoop]: 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 [2022-11-03 02:33:58,604 INFO L413 NwaCegarLoop]: 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 [2022-11-03 02:33:58,605 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 60 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 02:33:58,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2022-11-03 02:33:58,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 60. [2022-11-03 02:33:58,608 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) [2022-11-03 02:33:58,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 70 transitions. [2022-11-03 02:33:58,615 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 70 transitions. Word has length 21 [2022-11-03 02:33:58,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:33:58,616 INFO L495 AbstractCegarLoop]: Abstraction has 60 states and 70 transitions. [2022-11-03 02:33:58,617 INFO L496 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) [2022-11-03 02:33:58,617 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 70 transitions. [2022-11-03 02:33:58,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-03 02:33:58,621 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:33:58,622 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:33:58,660 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_654ffbce-fddd-43d7-97a9-56350347d9c0/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-03 02:33:58,838 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_654ffbce-fddd-43d7-97a9-56350347d9c0/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-11-03 02:33:58,839 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 20 more)] === [2022-11-03 02:33:58,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:33:58,839 INFO L85 PathProgramCache]: Analyzing trace with hash 2145930258, now seen corresponding path program 1 times [2022-11-03 02:33:58,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:33:58,839 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977733235] [2022-11-03 02:33:58,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:33:58,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:33:58,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:33:58,964 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-03 02:33:58,964 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:33:58,964 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977733235] [2022-11-03 02:33:58,964 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1977733235] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:33:58,965 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:33:58,965 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 02:33:58,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874178029] [2022-11-03 02:33:58,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:33:58,966 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:33:58,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:33:58,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:33:58,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:33:58,967 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) [2022-11-03 02:33:59,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:33:59,019 INFO L93 Difference]: Finished difference Result 82 states and 95 transitions. [2022-11-03 02:33:59,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 02:33:59,019 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 [2022-11-03 02:33:59,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:33:59,020 INFO L225 Difference]: With dead ends: 82 [2022-11-03 02:33:59,020 INFO L226 Difference]: Without dead ends: 82 [2022-11-03 02:33:59,020 INFO L412 NwaCegarLoop]: 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 [2022-11-03 02:33:59,021 INFO L413 NwaCegarLoop]: 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 [2022-11-03 02:33:59,022 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 90 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 02:33:59,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2022-11-03 02:33:59,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 61. [2022-11-03 02:33:59,029 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) [2022-11-03 02:33:59,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 71 transitions. [2022-11-03 02:33:59,031 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 71 transitions. Word has length 24 [2022-11-03 02:33:59,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:33:59,031 INFO L495 AbstractCegarLoop]: Abstraction has 61 states and 71 transitions. [2022-11-03 02:33:59,031 INFO L496 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) [2022-11-03 02:33:59,031 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 71 transitions. [2022-11-03 02:33:59,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-03 02:33:59,033 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:33:59,033 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:33:59,033 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-03 02:33:59,034 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 20 more)] === [2022-11-03 02:33:59,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:33:59,034 INFO L85 PathProgramCache]: Analyzing trace with hash 2145932435, now seen corresponding path program 1 times [2022-11-03 02:33:59,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:33:59,035 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163624155] [2022-11-03 02:33:59,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:33:59,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:33:59,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:33:59,171 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-03 02:33:59,171 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:33:59,171 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [163624155] [2022-11-03 02:33:59,171 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [163624155] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:33:59,171 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:33:59,172 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 02:33:59,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955937223] [2022-11-03 02:33:59,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:33:59,176 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:33:59,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:33:59,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:33:59,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:33:59,177 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) [2022-11-03 02:33:59,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:33:59,297 INFO L93 Difference]: Finished difference Result 75 states and 84 transitions. [2022-11-03 02:33:59,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 02:33:59,297 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 [2022-11-03 02:33:59,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:33:59,298 INFO L225 Difference]: With dead ends: 75 [2022-11-03 02:33:59,298 INFO L226 Difference]: Without dead ends: 75 [2022-11-03 02:33:59,298 INFO L412 NwaCegarLoop]: 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 [2022-11-03 02:33:59,299 INFO L413 NwaCegarLoop]: 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 [2022-11-03 02:33:59,299 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 45 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:33:59,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2022-11-03 02:33:59,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 64. [2022-11-03 02:33:59,301 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) [2022-11-03 02:33:59,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 77 transitions. [2022-11-03 02:33:59,301 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 77 transitions. Word has length 24 [2022-11-03 02:33:59,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:33:59,302 INFO L495 AbstractCegarLoop]: Abstraction has 64 states and 77 transitions. [2022-11-03 02:33:59,302 INFO L496 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) [2022-11-03 02:33:59,302 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 77 transitions. [2022-11-03 02:33:59,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-03 02:33:59,302 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:33:59,302 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:33:59,302 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-03 02:33:59,303 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 20 more)] === [2022-11-03 02:33:59,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:33:59,303 INFO L85 PathProgramCache]: Analyzing trace with hash 2145932436, now seen corresponding path program 1 times [2022-11-03 02:33:59,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:33:59,303 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385380318] [2022-11-03 02:33:59,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:33:59,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:33:59,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:33:59,447 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-03 02:33:59,447 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:33:59,447 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1385380318] [2022-11-03 02:33:59,447 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1385380318] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:33:59,448 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1437579173] [2022-11-03 02:33:59,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:33:59,448 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:33:59,448 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_654ffbce-fddd-43d7-97a9-56350347d9c0/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:33:59,449 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_654ffbce-fddd-43d7-97a9-56350347d9c0/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:33:59,457 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_654ffbce-fddd-43d7-97a9-56350347d9c0/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-03 02:33:59,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:33:59,577 INFO L263 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 02:33:59,578 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:33:59,627 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-03 02:33:59,627 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:33:59,672 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-03 02:33:59,672 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1437579173] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:33:59,673 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [792703970] [2022-11-03 02:33:59,675 INFO L159 IcfgInterpreter]: Started Sifa with 16 locations of interest [2022-11-03 02:33:59,675 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 02:33:59,676 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 02:33:59,676 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 02:33:59,676 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 02:33:59,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:33:59,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:33:59,702 INFO L390 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 [2022-11-03 02:33:59,725 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:33:59,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:33:59,734 INFO L390 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 [2022-11-03 02:33:59,745 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:33:59,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:33:59,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:33:59,767 INFO L390 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 [2022-11-03 02:33:59,776 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:33:59,803 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:33:59,821 INFO L390 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 [2022-11-03 02:33:59,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:33:59,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:33:59,834 INFO L390 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 [2022-11-03 02:33:59,847 INFO L390 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 [2022-11-03 02:33:59,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:33:59,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:33:59,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:33:59,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:33:59,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:33:59,907 INFO L390 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 [2022-11-03 02:33:59,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:33:59,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:33:59,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:33:59,947 INFO L390 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 [2022-11-03 02:33:59,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:33:59,960 INFO L390 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 [2022-11-03 02:33:59,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:33:59,975 INFO L390 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 [2022-11-03 02:34:00,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:00,003 INFO L390 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 [2022-11-03 02:34:00,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:00,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:00,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:00,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:00,022 INFO L390 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 [2022-11-03 02:34:00,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:00,041 INFO L390 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 [2022-11-03 02:34:00,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:00,069 INFO L390 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 [2022-11-03 02:34:00,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:00,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:00,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:00,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:00,087 INFO L390 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 [2022-11-03 02:34:00,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:00,101 INFO L390 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 [2022-11-03 02:34:00,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:00,154 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:34:00,155 INFO L390 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 [2022-11-03 02:34:00,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:00,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:00,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:00,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:00,173 INFO L390 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 [2022-11-03 02:34:00,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:00,193 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:34:00,201 INFO L390 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 [2022-11-03 02:34:00,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:00,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:00,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:00,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:00,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:00,440 INFO L390 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 [2022-11-03 02:34:00,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:00,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:00,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:00,489 INFO L390 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 [2022-11-03 02:34:00,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:00,502 INFO L390 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 [2022-11-03 02:34:00,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:00,514 INFO L390 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 [2022-11-03 02:34:00,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:00,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:00,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:00,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:00,556 INFO L390 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 [2022-11-03 02:34:00,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:00,571 INFO L390 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 [2022-11-03 02:34:00,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:00,585 INFO L390 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 [2022-11-03 02:34:00,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:00,618 INFO L390 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 [2022-11-03 02:34:00,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:00,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:00,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:00,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:00,639 INFO L390 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 [2022-11-03 02:34:00,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:00,655 INFO L390 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 [2022-11-03 02:34:00,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:00,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:00,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:00,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:00,709 INFO L390 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 [2022-11-03 02:34:00,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:00,728 INFO L390 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 [2022-11-03 02:34:00,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:00,747 INFO L390 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 [2022-11-03 02:34:00,997 INFO L390 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 [2022-11-03 02:34:01,008 INFO L390 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 [2022-11-03 02:34:01,020 INFO L390 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 [2022-11-03 02:34:01,090 INFO L390 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 [2022-11-03 02:34:01,101 INFO L390 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 [2022-11-03 02:34:01,111 INFO L390 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 [2022-11-03 02:34:01,198 INFO L390 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 [2022-11-03 02:34:01,208 INFO L390 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 [2022-11-03 02:34:01,220 INFO L390 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 [2022-11-03 02:34:01,286 INFO L390 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 [2022-11-03 02:34:01,293 INFO L390 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 [2022-11-03 02:34:01,326 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:34:01,337 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:34:01,345 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:34:01,379 INFO L390 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 [2022-11-03 02:34:01,386 INFO L390 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 [2022-11-03 02:34:01,396 INFO L390 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 [2022-11-03 02:34:01,426 INFO L390 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 [2022-11-03 02:34:01,436 INFO L390 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 [2022-11-03 02:34:01,451 INFO L390 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 [2022-11-03 02:34:01,466 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 02:34:03,833 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|) (not (<= (+ |ULTIMATE.start_dll_get_data_at_~head#1.offset| 4) (select |#length| |ULTIMATE.start_dll_get_data_at_~head#1.base|))) (= |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_#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 [2022-11-03 02:34:03,833 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 02:34:03,833 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 02:34:03,833 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 8 [2022-11-03 02:34:03,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528339778] [2022-11-03 02:34:03,833 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 02:34:03,834 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-03 02:34:03,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:34:03,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-03 02:34:03,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=352, Unknown=0, NotChecked=0, Total=462 [2022-11-03 02:34:03,835 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) [2022-11-03 02:34:03,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:34:03,937 INFO L93 Difference]: Finished difference Result 96 states and 115 transitions. [2022-11-03 02:34:03,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 02:34:03,938 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 [2022-11-03 02:34:03,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:34:03,940 INFO L225 Difference]: With dead ends: 96 [2022-11-03 02:34:03,940 INFO L226 Difference]: Without dead ends: 96 [2022-11-03 02:34:03,940 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 52 SyntacticMatches, 3 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 210 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=120, Invalid=386, Unknown=0, NotChecked=0, Total=506 [2022-11-03 02:34:03,941 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 81 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-11-03 02:34:03,941 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 136 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:34:03,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2022-11-03 02:34:03,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 69. [2022-11-03 02:34:03,944 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) [2022-11-03 02:34:03,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 84 transitions. [2022-11-03 02:34:03,944 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 84 transitions. Word has length 24 [2022-11-03 02:34:03,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:34:03,945 INFO L495 AbstractCegarLoop]: Abstraction has 69 states and 84 transitions. [2022-11-03 02:34:03,945 INFO L496 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) [2022-11-03 02:34:03,945 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 84 transitions. [2022-11-03 02:34:03,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-03 02:34:03,945 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:34:03,945 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:34:03,990 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_654ffbce-fddd-43d7-97a9-56350347d9c0/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-03 02:34:04,166 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_654ffbce-fddd-43d7-97a9-56350347d9c0/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-11-03 02:34:04,166 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 20 more)] === [2022-11-03 02:34:04,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:34:04,167 INFO L85 PathProgramCache]: Analyzing trace with hash 1987792857, now seen corresponding path program 1 times [2022-11-03 02:34:04,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:34:04,167 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356849469] [2022-11-03 02:34:04,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:34:04,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:34:04,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:34:04,315 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-03 02:34:04,315 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:34:04,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356849469] [2022-11-03 02:34:04,315 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [356849469] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:34:04,316 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [289675478] [2022-11-03 02:34:04,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:34:04,316 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:34:04,316 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_654ffbce-fddd-43d7-97a9-56350347d9c0/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:34:04,317 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_654ffbce-fddd-43d7-97a9-56350347d9c0/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:34:04,321 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_654ffbce-fddd-43d7-97a9-56350347d9c0/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-03 02:34:04,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:34:04,453 INFO L263 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-03 02:34:04,454 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:34:04,480 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-03 02:34:04,481 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:34:04,515 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-03 02:34:04,516 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [289675478] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:34:04,516 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1196547605] [2022-11-03 02:34:04,518 INFO L159 IcfgInterpreter]: Started Sifa with 14 locations of interest [2022-11-03 02:34:04,518 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 02:34:04,518 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 02:34:04,519 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 02:34:04,519 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 02:34:04,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:04,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:04,544 INFO L390 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 [2022-11-03 02:34:04,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:04,572 INFO L390 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 [2022-11-03 02:34:04,582 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:34:04,590 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:34:04,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:04,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:04,622 INFO L390 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 [2022-11-03 02:34:04,635 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:34:04,643 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:34:04,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:04,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:04,665 INFO L390 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 [2022-11-03 02:34:04,676 INFO L390 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 [2022-11-03 02:34:04,685 INFO L390 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 [2022-11-03 02:34:04,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:04,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:04,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:04,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:04,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:04,742 INFO L390 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 [2022-11-03 02:34:04,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:04,785 INFO L390 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 [2022-11-03 02:34:04,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:04,800 INFO L390 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 [2022-11-03 02:34:04,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:04,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:04,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:04,819 INFO L390 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 [2022-11-03 02:34:04,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:04,851 INFO L390 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 [2022-11-03 02:34:04,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:04,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:04,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:04,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:04,867 INFO L390 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 [2022-11-03 02:34:04,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:04,883 INFO L390 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 [2022-11-03 02:34:04,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:04,911 INFO L390 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 [2022-11-03 02:34:04,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:04,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:04,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:04,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:04,934 INFO L390 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 [2022-11-03 02:34:04,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:04,950 INFO L390 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 [2022-11-03 02:34:04,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:04,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:05,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:05,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:05,003 INFO L390 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 [2022-11-03 02:34:05,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:05,020 INFO L390 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 [2022-11-03 02:34:05,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:05,037 INFO L390 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 [2022-11-03 02:34:05,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:05,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:05,317 INFO L356 Elim1Store]: treesize reduction 34, result has 41.4 percent of original size [2022-11-03 02:34:05,317 INFO L390 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 [2022-11-03 02:34:05,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:05,374 INFO L390 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 [2022-11-03 02:34:05,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:05,391 INFO L390 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 [2022-11-03 02:34:05,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:05,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:05,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:05,411 INFO L390 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 [2022-11-03 02:34:05,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:05,449 INFO L390 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 [2022-11-03 02:34:05,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:05,465 INFO L390 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 [2022-11-03 02:34:05,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:05,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:05,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:05,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:05,484 INFO L390 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 [2022-11-03 02:34:05,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:05,534 INFO L390 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 [2022-11-03 02:34:05,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:05,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:05,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:05,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:05,558 INFO L390 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 [2022-11-03 02:34:05,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:05,578 INFO L390 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 [2022-11-03 02:34:05,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:05,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:05,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:05,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:05,636 INFO L390 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 [2022-11-03 02:34:05,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:05,659 INFO L390 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 [2022-11-03 02:34:05,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:05,679 INFO L390 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 [2022-11-03 02:34:05,723 INFO L390 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 [2022-11-03 02:34:05,728 INFO L390 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 [2022-11-03 02:34:05,744 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:34:05,751 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:34:05,758 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:34:05,770 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:34:05,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:05,779 INFO L390 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 [2022-11-03 02:34:05,789 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:34:05,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:05,803 INFO L390 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 [2022-11-03 02:34:05,811 INFO L390 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 [2022-11-03 02:34:05,820 INFO L390 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 [2022-11-03 02:34:05,846 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:34:05,855 INFO L356 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-11-03 02:34:05,856 INFO L390 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 [2022-11-03 02:34:05,868 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:34:05,881 INFO L356 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-11-03 02:34:05,881 INFO L390 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 [2022-11-03 02:34:05,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:05,896 INFO L390 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 [2022-11-03 02:34:05,952 INFO L390 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 [2022-11-03 02:34:05,960 INFO L390 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 [2022-11-03 02:34:05,988 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:34:05,997 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:34:06,004 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:34:06,017 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:34:06,024 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:34:06,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:06,033 INFO L390 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 [2022-11-03 02:34:06,048 INFO L390 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 [2022-11-03 02:34:06,058 INFO L390 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 [2022-11-03 02:34:06,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:06,069 INFO L390 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 [2022-11-03 02:34:06,093 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:34:06,104 INFO L356 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-11-03 02:34:06,105 INFO L390 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 [2022-11-03 02:34:06,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:06,117 INFO L390 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 [2022-11-03 02:34:06,128 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:34:06,138 INFO L356 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-11-03 02:34:06,138 INFO L390 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 [2022-11-03 02:34:06,247 INFO L390 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 [2022-11-03 02:34:06,264 INFO L390 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 [2022-11-03 02:34:06,280 INFO L390 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 [2022-11-03 02:34:06,381 INFO L390 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 [2022-11-03 02:34:06,416 INFO L390 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 [2022-11-03 02:34:06,424 INFO L390 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 [2022-11-03 02:34:06,541 INFO L390 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 [2022-11-03 02:34:06,552 INFO L390 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 [2022-11-03 02:34:06,563 INFO L390 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 [2022-11-03 02:34:06,587 INFO L390 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 [2022-11-03 02:34:06,594 INFO L390 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 [2022-11-03 02:34:06,608 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:34:06,615 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:34:06,622 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:34:06,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:06,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:06,690 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:34:06,696 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 02:34:06,697 INFO L390 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 [2022-11-03 02:34:06,723 INFO L390 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 [2022-11-03 02:34:06,735 INFO L390 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 [2022-11-03 02:34:06,792 INFO L390 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 [2022-11-03 02:34:06,827 INFO L390 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 [2022-11-03 02:34:06,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:06,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:06,842 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:34:06,849 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 02:34:06,850 INFO L390 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 [2022-11-03 02:34:06,887 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 02:34:08,883 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 [2022-11-03 02:34:08,883 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 02:34:08,884 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 02:34:08,884 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 7 [2022-11-03 02:34:08,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906733166] [2022-11-03 02:34:08,884 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 02:34:08,885 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-03 02:34:08,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:34:08,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-03 02:34:08,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=267, Unknown=0, NotChecked=0, Total=342 [2022-11-03 02:34:08,885 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) [2022-11-03 02:34:08,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:34:08,969 INFO L93 Difference]: Finished difference Result 92 states and 110 transitions. [2022-11-03 02:34:08,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 02:34:08,970 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 [2022-11-03 02:34:08,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:34:08,970 INFO L225 Difference]: With dead ends: 92 [2022-11-03 02:34:08,971 INFO L226 Difference]: Without dead ends: 92 [2022-11-03 02:34:08,971 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 58 SyntacticMatches, 4 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=94, Invalid=368, Unknown=0, NotChecked=0, Total=462 [2022-11-03 02:34:08,972 INFO L413 NwaCegarLoop]: 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 [2022-11-03 02:34:08,972 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 99 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:34:08,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2022-11-03 02:34:08,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 72. [2022-11-03 02:34:08,975 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) [2022-11-03 02:34:08,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 88 transitions. [2022-11-03 02:34:08,975 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 88 transitions. Word has length 25 [2022-11-03 02:34:08,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:34:08,976 INFO L495 AbstractCegarLoop]: Abstraction has 72 states and 88 transitions. [2022-11-03 02:34:08,976 INFO L496 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) [2022-11-03 02:34:08,976 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 88 transitions. [2022-11-03 02:34:08,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-03 02:34:08,977 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:34:08,977 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:34:09,011 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_654ffbce-fddd-43d7-97a9-56350347d9c0/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-03 02:34:09,198 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_654ffbce-fddd-43d7-97a9-56350347d9c0/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-11-03 02:34:09,198 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 20 more)] === [2022-11-03 02:34:09,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:34:09,199 INFO L85 PathProgramCache]: Analyzing trace with hash 1987796336, now seen corresponding path program 1 times [2022-11-03 02:34:09,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:34:09,199 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395162814] [2022-11-03 02:34:09,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:34:09,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:34:09,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:34:09,927 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-03 02:34:09,928 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:34:09,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1395162814] [2022-11-03 02:34:09,928 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1395162814] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:34:09,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [772574437] [2022-11-03 02:34:09,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:34:09,928 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:34:09,929 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_654ffbce-fddd-43d7-97a9-56350347d9c0/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:34:09,931 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_654ffbce-fddd-43d7-97a9-56350347d9c0/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:34:09,953 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_654ffbce-fddd-43d7-97a9-56350347d9c0/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-03 02:34:10,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:34:10,079 INFO L263 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 49 conjunts are in the unsatisfiable core [2022-11-03 02:34:10,082 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:34:10,085 INFO L390 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 [2022-11-03 02:34:10,117 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-03 02:34:10,118 INFO L390 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 [2022-11-03 02:34:10,138 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:34:10,161 INFO L390 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 [2022-11-03 02:34:10,179 INFO L356 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-03 02:34:10,179 INFO L390 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 [2022-11-03 02:34:10,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:10,297 INFO L390 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 [2022-11-03 02:34:10,346 INFO L390 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 [2022-11-03 02:34:10,351 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 11 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-03 02:34:10,351 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:34:16,375 INFO L356 Elim1Store]: treesize reduction 5, result has 70.6 percent of original size [2022-11-03 02:34:16,375 INFO L390 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 [2022-11-03 02:34:16,381 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_845 (Array Int Int))) (= (select (select (store |c_#memory_$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)) |c_ULTIMATE.start_dll_create_~head~0#1.base|)) is different from false [2022-11-03 02:34:16,398 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_845 (Array Int Int)) (v_ArrVal_843 Int)) (= (select (select (store (store |c_#memory_$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|) (+ 8 |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|) 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)) |c_ULTIMATE.start_dll_create_~head~0#1.base|)) is different from false [2022-11-03 02:34:16,409 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:34:16,409 INFO L390 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 [2022-11-03 02:34:16,414 INFO L390 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 [2022-11-03 02:34:16,419 INFO L390 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 [2022-11-03 02:34:16,475 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 2 not checked. [2022-11-03 02:34:16,475 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [772574437] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:34:16,475 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1496745963] [2022-11-03 02:34:16,477 INFO L159 IcfgInterpreter]: Started Sifa with 14 locations of interest [2022-11-03 02:34:16,477 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 02:34:16,477 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 02:34:16,478 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 02:34:16,478 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 02:34:16,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:16,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:16,516 INFO L390 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 [2022-11-03 02:34:16,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:16,537 INFO L390 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 [2022-11-03 02:34:16,547 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:34:16,556 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:34:16,572 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:34:16,581 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:34:16,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:16,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:16,594 INFO L390 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 [2022-11-03 02:34:16,613 INFO L390 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 [2022-11-03 02:34:16,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:16,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:16,625 INFO L390 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 [2022-11-03 02:34:16,636 INFO L390 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 [2022-11-03 02:34:16,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:16,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:16,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:16,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:16,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:16,694 INFO L390 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 [2022-11-03 02:34:16,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:16,730 INFO L390 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 [2022-11-03 02:34:16,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:16,742 INFO L390 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 [2022-11-03 02:34:16,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:16,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:16,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:16,759 INFO L390 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 [2022-11-03 02:34:16,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:16,788 INFO L390 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 [2022-11-03 02:34:16,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:16,803 INFO L390 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 [2022-11-03 02:34:16,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:16,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:16,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:16,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:16,821 INFO L390 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 [2022-11-03 02:34:16,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:16,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:16,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:16,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:16,856 INFO L390 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 [2022-11-03 02:34:16,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:16,874 INFO L390 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 [2022-11-03 02:34:16,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:16,889 INFO L390 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 [2022-11-03 02:34:16,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:16,931 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:34:16,932 INFO L390 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 [2022-11-03 02:34:16,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:16,950 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:34:16,951 INFO L390 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 [2022-11-03 02:34:16,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:16,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:16,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:16,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:16,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:16,973 INFO L390 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 [2022-11-03 02:34:17,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:17,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:17,222 INFO L356 Elim1Store]: treesize reduction 34, result has 41.4 percent of original size [2022-11-03 02:34:17,222 INFO L390 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 [2022-11-03 02:34:17,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:17,277 INFO L390 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 [2022-11-03 02:34:17,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:17,298 INFO L390 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 [2022-11-03 02:34:17,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:17,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:17,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:17,314 INFO L390 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 [2022-11-03 02:34:17,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:17,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:17,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:17,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:17,352 INFO L390 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 [2022-11-03 02:34:17,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:17,368 INFO L390 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 [2022-11-03 02:34:17,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:17,385 INFO L390 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 [2022-11-03 02:34:17,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:17,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:17,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:17,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:17,429 INFO L390 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 [2022-11-03 02:34:17,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:17,443 INFO L390 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 [2022-11-03 02:34:17,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:17,460 INFO L390 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 [2022-11-03 02:34:17,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:17,517 INFO L390 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 [2022-11-03 02:34:17,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:17,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:17,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:17,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:17,548 INFO L390 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 [2022-11-03 02:34:17,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:17,565 INFO L390 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 [2022-11-03 02:34:17,622 INFO L390 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 [2022-11-03 02:34:17,629 INFO L390 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 [2022-11-03 02:34:17,642 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:34:17,648 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:34:17,657 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:34:17,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:17,672 INFO L390 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 [2022-11-03 02:34:17,678 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:34:17,685 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:34:17,697 INFO L390 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 [2022-11-03 02:34:17,706 INFO L390 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 [2022-11-03 02:34:17,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:17,716 INFO L390 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 [2022-11-03 02:34:17,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:17,739 INFO L390 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 [2022-11-03 02:34:17,751 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:34:17,763 INFO L356 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-11-03 02:34:17,763 INFO L390 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 [2022-11-03 02:34:17,777 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:34:17,792 INFO L356 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-11-03 02:34:17,792 INFO L390 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 [2022-11-03 02:34:17,845 INFO L390 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 [2022-11-03 02:34:17,850 INFO L390 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 [2022-11-03 02:34:17,868 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:34:17,876 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:34:17,885 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:34:17,896 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:34:17,909 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:34:17,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:17,919 INFO L390 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 [2022-11-03 02:34:17,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:17,934 INFO L390 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 [2022-11-03 02:34:17,944 INFO L390 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 [2022-11-03 02:34:17,955 INFO L390 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 [2022-11-03 02:34:17,986 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:34:17,996 INFO L356 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-11-03 02:34:17,997 INFO L390 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 [2022-11-03 02:34:18,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:18,009 INFO L390 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 [2022-11-03 02:34:18,019 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:34:18,031 INFO L356 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-11-03 02:34:18,031 INFO L390 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 [2022-11-03 02:34:18,142 INFO L390 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 [2022-11-03 02:34:18,157 INFO L390 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 [2022-11-03 02:34:18,178 INFO L390 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 [2022-11-03 02:34:18,268 INFO L390 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 [2022-11-03 02:34:18,294 INFO L390 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 [2022-11-03 02:34:18,306 INFO L390 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 [2022-11-03 02:34:18,414 INFO L390 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 [2022-11-03 02:34:18,424 INFO L390 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 [2022-11-03 02:34:18,432 INFO L390 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 [2022-11-03 02:34:18,485 INFO L390 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 [2022-11-03 02:34:18,491 INFO L390 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 [2022-11-03 02:34:18,509 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:34:18,515 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:34:18,523 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:34:18,589 INFO L390 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 [2022-11-03 02:34:18,597 INFO L390 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 [2022-11-03 02:34:18,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:18,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:18,611 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:34:18,617 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 02:34:18,618 INFO L390 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 [2022-11-03 02:34:18,684 INFO L390 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 [2022-11-03 02:34:18,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:18,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:18,702 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:34:18,710 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 02:34:18,710 INFO L390 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 [2022-11-03 02:34:18,741 INFO L390 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 [2022-11-03 02:34:18,764 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 02:34:21,382 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) (not (< 0 |ULTIMATE.start_dll_update_at_~index#1|)) (<= 0 |ULTIMATE.start_dll_update_at_#in~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 [2022-11-03 02:34:21,382 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 02:34:21,382 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 02:34:21,382 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 12] total 28 [2022-11-03 02:34:21,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7526568] [2022-11-03 02:34:21,382 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 02:34:21,383 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-11-03 02:34:21,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:34:21,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-11-03 02:34:21,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=160, Invalid=1327, Unknown=3, NotChecked=150, Total=1640 [2022-11-03 02:34:21,384 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) [2022-11-03 02:34:22,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:34:22,842 INFO L93 Difference]: Finished difference Result 182 states and 220 transitions. [2022-11-03 02:34:22,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-03 02:34:22,843 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 [2022-11-03 02:34:22,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:34:22,843 INFO L225 Difference]: With dead ends: 182 [2022-11-03 02:34:22,844 INFO L226 Difference]: Without dead ends: 182 [2022-11-03 02:34:22,845 INFO L412 NwaCegarLoop]: 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 [2022-11-03 02:34:22,845 INFO L413 NwaCegarLoop]: 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 [2022-11-03 02:34:22,845 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [558 Valid, 450 Invalid, 1286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 945 Invalid, 0 Unknown, 282 Unchecked, 0.8s Time] [2022-11-03 02:34:22,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2022-11-03 02:34:22,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 94. [2022-11-03 02:34:22,849 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) [2022-11-03 02:34:22,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 118 transitions. [2022-11-03 02:34:22,849 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 118 transitions. Word has length 25 [2022-11-03 02:34:22,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:34:22,850 INFO L495 AbstractCegarLoop]: Abstraction has 94 states and 118 transitions. [2022-11-03 02:34:22,851 INFO L496 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) [2022-11-03 02:34:22,852 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 118 transitions. [2022-11-03 02:34:22,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-03 02:34:22,852 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:34:22,852 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:34:22,895 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_654ffbce-fddd-43d7-97a9-56350347d9c0/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-03 02:34:23,062 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_654ffbce-fddd-43d7-97a9-56350347d9c0/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-11-03 02:34:23,063 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 20 more)] === [2022-11-03 02:34:23,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:34:23,063 INFO L85 PathProgramCache]: Analyzing trace with hash 1987796337, now seen corresponding path program 1 times [2022-11-03 02:34:23,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:34:23,063 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [202644633] [2022-11-03 02:34:23,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:34:23,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:34:23,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:34:24,125 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 11 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-03 02:34:24,125 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:34:24,126 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [202644633] [2022-11-03 02:34:24,126 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [202644633] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:34:24,126 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [353964788] [2022-11-03 02:34:24,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:34:24,126 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:34:24,126 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_654ffbce-fddd-43d7-97a9-56350347d9c0/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:34:24,127 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_654ffbce-fddd-43d7-97a9-56350347d9c0/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:34:24,146 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_654ffbce-fddd-43d7-97a9-56350347d9c0/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-03 02:34:24,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:34:24,276 INFO L263 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 61 conjunts are in the unsatisfiable core [2022-11-03 02:34:24,285 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:34:24,289 INFO L390 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 [2022-11-03 02:34:24,352 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-03 02:34:24,352 INFO L390 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 [2022-11-03 02:34:24,390 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:34:24,395 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:34:24,437 INFO L390 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 [2022-11-03 02:34:24,445 INFO L390 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 [2022-11-03 02:34:24,476 INFO L356 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-03 02:34:24,476 INFO L390 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 [2022-11-03 02:34:24,483 INFO L390 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 [2022-11-03 02:34:24,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:24,674 INFO L390 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 [2022-11-03 02:34:24,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:24,688 INFO L390 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 [2022-11-03 02:34:24,749 INFO L390 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 [2022-11-03 02:34:24,752 INFO L390 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 [2022-11-03 02:34:24,784 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 11 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-03 02:34:24,784 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:34:27,046 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~s~0#1.base|)) (.cse1 (+ |c_ULTIMATE.start_main_~s~0#1.offset| 4))) (and (forall ((|v_ULTIMATE.start_dll_update_at_~head#1.offset_37| Int)) (or (forall ((v_ArrVal_965 Int)) (<= 0 (select (store .cse0 |v_ULTIMATE.start_dll_update_at_~head#1.offset_37| v_ArrVal_965) .cse1))) (< |c_ULTIMATE.start_main_~s~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_37|))) (forall ((|v_ULTIMATE.start_dll_update_at_~head#1.offset_37| Int)) (or (forall ((v_ArrVal_965 Int) (v_ArrVal_964 Int)) (<= (+ (select (store .cse0 |v_ULTIMATE.start_dll_update_at_~head#1.offset_37| v_ArrVal_965) .cse1) 4) (select |c_#length| (select (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~s~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_37| v_ArrVal_964) .cse1)))) (< |c_ULTIMATE.start_main_~s~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_37|))))) is different from false [2022-11-03 02:34:29,069 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~head~0#1.base|)) (.cse1 (+ |c_ULTIMATE.start_dll_create_~head~0#1.offset| 4))) (and (forall ((|v_ULTIMATE.start_dll_update_at_~head#1.offset_37| Int)) (or (forall ((v_ArrVal_965 Int) (v_ArrVal_964 Int)) (<= (+ (select (store .cse0 |v_ULTIMATE.start_dll_update_at_~head#1.offset_37| v_ArrVal_965) .cse1) 4) (select |c_#length| (select (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_37| v_ArrVal_964) .cse1)))) (< |c_ULTIMATE.start_dll_create_~head~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_37|))) (forall ((|v_ULTIMATE.start_dll_update_at_~head#1.offset_37| Int)) (or (forall ((v_ArrVal_965 Int)) (<= 0 (select (store .cse0 |v_ULTIMATE.start_dll_update_at_~head#1.offset_37| v_ArrVal_965) .cse1))) (< |c_ULTIMATE.start_dll_create_~head~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_37|))))) is different from false [2022-11-03 02:34:31,091 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|)) (.cse1 (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 4))) (and (forall ((|v_ULTIMATE.start_dll_update_at_~head#1.offset_37| Int)) (or (forall ((v_ArrVal_965 Int)) (<= 0 (select (store .cse0 |v_ULTIMATE.start_dll_update_at_~head#1.offset_37| v_ArrVal_965) .cse1))) (< |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_37|))) (forall ((|v_ULTIMATE.start_dll_update_at_~head#1.offset_37| Int)) (or (forall ((v_ArrVal_965 Int) (v_ArrVal_964 Int)) (<= (+ (select (store .cse0 |v_ULTIMATE.start_dll_update_at_~head#1.offset_37| v_ArrVal_965) .cse1) 4) (select |c_#length| (select (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_37| v_ArrVal_964) .cse1)))) (< |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_37|))))) is different from false [2022-11-03 02:34:31,126 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:34:31,127 INFO L390 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 64 treesize of output 68 [2022-11-03 02:34:31,223 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 4))) (and (forall ((v_prenex_2 Int) (v_prenex_1 Int) (v_prenex_3 (Array Int Int))) (or (< |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| v_prenex_1) (< (select (store (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_prenex_3) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) v_prenex_1 v_prenex_2) .cse0) (+ |c_ULTIMATE.start_dll_create_~head~0#1.offset| 9)))) (forall ((|v_ULTIMATE.start_dll_update_at_~head#1.offset_37| Int) (v_ArrVal_965 Int) (v_ArrVal_961 (Array Int Int))) (or (<= 0 (select (store (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_961) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_37| v_ArrVal_965) .cse0)) (< |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_37|))) (forall ((v_prenex_1 Int) (v_ArrVal_962 (Array Int Int)) (v_ArrVal_964 Int)) (or (< |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| v_prenex_1) (= (select (store (select (store |c_#memory_$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_prenex_1 v_ArrVal_964) .cse0) |c_ULTIMATE.start_dll_create_~head~0#1.base|))))) is different from false [2022-11-03 02:34:31,280 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|)) (.cse1 (+ 8 |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|)) (.cse2 (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 4))) (and (forall ((v_ArrVal_960 Int) (v_prenex_2 Int) (v_prenex_1 Int) (v_prenex_3 (Array Int Int))) (or (< |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| v_prenex_1) (< (select (store (select (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store .cse0 .cse1 v_ArrVal_960)) |c_ULTIMATE.start_dll_create_~head~0#1.base| v_prenex_3) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) v_prenex_1 v_prenex_2) .cse2) (+ |c_ULTIMATE.start_dll_create_~head~0#1.offset| 9)))) (forall ((v_prenex_1 Int) (v_ArrVal_959 Int) (v_ArrVal_962 (Array Int Int)) (v_ArrVal_964 Int)) (or (< |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| v_prenex_1) (= (select (store (select (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) .cse1 v_ArrVal_959)) |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_962) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) v_prenex_1 v_ArrVal_964) .cse2) |c_ULTIMATE.start_dll_create_~head~0#1.base|))) (forall ((v_ArrVal_960 Int) (|v_ULTIMATE.start_dll_update_at_~head#1.offset_37| Int) (v_ArrVal_965 Int) (v_ArrVal_961 (Array Int Int))) (or (<= 0 (select (store (select (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store .cse0 .cse1 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_37| v_ArrVal_965) .cse2)) (< |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_37|))))) is different from false [2022-11-03 02:34:31,298 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:34:31,298 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 32 treesize of output 38 [2022-11-03 02:34:31,303 INFO L390 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 46 treesize of output 42 [2022-11-03 02:34:31,307 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:34:31,310 INFO L390 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 13 treesize of output 9 [2022-11-03 02:34:31,312 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:34:31,314 INFO L390 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 15 [2022-11-03 02:34:31,325 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:34:31,326 INFO L390 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 30 treesize of output 36 [2022-11-03 02:34:31,329 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:34:31,331 INFO L390 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 19 [2022-11-03 02:34:31,333 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:34:31,335 INFO L390 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 16 treesize of output 8 [2022-11-03 02:34:31,345 INFO L356 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-11-03 02:34:31,346 INFO L390 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 30 treesize of output 1 [2022-11-03 02:34:31,519 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 5 not checked. [2022-11-03 02:34:31,520 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [353964788] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:34:31,520 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [937211118] [2022-11-03 02:34:31,522 INFO L159 IcfgInterpreter]: Started Sifa with 14 locations of interest [2022-11-03 02:34:31,522 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 02:34:31,522 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 02:34:31,523 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 02:34:31,523 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 02:34:31,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:31,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:31,552 INFO L390 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 [2022-11-03 02:34:31,576 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:34:31,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:31,585 INFO L390 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 [2022-11-03 02:34:31,596 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:34:31,614 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:34:31,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:31,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:31,625 INFO L390 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 [2022-11-03 02:34:31,642 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:34:31,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:31,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:31,666 INFO L390 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 [2022-11-03 02:34:31,680 INFO L390 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 [2022-11-03 02:34:31,694 INFO L390 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 [2022-11-03 02:34:31,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:31,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:31,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:31,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:31,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:31,745 INFO L390 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 [2022-11-03 02:34:31,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:31,779 INFO L390 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 [2022-11-03 02:34:31,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:31,793 INFO L390 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 [2022-11-03 02:34:31,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:31,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:31,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:31,809 INFO L390 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 [2022-11-03 02:34:31,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:31,850 INFO L390 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 [2022-11-03 02:34:31,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:31,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:31,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:31,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:31,870 INFO L390 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 [2022-11-03 02:34:31,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:31,886 INFO L390 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 [2022-11-03 02:34:31,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:31,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:31,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:31,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:31,915 INFO L390 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 [2022-11-03 02:34:31,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:31,930 INFO L390 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 [2022-11-03 02:34:31,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:31,948 INFO L390 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 [2022-11-03 02:34:31,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:31,991 INFO L390 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 [2022-11-03 02:34:32,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:32,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:32,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:32,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:32,012 INFO L390 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 [2022-11-03 02:34:32,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:32,030 INFO L390 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 [2022-11-03 02:34:32,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:32,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:32,313 INFO L356 Elim1Store]: treesize reduction 34, result has 41.4 percent of original size [2022-11-03 02:34:32,313 INFO L390 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 [2022-11-03 02:34:32,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:32,370 INFO L390 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 [2022-11-03 02:34:32,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:32,383 INFO L390 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 [2022-11-03 02:34:32,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:32,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:32,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:32,400 INFO L390 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 [2022-11-03 02:34:32,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:32,430 INFO L390 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 [2022-11-03 02:34:32,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:32,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:32,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:32,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:32,450 INFO L390 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 [2022-11-03 02:34:32,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:32,467 INFO L390 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 [2022-11-03 02:34:32,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:32,499 INFO L390 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 [2022-11-03 02:34:32,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:32,518 INFO L390 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 [2022-11-03 02:34:32,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:32,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:32,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:32,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:32,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:32,538 INFO L390 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 [2022-11-03 02:34:32,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:32,591 INFO L390 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 [2022-11-03 02:34:32,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:32,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:32,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:32,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:32,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:32,611 INFO L390 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 [2022-11-03 02:34:32,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:32,630 INFO L390 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 [2022-11-03 02:34:32,670 INFO L390 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 [2022-11-03 02:34:32,678 INFO L390 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 [2022-11-03 02:34:32,690 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:34:32,696 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:34:32,704 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:34:32,716 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:34:32,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:32,734 INFO L390 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 [2022-11-03 02:34:32,740 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:34:32,752 INFO L390 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 [2022-11-03 02:34:32,761 INFO L390 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 [2022-11-03 02:34:32,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:32,770 INFO L390 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 [2022-11-03 02:34:32,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:32,794 INFO L390 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 [2022-11-03 02:34:32,802 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:34:32,815 INFO L356 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-11-03 02:34:32,815 INFO L390 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 [2022-11-03 02:34:32,828 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:34:32,838 INFO L356 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-11-03 02:34:32,839 INFO L390 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 [2022-11-03 02:34:32,890 INFO L390 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 [2022-11-03 02:34:32,896 INFO L390 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 [2022-11-03 02:34:32,909 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:34:32,915 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:34:32,923 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:34:32,934 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:34:32,950 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:34:32,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:32,960 INFO L390 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 [2022-11-03 02:34:32,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:32,975 INFO L390 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 [2022-11-03 02:34:32,982 INFO L390 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 [2022-11-03 02:34:32,992 INFO L390 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 [2022-11-03 02:34:33,013 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:34:33,023 INFO L356 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-11-03 02:34:33,024 INFO L390 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 [2022-11-03 02:34:33,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:33,036 INFO L390 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 [2022-11-03 02:34:33,045 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:34:33,058 INFO L356 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-11-03 02:34:33,058 INFO L390 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 [2022-11-03 02:34:33,159 INFO L390 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 [2022-11-03 02:34:33,175 INFO L390 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 [2022-11-03 02:34:33,185 INFO L390 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 [2022-11-03 02:34:33,279 INFO L390 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 [2022-11-03 02:34:33,287 INFO L390 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 [2022-11-03 02:34:33,301 INFO L390 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 [2022-11-03 02:34:33,405 INFO L390 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 [2022-11-03 02:34:33,414 INFO L390 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 [2022-11-03 02:34:33,428 INFO L390 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 [2022-11-03 02:34:33,465 INFO L390 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 [2022-11-03 02:34:33,472 INFO L390 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 [2022-11-03 02:34:33,488 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:34:33,494 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:34:33,500 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:34:33,567 INFO L390 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 [2022-11-03 02:34:33,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:33,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:33,580 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:34:33,586 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 02:34:33,587 INFO L390 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 [2022-11-03 02:34:33,613 INFO L390 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 [2022-11-03 02:34:33,671 INFO L390 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 [2022-11-03 02:34:33,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:33,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:33,685 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:34:33,691 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 02:34:33,692 INFO L390 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 [2022-11-03 02:34:33,719 INFO L390 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 [2022-11-03 02:34:33,750 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 02:34:36,508 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|) (<= |ULTIMATE.start_dll_create_#res#1.offset| 0) (or (not (<= (+ |ULTIMATE.start_dll_update_at_~head#1.offset| 4) (select |#length| |ULTIMATE.start_dll_update_at_~head#1.base|))) (not (<= 0 |ULTIMATE.start_dll_update_at_~head#1.offset|))) (not (< 0 |ULTIMATE.start_dll_update_at_~index#1|)) (<= 0 |ULTIMATE.start_dll_update_at_#in~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|) (<= 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 [2022-11-03 02:34:36,508 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 02:34:36,508 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 02:34:36,508 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 13] total 33 [2022-11-03 02:34:36,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56918409] [2022-11-03 02:34:36,508 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 02:34:36,509 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-11-03 02:34:36,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:34:36,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-11-03 02:34:36,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=168, Invalid=1487, Unknown=5, NotChecked=410, Total=2070 [2022-11-03 02:34:36,510 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) [2022-11-03 02:34:39,135 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 4))) (let ((.cse1 (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) .cse0))) (and (<= 0 |c_ULTIMATE.start_dll_create_~head~0#1.offset|) (= |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 0) (forall ((v_prenex_2 Int) (v_prenex_1 Int) (v_prenex_3 (Array Int Int))) (or (< |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| v_prenex_1) (< (select (store (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_prenex_3) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) v_prenex_1 v_prenex_2) .cse0) (+ |c_ULTIMATE.start_dll_create_~head~0#1.offset| 9)))) (= (select |c_#valid| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) 1) (forall ((|v_ULTIMATE.start_dll_update_at_~head#1.offset_37| Int) (v_ArrVal_965 Int) (v_ArrVal_961 (Array Int Int))) (or (<= 0 (select (store (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_961) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_37| v_ArrVal_965) .cse0)) (< |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_37|))) (= (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) .cse0) |c_ULTIMATE.start_dll_create_~head~0#1.base|) (= .cse1 0) (forall ((v_prenex_1 Int) (v_ArrVal_962 (Array Int Int)) (v_ArrVal_964 Int)) (or (< |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| v_prenex_1) (= (select (store (select (store |c_#memory_$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_prenex_1 v_ArrVal_964) .cse0) |c_ULTIMATE.start_dll_create_~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) (not (= |c_ULTIMATE.start_dll_create_~new_head~0#1.base| |c_ULTIMATE.start_dll_create_~head~0#1.base|)) (= |c_ULTIMATE.start_dll_create_~head~0#1.offset| .cse1)))) is different from false [2022-11-03 02:34:40,112 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 4))) (let ((.cse1 (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) .cse0))) (and (<= 0 |c_ULTIMATE.start_dll_create_~head~0#1.offset|) (= |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 0) (forall ((v_prenex_2 Int) (v_prenex_1 Int) (v_prenex_3 (Array Int Int))) (or (< |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| v_prenex_1) (< (select (store (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_prenex_3) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) v_prenex_1 v_prenex_2) .cse0) (+ |c_ULTIMATE.start_dll_create_~head~0#1.offset| 9)))) (forall ((|v_ULTIMATE.start_dll_update_at_~head#1.offset_37| Int) (v_ArrVal_965 Int) (v_ArrVal_961 (Array Int Int))) (or (<= 0 (select (store (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_961) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_37| v_ArrVal_965) .cse0)) (< |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_37|))) (= (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) .cse0) |c_ULTIMATE.start_dll_create_~head~0#1.base|) (= .cse1 0) (forall ((v_prenex_1 Int) (v_ArrVal_962 (Array Int Int)) (v_ArrVal_964 Int)) (or (< |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| v_prenex_1) (= (select (store (select (store |c_#memory_$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_prenex_1 v_ArrVal_964) .cse0) |c_ULTIMATE.start_dll_create_~head~0#1.base|))) (= (select |c_#length| |c_ULTIMATE.start_dll_create_~head~0#1.base|) 12) (not (= |c_ULTIMATE.start_dll_create_~new_head~0#1.base| |c_ULTIMATE.start_dll_create_~head~0#1.base|)) (= |c_ULTIMATE.start_dll_create_~head~0#1.offset| .cse1)))) is different from false [2022-11-03 02:34:40,857 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse5 (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|)) (.cse4 (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 4))) (let ((.cse2 (select .cse5 .cse4)) (.cse3 (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|))) (let ((.cse0 (select .cse3 .cse4)) (.cse1 (select |c_#length| .cse2))) (and (<= 0 .cse0) (<= (+ .cse0 12) .cse1) (= |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 0) (not (= .cse2 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|)) (= .cse0 0) (forall ((|v_ULTIMATE.start_dll_update_at_~head#1.offset_37| Int)) (or (forall ((v_ArrVal_965 Int)) (<= 0 (select (store .cse3 |v_ULTIMATE.start_dll_update_at_~head#1.offset_37| v_ArrVal_965) .cse4))) (< |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_37|))) (forall ((|v_ULTIMATE.start_dll_update_at_~head#1.offset_37| Int)) (or (forall ((v_ArrVal_965 Int) (v_ArrVal_964 Int)) (<= (+ (select (store .cse3 |v_ULTIMATE.start_dll_update_at_~head#1.offset_37| v_ArrVal_965) .cse4) 4) (select |c_#length| (select (store .cse5 |v_ULTIMATE.start_dll_update_at_~head#1.offset_37| v_ArrVal_964) .cse4)))) (< |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_37|))) (= .cse1 12))))) is different from false [2022-11-03 02:34:41,597 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~head~0#1.base|)) (.cse2 (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base|)) (.cse1 (+ |c_ULTIMATE.start_dll_create_~head~0#1.offset| 4))) (let ((.cse3 (select .cse2 .cse1)) (.cse4 (select .cse0 .cse1))) (and (= |c_ULTIMATE.start_dll_create_~head~0#1.offset| 0) (forall ((|v_ULTIMATE.start_dll_update_at_~head#1.offset_37| Int)) (or (forall ((v_ArrVal_965 Int) (v_ArrVal_964 Int)) (<= (+ (select (store .cse0 |v_ULTIMATE.start_dll_update_at_~head#1.offset_37| v_ArrVal_965) .cse1) 4) (select |c_#length| (select (store .cse2 |v_ULTIMATE.start_dll_update_at_~head#1.offset_37| v_ArrVal_964) .cse1)))) (< |c_ULTIMATE.start_dll_create_~head~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_37|))) (not (= .cse3 |c_ULTIMATE.start_dll_create_~head~0#1.base|)) (<= (+ .cse4 12) (select |c_#length| .cse3)) (= (select |c_#length| (select .cse2 4)) 12) (= (select .cse0 4) 0) (forall ((|v_ULTIMATE.start_dll_update_at_~head#1.offset_37| Int)) (or (forall ((v_ArrVal_965 Int)) (<= 0 (select (store .cse0 |v_ULTIMATE.start_dll_update_at_~head#1.offset_37| v_ArrVal_965) .cse1))) (< |c_ULTIMATE.start_dll_create_~head~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_37|))) (<= 0 .cse4)))) is different from false [2022-11-03 02:34:42,347 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse4 (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~s~0#1.base|)) (.cse0 (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~s~0#1.base|)) (.cse1 (+ |c_ULTIMATE.start_main_~s~0#1.offset| 4))) (let ((.cse2 (select .cse0 .cse1)) (.cse3 (select .cse4 .cse1))) (and (forall ((|v_ULTIMATE.start_dll_update_at_~head#1.offset_37| Int)) (or (forall ((v_ArrVal_965 Int)) (<= 0 (select (store .cse0 |v_ULTIMATE.start_dll_update_at_~head#1.offset_37| v_ArrVal_965) .cse1))) (< |c_ULTIMATE.start_main_~s~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_37|))) (<= (+ 12 .cse2) (select |c_#length| .cse3)) (forall ((|v_ULTIMATE.start_dll_update_at_~head#1.offset_37| Int)) (or (forall ((v_ArrVal_965 Int) (v_ArrVal_964 Int)) (<= (+ (select (store .cse0 |v_ULTIMATE.start_dll_update_at_~head#1.offset_37| v_ArrVal_965) .cse1) 4) (select |c_#length| (select (store .cse4 |v_ULTIMATE.start_dll_update_at_~head#1.offset_37| v_ArrVal_964) .cse1)))) (< |c_ULTIMATE.start_main_~s~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_37|))) (= 12 (select |c_#length| (select .cse4 4))) (= (select .cse0 4) 0) (<= 0 .cse2) (= |c_ULTIMATE.start_main_~s~0#1.offset| 0) (not (= |c_ULTIMATE.start_main_~s~0#1.base| .cse3))))) is different from false [2022-11-03 02:34:43,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:34:43,426 INFO L93 Difference]: Finished difference Result 226 states and 281 transitions. [2022-11-03 02:34:43,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-03 02:34:43,426 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 [2022-11-03 02:34:43,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:34:43,427 INFO L225 Difference]: With dead ends: 226 [2022-11-03 02:34:43,427 INFO L226 Difference]: Without dead ends: 226 [2022-11-03 02:34:43,428 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 45 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 10 IntricatePredicates, 0 DeprecatedPredicates, 594 ImplicationChecksByTransitivity, 15.6s TimeCoverageRelationStatistics Valid=262, Invalid=2218, Unknown=10, NotChecked=1050, Total=3540 [2022-11-03 02:34:43,429 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 536 mSDsluCounter, 809 mSDsCounter, 0 mSdLazyCounter, 993 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 536 SdHoareTripleChecker+Valid, 623 SdHoareTripleChecker+Invalid, 1855 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 993 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 835 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-03 02:34:43,430 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [536 Valid, 623 Invalid, 1855 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 993 Invalid, 0 Unknown, 835 Unchecked, 0.8s Time] [2022-11-03 02:34:43,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2022-11-03 02:34:43,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 99. [2022-11-03 02:34:43,436 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) [2022-11-03 02:34:43,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 126 transitions. [2022-11-03 02:34:43,436 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 126 transitions. Word has length 25 [2022-11-03 02:34:43,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:34:43,437 INFO L495 AbstractCegarLoop]: Abstraction has 99 states and 126 transitions. [2022-11-03 02:34:43,437 INFO L496 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) [2022-11-03 02:34:43,437 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 126 transitions. [2022-11-03 02:34:43,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-03 02:34:43,438 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:34:43,438 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:34:43,470 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_654ffbce-fddd-43d7-97a9-56350347d9c0/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-03 02:34:43,650 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_654ffbce-fddd-43d7-97a9-56350347d9c0/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-11-03 02:34:43,651 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 20 more)] === [2022-11-03 02:34:43,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:34:43,651 INFO L85 PathProgramCache]: Analyzing trace with hash -2080372366, now seen corresponding path program 2 times [2022-11-03 02:34:43,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:34:43,651 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759721891] [2022-11-03 02:34:43,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:34:43,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:34:43,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:34:43,810 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 1 proven. 11 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-03 02:34:43,810 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:34:43,811 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759721891] [2022-11-03 02:34:43,811 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [759721891] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:34:43,811 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [37538882] [2022-11-03 02:34:43,811 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-03 02:34:43,811 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:34:43,812 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_654ffbce-fddd-43d7-97a9-56350347d9c0/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:34:43,813 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_654ffbce-fddd-43d7-97a9-56350347d9c0/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:34:43,830 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_654ffbce-fddd-43d7-97a9-56350347d9c0/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-03 02:34:43,975 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-03 02:34:43,975 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-03 02:34:43,976 INFO L263 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 25 conjunts are in the unsatisfiable core [2022-11-03 02:34:43,979 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:34:44,098 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-03 02:34:44,098 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:34:44,098 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [37538882] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:34:44,098 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-03 02:34:44,098 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 12 [2022-11-03 02:34:44,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857883082] [2022-11-03 02:34:44,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:34:44,099 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-03 02:34:44,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:34:44,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-03 02:34:44,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2022-11-03 02:34:44,099 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) [2022-11-03 02:34:44,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:34:44,261 INFO L93 Difference]: Finished difference Result 116 states and 143 transitions. [2022-11-03 02:34:44,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 02:34:44,261 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 [2022-11-03 02:34:44,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:34:44,262 INFO L225 Difference]: With dead ends: 116 [2022-11-03 02:34:44,262 INFO L226 Difference]: Without dead ends: 116 [2022-11-03 02:34:44,262 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2022-11-03 02:34:44,263 INFO L413 NwaCegarLoop]: 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 [2022-11-03 02:34:44,263 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [235 Valid, 37 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:34:44,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2022-11-03 02:34:44,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 99. [2022-11-03 02:34:44,265 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) [2022-11-03 02:34:44,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 123 transitions. [2022-11-03 02:34:44,266 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 123 transitions. Word has length 27 [2022-11-03 02:34:44,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:34:44,266 INFO L495 AbstractCegarLoop]: Abstraction has 99 states and 123 transitions. [2022-11-03 02:34:44,266 INFO L496 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) [2022-11-03 02:34:44,266 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 123 transitions. [2022-11-03 02:34:44,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-03 02:34:44,267 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:34:44,267 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:34:44,307 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_654ffbce-fddd-43d7-97a9-56350347d9c0/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-03 02:34:44,486 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_654ffbce-fddd-43d7-97a9-56350347d9c0/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-11-03 02:34:44,486 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 20 more)] === [2022-11-03 02:34:44,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:34:44,487 INFO L85 PathProgramCache]: Analyzing trace with hash -2077997369, now seen corresponding path program 1 times [2022-11-03 02:34:44,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:34:44,487 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057742032] [2022-11-03 02:34:44,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:34:44,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:34:44,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:34:44,664 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 1 proven. 11 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-03 02:34:44,664 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:34:44,664 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2057742032] [2022-11-03 02:34:44,664 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2057742032] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:34:44,665 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [521540679] [2022-11-03 02:34:44,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:34:44,665 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:34:44,665 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_654ffbce-fddd-43d7-97a9-56350347d9c0/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:34:44,666 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_654ffbce-fddd-43d7-97a9-56350347d9c0/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:34:44,678 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_654ffbce-fddd-43d7-97a9-56350347d9c0/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-03 02:34:44,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:34:44,845 INFO L263 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-03 02:34:44,848 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:34:44,878 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-03 02:34:44,879 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:34:44,908 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-03 02:34:44,909 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [521540679] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:34:44,909 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [308649980] [2022-11-03 02:34:44,912 INFO L159 IcfgInterpreter]: Started Sifa with 18 locations of interest [2022-11-03 02:34:44,912 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 02:34:44,912 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 02:34:44,912 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 02:34:44,913 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 02:34:44,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:44,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:44,937 INFO L390 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 [2022-11-03 02:34:44,958 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:34:44,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:44,967 INFO L390 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 [2022-11-03 02:34:44,975 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:34:44,997 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:34:45,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:45,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:45,006 INFO L390 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 [2022-11-03 02:34:45,018 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:34:45,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:45,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:45,037 INFO L390 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 [2022-11-03 02:34:45,046 INFO L390 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 [2022-11-03 02:34:45,057 INFO L390 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 [2022-11-03 02:34:45,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:45,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:45,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:45,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:45,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:45,110 INFO L390 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 [2022-11-03 02:34:45,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:45,149 INFO L390 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 [2022-11-03 02:34:45,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:45,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:45,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:45,162 INFO L390 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 [2022-11-03 02:34:45,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:45,178 INFO L390 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 [2022-11-03 02:34:45,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:45,218 INFO L390 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 [2022-11-03 02:34:45,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:45,231 INFO L390 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 [2022-11-03 02:34:45,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:45,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:45,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:45,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:45,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:45,249 INFO L390 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 [2022-11-03 02:34:45,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:45,282 INFO L390 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 [2022-11-03 02:34:45,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:45,294 INFO L390 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 [2022-11-03 02:34:45,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:45,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:45,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:45,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:45,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:45,317 INFO L390 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 [2022-11-03 02:34:45,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:45,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:45,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:45,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:45,367 INFO L390 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 [2022-11-03 02:34:45,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:45,383 INFO L390 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 [2022-11-03 02:34:45,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:45,398 INFO L390 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 [2022-11-03 02:34:45,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:45,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:45,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:45,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:45,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:45,632 INFO L390 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 [2022-11-03 02:34:45,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:45,671 INFO L390 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 [2022-11-03 02:34:45,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:45,685 INFO L390 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 [2022-11-03 02:34:45,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:45,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:45,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:45,699 INFO L390 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 [2022-11-03 02:34:45,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:45,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:45,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:45,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:45,734 INFO L390 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 [2022-11-03 02:34:45,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:45,747 INFO L390 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 [2022-11-03 02:34:45,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:45,763 INFO L390 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 [2022-11-03 02:34:45,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:45,790 INFO L390 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 [2022-11-03 02:34:45,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:45,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:45,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:45,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:45,808 INFO L390 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 [2022-11-03 02:34:45,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:45,822 INFO L390 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 [2022-11-03 02:34:45,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:45,864 INFO L390 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 [2022-11-03 02:34:45,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:45,883 INFO L390 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 [2022-11-03 02:34:45,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:45,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:45,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:45,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:45,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:45,905 INFO L390 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 [2022-11-03 02:34:46,158 INFO L390 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 [2022-11-03 02:34:46,169 INFO L390 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 [2022-11-03 02:34:46,180 INFO L390 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 [2022-11-03 02:34:46,242 INFO L390 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 [2022-11-03 02:34:46,251 INFO L390 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 [2022-11-03 02:34:46,259 INFO L390 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 [2022-11-03 02:34:46,330 INFO L390 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 [2022-11-03 02:34:46,341 INFO L390 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 [2022-11-03 02:34:46,351 INFO L390 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 [2022-11-03 02:34:46,453 INFO L390 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 [2022-11-03 02:34:46,460 INFO L390 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 [2022-11-03 02:34:46,499 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:34:46,505 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:34:46,512 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:34:46,544 INFO L390 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 [2022-11-03 02:34:46,551 INFO L390 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 [2022-11-03 02:34:46,558 INFO L390 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 [2022-11-03 02:34:46,582 INFO L390 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 [2022-11-03 02:34:46,596 INFO L390 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 [2022-11-03 02:34:46,606 INFO L390 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 [2022-11-03 02:34:46,617 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 02:34:49,491 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|) (= |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|) (= 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 [2022-11-03 02:34:49,492 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 02:34:49,492 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 02:34:49,492 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 10 [2022-11-03 02:34:49,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558781438] [2022-11-03 02:34:49,492 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 02:34:49,493 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-03 02:34:49,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:34:49,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-03 02:34:49,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=443, Unknown=0, NotChecked=0, Total=552 [2022-11-03 02:34:49,494 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) [2022-11-03 02:34:49,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:34:49,707 INFO L93 Difference]: Finished difference Result 96 states and 112 transitions. [2022-11-03 02:34:49,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-03 02:34:49,707 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 [2022-11-03 02:34:49,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:34:49,708 INFO L225 Difference]: With dead ends: 96 [2022-11-03 02:34:49,708 INFO L226 Difference]: Without dead ends: 96 [2022-11-03 02:34:49,708 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 65 SyntacticMatches, 4 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 227 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=159, Invalid=711, Unknown=0, NotChecked=0, Total=870 [2022-11-03 02:34:49,709 INFO L413 NwaCegarLoop]: 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 [2022-11-03 02:34:49,709 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 166 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:34:49,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2022-11-03 02:34:49,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 93. [2022-11-03 02:34:49,711 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) [2022-11-03 02:34:49,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 110 transitions. [2022-11-03 02:34:49,712 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 110 transitions. Word has length 29 [2022-11-03 02:34:49,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:34:49,712 INFO L495 AbstractCegarLoop]: Abstraction has 93 states and 110 transitions. [2022-11-03 02:34:49,712 INFO L496 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) [2022-11-03 02:34:49,712 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 110 transitions. [2022-11-03 02:34:49,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-11-03 02:34:49,712 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:34:49,713 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-11-03 02:34:49,756 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_654ffbce-fddd-43d7-97a9-56350347d9c0/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-03 02:34:49,934 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_654ffbce-fddd-43d7-97a9-56350347d9c0/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:34:49,934 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 20 more)] === [2022-11-03 02:34:49,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:34:49,935 INFO L85 PathProgramCache]: Analyzing trace with hash 1742752375, now seen corresponding path program 2 times [2022-11-03 02:34:49,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:34:49,935 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467975357] [2022-11-03 02:34:49,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:34:49,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:34:49,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:34:50,095 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 9 proven. 13 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-03 02:34:50,096 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:34:50,096 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467975357] [2022-11-03 02:34:50,096 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [467975357] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:34:50,096 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1595893743] [2022-11-03 02:34:50,096 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-03 02:34:50,096 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:34:50,097 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_654ffbce-fddd-43d7-97a9-56350347d9c0/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:34:50,098 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_654ffbce-fddd-43d7-97a9-56350347d9c0/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:34:50,107 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_654ffbce-fddd-43d7-97a9-56350347d9c0/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-03 02:34:50,279 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-03 02:34:50,279 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-03 02:34:50,280 INFO L263 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-03 02:34:50,282 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:34:50,338 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-03 02:34:50,338 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:34:50,397 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-03 02:34:50,397 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1595893743] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:34:50,397 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1831709365] [2022-11-03 02:34:50,401 INFO L159 IcfgInterpreter]: Started Sifa with 14 locations of interest [2022-11-03 02:34:50,401 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 02:34:50,401 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 02:34:50,401 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 02:34:50,402 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 02:34:50,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:50,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:50,426 INFO L390 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 [2022-11-03 02:34:50,453 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:34:50,463 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:34:50,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:50,472 INFO L390 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 [2022-11-03 02:34:50,490 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:34:50,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:50,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:50,503 INFO L390 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 [2022-11-03 02:34:50,513 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:34:50,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:50,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:50,537 INFO L390 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 [2022-11-03 02:34:50,546 INFO L390 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 [2022-11-03 02:34:50,557 INFO L390 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 [2022-11-03 02:34:50,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:50,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:50,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:50,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:50,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:50,610 INFO L390 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 [2022-11-03 02:34:50,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:50,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:50,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:50,660 INFO L390 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 [2022-11-03 02:34:50,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:50,679 INFO L390 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 [2022-11-03 02:34:50,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:50,695 INFO L390 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 [2022-11-03 02:34:50,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:50,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:50,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:50,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:50,744 INFO L390 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 [2022-11-03 02:34:50,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:50,760 INFO L390 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 [2022-11-03 02:34:50,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:50,777 INFO L390 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 [2022-11-03 02:34:50,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:50,811 INFO L390 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 [2022-11-03 02:34:50,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:50,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:50,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:50,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:50,830 INFO L390 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 [2022-11-03 02:34:50,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:50,849 INFO L390 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 [2022-11-03 02:34:50,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:50,893 INFO L390 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 [2022-11-03 02:34:50,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:50,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:50,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:50,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:50,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:50,917 INFO L390 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 [2022-11-03 02:34:50,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:50,937 INFO L390 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 [2022-11-03 02:34:51,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:51,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:51,221 INFO L356 Elim1Store]: treesize reduction 34, result has 41.4 percent of original size [2022-11-03 02:34:51,222 INFO L390 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 [2022-11-03 02:34:51,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:51,280 INFO L390 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 [2022-11-03 02:34:51,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:51,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:51,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:51,301 INFO L390 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 [2022-11-03 02:34:51,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:51,316 INFO L390 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 [2022-11-03 02:34:51,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:51,350 INFO L390 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 [2022-11-03 02:34:51,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:51,366 INFO L390 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 [2022-11-03 02:34:51,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:51,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:51,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:51,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:51,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:51,386 INFO L390 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 [2022-11-03 02:34:51,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:51,425 INFO L390 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 [2022-11-03 02:34:51,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:51,444 INFO L390 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 [2022-11-03 02:34:51,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:51,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:51,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:51,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:51,467 INFO L390 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 [2022-11-03 02:34:51,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:51,515 INFO L390 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 [2022-11-03 02:34:51,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:51,530 INFO L390 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 [2022-11-03 02:34:51,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:51,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:51,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:51,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:51,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:51,553 INFO L390 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 [2022-11-03 02:34:51,594 INFO L390 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 [2022-11-03 02:34:51,601 INFO L390 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 [2022-11-03 02:34:51,615 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:34:51,629 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:34:51,640 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:34:51,652 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:34:51,659 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:34:51,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:51,670 INFO L390 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 [2022-11-03 02:34:51,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:51,691 INFO L390 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 [2022-11-03 02:34:51,699 INFO L390 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 [2022-11-03 02:34:51,707 INFO L390 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 [2022-11-03 02:34:51,735 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:34:51,746 INFO L356 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-11-03 02:34:51,747 INFO L390 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 [2022-11-03 02:34:51,758 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:34:51,772 INFO L356 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-11-03 02:34:51,773 INFO L390 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 [2022-11-03 02:34:51,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:51,788 INFO L390 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 [2022-11-03 02:34:51,843 INFO L390 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 [2022-11-03 02:34:51,849 INFO L390 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 [2022-11-03 02:34:51,864 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:34:51,870 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:34:51,877 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:34:51,894 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:34:51,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:51,902 INFO L390 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 [2022-11-03 02:34:51,910 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:34:51,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:51,926 INFO L390 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 [2022-11-03 02:34:51,933 INFO L390 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 [2022-11-03 02:34:51,943 INFO L390 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 [2022-11-03 02:34:51,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:51,970 INFO L390 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 [2022-11-03 02:34:51,980 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:34:51,991 INFO L356 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-11-03 02:34:51,992 INFO L390 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 [2022-11-03 02:34:52,003 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:34:52,018 INFO L356 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-11-03 02:34:52,018 INFO L390 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 [2022-11-03 02:34:52,123 INFO L390 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 [2022-11-03 02:34:52,133 INFO L390 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 [2022-11-03 02:34:52,149 INFO L390 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 [2022-11-03 02:34:52,258 INFO L390 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 [2022-11-03 02:34:52,271 INFO L390 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 [2022-11-03 02:34:52,283 INFO L390 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 [2022-11-03 02:34:52,405 INFO L390 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 [2022-11-03 02:34:52,414 INFO L390 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 [2022-11-03 02:34:52,428 INFO L390 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 [2022-11-03 02:34:52,457 INFO L390 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 [2022-11-03 02:34:52,465 INFO L390 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 [2022-11-03 02:34:52,480 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:34:52,486 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:34:52,493 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:34:52,567 INFO L390 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 [2022-11-03 02:34:52,581 INFO L390 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 [2022-11-03 02:34:52,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:52,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:52,599 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:34:52,607 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 02:34:52,608 INFO L390 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 [2022-11-03 02:34:52,690 INFO L390 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 [2022-11-03 02:34:52,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:52,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:52,711 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:34:52,718 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 02:34:52,719 INFO L390 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 [2022-11-03 02:34:52,751 INFO L390 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 [2022-11-03 02:34:52,785 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 02:34:55,006 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 [2022-11-03 02:34:55,007 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 02:34:55,007 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 02:34:55,007 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4, 4] total 8 [2022-11-03 02:34:55,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019913053] [2022-11-03 02:34:55,007 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 02:34:55,008 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-03 02:34:55,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:34:55,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-03 02:34:55,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=329, Unknown=0, NotChecked=0, Total=420 [2022-11-03 02:34:55,009 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) [2022-11-03 02:34:55,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:34:55,131 INFO L93 Difference]: Finished difference Result 85 states and 94 transitions. [2022-11-03 02:34:55,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-03 02:34:55,131 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 [2022-11-03 02:34:55,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:34:55,132 INFO L225 Difference]: With dead ends: 85 [2022-11-03 02:34:55,132 INFO L226 Difference]: Without dead ends: 85 [2022-11-03 02:34:55,133 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 72 SyntacticMatches, 3 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=118, Invalid=482, Unknown=0, NotChecked=0, Total=600 [2022-11-03 02:34:55,133 INFO L413 NwaCegarLoop]: 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 [2022-11-03 02:34:55,134 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 120 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:34:55,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2022-11-03 02:34:55,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 81. [2022-11-03 02:34:55,136 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) [2022-11-03 02:34:55,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 91 transitions. [2022-11-03 02:34:55,137 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 91 transitions. Word has length 30 [2022-11-03 02:34:55,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:34:55,138 INFO L495 AbstractCegarLoop]: Abstraction has 81 states and 91 transitions. [2022-11-03 02:34:55,138 INFO L496 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) [2022-11-03 02:34:55,138 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 91 transitions. [2022-11-03 02:34:55,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-03 02:34:55,139 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:34:55,139 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:34:55,170 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_654ffbce-fddd-43d7-97a9-56350347d9c0/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-03 02:34:55,354 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_654ffbce-fddd-43d7-97a9-56350347d9c0/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:34:55,355 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 20 more)] === [2022-11-03 02:34:55,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:34:55,355 INFO L85 PathProgramCache]: Analyzing trace with hash 1650502283, now seen corresponding path program 1 times [2022-11-03 02:34:55,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:34:55,356 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509537181] [2022-11-03 02:34:55,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:34:55,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:34:55,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:34:56,621 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:34:56,621 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:34:56,621 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1509537181] [2022-11-03 02:34:56,621 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1509537181] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:34:56,622 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1005229659] [2022-11-03 02:34:56,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:34:56,622 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:34:56,622 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_654ffbce-fddd-43d7-97a9-56350347d9c0/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:34:56,627 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_654ffbce-fddd-43d7-97a9-56350347d9c0/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:34:56,650 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_654ffbce-fddd-43d7-97a9-56350347d9c0/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-03 02:34:56,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:34:56,826 INFO L263 TraceCheckSpWp]: Trace formula consists of 324 conjuncts, 82 conjunts are in the unsatisfiable core [2022-11-03 02:34:56,832 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:34:56,856 INFO L390 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 [2022-11-03 02:34:56,939 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-03 02:34:56,940 INFO L390 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 [2022-11-03 02:34:56,994 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:34:57,044 INFO L390 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 [2022-11-03 02:34:57,074 INFO L356 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-03 02:34:57,074 INFO L390 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 [2022-11-03 02:34:57,272 INFO L390 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 [2022-11-03 02:34:57,277 INFO L390 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 [2022-11-03 02:34:57,405 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:34:57,406 INFO L390 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 [2022-11-03 02:34:57,462 INFO L390 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 [2022-11-03 02:34:57,602 INFO L390 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 [2022-11-03 02:34:57,636 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:34:57,636 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:34:57,734 WARN L833 $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 [2022-11-03 02:34:57,748 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_update_at_~head#1.base|) (+ |c_ULTIMATE.start_dll_update_at_~head#1.offset| 4)))) (and (forall ((v_ArrVal_1443 (Array Int Int))) (<= (select (select (store |c_#memory_int| .cse0 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| .cse0 v_ArrVal_1443) |c_ULTIMATE.start_main_~s~0#1.base|) |c_ULTIMATE.start_main_~s~0#1.offset|))))) is different from false [2022-11-03 02:34:57,769 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~s~0#1.base|) (+ |c_ULTIMATE.start_main_~s~0#1.offset| 4)))) (and (forall ((v_ArrVal_1443 (Array Int Int))) (<= |c_ULTIMATE.start_main_~len~0#1| (select (select (store |c_#memory_int| .cse0 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| .cse0 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 [2022-11-03 02:34:57,777 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:34:57,777 INFO L390 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 [2022-11-03 02:34:57,786 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:34:57,787 INFO L390 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 [2022-11-03 02:34:57,796 INFO L390 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 [2022-11-03 02:34:57,822 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:34:57,823 INFO L390 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 [2022-11-03 02:34:57,827 INFO L390 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 [2022-11-03 02:34:57,832 INFO L390 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 [2022-11-03 02:34:58,014 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1437 (Array Int Int))) (not (= (select (select (store |c_#memory_$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| 4)) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|))) is different from false [2022-11-03 02:34:58,022 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1437 (Array Int Int)) (v_ArrVal_1436 Int)) (not (= (select (select (store (store |c_#memory_$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|) (+ 8 |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|) 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| 4)) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|))) is different from false [2022-11-03 02:34:58,033 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:34:58,034 INFO L390 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 28 treesize of output 34 [2022-11-03 02:34:58,037 INFO L390 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 27 [2022-11-03 02:34:58,042 INFO L390 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 [2022-11-03 02:34:58,135 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 8 not checked. [2022-11-03 02:34:58,136 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1005229659] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:34:58,136 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [266233207] [2022-11-03 02:34:58,138 INFO L159 IcfgInterpreter]: Started Sifa with 19 locations of interest [2022-11-03 02:34:58,138 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 02:34:58,138 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 02:34:58,139 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 02:34:58,139 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 02:34:58,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:58,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:58,176 INFO L390 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 [2022-11-03 02:34:58,195 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:34:58,201 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:34:58,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:58,212 INFO L390 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 [2022-11-03 02:34:58,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:58,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:58,236 INFO L390 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 [2022-11-03 02:34:58,245 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:34:58,257 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:34:58,275 INFO L390 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 [2022-11-03 02:34:58,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:58,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:58,288 INFO L390 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 [2022-11-03 02:34:58,298 INFO L390 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 [2022-11-03 02:34:58,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:58,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:58,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:58,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:58,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:58,349 INFO L390 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 [2022-11-03 02:34:58,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:58,387 INFO L390 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 [2022-11-03 02:34:58,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:58,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:58,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:58,404 INFO L390 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 [2022-11-03 02:34:58,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:58,419 INFO L390 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 [2022-11-03 02:34:58,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:58,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:58,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:58,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:58,449 INFO L390 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 [2022-11-03 02:34:58,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:58,463 INFO L390 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 [2022-11-03 02:34:58,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:58,483 INFO L390 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 [2022-11-03 02:34:58,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:58,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:58,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:58,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:58,516 INFO L390 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 [2022-11-03 02:34:58,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:58,531 INFO L390 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 [2022-11-03 02:34:58,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:58,547 INFO L390 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 [2022-11-03 02:34:58,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:58,591 INFO L390 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 [2022-11-03 02:34:58,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:58,607 INFO L390 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 [2022-11-03 02:34:58,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:58,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:58,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:58,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:58,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:58,633 INFO L390 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 [2022-11-03 02:34:58,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:58,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:58,887 INFO L356 Elim1Store]: treesize reduction 34, result has 41.4 percent of original size [2022-11-03 02:34:58,887 INFO L390 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 [2022-11-03 02:34:58,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:58,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:58,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:58,931 INFO L390 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 [2022-11-03 02:34:58,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:58,947 INFO L390 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 [2022-11-03 02:34:58,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:58,963 INFO L390 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 [2022-11-03 02:34:58,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:58,987 INFO L390 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 [2022-11-03 02:34:59,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:59,003 INFO L390 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 [2022-11-03 02:34:59,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:59,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:59,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:59,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:59,021 INFO L390 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 [2022-11-03 02:34:59,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:59,057 INFO L390 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 [2022-11-03 02:34:59,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:59,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:59,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:59,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:59,074 INFO L390 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 [2022-11-03 02:34:59,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:59,088 INFO L390 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 [2022-11-03 02:34:59,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:59,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:59,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:59,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:59,135 INFO L390 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 [2022-11-03 02:34:59,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:59,154 INFO L390 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 [2022-11-03 02:34:59,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:59,173 INFO L390 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 [2022-11-03 02:34:59,215 INFO L390 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 [2022-11-03 02:34:59,220 INFO L390 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 [2022-11-03 02:34:59,233 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:34:59,241 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:34:59,247 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:34:59,258 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:34:59,266 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:34:59,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:59,273 INFO L390 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 [2022-11-03 02:34:59,285 INFO L390 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 [2022-11-03 02:34:59,293 INFO L390 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 [2022-11-03 02:34:59,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:59,302 INFO L390 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 [2022-11-03 02:34:59,324 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:34:59,334 INFO L356 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-11-03 02:34:59,334 INFO L390 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 [2022-11-03 02:34:59,350 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:34:59,365 INFO L356 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-11-03 02:34:59,365 INFO L390 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 [2022-11-03 02:34:59,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:59,382 INFO L390 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 [2022-11-03 02:34:59,433 INFO L390 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 [2022-11-03 02:34:59,439 INFO L390 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 [2022-11-03 02:34:59,452 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:34:59,458 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:34:59,465 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:34:59,477 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:34:59,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:59,485 INFO L390 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 [2022-11-03 02:34:59,493 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:34:59,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:59,509 INFO L390 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 [2022-11-03 02:34:59,524 INFO L390 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 [2022-11-03 02:34:59,534 INFO L390 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 [2022-11-03 02:34:59,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:34:59,557 INFO L390 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 [2022-11-03 02:34:59,566 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:34:59,575 INFO L356 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-11-03 02:34:59,575 INFO L390 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 [2022-11-03 02:34:59,587 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:34:59,599 INFO L356 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-11-03 02:34:59,599 INFO L390 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 [2022-11-03 02:34:59,705 INFO L390 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 [2022-11-03 02:34:59,715 INFO L390 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 [2022-11-03 02:34:59,733 INFO L390 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 [2022-11-03 02:34:59,822 INFO L390 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 [2022-11-03 02:34:59,837 INFO L390 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 [2022-11-03 02:34:59,847 INFO L390 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 [2022-11-03 02:34:59,958 INFO L390 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 [2022-11-03 02:34:59,966 INFO L390 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 [2022-11-03 02:34:59,974 INFO L390 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 [2022-11-03 02:35:00,046 INFO L390 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 [2022-11-03 02:35:00,060 INFO L390 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 [2022-11-03 02:35:00,077 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:35:00,083 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:35:00,090 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:35:00,154 INFO L390 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 [2022-11-03 02:35:00,162 INFO L390 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 [2022-11-03 02:35:00,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:00,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:00,176 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:35:00,183 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 02:35:00,184 INFO L390 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 [2022-11-03 02:35:00,252 INFO L390 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 [2022-11-03 02:35:00,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:00,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:00,266 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:35:00,272 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 02:35:00,273 INFO L390 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 [2022-11-03 02:35:00,300 INFO L390 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 [2022-11-03 02:35:00,328 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 02:35:03,877 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 [2022-11-03 02:35:03,877 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 02:35:03,877 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 02:35:03,877 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 17, 18] total 47 [2022-11-03 02:35:03,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020177460] [2022-11-03 02:35:03,877 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 02:35:03,878 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2022-11-03 02:35:03,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:35:03,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2022-11-03 02:35:03,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=275, Invalid=2932, Unknown=5, NotChecked=570, Total=3782 [2022-11-03 02:35:03,880 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) [2022-11-03 02:35:05,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:35:05,192 INFO L93 Difference]: Finished difference Result 91 states and 101 transitions. [2022-11-03 02:35:05,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-03 02:35:05,193 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 [2022-11-03 02:35:05,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:35:05,194 INFO L225 Difference]: With dead ends: 91 [2022-11-03 02:35:05,194 INFO L226 Difference]: Without dead ends: 91 [2022-11-03 02:35:05,195 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 48 SyntacticMatches, 9 SemanticMatches, 75 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 1770 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=530, Invalid=4597, Unknown=5, NotChecked=720, Total=5852 [2022-11-03 02:35:05,196 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 153 mSDsluCounter, 358 mSDsCounter, 0 mSdLazyCounter, 635 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 322 SdHoareTripleChecker+Invalid, 1022 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 635 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 328 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-03 02:35:05,196 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 322 Invalid, 1022 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 635 Invalid, 0 Unknown, 328 Unchecked, 0.5s Time] [2022-11-03 02:35:05,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2022-11-03 02:35:05,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 81. [2022-11-03 02:35:05,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 69 states have (on average 1.3043478260869565) internal successors, (90), 80 states have internal predecessors, (90), 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) [2022-11-03 02:35:05,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 90 transitions. [2022-11-03 02:35:05,199 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 90 transitions. Word has length 31 [2022-11-03 02:35:05,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:35:05,199 INFO L495 AbstractCegarLoop]: Abstraction has 81 states and 90 transitions. [2022-11-03 02:35:05,199 INFO L496 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) [2022-11-03 02:35:05,199 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 90 transitions. [2022-11-03 02:35:05,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-03 02:35:05,200 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:35:05,200 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:35:05,238 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_654ffbce-fddd-43d7-97a9-56350347d9c0/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-11-03 02:35:05,410 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_654ffbce-fddd-43d7-97a9-56350347d9c0/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:35:05,410 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 20 more)] === [2022-11-03 02:35:05,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:35:05,411 INFO L85 PathProgramCache]: Analyzing trace with hash 588702923, now seen corresponding path program 2 times [2022-11-03 02:35:05,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:35:05,411 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068079474] [2022-11-03 02:35:05,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:35:05,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:35:05,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:35:05,483 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 18 proven. 5 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-03 02:35:05,483 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:35:05,483 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068079474] [2022-11-03 02:35:05,483 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2068079474] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:35:05,484 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [564409088] [2022-11-03 02:35:05,484 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-03 02:35:05,484 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:35:05,484 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_654ffbce-fddd-43d7-97a9-56350347d9c0/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:35:05,485 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_654ffbce-fddd-43d7-97a9-56350347d9c0/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:35:05,522 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_654ffbce-fddd-43d7-97a9-56350347d9c0/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-11-03 02:35:05,717 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-11-03 02:35:05,718 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-03 02:35:05,720 INFO L263 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 45 conjunts are in the unsatisfiable core [2022-11-03 02:35:05,724 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:35:05,765 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-03 02:35:05,765 INFO L390 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 [2022-11-03 02:35:05,820 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:35:05,847 INFO L390 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 [2022-11-03 02:35:06,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:06,006 INFO L390 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 [2022-11-03 02:35:06,050 INFO L390 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 [2022-11-03 02:35:06,074 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 16 proven. 9 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-03 02:35:06,074 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:35:08,915 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 16 proven. 9 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-03 02:35:08,915 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [564409088] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:35:08,915 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1021873130] [2022-11-03 02:35:08,918 INFO L159 IcfgInterpreter]: Started Sifa with 14 locations of interest [2022-11-03 02:35:08,918 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 02:35:08,919 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 02:35:08,919 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 02:35:08,919 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 02:35:08,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:08,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:08,945 INFO L390 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 [2022-11-03 02:35:08,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:08,971 INFO L390 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 [2022-11-03 02:35:08,981 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:35:08,994 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:35:09,011 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:35:09,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:09,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:09,029 INFO L390 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 [2022-11-03 02:35:09,041 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:35:09,058 INFO L390 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 [2022-11-03 02:35:09,068 INFO L390 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 [2022-11-03 02:35:09,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:09,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:09,082 INFO L390 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 [2022-11-03 02:35:09,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:09,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:09,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:09,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:09,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:09,150 INFO L390 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 [2022-11-03 02:35:09,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:09,190 INFO L390 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 [2022-11-03 02:35:09,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:09,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:09,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:09,206 INFO L390 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 [2022-11-03 02:35:09,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:09,224 INFO L390 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 [2022-11-03 02:35:09,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:09,251 INFO L390 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 [2022-11-03 02:35:09,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:09,263 INFO L390 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 [2022-11-03 02:35:09,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:09,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:09,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:09,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:09,288 INFO L390 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 [2022-11-03 02:35:09,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:09,332 INFO L390 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 [2022-11-03 02:35:09,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:09,345 INFO L390 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 [2022-11-03 02:35:09,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:09,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:09,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:09,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:09,365 INFO L390 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 [2022-11-03 02:35:09,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:09,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:09,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:09,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:09,416 INFO L390 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 [2022-11-03 02:35:09,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:09,436 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:35:09,437 INFO L390 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 [2022-11-03 02:35:09,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:09,455 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:35:09,456 INFO L390 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 [2022-11-03 02:35:09,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:09,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:09,756 INFO L356 Elim1Store]: treesize reduction 34, result has 41.4 percent of original size [2022-11-03 02:35:09,756 INFO L390 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 [2022-11-03 02:35:09,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:09,805 INFO L390 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 [2022-11-03 02:35:09,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:09,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:09,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:09,824 INFO L390 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 [2022-11-03 02:35:09,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:09,847 INFO L390 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 [2022-11-03 02:35:09,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:09,875 INFO L390 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 [2022-11-03 02:35:09,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:09,891 INFO L390 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 [2022-11-03 02:35:09,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:09,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:09,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:09,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:09,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:09,911 INFO L390 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 [2022-11-03 02:35:09,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:09,938 INFO L390 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 [2022-11-03 02:35:09,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:09,958 INFO L390 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 [2022-11-03 02:35:09,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:09,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:09,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:09,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:09,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:09,979 INFO L390 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 [2022-11-03 02:35:10,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:10,024 INFO L390 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 [2022-11-03 02:35:10,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:10,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:10,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:10,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:10,061 INFO L390 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 [2022-11-03 02:35:10,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:10,082 INFO L390 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 [2022-11-03 02:35:10,129 INFO L390 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 [2022-11-03 02:35:10,135 INFO L390 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 [2022-11-03 02:35:10,151 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:35:10,158 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:35:10,164 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:35:10,177 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:35:10,185 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:35:10,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:10,197 INFO L390 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 [2022-11-03 02:35:10,214 INFO L390 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 [2022-11-03 02:35:10,223 INFO L390 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 [2022-11-03 02:35:10,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:10,245 INFO L390 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 [2022-11-03 02:35:10,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:10,269 INFO L390 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 [2022-11-03 02:35:10,279 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:35:10,293 INFO L356 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-11-03 02:35:10,294 INFO L390 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 [2022-11-03 02:35:10,308 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:35:10,320 INFO L356 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-11-03 02:35:10,321 INFO L390 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 [2022-11-03 02:35:10,378 INFO L390 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 [2022-11-03 02:35:10,385 INFO L390 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 [2022-11-03 02:35:10,400 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:35:10,407 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:35:10,412 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:35:10,426 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:35:10,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:10,434 INFO L390 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 [2022-11-03 02:35:10,444 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:35:10,458 INFO L390 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 [2022-11-03 02:35:10,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:10,475 INFO L390 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 [2022-11-03 02:35:10,485 INFO L390 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 [2022-11-03 02:35:10,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:10,508 INFO L390 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 [2022-11-03 02:35:10,519 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:35:10,533 INFO L356 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-11-03 02:35:10,533 INFO L390 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 [2022-11-03 02:35:10,547 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:35:10,559 INFO L356 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-11-03 02:35:10,559 INFO L390 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 [2022-11-03 02:35:10,654 INFO L390 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 [2022-11-03 02:35:10,666 INFO L390 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 [2022-11-03 02:35:10,682 INFO L390 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 [2022-11-03 02:35:10,776 INFO L390 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 [2022-11-03 02:35:10,790 INFO L390 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 [2022-11-03 02:35:10,803 INFO L390 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 [2022-11-03 02:35:10,904 INFO L390 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 [2022-11-03 02:35:10,917 INFO L390 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 [2022-11-03 02:35:10,926 INFO L390 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 [2022-11-03 02:35:10,962 INFO L390 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 [2022-11-03 02:35:10,970 INFO L390 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 [2022-11-03 02:35:10,995 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:35:11,002 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:35:11,011 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:35:11,066 INFO L390 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 [2022-11-03 02:35:11,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:11,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:11,080 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:35:11,087 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 02:35:11,088 INFO L390 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 [2022-11-03 02:35:11,118 INFO L390 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 [2022-11-03 02:35:11,163 INFO L390 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 [2022-11-03 02:35:11,173 INFO L390 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 [2022-11-03 02:35:11,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:11,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:11,192 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:35:11,200 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 02:35:11,201 INFO L390 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 [2022-11-03 02:35:11,254 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 02:35:13,794 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '5499#(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) (not (< 0 |ULTIMATE.start_dll_update_at_~index#1|)) (<= 0 |ULTIMATE.start_dll_update_at_#in~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 [2022-11-03 02:35:13,794 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 02:35:13,794 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 02:35:13,794 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 11, 10] total 23 [2022-11-03 02:35:13,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098749279] [2022-11-03 02:35:13,794 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 02:35:13,795 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-11-03 02:35:13,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:35:13,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-11-03 02:35:13,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=158, Invalid=1032, Unknown=0, NotChecked=0, Total=1190 [2022-11-03 02:35:13,796 INFO L87 Difference]: Start difference. First operand 81 states and 90 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) [2022-11-03 02:35:14,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:35:14,410 INFO L93 Difference]: Finished difference Result 88 states and 92 transitions. [2022-11-03 02:35:14,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-03 02:35:14,415 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 [2022-11-03 02:35:14,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:35:14,415 INFO L225 Difference]: With dead ends: 88 [2022-11-03 02:35:14,415 INFO L226 Difference]: Without dead ends: 88 [2022-11-03 02:35:14,416 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 64 SyntacticMatches, 2 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 458 ImplicationChecksByTransitivity, 5.8s TimeCoverageRelationStatistics Valid=264, Invalid=1542, Unknown=0, NotChecked=0, Total=1806 [2022-11-03 02:35:14,417 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 56 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 436 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 491 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 436 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 39 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 02:35:14,417 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 206 Invalid, 491 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 436 Invalid, 0 Unknown, 39 Unchecked, 0.3s Time] [2022-11-03 02:35:14,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2022-11-03 02:35:14,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 75. [2022-11-03 02:35:14,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 64 states have (on average 1.265625) internal successors, (81), 74 states have internal predecessors, (81), 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) [2022-11-03 02:35:14,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 81 transitions. [2022-11-03 02:35:14,420 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 81 transitions. Word has length 32 [2022-11-03 02:35:14,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:35:14,420 INFO L495 AbstractCegarLoop]: Abstraction has 75 states and 81 transitions. [2022-11-03 02:35:14,420 INFO L496 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) [2022-11-03 02:35:14,420 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 81 transitions. [2022-11-03 02:35:14,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-03 02:35:14,421 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:35:14,421 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:35:14,452 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_654ffbce-fddd-43d7-97a9-56350347d9c0/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-11-03 02:35:14,634 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_654ffbce-fddd-43d7-97a9-56350347d9c0/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2022-11-03 02:35:14,635 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 20 more)] === [2022-11-03 02:35:14,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:35:14,635 INFO L85 PathProgramCache]: Analyzing trace with hash -1524755747, now seen corresponding path program 2 times [2022-11-03 02:35:14,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:35:14,635 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681156582] [2022-11-03 02:35:14,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:35:14,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:35:14,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:35:14,759 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 17 proven. 8 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-03 02:35:14,760 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:35:14,760 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681156582] [2022-11-03 02:35:14,760 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1681156582] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:35:14,760 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1011199133] [2022-11-03 02:35:14,760 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-03 02:35:14,761 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:35:14,761 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_654ffbce-fddd-43d7-97a9-56350347d9c0/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:35:14,763 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_654ffbce-fddd-43d7-97a9-56350347d9c0/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:35:14,765 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_654ffbce-fddd-43d7-97a9-56350347d9c0/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-11-03 02:35:15,035 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-11-03 02:35:15,035 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-03 02:35:15,038 INFO L263 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 64 conjunts are in the unsatisfiable core [2022-11-03 02:35:15,041 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:35:15,091 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-03 02:35:15,091 INFO L390 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 [2022-11-03 02:35:15,118 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:35:15,123 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:35:15,154 INFO L390 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 [2022-11-03 02:35:15,161 INFO L390 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 [2022-11-03 02:35:15,227 INFO L356 Elim1Store]: treesize reduction 43, result has 17.3 percent of original size [2022-11-03 02:35:15,227 INFO L390 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 [2022-11-03 02:35:15,234 INFO L390 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 [2022-11-03 02:35:15,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:15,476 INFO L390 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 [2022-11-03 02:35:15,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:15,499 INFO L356 Elim1Store]: treesize reduction 69, result has 17.9 percent of original size [2022-11-03 02:35:15,500 INFO L390 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 [2022-11-03 02:35:15,597 INFO L356 Elim1Store]: treesize reduction 19, result has 5.0 percent of original size [2022-11-03 02:35:15,597 INFO L390 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 [2022-11-03 02:35:15,602 INFO L390 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 [2022-11-03 02:35:15,634 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 16 proven. 10 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-03 02:35:15,634 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:35:17,853 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~s~0#1.base|)) (.cse1 (+ |c_ULTIMATE.start_main_~s~0#1.offset| 4))) (and (forall ((|v_ULTIMATE.start_dll_update_at_~head#1.offset_72| Int)) (or (< |c_ULTIMATE.start_main_~s~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_72|) (forall ((v_ArrVal_1765 Int)) (<= 0 (select (store .cse0 |v_ULTIMATE.start_dll_update_at_~head#1.offset_72| v_ArrVal_1765) .cse1))))) (forall ((|v_ULTIMATE.start_dll_update_at_~head#1.offset_72| Int)) (or (forall ((v_ArrVal_1763 Int) (v_ArrVal_1765 Int)) (<= (+ 4 (select (store .cse0 |v_ULTIMATE.start_dll_update_at_~head#1.offset_72| v_ArrVal_1765) .cse1)) (select |c_#length| (select (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~s~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_72| v_ArrVal_1763) .cse1)))) (< |c_ULTIMATE.start_main_~s~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_72|))))) is different from false [2022-11-03 02:35:19,871 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~head~0#1.base|)) (.cse1 (+ |c_ULTIMATE.start_dll_create_~head~0#1.offset| 4))) (and (forall ((|v_ULTIMATE.start_dll_update_at_~head#1.offset_72| Int)) (or (forall ((v_ArrVal_1763 Int) (v_ArrVal_1765 Int)) (<= (+ (select (store .cse0 |v_ULTIMATE.start_dll_update_at_~head#1.offset_72| v_ArrVal_1765) .cse1) 4) (select |c_#length| (select (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_72| v_ArrVal_1763) .cse1)))) (< |c_ULTIMATE.start_dll_create_~head~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_72|))) (forall ((|v_ULTIMATE.start_dll_update_at_~head#1.offset_72| Int)) (or (< |c_ULTIMATE.start_dll_create_~head~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_72|) (forall ((v_ArrVal_1765 Int)) (<= 0 (select (store .cse0 |v_ULTIMATE.start_dll_update_at_~head#1.offset_72| v_ArrVal_1765) .cse1))))))) is different from false [2022-11-03 02:35:21,888 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|)) (.cse1 (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 4))) (and (forall ((|v_ULTIMATE.start_dll_update_at_~head#1.offset_72| Int)) (or (forall ((v_ArrVal_1765 Int)) (<= 0 (select (store .cse0 |v_ULTIMATE.start_dll_update_at_~head#1.offset_72| v_ArrVal_1765) .cse1))) (< |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_72|))) (forall ((|v_ULTIMATE.start_dll_update_at_~head#1.offset_72| Int)) (or (forall ((v_ArrVal_1763 Int) (v_ArrVal_1765 Int)) (<= (+ (select (store .cse0 |v_ULTIMATE.start_dll_update_at_~head#1.offset_72| v_ArrVal_1765) .cse1) 4) (select |c_#length| (select (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_72| v_ArrVal_1763) .cse1)))) (< |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_72|))))) is different from false [2022-11-03 02:35:28,019 WARN L234 SmtUtils]: Spent 6.03s on a formula simplification that was a NOOP. DAG size: 52 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:35:28,133 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:35:28,134 INFO L390 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 161 treesize of output 218 [2022-11-03 02:35:30,375 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse3 (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|)) (.cse2 (+ |c_ULTIMATE.start_dll_create_~head~0#1.offset| 8)) (.cse8 (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|)) (.cse4 (+ 8 |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|)) (.cse5 (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 4))) (let ((.cse6 (+ |c_ULTIMATE.start_dll_create_~head~0#1.offset| 9)) (.cse0 (= |c_ULTIMATE.start_dll_create_~new_head~0#1.base| |c_ULTIMATE.start_dll_create_~head~0#1.base|)) (.cse14 (forall ((v_prenex_5 Int) (v_ArrVal_1763 Int) (v_ArrVal_1758 Int)) (let ((.cse21 (select (store (select (let ((.cse22 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store .cse8 .cse4 v_ArrVal_1758)))) (store .cse22 |c_ULTIMATE.start_dll_create_~head~0#1.base| (store (select .cse22 |c_ULTIMATE.start_dll_create_~head~0#1.base|) .cse2 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|))) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) v_prenex_5 v_ArrVal_1763) .cse5))) (or (= |c_ULTIMATE.start_dll_create_~new_head~0#1.base| .cse21) (< |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| v_prenex_5) (= .cse21 |c_ULTIMATE.start_dll_create_~head~0#1.base|))))) (.cse12 (+ 9 |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|)) (.cse10 (forall ((v_ArrVal_1759 Int) (|v_ULTIMATE.start_dll_update_at_~head#1.offset_72| Int) (v_ArrVal_1765 Int) (v_ArrVal_1757 Int)) (or (not (<= v_ArrVal_1759 |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|)) (<= 0 (select (store (select (let ((.cse20 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store .cse3 .cse4 v_ArrVal_1757)))) (store .cse20 |c_ULTIMATE.start_dll_create_~head~0#1.base| (store (select .cse20 |c_ULTIMATE.start_dll_create_~head~0#1.base|) .cse2 v_ArrVal_1759))) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_72| v_ArrVal_1765) .cse5)) (< |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_72|))))) (and (or .cse0 (and (forall ((v_prenex_6 Int) (v_prenex_7 Int) (v_prenex_4 Int) (v_prenex_5 Int) (v_ArrVal_1763 Int) (v_ArrVal_1758 Int)) (or (< (select (store (select (let ((.cse1 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store .cse3 .cse4 v_prenex_7)))) (store .cse1 |c_ULTIMATE.start_dll_create_~head~0#1.base| (store (select .cse1 |c_ULTIMATE.start_dll_create_~head~0#1.base|) .cse2 v_prenex_4))) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) v_prenex_5 v_prenex_6) .cse5) .cse6) (= |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (select (store (select (let ((.cse7 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store .cse8 .cse4 v_ArrVal_1758)))) (store .cse7 |c_ULTIMATE.start_dll_create_~head~0#1.base| (store (select .cse7 |c_ULTIMATE.start_dll_create_~head~0#1.base|) .cse2 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|))) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) v_prenex_5 v_ArrVal_1763) .cse5)) (< |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| v_prenex_5) (not (<= v_prenex_4 |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|)))) (or (forall ((v_prenex_5 Int) (v_ArrVal_1763 Int) (v_ArrVal_1758 Int)) (= |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (select (store (select (let ((.cse9 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store .cse8 .cse4 v_ArrVal_1758)))) (store .cse9 |c_ULTIMATE.start_dll_create_~head~0#1.base| (store (select .cse9 |c_ULTIMATE.start_dll_create_~head~0#1.base|) .cse2 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|))) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) v_prenex_5 v_ArrVal_1763) .cse5))) .cse10))) (forall ((v_prenex_6 Int) (v_prenex_7 Int) (v_prenex_4 Int) (v_prenex_5 Int)) (let ((.cse11 (select (store (select (let ((.cse13 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store .cse3 .cse4 v_prenex_7)))) (store .cse13 |c_ULTIMATE.start_dll_create_~head~0#1.base| (store (select .cse13 |c_ULTIMATE.start_dll_create_~head~0#1.base|) .cse2 v_prenex_4))) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) v_prenex_5 v_prenex_6) .cse5))) (or (< .cse11 .cse6) (< |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| v_prenex_5) (not (<= v_prenex_4 |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|)) (< .cse11 .cse12)))) .cse14 (or .cse0 (and (or (forall ((v_prenex_5 Int) (v_ArrVal_1763 Int) (v_ArrVal_1758 Int)) (let ((.cse15 (select (store (select (let ((.cse16 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store .cse8 .cse4 v_ArrVal_1758)))) (store .cse16 |c_ULTIMATE.start_dll_create_~head~0#1.base| (store (select .cse16 |c_ULTIMATE.start_dll_create_~head~0#1.base|) .cse2 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|))) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) v_prenex_5 v_ArrVal_1763) .cse5))) (or (= |c_ULTIMATE.start_dll_create_~new_head~0#1.base| .cse15) (= .cse15 |c_ULTIMATE.start_dll_create_~head~0#1.base|)))) .cse10) .cse14 (forall ((v_prenex_5 Int) (v_ArrVal_1763 Int) (v_ArrVal_1758 Int)) (or (forall ((v_prenex_6 Int) (v_prenex_7 Int) (v_prenex_4 Int)) (or (not (<= v_prenex_4 |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|)) (< (select (store (select (let ((.cse17 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store .cse3 .cse4 v_prenex_7)))) (store .cse17 |c_ULTIMATE.start_dll_create_~head~0#1.base| (store (select .cse17 |c_ULTIMATE.start_dll_create_~head~0#1.base|) .cse2 v_prenex_4))) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) v_prenex_5 v_prenex_6) .cse5) .cse12))) (< |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| v_prenex_5) (= (select (store (select (let ((.cse18 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store .cse8 .cse4 v_ArrVal_1758)))) (store .cse18 |c_ULTIMATE.start_dll_create_~head~0#1.base| (store (select .cse18 |c_ULTIMATE.start_dll_create_~head~0#1.base|) .cse2 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|))) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) v_prenex_5 v_ArrVal_1763) .cse5) |c_ULTIMATE.start_dll_create_~head~0#1.base|))) (or (forall ((v_prenex_5 Int) (v_ArrVal_1763 Int) (v_ArrVal_1758 Int)) (= (select (store (select (let ((.cse19 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store .cse8 .cse4 v_ArrVal_1758)))) (store .cse19 |c_ULTIMATE.start_dll_create_~head~0#1.base| (store (select .cse19 |c_ULTIMATE.start_dll_create_~head~0#1.base|) .cse2 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|))) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) v_prenex_5 v_ArrVal_1763) .cse5) |c_ULTIMATE.start_dll_create_~head~0#1.base|)) .cse10))) .cse10))) is different from false [2022-11-03 02:35:30,501 INFO L356 Elim1Store]: treesize reduction 36, result has 59.6 percent of original size [2022-11-03 02:35:30,502 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 3 case distinctions, treesize of input 52 treesize of output 65 [2022-11-03 02:35:30,510 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:35:30,511 INFO L390 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 65 treesize of output 65 [2022-11-03 02:35:30,536 INFO L390 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 [2022-11-03 02:35:30,541 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:35:30,549 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:35:30,549 INFO L390 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 38 [2022-11-03 02:35:30,588 INFO L356 Elim1Store]: treesize reduction 30, result has 3.2 percent of original size [2022-11-03 02:35:30,589 INFO L390 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 3 case distinctions, treesize of input 52 treesize of output 1 [2022-11-03 02:35:30,594 WARN L234 Elim1Store]: Array PQE input equivalent to true [2022-11-03 02:35:30,601 INFO L356 Elim1Store]: treesize reduction 30, result has 3.2 percent of original size [2022-11-03 02:35:30,601 INFO L390 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 3 case distinctions, treesize of input 105 treesize of output 1 [2022-11-03 02:35:30,612 INFO L356 Elim1Store]: treesize reduction 30, result has 3.2 percent of original size [2022-11-03 02:35:30,613 INFO L390 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 3 case distinctions, treesize of input 52 treesize of output 1 [2022-11-03 02:35:30,619 INFO L356 Elim1Store]: treesize reduction 30, result has 3.2 percent of original size [2022-11-03 02:35:30,619 INFO L390 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 3 case distinctions, treesize of input 105 treesize of output 1 [2022-11-03 02:35:30,626 INFO L356 Elim1Store]: treesize reduction 30, result has 3.2 percent of original size [2022-11-03 02:35:30,626 INFO L390 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 3 case distinctions, treesize of input 109 treesize of output 1 [2022-11-03 02:35:30,638 INFO L356 Elim1Store]: treesize reduction 30, result has 3.2 percent of original size [2022-11-03 02:35:30,639 INFO L390 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 3 case distinctions, treesize of input 54 treesize of output 1 [2022-11-03 02:35:30,649 INFO L356 Elim1Store]: treesize reduction 30, result has 3.2 percent of original size [2022-11-03 02:35:30,650 INFO L390 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 3 case distinctions, treesize of input 52 treesize of output 1 [2022-11-03 02:35:30,768 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 16 proven. 7 refuted. 0 times theorem prover too weak. 3 trivial. 4 not checked. [2022-11-03 02:35:30,768 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1011199133] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:35:30,769 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2120773989] [2022-11-03 02:35:30,770 INFO L159 IcfgInterpreter]: Started Sifa with 14 locations of interest [2022-11-03 02:35:30,770 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 02:35:30,770 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 02:35:30,770 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 02:35:30,770 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 02:35:30,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:30,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:30,793 INFO L390 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 [2022-11-03 02:35:30,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:30,815 INFO L390 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 [2022-11-03 02:35:30,823 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:35:30,832 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:35:30,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:30,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:30,848 INFO L390 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 [2022-11-03 02:35:30,858 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:35:30,866 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:35:30,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:30,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:30,884 INFO L390 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 [2022-11-03 02:35:30,893 INFO L390 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 [2022-11-03 02:35:30,904 INFO L390 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 [2022-11-03 02:35:30,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:30,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:30,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:30,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:30,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:30,947 INFO L390 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 [2022-11-03 02:35:30,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:30,983 INFO L390 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 [2022-11-03 02:35:30,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:30,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:30,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:30,999 INFO L390 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 [2022-11-03 02:35:31,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:31,012 INFO L390 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 [2022-11-03 02:35:31,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:31,039 INFO L390 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 [2022-11-03 02:35:31,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:31,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:31,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:31,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:31,054 INFO L390 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 [2022-11-03 02:35:31,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:31,070 INFO L390 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 [2022-11-03 02:35:31,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:31,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:31,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:31,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:31,094 INFO L390 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 [2022-11-03 02:35:31,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:31,120 INFO L390 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 [2022-11-03 02:35:31,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:31,135 INFO L390 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 [2022-11-03 02:35:31,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:31,169 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:35:31,169 INFO L390 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 [2022-11-03 02:35:31,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:31,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:31,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:31,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:31,187 INFO L390 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 [2022-11-03 02:35:31,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:31,202 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:35:31,203 INFO L390 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 [2022-11-03 02:35:31,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:31,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:31,401 INFO L356 Elim1Store]: treesize reduction 34, result has 41.4 percent of original size [2022-11-03 02:35:31,402 INFO L390 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 [2022-11-03 02:35:31,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:31,466 INFO L390 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 [2022-11-03 02:35:31,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:31,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:31,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:31,479 INFO L390 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 [2022-11-03 02:35:31,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:31,493 INFO L390 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 [2022-11-03 02:35:31,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:31,520 INFO L390 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 [2022-11-03 02:35:31,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:31,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:31,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:31,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:31,534 INFO L390 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 [2022-11-03 02:35:31,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:31,549 INFO L390 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 [2022-11-03 02:35:31,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:31,575 INFO L390 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 [2022-11-03 02:35:31,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:31,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:31,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:31,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:31,591 INFO L390 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 [2022-11-03 02:35:31,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:31,616 INFO L390 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 [2022-11-03 02:35:31,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:31,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:31,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:31,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:31,657 INFO L390 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 [2022-11-03 02:35:31,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:31,671 INFO L390 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 [2022-11-03 02:35:31,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:31,686 INFO L390 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 [2022-11-03 02:35:31,731 INFO L390 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 [2022-11-03 02:35:31,737 INFO L390 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 [2022-11-03 02:35:31,750 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:35:31,755 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:35:31,763 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:35:31,774 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:35:31,781 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:35:31,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:31,789 INFO L390 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 [2022-11-03 02:35:31,802 INFO L390 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 [2022-11-03 02:35:31,810 INFO L390 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 [2022-11-03 02:35:31,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:31,819 INFO L390 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 [2022-11-03 02:35:31,838 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:35:31,848 INFO L356 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-11-03 02:35:31,848 INFO L390 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 [2022-11-03 02:35:31,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:31,859 INFO L390 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 [2022-11-03 02:35:31,870 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:35:31,882 INFO L356 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-11-03 02:35:31,883 INFO L390 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 [2022-11-03 02:35:31,937 INFO L390 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 [2022-11-03 02:35:31,942 INFO L390 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 [2022-11-03 02:35:31,955 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:35:31,960 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:35:31,967 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:35:31,978 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:35:31,985 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:35:31,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:31,993 INFO L390 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 [2022-11-03 02:35:32,005 INFO L390 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 [2022-11-03 02:35:32,012 INFO L390 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 [2022-11-03 02:35:32,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:32,022 INFO L390 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 [2022-11-03 02:35:32,040 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:35:32,051 INFO L356 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-11-03 02:35:32,052 INFO L390 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 [2022-11-03 02:35:32,062 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:35:32,072 INFO L356 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-11-03 02:35:32,072 INFO L390 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 [2022-11-03 02:35:32,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:32,084 INFO L390 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 [2022-11-03 02:35:32,165 INFO L390 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 [2022-11-03 02:35:32,176 INFO L390 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 [2022-11-03 02:35:32,185 INFO L390 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 [2022-11-03 02:35:32,270 INFO L390 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 [2022-11-03 02:35:32,278 INFO L390 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 [2022-11-03 02:35:32,288 INFO L390 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 [2022-11-03 02:35:32,406 INFO L390 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 [2022-11-03 02:35:32,419 INFO L390 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 [2022-11-03 02:35:32,427 INFO L390 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 [2022-11-03 02:35:32,467 INFO L390 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 [2022-11-03 02:35:32,473 INFO L390 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 [2022-11-03 02:35:32,489 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:35:32,495 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:35:32,502 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:35:32,555 INFO L390 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 [2022-11-03 02:35:32,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:32,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:32,568 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:35:32,575 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 02:35:32,576 INFO L390 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 [2022-11-03 02:35:32,603 INFO L390 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 [2022-11-03 02:35:32,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:32,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:32,649 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:35:32,656 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 02:35:32,656 INFO L390 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 [2022-11-03 02:35:32,683 INFO L390 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 [2022-11-03 02:35:32,709 INFO L390 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 [2022-11-03 02:35:32,730 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 02:35:35,215 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '5910#(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) (or (not (<= (+ |ULTIMATE.start_dll_update_at_~head#1.offset| 4) (select |#length| |ULTIMATE.start_dll_update_at_~head#1.base|))) (not (<= 0 |ULTIMATE.start_dll_update_at_~head#1.offset|))) (not (< 0 |ULTIMATE.start_dll_update_at_~index#1|)) (<= 0 |ULTIMATE.start_dll_update_at_#in~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|) (<= 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 [2022-11-03 02:35:35,215 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 02:35:35,215 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 02:35:35,215 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 12, 13] total 27 [2022-11-03 02:35:35,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166665294] [2022-11-03 02:35:35,216 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 02:35:35,216 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-11-03 02:35:35,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:35:35,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-11-03 02:35:35,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=147, Invalid=1055, Unknown=4, NotChecked=276, Total=1482 [2022-11-03 02:35:35,217 INFO L87 Difference]: Start difference. First operand 75 states and 81 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) [2022-11-03 02:35:37,402 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse3 (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|)) (.cse2 (+ |c_ULTIMATE.start_dll_create_~head~0#1.offset| 8)) (.cse8 (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|)) (.cse4 (+ 8 |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|)) (.cse5 (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 4))) (let ((.cse6 (+ |c_ULTIMATE.start_dll_create_~head~0#1.offset| 9)) (.cse0 (= |c_ULTIMATE.start_dll_create_~new_head~0#1.base| |c_ULTIMATE.start_dll_create_~head~0#1.base|)) (.cse14 (forall ((v_prenex_5 Int) (v_ArrVal_1763 Int) (v_ArrVal_1758 Int)) (let ((.cse21 (select (store (select (let ((.cse22 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store .cse8 .cse4 v_ArrVal_1758)))) (store .cse22 |c_ULTIMATE.start_dll_create_~head~0#1.base| (store (select .cse22 |c_ULTIMATE.start_dll_create_~head~0#1.base|) .cse2 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|))) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) v_prenex_5 v_ArrVal_1763) .cse5))) (or (= |c_ULTIMATE.start_dll_create_~new_head~0#1.base| .cse21) (< |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| v_prenex_5) (= .cse21 |c_ULTIMATE.start_dll_create_~head~0#1.base|))))) (.cse12 (+ 9 |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|)) (.cse10 (forall ((v_ArrVal_1759 Int) (|v_ULTIMATE.start_dll_update_at_~head#1.offset_72| Int) (v_ArrVal_1765 Int) (v_ArrVal_1757 Int)) (or (not (<= v_ArrVal_1759 |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|)) (<= 0 (select (store (select (let ((.cse20 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store .cse3 .cse4 v_ArrVal_1757)))) (store .cse20 |c_ULTIMATE.start_dll_create_~head~0#1.base| (store (select .cse20 |c_ULTIMATE.start_dll_create_~head~0#1.base|) .cse2 v_ArrVal_1759))) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_72| v_ArrVal_1765) .cse5)) (< |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_72|))))) (and (or .cse0 (and (forall ((v_prenex_6 Int) (v_prenex_7 Int) (v_prenex_4 Int) (v_prenex_5 Int) (v_ArrVal_1763 Int) (v_ArrVal_1758 Int)) (or (< (select (store (select (let ((.cse1 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store .cse3 .cse4 v_prenex_7)))) (store .cse1 |c_ULTIMATE.start_dll_create_~head~0#1.base| (store (select .cse1 |c_ULTIMATE.start_dll_create_~head~0#1.base|) .cse2 v_prenex_4))) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) v_prenex_5 v_prenex_6) .cse5) .cse6) (= |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (select (store (select (let ((.cse7 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store .cse8 .cse4 v_ArrVal_1758)))) (store .cse7 |c_ULTIMATE.start_dll_create_~head~0#1.base| (store (select .cse7 |c_ULTIMATE.start_dll_create_~head~0#1.base|) .cse2 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|))) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) v_prenex_5 v_ArrVal_1763) .cse5)) (< |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| v_prenex_5) (not (<= v_prenex_4 |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|)))) (or (forall ((v_prenex_5 Int) (v_ArrVal_1763 Int) (v_ArrVal_1758 Int)) (= |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (select (store (select (let ((.cse9 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store .cse8 .cse4 v_ArrVal_1758)))) (store .cse9 |c_ULTIMATE.start_dll_create_~head~0#1.base| (store (select .cse9 |c_ULTIMATE.start_dll_create_~head~0#1.base|) .cse2 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|))) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) v_prenex_5 v_ArrVal_1763) .cse5))) .cse10))) (<= 0 |c_ULTIMATE.start_dll_create_~head~0#1.offset|) (forall ((v_prenex_6 Int) (v_prenex_7 Int) (v_prenex_4 Int) (v_prenex_5 Int)) (let ((.cse11 (select (store (select (let ((.cse13 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store .cse3 .cse4 v_prenex_7)))) (store .cse13 |c_ULTIMATE.start_dll_create_~head~0#1.base| (store (select .cse13 |c_ULTIMATE.start_dll_create_~head~0#1.base|) .cse2 v_prenex_4))) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) v_prenex_5 v_prenex_6) .cse5))) (or (< .cse11 .cse6) (< |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| v_prenex_5) (not (<= v_prenex_4 |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|)) (< .cse11 .cse12)))) (= (select |c_#valid| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) 1) (<= |c_ULTIMATE.start_dll_create_~len#1| 1) (= (select .cse8 .cse5) |c_ULTIMATE.start_dll_create_~head~0#1.base|) (not .cse0) (= |c_ULTIMATE.start_dll_create_~head~0#1.offset| (select .cse3 .cse5)) .cse14 (or .cse0 (and (or (forall ((v_prenex_5 Int) (v_ArrVal_1763 Int) (v_ArrVal_1758 Int)) (let ((.cse15 (select (store (select (let ((.cse16 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store .cse8 .cse4 v_ArrVal_1758)))) (store .cse16 |c_ULTIMATE.start_dll_create_~head~0#1.base| (store (select .cse16 |c_ULTIMATE.start_dll_create_~head~0#1.base|) .cse2 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|))) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) v_prenex_5 v_ArrVal_1763) .cse5))) (or (= |c_ULTIMATE.start_dll_create_~new_head~0#1.base| .cse15) (= .cse15 |c_ULTIMATE.start_dll_create_~head~0#1.base|)))) .cse10) .cse14 (forall ((v_prenex_5 Int) (v_ArrVal_1763 Int) (v_ArrVal_1758 Int)) (or (forall ((v_prenex_6 Int) (v_prenex_7 Int) (v_prenex_4 Int)) (or (not (<= v_prenex_4 |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|)) (< (select (store (select (let ((.cse17 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store .cse3 .cse4 v_prenex_7)))) (store .cse17 |c_ULTIMATE.start_dll_create_~head~0#1.base| (store (select .cse17 |c_ULTIMATE.start_dll_create_~head~0#1.base|) .cse2 v_prenex_4))) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) v_prenex_5 v_prenex_6) .cse5) .cse12))) (< |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| v_prenex_5) (= (select (store (select (let ((.cse18 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store .cse8 .cse4 v_ArrVal_1758)))) (store .cse18 |c_ULTIMATE.start_dll_create_~head~0#1.base| (store (select .cse18 |c_ULTIMATE.start_dll_create_~head~0#1.base|) .cse2 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|))) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) v_prenex_5 v_ArrVal_1763) .cse5) |c_ULTIMATE.start_dll_create_~head~0#1.base|))) (or (forall ((v_prenex_5 Int) (v_ArrVal_1763 Int) (v_ArrVal_1758 Int)) (= (select (store (select (let ((.cse19 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store .cse8 .cse4 v_ArrVal_1758)))) (store .cse19 |c_ULTIMATE.start_dll_create_~head~0#1.base| (store (select .cse19 |c_ULTIMATE.start_dll_create_~head~0#1.base|) .cse2 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|))) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) v_prenex_5 v_ArrVal_1763) .cse5) |c_ULTIMATE.start_dll_create_~head~0#1.base|)) .cse10))) (<= 0 |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|) .cse10 (= (select |c_#valid| |c_ULTIMATE.start_dll_create_~head~0#1.base|) 1)))) is different from false [2022-11-03 02:35:39,489 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse3 (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|)) (.cse4 (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 4))) (let ((.cse5 (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|)) (.cse2 (select .cse3 .cse4))) (let ((.cse1 (+ .cse2 8)) (.cse0 (select .cse5 .cse4))) (and (= |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (select (select |c_#memory_$Pointer$.base| .cse0) .cse1)) (<= 0 .cse2) (<= 0 |c_ULTIMATE.start_dll_create_~head~0#1.offset|) (<= (+ .cse2 12) (select |c_#length| .cse0)) (<= (select (select |c_#memory_$Pointer$.offset| .cse0) .cse1) |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|) (= (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|)) (<= |c_ULTIMATE.start_dll_create_~len#1| 1) (= .cse0 |c_ULTIMATE.start_dll_create_~head~0#1.base|) (not (= |c_ULTIMATE.start_dll_create_~new_head~0#1.base| |c_ULTIMATE.start_dll_create_~head~0#1.base|)) (<= (+ 12 |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|) (select |c_#length| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|)) (= |c_ULTIMATE.start_dll_create_~head~0#1.offset| .cse2) (<= 0 |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|) (forall ((|v_ULTIMATE.start_dll_update_at_~head#1.offset_72| Int)) (or (forall ((v_ArrVal_1765 Int)) (<= 0 (select (store .cse3 |v_ULTIMATE.start_dll_update_at_~head#1.offset_72| v_ArrVal_1765) .cse4))) (< |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_72|))) (forall ((|v_ULTIMATE.start_dll_update_at_~head#1.offset_72| Int)) (or (forall ((v_ArrVal_1763 Int) (v_ArrVal_1765 Int)) (<= (+ (select (store .cse3 |v_ULTIMATE.start_dll_update_at_~head#1.offset_72| v_ArrVal_1765) .cse4) 4) (select |c_#length| (select (store .cse5 |v_ULTIMATE.start_dll_update_at_~head#1.offset_72| v_ArrVal_1763) .cse4)))) (< |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_72|))) (= (select |c_#valid| |c_ULTIMATE.start_dll_create_~head~0#1.base|) 1))))) is different from false [2022-11-03 02:35:41,493 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse3 (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~head~0#1.base|)) (.cse4 (+ |c_ULTIMATE.start_dll_create_~head~0#1.offset| 4))) (let ((.cse2 (select .cse3 .cse4)) (.cse5 (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base|))) (let ((.cse0 (select .cse5 .cse4)) (.cse1 (+ .cse2 8))) (and (<= 0 |c_ULTIMATE.start_dll_create_~head~0#1.offset|) (not (= .cse0 |c_ULTIMATE.start_dll_create_~head~0#1.base|)) (= (select (select |c_#memory_$Pointer$.base| .cse0) .cse1) |c_ULTIMATE.start_dll_create_~head~0#1.base|) (<= (+ |c_ULTIMATE.start_dll_create_~head~0#1.offset| 12) (select |c_#length| |c_ULTIMATE.start_dll_create_~head~0#1.base|)) (<= |c_ULTIMATE.start_dll_create_~len#1| 0) (<= (+ .cse2 12) (select |c_#length| .cse0)) (forall ((|v_ULTIMATE.start_dll_update_at_~head#1.offset_72| Int)) (or (forall ((v_ArrVal_1763 Int) (v_ArrVal_1765 Int)) (<= (+ (select (store .cse3 |v_ULTIMATE.start_dll_update_at_~head#1.offset_72| v_ArrVal_1765) .cse4) 4) (select |c_#length| (select (store .cse5 |v_ULTIMATE.start_dll_update_at_~head#1.offset_72| v_ArrVal_1763) .cse4)))) (< |c_ULTIMATE.start_dll_create_~head~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_72|))) (<= 0 .cse2) (forall ((|v_ULTIMATE.start_dll_update_at_~head#1.offset_72| Int)) (or (< |c_ULTIMATE.start_dll_create_~head~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_72|) (forall ((v_ArrVal_1765 Int)) (<= 0 (select (store .cse3 |v_ULTIMATE.start_dll_update_at_~head#1.offset_72| v_ArrVal_1765) .cse4))))) (= (select |c_#valid| |c_ULTIMATE.start_dll_create_~head~0#1.base|) 1) (<= (select (select |c_#memory_$Pointer$.offset| .cse0) .cse1) |c_ULTIMATE.start_dll_create_~head~0#1.offset|))))) is different from false [2022-11-03 02:35:43,497 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse3 (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~s~0#1.base|)) (.cse4 (+ |c_ULTIMATE.start_main_~s~0#1.offset| 4))) (let ((.cse0 (select .cse3 .cse4)) (.cse5 (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~s~0#1.base|))) (let ((.cse1 (select .cse5 .cse4)) (.cse2 (+ 8 .cse0))) (and (<= (+ |c_ULTIMATE.start_main_~s~0#1.offset| 12) (select |c_#length| |c_ULTIMATE.start_main_~s~0#1.base|)) (<= (+ 12 .cse0) (select |c_#length| .cse1)) (<= (select (select |c_#memory_$Pointer$.offset| .cse1) .cse2) |c_ULTIMATE.start_main_~s~0#1.offset|) (<= 0 .cse0) (not (= |c_ULTIMATE.start_main_~s~0#1.base| .cse1)) (= (select (select |c_#memory_$Pointer$.base| .cse1) .cse2) |c_ULTIMATE.start_main_~s~0#1.base|) (forall ((|v_ULTIMATE.start_dll_update_at_~head#1.offset_72| Int)) (or (< |c_ULTIMATE.start_main_~s~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_72|) (forall ((v_ArrVal_1765 Int)) (<= 0 (select (store .cse3 |v_ULTIMATE.start_dll_update_at_~head#1.offset_72| v_ArrVal_1765) .cse4))))) (forall ((|v_ULTIMATE.start_dll_update_at_~head#1.offset_72| Int)) (or (forall ((v_ArrVal_1763 Int) (v_ArrVal_1765 Int)) (<= (+ 4 (select (store .cse3 |v_ULTIMATE.start_dll_update_at_~head#1.offset_72| v_ArrVal_1765) .cse4)) (select |c_#length| (select (store .cse5 |v_ULTIMATE.start_dll_update_at_~head#1.offset_72| v_ArrVal_1763) .cse4)))) (< |c_ULTIMATE.start_main_~s~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_72|))))))) is different from false [2022-11-03 02:35:43,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:35:43,861 INFO L93 Difference]: Finished difference Result 58 states and 62 transitions. [2022-11-03 02:35:43,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-03 02:35:43,861 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 [2022-11-03 02:35:43,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:35:43,862 INFO L225 Difference]: With dead ends: 58 [2022-11-03 02:35:43,862 INFO L226 Difference]: Without dead ends: 58 [2022-11-03 02:35:43,862 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 8 IntricatePredicates, 0 DeprecatedPredicates, 392 ImplicationChecksByTransitivity, 25.1s TimeCoverageRelationStatistics Valid=211, Invalid=1535, Unknown=8, NotChecked=696, Total=2450 [2022-11-03 02:35:43,863 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 42 mSDsluCounter, 265 mSDsCounter, 0 mSdLazyCounter, 335 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 623 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 271 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 02:35:43,863 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 193 Invalid, 623 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 335 Invalid, 0 Unknown, 271 Unchecked, 0.3s Time] [2022-11-03 02:35:43,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2022-11-03 02:35:43,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2022-11-03 02:35:43,865 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) [2022-11-03 02:35:43,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 62 transitions. [2022-11-03 02:35:43,865 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 62 transitions. Word has length 33 [2022-11-03 02:35:43,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:35:43,865 INFO L495 AbstractCegarLoop]: Abstraction has 58 states and 62 transitions. [2022-11-03 02:35:43,866 INFO L496 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) [2022-11-03 02:35:43,866 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 62 transitions. [2022-11-03 02:35:43,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-11-03 02:35:43,866 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:35:43,867 INFO L195 NwaCegarLoop]: 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] [2022-11-03 02:35:43,892 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_654ffbce-fddd-43d7-97a9-56350347d9c0/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-11-03 02:35:44,074 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_654ffbce-fddd-43d7-97a9-56350347d9c0/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2022-11-03 02:35:44,074 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 20 more)] === [2022-11-03 02:35:44,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:35:44,075 INFO L85 PathProgramCache]: Analyzing trace with hash -603885301, now seen corresponding path program 1 times [2022-11-03 02:35:44,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:35:44,075 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [879811116] [2022-11-03 02:35:44,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:35:44,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:35:44,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:35:44,208 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-03 02:35:44,209 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:35:44,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [879811116] [2022-11-03 02:35:44,209 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [879811116] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:35:44,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [833626939] [2022-11-03 02:35:44,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:35:44,210 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:35:44,210 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_654ffbce-fddd-43d7-97a9-56350347d9c0/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:35:44,211 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_654ffbce-fddd-43d7-97a9-56350347d9c0/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:35:44,224 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_654ffbce-fddd-43d7-97a9-56350347d9c0/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-11-03 02:35:44,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:35:44,442 INFO L263 TraceCheckSpWp]: Trace formula consists of 354 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-03 02:35:44,443 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:35:44,463 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-03 02:35:44,463 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:35:44,501 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-03 02:35:44,502 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [833626939] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:35:44,502 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [906881411] [2022-11-03 02:35:44,504 INFO L159 IcfgInterpreter]: Started Sifa with 19 locations of interest [2022-11-03 02:35:44,505 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 02:35:44,505 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 02:35:44,506 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 02:35:44,506 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 02:35:44,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:44,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:44,533 INFO L390 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 [2022-11-03 02:35:44,556 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:35:44,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:44,565 INFO L390 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 [2022-11-03 02:35:44,575 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:35:44,592 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:35:44,599 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:35:44,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:44,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:44,613 INFO L390 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 [2022-11-03 02:35:44,634 INFO L390 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 [2022-11-03 02:35:44,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:44,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:44,647 INFO L390 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 [2022-11-03 02:35:44,659 INFO L390 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 [2022-11-03 02:35:44,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:44,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:44,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:44,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:44,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:44,717 INFO L390 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 [2022-11-03 02:35:44,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:44,755 INFO L390 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 [2022-11-03 02:35:44,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:44,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:44,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:44,770 INFO L390 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 [2022-11-03 02:35:44,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:44,788 INFO L390 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 [2022-11-03 02:35:44,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:44,823 INFO L390 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 [2022-11-03 02:35:44,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:44,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:44,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:44,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:44,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:44,840 INFO L390 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 [2022-11-03 02:35:44,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:44,854 INFO L390 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 [2022-11-03 02:35:44,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:44,890 INFO L390 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 [2022-11-03 02:35:44,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:44,904 INFO L390 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 [2022-11-03 02:35:44,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:44,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:44,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:44,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:44,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:44,926 INFO L390 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 [2022-11-03 02:35:44,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:44,960 INFO L390 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 [2022-11-03 02:35:44,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:44,974 INFO L390 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 [2022-11-03 02:35:44,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:44,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:44,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:44,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:44,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:44,995 INFO L390 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 [2022-11-03 02:35:45,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:45,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:45,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:45,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:45,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:45,178 INFO L390 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 [2022-11-03 02:35:45,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:45,222 INFO L390 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 [2022-11-03 02:35:45,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:45,233 INFO L390 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 [2022-11-03 02:35:45,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:45,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:45,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:45,250 INFO L390 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 [2022-11-03 02:35:45,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:45,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:45,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:45,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:45,281 INFO L390 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 [2022-11-03 02:35:45,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:45,294 INFO L390 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 [2022-11-03 02:35:45,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:45,313 INFO L390 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 [2022-11-03 02:35:45,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:45,345 INFO L390 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 [2022-11-03 02:35:45,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:45,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:45,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:45,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:45,366 INFO L390 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 [2022-11-03 02:35:45,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:45,382 INFO L390 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 [2022-11-03 02:35:45,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:45,436 INFO L390 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 [2022-11-03 02:35:45,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:45,455 INFO L390 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 [2022-11-03 02:35:45,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:45,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:45,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:45,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:45,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:45,476 INFO L390 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 [2022-11-03 02:35:45,709 INFO L390 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 [2022-11-03 02:35:45,722 INFO L390 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 [2022-11-03 02:35:45,731 INFO L390 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 [2022-11-03 02:35:45,799 INFO L390 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 [2022-11-03 02:35:45,808 INFO L390 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 [2022-11-03 02:35:45,822 INFO L390 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 [2022-11-03 02:35:45,915 INFO L390 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 [2022-11-03 02:35:45,923 INFO L390 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 [2022-11-03 02:35:45,935 INFO L390 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 [2022-11-03 02:35:46,869 INFO L390 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 [2022-11-03 02:35:46,881 INFO L390 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 [2022-11-03 02:35:46,900 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:35:46,910 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:35:46,919 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:35:46,943 INFO L390 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 [2022-11-03 02:35:46,949 INFO L390 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 [2022-11-03 02:35:46,962 INFO L390 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 [2022-11-03 02:35:46,976 INFO L390 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 [2022-11-03 02:35:46,983 INFO L390 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 [2022-11-03 02:35:46,991 INFO L390 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 [2022-11-03 02:35:47,006 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 02:35:50,433 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '6274#(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 [2022-11-03 02:35:50,433 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 02:35:50,433 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 02:35:50,433 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 7 [2022-11-03 02:35:50,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226248396] [2022-11-03 02:35:50,434 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 02:35:50,434 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-03 02:35:50,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:35:50,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-03 02:35:50,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=467, Unknown=0, NotChecked=0, Total=552 [2022-11-03 02:35:50,435 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) [2022-11-03 02:35:50,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:35:50,521 INFO L93 Difference]: Finished difference Result 55 states and 58 transitions. [2022-11-03 02:35:50,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-03 02:35:50,521 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 [2022-11-03 02:35:50,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:35:50,522 INFO L225 Difference]: With dead ends: 55 [2022-11-03 02:35:50,522 INFO L226 Difference]: Without dead ends: 55 [2022-11-03 02:35:50,522 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 83 SyntacticMatches, 4 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 212 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=104, Invalid=598, Unknown=0, NotChecked=0, Total=702 [2022-11-03 02:35:50,523 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 57 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:35:50,523 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 74 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:35:50,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2022-11-03 02:35:50,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2022-11-03 02:35:50,524 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) [2022-11-03 02:35:50,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 58 transitions. [2022-11-03 02:35:50,525 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 58 transitions. Word has length 35 [2022-11-03 02:35:50,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:35:50,525 INFO L495 AbstractCegarLoop]: Abstraction has 55 states and 58 transitions. [2022-11-03 02:35:50,525 INFO L496 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) [2022-11-03 02:35:50,525 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 58 transitions. [2022-11-03 02:35:50,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-11-03 02:35:50,526 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:35:50,526 INFO L195 NwaCegarLoop]: 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] [2022-11-03 02:35:50,552 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_654ffbce-fddd-43d7-97a9-56350347d9c0/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-11-03 02:35:50,726 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_654ffbce-fddd-43d7-97a9-56350347d9c0/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2022-11-03 02:35:50,726 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 20 more)] === [2022-11-03 02:35:50,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:35:50,727 INFO L85 PathProgramCache]: Analyzing trace with hash -603883124, now seen corresponding path program 1 times [2022-11-03 02:35:50,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:35:50,727 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529528112] [2022-11-03 02:35:50,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:35:50,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:35:50,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:35:52,277 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 5 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:35:52,278 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:35:52,278 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529528112] [2022-11-03 02:35:52,278 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1529528112] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:35:52,278 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1099871055] [2022-11-03 02:35:52,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:35:52,278 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:35:52,278 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_654ffbce-fddd-43d7-97a9-56350347d9c0/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:35:52,280 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_654ffbce-fddd-43d7-97a9-56350347d9c0/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:35:52,281 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_654ffbce-fddd-43d7-97a9-56350347d9c0/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-11-03 02:35:52,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:35:52,477 INFO L263 TraceCheckSpWp]: Trace formula consists of 354 conjuncts, 58 conjunts are in the unsatisfiable core [2022-11-03 02:35:52,479 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:35:52,487 INFO L390 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 [2022-11-03 02:35:52,543 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-03 02:35:52,543 INFO L390 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 [2022-11-03 02:35:52,573 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:35:52,609 INFO L390 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 [2022-11-03 02:35:52,626 INFO L356 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-03 02:35:52,627 INFO L390 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 [2022-11-03 02:35:52,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:52,771 INFO L390 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 [2022-11-03 02:35:52,903 INFO L356 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-03 02:35:52,904 INFO L390 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 [2022-11-03 02:35:53,047 INFO L390 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 [2022-11-03 02:35:53,053 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 5 proven. 14 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-03 02:35:53,053 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:35:53,172 INFO L356 Elim1Store]: treesize reduction 5, result has 70.6 percent of original size [2022-11-03 02:35:53,172 INFO L390 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 [2022-11-03 02:35:53,177 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2007 (Array Int Int))) (= (select (select (store |c_#memory_$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 [2022-11-03 02:35:53,186 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2007 (Array Int Int))) (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_update_at_~head#1.base|) (+ |c_ULTIMATE.start_dll_update_at_~head#1.offset| 4)))) (= .cse0 (select (select (store |c_#memory_$Pointer$.base| .cse0 v_ArrVal_2007) |c_ULTIMATE.start_main_~s~0#1.base|) (+ |c_ULTIMATE.start_main_~s~0#1.offset| 4))))) is different from false [2022-11-03 02:35:53,195 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2007 (Array Int Int))) (let ((.cse1 (+ |c_ULTIMATE.start_main_~s~0#1.offset| 4))) (let ((.cse0 (select (select |c_#memory_$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 [2022-11-03 02:35:53,202 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2007 (Array Int Int)) (v_ArrVal_2005 Int)) (let ((.cse0 (store |c_#memory_$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 [2022-11-03 02:35:53,218 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2007 (Array Int Int)) (|v_ULTIMATE.start_dll_update_at_~head#1.offset_83| Int) (v_ArrVal_2005 Int)) (or (< |c_ULTIMATE.start_main_~s~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_83|) (let ((.cse0 (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~s~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_83| v_ArrVal_2005)) (.cse2 (+ |c_ULTIMATE.start_main_~s~0#1.offset| 4))) (let ((.cse1 (select .cse0 .cse2))) (= (select (select (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~s~0#1.base| .cse0) .cse1 v_ArrVal_2007) |c_ULTIMATE.start_main_~s~0#1.base|) .cse2) .cse1))))) is different from false [2022-11-03 02:35:53,229 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2007 (Array Int Int)) (|v_ULTIMATE.start_dll_update_at_~head#1.offset_83| Int) (v_ArrVal_2005 Int)) (or (< |c_ULTIMATE.start_dll_create_~head~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_83|) (let ((.cse0 (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_83| v_ArrVal_2005)) (.cse2 (+ |c_ULTIMATE.start_dll_create_~head~0#1.offset| 4))) (let ((.cse1 (select .cse0 .cse2))) (= (select (select (store (store |c_#memory_$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))))) is different from false [2022-11-03 02:35:53,241 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2007 (Array Int Int)) (|v_ULTIMATE.start_dll_update_at_~head#1.offset_83| Int) (v_ArrVal_2005 Int)) (or (let ((.cse1 (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_83| v_ArrVal_2005)) (.cse2 (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 4))) (let ((.cse0 (select .cse1 .cse2))) (= .cse0 (select (select (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| .cse1) .cse0 v_ArrVal_2007) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) .cse2)))) (< |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_83|))) is different from false [2022-11-03 02:35:53,253 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2007 (Array Int Int)) (v_ArrVal_2004 (Array Int Int)) (|v_ULTIMATE.start_dll_update_at_~head#1.offset_83| Int) (v_ArrVal_2005 Int)) (or (let ((.cse1 (store |c_#memory_$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_83| 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_83|))) is different from false [2022-11-03 02:35:53,279 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2007 (Array Int Int)) (v_ArrVal_2003 Int) (v_ArrVal_2004 (Array Int Int)) (|v_ULTIMATE.start_dll_update_at_~head#1.offset_83| Int) (v_ArrVal_2005 Int)) (or (< |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_83|) (let ((.cse1 (store (store |c_#memory_$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|) (+ 8 |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|) 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_83| 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))))))) is different from false [2022-11-03 02:35:53,293 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:35:53,293 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 [2022-11-03 02:35:53,301 INFO L390 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 [2022-11-03 02:35:53,305 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:35:53,307 INFO L390 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 [2022-11-03 02:35:53,310 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:35:53,312 INFO L390 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 [2022-11-03 02:35:53,318 INFO L390 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 [2022-11-03 02:35:53,397 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 1 trivial. 11 not checked. [2022-11-03 02:35:53,398 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1099871055] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:35:53,398 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [251992133] [2022-11-03 02:35:53,400 INFO L159 IcfgInterpreter]: Started Sifa with 19 locations of interest [2022-11-03 02:35:53,400 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 02:35:53,400 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 02:35:53,401 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 02:35:53,401 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 02:35:53,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:53,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:53,436 INFO L390 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 [2022-11-03 02:35:53,466 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:35:53,475 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:35:53,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:53,485 INFO L390 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 [2022-11-03 02:35:53,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:53,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:53,508 INFO L390 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 [2022-11-03 02:35:53,519 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:35:53,527 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:35:53,547 INFO L390 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 [2022-11-03 02:35:53,559 INFO L390 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 [2022-11-03 02:35:53,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:53,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:53,575 INFO L390 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 [2022-11-03 02:35:53,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:53,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:53,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:53,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:53,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:53,627 INFO L390 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 [2022-11-03 02:35:53,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:53,658 INFO L390 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 [2022-11-03 02:35:53,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:53,673 INFO L390 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 [2022-11-03 02:35:53,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:53,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:53,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:53,688 INFO L390 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 [2022-11-03 02:35:53,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:53,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:53,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:53,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:53,721 INFO L390 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 [2022-11-03 02:35:53,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:53,737 INFO L390 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 [2022-11-03 02:35:53,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:53,751 INFO L390 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 [2022-11-03 02:35:53,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:53,776 INFO L390 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 [2022-11-03 02:35:53,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:53,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:53,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:53,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:53,797 INFO L390 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 [2022-11-03 02:35:53,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:53,816 INFO L390 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 [2022-11-03 02:35:53,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:53,850 INFO L390 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 [2022-11-03 02:35:53,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:53,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:53,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:53,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:53,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:53,871 INFO L390 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 [2022-11-03 02:35:53,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:53,902 INFO L390 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 [2022-11-03 02:35:54,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:54,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:54,142 INFO L356 Elim1Store]: treesize reduction 34, result has 41.4 percent of original size [2022-11-03 02:35:54,142 INFO L390 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 [2022-11-03 02:35:54,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:54,182 INFO L390 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 [2022-11-03 02:35:54,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:54,195 INFO L390 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 [2022-11-03 02:35:54,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:54,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:54,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:54,212 INFO L390 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 [2022-11-03 02:35:54,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:54,246 INFO L390 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 [2022-11-03 02:35:54,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:54,264 INFO L390 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 [2022-11-03 02:35:54,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:54,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:54,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:54,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:54,285 INFO L390 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 [2022-11-03 02:35:54,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:54,312 INFO L390 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 [2022-11-03 02:35:54,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:54,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:54,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:54,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:54,343 INFO L390 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 [2022-11-03 02:35:54,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:54,369 INFO L390 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 [2022-11-03 02:35:54,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:54,414 INFO L390 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 [2022-11-03 02:35:54,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:54,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:54,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:54,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:54,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:54,440 INFO L390 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 [2022-11-03 02:35:54,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:54,461 INFO L390 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 [2022-11-03 02:35:54,510 INFO L390 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 [2022-11-03 02:35:54,518 INFO L390 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 [2022-11-03 02:35:54,533 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:35:54,540 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:35:54,547 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:35:54,560 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:35:54,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:54,568 INFO L390 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 [2022-11-03 02:35:54,578 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:35:54,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:54,594 INFO L390 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 [2022-11-03 02:35:54,602 INFO L390 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 [2022-11-03 02:35:54,612 INFO L390 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 [2022-11-03 02:35:54,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:54,641 INFO L390 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 [2022-11-03 02:35:54,653 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:35:54,666 INFO L356 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-11-03 02:35:54,666 INFO L390 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 [2022-11-03 02:35:54,682 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:35:54,699 INFO L356 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-11-03 02:35:54,700 INFO L390 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 [2022-11-03 02:35:54,760 INFO L390 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 [2022-11-03 02:35:54,768 INFO L390 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 [2022-11-03 02:35:54,783 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:35:54,790 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:35:54,796 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:35:54,811 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:35:54,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:54,821 INFO L390 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 [2022-11-03 02:35:54,830 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:35:54,846 INFO L390 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 [2022-11-03 02:35:54,856 INFO L390 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 [2022-11-03 02:35:54,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:54,868 INFO L390 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 [2022-11-03 02:35:54,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:54,897 INFO L390 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 [2022-11-03 02:35:54,907 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:35:54,923 INFO L356 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-11-03 02:35:54,924 INFO L390 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 [2022-11-03 02:35:54,964 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:35:54,980 INFO L356 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-11-03 02:35:54,980 INFO L390 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 [2022-11-03 02:35:55,095 INFO L390 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 [2022-11-03 02:35:55,112 INFO L390 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 [2022-11-03 02:35:55,125 INFO L390 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 [2022-11-03 02:35:55,231 INFO L390 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 [2022-11-03 02:35:55,241 INFO L390 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 [2022-11-03 02:35:55,256 INFO L390 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 [2022-11-03 02:35:55,359 INFO L390 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 [2022-11-03 02:35:55,372 INFO L390 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 [2022-11-03 02:35:55,381 INFO L390 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 [2022-11-03 02:35:56,099 INFO L390 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 [2022-11-03 02:35:56,106 INFO L390 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 [2022-11-03 02:35:56,119 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:35:56,137 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:35:56,144 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:35:56,197 INFO L390 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 [2022-11-03 02:35:56,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:56,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:56,222 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:35:56,228 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 02:35:56,229 INFO L390 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 [2022-11-03 02:35:56,256 INFO L390 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 [2022-11-03 02:35:56,306 INFO L390 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 [2022-11-03 02:35:56,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:56,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:35:56,320 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:35:56,326 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 02:35:56,327 INFO L390 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 [2022-11-03 02:35:56,354 INFO L390 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 [2022-11-03 02:35:56,382 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 02:36:00,846 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '6657#(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 [2022-11-03 02:36:00,846 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 02:36:00,846 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 02:36:00,846 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 14, 16] total 45 [2022-11-03 02:36:00,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528692198] [2022-11-03 02:36:00,847 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 02:36:00,847 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2022-11-03 02:36:00,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:36:00,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2022-11-03 02:36:00,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=219, Invalid=2564, Unknown=9, NotChecked=990, Total=3782 [2022-11-03 02:36:00,849 INFO L87 Difference]: Start difference. First operand 55 states and 58 transitions. Second operand has 46 states, 45 states have (on average 2.1555555555555554) internal successors, (97), 46 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) [2022-11-03 02:36:01,204 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 4))) (and (= |c_ULTIMATE.start_dll_create_~head~0#1.offset| 0) (= |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 0) (= (select |c_#valid| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) 1) (= (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) .cse0) |c_ULTIMATE.start_dll_create_~head~0#1.base|) (not (= |c_ULTIMATE.start_dll_create_~new_head~0#1.base| |c_ULTIMATE.start_dll_create_~head~0#1.base|)) (= (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) .cse0) |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|) (forall ((v_ArrVal_2007 (Array Int Int)) (v_ArrVal_2004 (Array Int Int)) (|v_ULTIMATE.start_dll_update_at_~head#1.offset_83| Int) (v_ArrVal_2005 Int)) (or (let ((.cse2 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_2004))) (let ((.cse3 (store (select .cse2 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_83| v_ArrVal_2005))) (let ((.cse1 (select .cse3 .cse0))) (= .cse1 (select (select (store (store .cse2 |c_ULTIMATE.start_dll_create_~new_head~0#1.base| .cse3) .cse1 v_ArrVal_2007) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) .cse0))))) (< |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_83|))) (= (select |c_#valid| |c_ULTIMATE.start_dll_create_~head~0#1.base|) 1) (= |c_ULTIMATE.start_dll_create_~head~0#1.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|))) is different from false [2022-11-03 02:36:01,208 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 4))) (and (= |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 0) (= (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) .cse0) |c_ULTIMATE.start_dll_create_~head~0#1.base|) (not (= |c_ULTIMATE.start_dll_create_~new_head~0#1.base| |c_ULTIMATE.start_dll_create_~head~0#1.base|)) (= (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) .cse0) |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|) (forall ((v_ArrVal_2007 (Array Int Int)) (v_ArrVal_2004 (Array Int Int)) (|v_ULTIMATE.start_dll_update_at_~head#1.offset_83| Int) (v_ArrVal_2005 Int)) (or (let ((.cse2 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_2004))) (let ((.cse3 (store (select .cse2 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_83| v_ArrVal_2005))) (let ((.cse1 (select .cse3 .cse0))) (= .cse1 (select (select (store (store .cse2 |c_ULTIMATE.start_dll_create_~new_head~0#1.base| .cse3) .cse1 v_ArrVal_2007) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) .cse0))))) (< |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_83|))))) is different from false [2022-11-03 02:36:01,213 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse3 (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|)) (.cse2 (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 4))) (and (forall ((v_ArrVal_2007 (Array Int Int)) (|v_ULTIMATE.start_dll_update_at_~head#1.offset_83| Int) (v_ArrVal_2005 Int)) (or (let ((.cse1 (store .cse3 |v_ULTIMATE.start_dll_update_at_~head#1.offset_83| v_ArrVal_2005))) (let ((.cse0 (select .cse1 .cse2))) (= .cse0 (select (select (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| .cse1) .cse0 v_ArrVal_2007) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) .cse2)))) (< |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_83|))) (= |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 0) (not (= (select .cse3 .cse2) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|)) (= (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) .cse2) |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|))) is different from false [2022-11-03 02:36:01,216 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse1 (+ |c_ULTIMATE.start_dll_create_~head~0#1.offset| 4)) (.cse0 (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base|))) (and (= |c_ULTIMATE.start_dll_create_~head~0#1.offset| 0) (not (= (select .cse0 .cse1) |c_ULTIMATE.start_dll_create_~head~0#1.base|)) (= |c_ULTIMATE.start_dll_create_~head~0#1.offset| (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~head~0#1.base|) 4)) (forall ((v_ArrVal_2007 (Array Int Int)) (|v_ULTIMATE.start_dll_update_at_~head#1.offset_83| Int) (v_ArrVal_2005 Int)) (or (< |c_ULTIMATE.start_dll_create_~head~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_83|) (let ((.cse2 (store .cse0 |v_ULTIMATE.start_dll_update_at_~head#1.offset_83| v_ArrVal_2005))) (let ((.cse3 (select .cse2 .cse1))) (= (select (select (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base| .cse2) .cse3 v_ArrVal_2007) |c_ULTIMATE.start_dll_create_~head~0#1.base|) .cse1) .cse3))))))) is different from false [2022-11-03 02:36:01,220 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse3 (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~s~0#1.base|)) (.cse2 (+ |c_ULTIMATE.start_main_~s~0#1.offset| 4))) (and (forall ((v_ArrVal_2007 (Array Int Int)) (|v_ULTIMATE.start_dll_update_at_~head#1.offset_83| Int) (v_ArrVal_2005 Int)) (or (< |c_ULTIMATE.start_main_~s~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_83|) (let ((.cse0 (store .cse3 |v_ULTIMATE.start_dll_update_at_~head#1.offset_83| v_ArrVal_2005))) (let ((.cse1 (select .cse0 .cse2))) (= (select (select (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~s~0#1.base| .cse0) .cse1 v_ArrVal_2007) |c_ULTIMATE.start_main_~s~0#1.base|) .cse2) .cse1))))) (= |c_ULTIMATE.start_main_~s~0#1.offset| (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~s~0#1.base|) 4)) (= |c_ULTIMATE.start_main_~i~0#1| 0) (= |c_ULTIMATE.start_main_~s~0#1.offset| 0) (not (= |c_ULTIMATE.start_main_~s~0#1.base| (select .cse3 .cse2))))) is different from false [2022-11-03 02:36:02,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:36:02,325 INFO L93 Difference]: Finished difference Result 76 states and 77 transitions. [2022-11-03 02:36:02,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-11-03 02:36:02,326 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 45 states have (on average 2.1555555555555554) internal successors, (97), 46 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 [2022-11-03 02:36:02,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:36:02,327 INFO L225 Difference]: With dead ends: 76 [2022-11-03 02:36:02,327 INFO L226 Difference]: Without dead ends: 76 [2022-11-03 02:36:02,330 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 65 SyntacticMatches, 1 SemanticMatches, 79 ConstructedPredicates, 14 IntricatePredicates, 0 DeprecatedPredicates, 1129 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=413, Invalid=4051, Unknown=14, NotChecked=2002, Total=6480 [2022-11-03 02:36:02,331 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 288 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 667 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 288 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 1283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 667 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 547 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-03 02:36:02,331 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [288 Valid, 232 Invalid, 1283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 667 Invalid, 0 Unknown, 547 Unchecked, 0.5s Time] [2022-11-03 02:36:02,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2022-11-03 02:36:02,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 54. [2022-11-03 02:36:02,333 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) [2022-11-03 02:36:02,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 57 transitions. [2022-11-03 02:36:02,333 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 57 transitions. Word has length 35 [2022-11-03 02:36:02,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:36:02,334 INFO L495 AbstractCegarLoop]: Abstraction has 54 states and 57 transitions. [2022-11-03 02:36:02,334 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 45 states have (on average 2.1555555555555554) internal successors, (97), 46 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) [2022-11-03 02:36:02,334 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 57 transitions. [2022-11-03 02:36:02,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-11-03 02:36:02,335 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:36:02,335 INFO L195 NwaCegarLoop]: 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] [2022-11-03 02:36:02,366 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_654ffbce-fddd-43d7-97a9-56350347d9c0/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-11-03 02:36:02,554 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_654ffbce-fddd-43d7-97a9-56350347d9c0/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:36:02,555 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 20 more)] === [2022-11-03 02:36:02,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:36:02,555 INFO L85 PathProgramCache]: Analyzing trace with hash -603883123, now seen corresponding path program 1 times [2022-11-03 02:36:02,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:36:02,555 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121491834] [2022-11-03 02:36:02,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:36:02,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:36:02,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:36:04,004 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 2 proven. 17 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-03 02:36:04,004 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:36:04,004 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2121491834] [2022-11-03 02:36:04,004 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2121491834] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:36:04,004 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2027398554] [2022-11-03 02:36:04,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:36:04,004 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:36:04,005 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_654ffbce-fddd-43d7-97a9-56350347d9c0/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:36:04,005 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_654ffbce-fddd-43d7-97a9-56350347d9c0/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:36:04,007 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_654ffbce-fddd-43d7-97a9-56350347d9c0/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-11-03 02:36:04,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:36:04,240 INFO L263 TraceCheckSpWp]: Trace formula consists of 354 conjuncts, 65 conjunts are in the unsatisfiable core [2022-11-03 02:36:04,244 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:36:04,247 INFO L390 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 [2022-11-03 02:36:04,313 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-03 02:36:04,313 INFO L390 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 [2022-11-03 02:36:04,348 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:36:04,388 INFO L390 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 [2022-11-03 02:36:04,413 INFO L356 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-03 02:36:04,413 INFO L390 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 [2022-11-03 02:36:04,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:04,582 INFO L390 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 [2022-11-03 02:36:04,718 INFO L356 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-03 02:36:04,718 INFO L390 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 [2022-11-03 02:36:04,725 INFO L390 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 [2022-11-03 02:36:04,893 INFO L390 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 [2022-11-03 02:36:04,897 INFO L390 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 [2022-11-03 02:36:04,946 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 5 proven. 14 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-03 02:36:04,946 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:36:05,087 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:36:05,087 INFO L390 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 47 treesize of output 51 [2022-11-03 02:36:05,215 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:36:05,215 INFO L390 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 128 treesize of output 109 [2022-11-03 02:36:05,219 INFO L390 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 93 treesize of output 89 [2022-11-03 02:36:05,224 INFO L390 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 [2022-11-03 02:36:05,872 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_dll_update_at_~head#1.offset_91| Int) (v_ArrVal_2132 Int)) (or (< |c_ULTIMATE.start_main_~s~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_91|) (not (= (select (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~s~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_91| v_ArrVal_2132) (+ |c_ULTIMATE.start_main_~s~0#1.offset| 4)) |c_ULTIMATE.start_main_~s~0#1.base|)))) is different from false [2022-11-03 02:36:06,383 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_dll_update_at_~head#1.offset_91| Int) (v_ArrVal_2132 Int)) (or (< |c_ULTIMATE.start_dll_create_~head~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_91|) (not (= (select (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_91| v_ArrVal_2132) (+ |c_ULTIMATE.start_dll_create_~head~0#1.offset| 4)) |c_ULTIMATE.start_dll_create_~head~0#1.base|)))) is different from false [2022-11-03 02:36:06,819 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_dll_update_at_~head#1.offset_91| Int) (v_ArrVal_2132 Int)) (or (< |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_91|) (not (= |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (select (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_91| v_ArrVal_2132) (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 4)))))) is different from false [2022-11-03 02:36:06,828 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2129 (Array Int Int)) (|v_ULTIMATE.start_dll_update_at_~head#1.offset_91| Int) (v_ArrVal_2132 Int)) (or (< |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_91|) (not (= |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (select (store (select (store |c_#memory_$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_91| v_ArrVal_2132) (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 4)))))) is different from false [2022-11-03 02:36:06,844 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2129 (Array Int Int)) (|v_ULTIMATE.start_dll_update_at_~head#1.offset_91| Int) (v_ArrVal_2132 Int) (v_ArrVal_2127 Int)) (or (< |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_91|) (not (= |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (select (store (select (store (store |c_#memory_$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|) (+ 8 |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|) 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_91| v_ArrVal_2132) (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 4)))))) is different from false [2022-11-03 02:36:06,854 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:36:06,854 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 [2022-11-03 02:36:06,858 INFO L390 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 [2022-11-03 02:36:06,860 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:36:06,861 INFO L390 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 [2022-11-03 02:36:06,865 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:36:06,867 INFO L390 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 [2022-11-03 02:36:06,929 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 3 proven. 11 refuted. 0 times theorem prover too weak. 1 trivial. 6 not checked. [2022-11-03 02:36:06,929 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2027398554] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:36:06,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [44781404] [2022-11-03 02:36:06,931 INFO L159 IcfgInterpreter]: Started Sifa with 19 locations of interest [2022-11-03 02:36:06,931 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 02:36:06,931 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 02:36:06,932 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 02:36:06,932 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 02:36:06,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:06,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:06,961 INFO L390 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 [2022-11-03 02:36:06,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:06,979 INFO L390 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 [2022-11-03 02:36:06,989 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:36:06,996 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:36:07,012 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:36:07,020 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:36:07,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:07,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:07,035 INFO L390 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 [2022-11-03 02:36:07,056 INFO L390 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 [2022-11-03 02:36:07,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:07,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:07,068 INFO L390 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 [2022-11-03 02:36:07,077 INFO L390 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 [2022-11-03 02:36:07,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:07,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:07,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:07,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:07,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:07,129 INFO L390 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 [2022-11-03 02:36:07,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:07,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:07,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:07,166 INFO L390 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 [2022-11-03 02:36:07,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:07,194 INFO L390 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 [2022-11-03 02:36:07,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:07,207 INFO L390 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 [2022-11-03 02:36:07,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:07,231 INFO L390 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 [2022-11-03 02:36:07,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:07,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:07,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:07,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:07,249 INFO L390 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 [2022-11-03 02:36:07,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:07,263 INFO L390 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 [2022-11-03 02:36:07,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:07,287 INFO L390 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 [2022-11-03 02:36:07,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:07,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:07,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:07,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:07,302 INFO L390 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 [2022-11-03 02:36:07,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:07,315 INFO L390 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 [2022-11-03 02:36:07,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:07,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:07,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:07,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:07,353 INFO L390 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 [2022-11-03 02:36:07,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:07,366 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:36:07,367 INFO L390 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 [2022-11-03 02:36:07,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:07,383 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:36:07,384 INFO L390 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 [2022-11-03 02:36:07,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:07,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:07,586 INFO L356 Elim1Store]: treesize reduction 34, result has 41.4 percent of original size [2022-11-03 02:36:07,587 INFO L390 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 [2022-11-03 02:36:07,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:07,644 INFO L390 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 [2022-11-03 02:36:07,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:07,655 INFO L390 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 [2022-11-03 02:36:07,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:07,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:07,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:07,669 INFO L390 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 [2022-11-03 02:36:07,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:07,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:07,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:07,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:07,698 INFO L390 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 [2022-11-03 02:36:07,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:07,713 INFO L390 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 [2022-11-03 02:36:07,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:07,727 INFO L390 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 [2022-11-03 02:36:07,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:07,754 INFO L390 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 [2022-11-03 02:36:07,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:07,767 INFO L390 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 [2022-11-03 02:36:07,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:07,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:07,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:07,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:07,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:07,789 INFO L390 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 [2022-11-03 02:36:07,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:07,828 INFO L390 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 [2022-11-03 02:36:07,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:07,845 INFO L390 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 [2022-11-03 02:36:07,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:07,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:07,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:07,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:07,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:07,865 INFO L390 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 [2022-11-03 02:36:07,904 INFO L390 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 [2022-11-03 02:36:07,911 INFO L390 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 [2022-11-03 02:36:07,922 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:36:07,928 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:36:07,935 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:36:07,949 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:36:07,956 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:36:07,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:07,965 INFO L390 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 [2022-11-03 02:36:07,977 INFO L390 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 [2022-11-03 02:36:07,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:07,995 INFO L390 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 [2022-11-03 02:36:08,003 INFO L390 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 [2022-11-03 02:36:08,023 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:36:08,036 INFO L356 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-11-03 02:36:08,036 INFO L390 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 [2022-11-03 02:36:08,047 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:36:08,057 INFO L356 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-11-03 02:36:08,057 INFO L390 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 [2022-11-03 02:36:08,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:08,071 INFO L390 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 [2022-11-03 02:36:08,128 INFO L390 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 [2022-11-03 02:36:08,133 INFO L390 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 [2022-11-03 02:36:08,145 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:36:08,150 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:36:08,156 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:36:08,168 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:36:08,174 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:36:08,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:08,182 INFO L390 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 [2022-11-03 02:36:08,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:08,208 INFO L390 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 [2022-11-03 02:36:08,216 INFO L390 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 [2022-11-03 02:36:08,224 INFO L390 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 [2022-11-03 02:36:08,243 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:36:08,252 INFO L356 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-11-03 02:36:08,253 INFO L390 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 [2022-11-03 02:36:08,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:08,263 INFO L390 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 [2022-11-03 02:36:08,273 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:36:08,285 INFO L356 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-11-03 02:36:08,285 INFO L390 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 [2022-11-03 02:36:08,392 INFO L390 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 [2022-11-03 02:36:08,403 INFO L390 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 [2022-11-03 02:36:08,414 INFO L390 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 [2022-11-03 02:36:08,483 INFO L390 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 [2022-11-03 02:36:08,496 INFO L390 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 [2022-11-03 02:36:08,504 INFO L390 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 [2022-11-03 02:36:08,595 INFO L390 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 [2022-11-03 02:36:08,618 INFO L390 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 [2022-11-03 02:36:08,629 INFO L390 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 [2022-11-03 02:36:09,249 INFO L390 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 [2022-11-03 02:36:09,256 INFO L390 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 [2022-11-03 02:36:09,269 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:36:09,274 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:36:09,280 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:36:09,346 INFO L390 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 [2022-11-03 02:36:09,353 INFO L390 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 [2022-11-03 02:36:09,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:09,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:09,366 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:36:09,372 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 02:36:09,372 INFO L390 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 [2022-11-03 02:36:09,426 INFO L390 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 [2022-11-03 02:36:09,434 INFO L390 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 [2022-11-03 02:36:09,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:09,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:09,447 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:36:09,454 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 02:36:09,454 INFO L390 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 [2022-11-03 02:36:09,487 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 02:36:12,892 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '7087#(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 (not (<= (+ |ULTIMATE.start_dll_get_data_at_~head#1.offset| 4) (select |#length| |ULTIMATE.start_dll_get_data_at_~head#1.base|))) (not (<= 0 |ULTIMATE.start_dll_get_data_at_~head#1.offset|))) (<= |#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|) (<= |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 [2022-11-03 02:36:12,893 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 02:36:12,893 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 02:36:12,893 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 14, 16] total 39 [2022-11-03 02:36:12,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067138746] [2022-11-03 02:36:12,893 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 02:36:12,893 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2022-11-03 02:36:12,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:36:12,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2022-11-03 02:36:12,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=222, Invalid=2343, Unknown=5, NotChecked=510, Total=3080 [2022-11-03 02:36:12,895 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) [2022-11-03 02:36:13,678 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|)) (.cse1 (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 4))) (and (forall ((|v_ULTIMATE.start_dll_update_at_~head#1.offset_91| Int) (v_ArrVal_2132 Int)) (or (< |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_91|) (not (= |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (select (store .cse0 |v_ULTIMATE.start_dll_update_at_~head#1.offset_91| v_ArrVal_2132) .cse1))))) (= |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 0) (= (select .cse0 .cse1) |c_ULTIMATE.start_dll_create_~head~0#1.base|) (= (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) .cse1) 0) (not (= |c_ULTIMATE.start_dll_create_~new_head~0#1.base| |c_ULTIMATE.start_dll_create_~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_~head~0#1.base|) 1))) is different from false [2022-11-03 02:36:14,095 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse1 (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base|))) (let ((.cse0 (select .cse1 4))) (and (= |c_ULTIMATE.start_dll_create_~head~0#1.offset| 0) (= (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~head~0#1.base|) 4) 0) (<= 12 (select |c_#length| .cse0)) (forall ((|v_ULTIMATE.start_dll_update_at_~head#1.offset_91| Int) (v_ArrVal_2132 Int)) (or (< |c_ULTIMATE.start_dll_create_~head~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_91|) (not (= (select (store .cse1 |v_ULTIMATE.start_dll_update_at_~head#1.offset_91| v_ArrVal_2132) (+ |c_ULTIMATE.start_dll_create_~head~0#1.offset| 4)) |c_ULTIMATE.start_dll_create_~head~0#1.base|)))) (not (= .cse0 |c_ULTIMATE.start_dll_create_~head~0#1.base|))))) is different from false [2022-11-03 02:36:14,507 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse1 (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~s~0#1.base|))) (let ((.cse0 (select .cse1 4))) (and (not (= |c_ULTIMATE.start_main_~s~0#1.base| .cse0)) (= (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~s~0#1.base|) 4) 0) (forall ((|v_ULTIMATE.start_dll_update_at_~head#1.offset_91| Int) (v_ArrVal_2132 Int)) (or (< |c_ULTIMATE.start_main_~s~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_91|) (not (= (select (store .cse1 |v_ULTIMATE.start_dll_update_at_~head#1.offset_91| 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| 0) (<= 12 (select |c_#length| .cse0))))) is different from false [2022-11-03 02:36:15,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:36:15,165 INFO L93 Difference]: Finished difference Result 70 states and 75 transitions. [2022-11-03 02:36:15,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-03 02:36:15,166 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 [2022-11-03 02:36:15,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:36:15,166 INFO L225 Difference]: With dead ends: 70 [2022-11-03 02:36:15,167 INFO L226 Difference]: Without dead ends: 70 [2022-11-03 02:36:15,168 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 68 SyntacticMatches, 4 SemanticMatches, 68 ConstructedPredicates, 8 IntricatePredicates, 0 DeprecatedPredicates, 1133 ImplicationChecksByTransitivity, 7.7s TimeCoverageRelationStatistics Valid=353, Invalid=3453, Unknown=8, NotChecked=1016, Total=4830 [2022-11-03 02:36:15,168 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 94 mSDsluCounter, 604 mSDsCounter, 0 mSdLazyCounter, 652 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 469 SdHoareTripleChecker+Invalid, 1014 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 652 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 340 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-03 02:36:15,169 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 469 Invalid, 1014 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 652 Invalid, 0 Unknown, 340 Unchecked, 0.4s Time] [2022-11-03 02:36:15,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2022-11-03 02:36:15,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 52. [2022-11-03 02:36:15,170 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) [2022-11-03 02:36:15,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 55 transitions. [2022-11-03 02:36:15,171 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 55 transitions. Word has length 35 [2022-11-03 02:36:15,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:36:15,171 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 55 transitions. [2022-11-03 02:36:15,171 INFO L496 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) [2022-11-03 02:36:15,171 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 55 transitions. [2022-11-03 02:36:15,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-11-03 02:36:15,172 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:36:15,172 INFO L195 NwaCegarLoop]: 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] [2022-11-03 02:36:15,202 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_654ffbce-fddd-43d7-97a9-56350347d9c0/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-11-03 02:36:15,390 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_654ffbce-fddd-43d7-97a9-56350347d9c0/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:36:15,390 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 20 more)] === [2022-11-03 02:36:15,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:36:15,391 INFO L85 PathProgramCache]: Analyzing trace with hash -601804193, now seen corresponding path program 1 times [2022-11-03 02:36:15,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:36:15,391 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709770937] [2022-11-03 02:36:15,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:36:15,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:36:15,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:36:15,476 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-03 02:36:15,476 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:36:15,476 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [709770937] [2022-11-03 02:36:15,476 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [709770937] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:36:15,477 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1082301862] [2022-11-03 02:36:15,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:36:15,477 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:36:15,477 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_654ffbce-fddd-43d7-97a9-56350347d9c0/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:36:15,478 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_654ffbce-fddd-43d7-97a9-56350347d9c0/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:36:15,505 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_654ffbce-fddd-43d7-97a9-56350347d9c0/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-11-03 02:36:15,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:36:15,724 INFO L263 TraceCheckSpWp]: Trace formula consists of 354 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-03 02:36:15,725 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:36:15,740 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-03 02:36:15,740 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:36:15,761 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-03 02:36:15,761 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1082301862] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:36:15,761 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1111929164] [2022-11-03 02:36:15,762 INFO L159 IcfgInterpreter]: Started Sifa with 19 locations of interest [2022-11-03 02:36:15,763 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 02:36:15,763 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 02:36:15,763 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 02:36:15,764 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 02:36:15,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:15,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:15,787 INFO L390 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 [2022-11-03 02:36:15,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:15,810 INFO L390 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 [2022-11-03 02:36:15,818 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:36:15,826 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:36:15,843 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:36:15,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:15,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:15,878 INFO L390 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 [2022-11-03 02:36:15,888 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:36:15,903 INFO L390 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 [2022-11-03 02:36:15,911 INFO L390 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 [2022-11-03 02:36:15,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:15,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:15,922 INFO L390 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 [2022-11-03 02:36:15,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:15,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:15,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:15,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:15,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:15,980 INFO L390 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 [2022-11-03 02:36:16,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:16,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:16,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:16,018 INFO L390 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 [2022-11-03 02:36:16,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:16,030 INFO L390 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 [2022-11-03 02:36:16,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:16,042 INFO L390 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 [2022-11-03 02:36:16,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:16,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:16,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:16,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:16,076 INFO L390 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 [2022-11-03 02:36:16,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:16,089 INFO L390 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 [2022-11-03 02:36:16,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:16,103 INFO L390 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 [2022-11-03 02:36:16,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:16,129 INFO L390 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 [2022-11-03 02:36:16,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:16,145 INFO L390 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 [2022-11-03 02:36:16,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:16,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:16,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:16,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:16,165 INFO L390 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 [2022-11-03 02:36:16,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:16,211 INFO L390 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 [2022-11-03 02:36:16,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:16,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:16,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:16,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:16,231 INFO L390 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 [2022-11-03 02:36:16,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:16,246 INFO L390 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 [2022-11-03 02:36:16,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:16,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:16,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:16,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:16,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:16,432 INFO L390 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 [2022-11-03 02:36:16,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:16,467 INFO L390 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 [2022-11-03 02:36:16,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:16,480 INFO L390 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 [2022-11-03 02:36:16,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:16,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:16,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:16,494 INFO L390 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 [2022-11-03 02:36:16,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:16,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:16,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:16,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:16,521 INFO L390 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 [2022-11-03 02:36:16,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:16,535 INFO L390 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 [2022-11-03 02:36:16,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:16,549 INFO L390 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 [2022-11-03 02:36:16,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:16,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:16,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:16,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:16,581 INFO L390 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 [2022-11-03 02:36:16,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:16,595 INFO L390 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 [2022-11-03 02:36:16,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:16,609 INFO L390 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 [2022-11-03 02:36:16,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:16,647 INFO L390 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 [2022-11-03 02:36:16,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:16,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:16,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:16,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:16,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:16,667 INFO L390 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 [2022-11-03 02:36:16,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:16,681 INFO L390 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 [2022-11-03 02:36:16,882 INFO L390 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 [2022-11-03 02:36:16,891 INFO L390 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 [2022-11-03 02:36:16,907 INFO L390 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 [2022-11-03 02:36:16,988 INFO L390 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 [2022-11-03 02:36:17,000 INFO L390 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 [2022-11-03 02:36:17,009 INFO L390 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 [2022-11-03 02:36:17,098 INFO L390 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 [2022-11-03 02:36:17,106 INFO L390 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 [2022-11-03 02:36:17,120 INFO L390 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 [2022-11-03 02:36:17,251 INFO L390 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 [2022-11-03 02:36:17,262 INFO L390 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 [2022-11-03 02:36:17,287 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:36:17,299 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:36:17,307 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:36:17,335 INFO L390 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 [2022-11-03 02:36:17,342 INFO L390 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 [2022-11-03 02:36:17,355 INFO L390 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 [2022-11-03 02:36:17,373 INFO L390 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 [2022-11-03 02:36:17,382 INFO L390 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 [2022-11-03 02:36:17,395 INFO L390 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 [2022-11-03 02:36:17,406 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 02:36:21,644 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '7469#(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|) (= |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|) (= 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 [2022-11-03 02:36:21,644 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 02:36:21,644 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 02:36:21,644 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 6 [2022-11-03 02:36:21,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249912268] [2022-11-03 02:36:21,644 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 02:36:21,645 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:36:21,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:36:21,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:36:21,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=372, Unknown=0, NotChecked=0, Total=462 [2022-11-03 02:36:21,646 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) [2022-11-03 02:36:21,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:36:21,716 INFO L93 Difference]: Finished difference Result 52 states and 54 transitions. [2022-11-03 02:36:21,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 02:36:21,717 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 [2022-11-03 02:36:21,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:36:21,717 INFO L225 Difference]: With dead ends: 52 [2022-11-03 02:36:21,717 INFO L226 Difference]: Without dead ends: 52 [2022-11-03 02:36:21,718 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 85 SyntacticMatches, 3 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 126 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=95, Invalid=411, Unknown=0, NotChecked=0, Total=506 [2022-11-03 02:36:21,718 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 25 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:36:21,719 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 81 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:36:21,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2022-11-03 02:36:21,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2022-11-03 02:36:21,720 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) [2022-11-03 02:36:21,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 54 transitions. [2022-11-03 02:36:21,721 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 54 transitions. Word has length 35 [2022-11-03 02:36:21,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:36:21,721 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 54 transitions. [2022-11-03 02:36:21,722 INFO L496 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) [2022-11-03 02:36:21,722 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 54 transitions. [2022-11-03 02:36:21,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-11-03 02:36:21,722 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:36:21,722 INFO L195 NwaCegarLoop]: 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] [2022-11-03 02:36:21,759 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_654ffbce-fddd-43d7-97a9-56350347d9c0/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2022-11-03 02:36:21,923 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_654ffbce-fddd-43d7-97a9-56350347d9c0/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2022-11-03 02:36:21,923 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 20 more)] === [2022-11-03 02:36:21,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:36:21,923 INFO L85 PathProgramCache]: Analyzing trace with hash -511042526, now seen corresponding path program 1 times [2022-11-03 02:36:21,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:36:21,924 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424624257] [2022-11-03 02:36:21,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:36:21,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:36:21,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:36:23,148 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 4 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:36:23,148 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:36:23,148 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1424624257] [2022-11-03 02:36:23,149 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1424624257] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:36:23,149 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [266954429] [2022-11-03 02:36:23,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:36:23,149 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:36:23,149 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_654ffbce-fddd-43d7-97a9-56350347d9c0/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:36:23,151 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_654ffbce-fddd-43d7-97a9-56350347d9c0/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:36:23,156 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_654ffbce-fddd-43d7-97a9-56350347d9c0/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-11-03 02:36:23,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:36:23,366 INFO L263 TraceCheckSpWp]: Trace formula consists of 365 conjuncts, 87 conjunts are in the unsatisfiable core [2022-11-03 02:36:23,369 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:36:23,371 INFO L390 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 [2022-11-03 02:36:23,406 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-03 02:36:23,406 INFO L390 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 [2022-11-03 02:36:23,434 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:36:23,467 INFO L390 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 [2022-11-03 02:36:23,483 INFO L356 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-03 02:36:23,483 INFO L390 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 [2022-11-03 02:36:23,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:23,620 INFO L390 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 [2022-11-03 02:36:23,779 INFO L356 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-03 02:36:23,782 INFO L390 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 [2022-11-03 02:36:23,788 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:36:23,791 INFO L390 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 [2022-11-03 02:36:24,020 INFO L390 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 [2022-11-03 02:36:24,033 INFO L390 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 [2022-11-03 02:36:24,062 INFO L390 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 [2022-11-03 02:36:24,090 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:36:24,090 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:36:24,364 INFO L390 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 [2022-11-03 02:36:24,378 INFO L390 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 [2022-11-03 02:36:24,393 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (+ |c_ULTIMATE.start_main_~s~0#1.offset| 4)) (.cse1 (+ |c_ULTIMATE.start_main_~len~0#1| 1))) (and (forall ((v_ArrVal_2377 (Array Int Int))) (= (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_update_at_~head#1.base| v_ArrVal_2377) |c_ULTIMATE.start_main_~s~0#1.base|) .cse0) |c_ULTIMATE.start_dll_update_at_~head#1.base|)) (<= |c_ULTIMATE.start_dll_update_at_~data#1| .cse1) (forall ((v_ArrVal_2378 (Array Int Int))) (= (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_update_at_~head#1.base| v_ArrVal_2378) |c_ULTIMATE.start_main_~s~0#1.base|) .cse0) |c_ULTIMATE.start_dll_update_at_~head#1.offset|)) (<= .cse1 |c_ULTIMATE.start_dll_update_at_~data#1|))) is different from false [2022-11-03 02:36:24,413 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:36:24,413 INFO L390 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 43 [2022-11-03 02:36:24,418 INFO L390 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 [2022-11-03 02:36:26,569 WARN L833 $PredicateComparison]: unable to prove that (and (forall ((|v_ULTIMATE.start_dll_update_at_~head#1.offset_103| Int)) (or (< |c_ULTIMATE.start_main_~s~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_103|) (forall ((v_ArrVal_2374 Int)) (not (= (select (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~s~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_103| v_ArrVal_2374) (+ |c_ULTIMATE.start_main_~s~0#1.offset| 4)) |c_ULTIMATE.start_main_~s~0#1.base|))))) (= |c_ULTIMATE.start_main_~i~0#1| 0)) is different from false [2022-11-03 02:36:27,085 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2374 Int) (|v_ULTIMATE.start_dll_update_at_~head#1.offset_103| Int)) (or (< |c_ULTIMATE.start_dll_create_~head~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_103|) (not (= (select (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_103| v_ArrVal_2374) (+ |c_ULTIMATE.start_dll_create_~head~0#1.offset| 4)) |c_ULTIMATE.start_dll_create_~head~0#1.base|)))) is different from false [2022-11-03 02:36:27,568 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2374 Int) (|v_ULTIMATE.start_dll_update_at_~head#1.offset_103| Int)) (or (< |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_103|) (not (= (select (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_103| v_ArrVal_2374) (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 4)) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|)))) is different from false [2022-11-03 02:36:27,579 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2374 Int) (v_ArrVal_2373 (Array Int Int)) (|v_ULTIMATE.start_dll_update_at_~head#1.offset_103| Int)) (or (< |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_103|) (not (= (select (store (select (store |c_#memory_$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_103| v_ArrVal_2374) (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 4)) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|)))) is different from false [2022-11-03 02:36:27,605 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2371 Int) (v_ArrVal_2374 Int) (v_ArrVal_2373 (Array Int Int)) (|v_ULTIMATE.start_dll_update_at_~head#1.offset_103| Int)) (or (not (= |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (select (store (select (store (store |c_#memory_$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|) (+ 8 |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|) 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_103| 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_103|))) is different from false [2022-11-03 02:36:27,619 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:36:27,619 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 [2022-11-03 02:36:27,624 INFO L390 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 [2022-11-03 02:36:27,627 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:36:27,628 INFO L390 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 [2022-11-03 02:36:27,631 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:36:27,632 INFO L390 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 [2022-11-03 02:36:27,720 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 9 not checked. [2022-11-03 02:36:27,720 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [266954429] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:36:27,720 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [968501830] [2022-11-03 02:36:27,722 INFO L159 IcfgInterpreter]: Started Sifa with 20 locations of interest [2022-11-03 02:36:27,722 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 02:36:27,722 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 02:36:27,722 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 02:36:27,723 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 02:36:27,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:27,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:27,748 INFO L390 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 [2022-11-03 02:36:27,771 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:36:27,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:27,782 INFO L390 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 [2022-11-03 02:36:27,793 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:36:27,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:27,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:27,813 INFO L390 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 [2022-11-03 02:36:27,825 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:36:27,835 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:36:27,855 INFO L390 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 [2022-11-03 02:36:27,869 INFO L390 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 [2022-11-03 02:36:27,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:27,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:27,884 INFO L390 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 [2022-11-03 02:36:27,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:27,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:27,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:27,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:27,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:27,937 INFO L390 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 [2022-11-03 02:36:27,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:27,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:27,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:27,967 INFO L390 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 [2022-11-03 02:36:27,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:27,981 INFO L390 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 [2022-11-03 02:36:27,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:27,999 INFO L390 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 [2022-11-03 02:36:28,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:28,042 INFO L390 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 [2022-11-03 02:36:28,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:28,057 INFO L390 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 [2022-11-03 02:36:28,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:28,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:28,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:28,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:28,075 INFO L390 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 [2022-11-03 02:36:28,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:28,099 INFO L390 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 [2022-11-03 02:36:28,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:28,114 INFO L390 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 [2022-11-03 02:36:28,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:28,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:28,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:28,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:28,136 INFO L390 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 [2022-11-03 02:36:28,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:28,179 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:36:28,180 INFO L390 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 [2022-11-03 02:36:28,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:28,199 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:36:28,200 INFO L390 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 [2022-11-03 02:36:28,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:28,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:28,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:28,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:28,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:28,222 INFO L390 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 [2022-11-03 02:36:28,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:28,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:28,457 INFO L356 Elim1Store]: treesize reduction 34, result has 41.4 percent of original size [2022-11-03 02:36:28,458 INFO L390 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 [2022-11-03 02:36:28,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:28,512 INFO L390 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 [2022-11-03 02:36:28,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:28,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:28,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:28,532 INFO L390 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 [2022-11-03 02:36:28,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:28,547 INFO L390 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 [2022-11-03 02:36:28,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:28,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:28,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:28,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:28,576 INFO L390 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 [2022-11-03 02:36:28,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:28,591 INFO L390 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 [2022-11-03 02:36:28,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:28,606 INFO L390 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 [2022-11-03 02:36:28,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:28,639 INFO L390 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 [2022-11-03 02:36:28,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:28,655 INFO L390 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 [2022-11-03 02:36:28,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:28,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:28,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:28,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:28,678 INFO L390 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 [2022-11-03 02:36:28,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:28,722 INFO L390 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 [2022-11-03 02:36:28,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:28,744 INFO L390 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 [2022-11-03 02:36:28,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:28,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:28,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:28,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:28,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:28,765 INFO L390 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 [2022-11-03 02:36:28,810 INFO L390 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 [2022-11-03 02:36:28,818 INFO L390 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 [2022-11-03 02:36:28,831 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:36:28,838 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:36:28,847 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:36:28,860 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:36:28,867 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:36:28,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:28,893 INFO L390 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 [2022-11-03 02:36:28,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:28,912 INFO L390 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 [2022-11-03 02:36:28,920 INFO L390 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 [2022-11-03 02:36:28,933 INFO L390 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 [2022-11-03 02:36:28,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:28,962 INFO L390 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 [2022-11-03 02:36:28,973 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:36:28,986 INFO L356 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-11-03 02:36:28,986 INFO L390 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 [2022-11-03 02:36:28,999 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:36:29,016 INFO L356 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-11-03 02:36:29,017 INFO L390 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 [2022-11-03 02:36:29,081 INFO L390 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 [2022-11-03 02:36:29,089 INFO L390 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 [2022-11-03 02:36:29,106 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:36:29,113 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:36:29,137 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:36:29,151 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:36:29,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:29,162 INFO L390 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 [2022-11-03 02:36:29,170 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:36:29,185 INFO L390 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 [2022-11-03 02:36:29,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:29,195 INFO L390 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 [2022-11-03 02:36:29,206 INFO L390 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 [2022-11-03 02:36:29,233 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:36:29,245 INFO L356 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-11-03 02:36:29,245 INFO L390 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 [2022-11-03 02:36:29,257 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:36:29,272 INFO L356 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-11-03 02:36:29,273 INFO L390 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 [2022-11-03 02:36:29,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:29,289 INFO L390 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 [2022-11-03 02:36:29,410 INFO L390 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 [2022-11-03 02:36:29,421 INFO L390 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 [2022-11-03 02:36:29,432 INFO L390 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 [2022-11-03 02:36:29,532 INFO L390 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 [2022-11-03 02:36:29,547 INFO L390 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 [2022-11-03 02:36:29,556 INFO L390 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 [2022-11-03 02:36:29,658 INFO L390 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 [2022-11-03 02:36:29,672 INFO L390 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 [2022-11-03 02:36:29,682 INFO L390 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 [2022-11-03 02:36:30,468 INFO L390 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 [2022-11-03 02:36:30,476 INFO L390 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 [2022-11-03 02:36:30,492 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:36:30,499 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:36:30,505 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:36:30,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:30,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:30,579 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:36:30,585 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 02:36:30,586 INFO L390 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 [2022-11-03 02:36:30,614 INFO L390 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 [2022-11-03 02:36:30,633 INFO L390 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 [2022-11-03 02:36:30,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:30,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:30,684 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:36:30,690 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 02:36:30,690 INFO L390 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 [2022-11-03 02:36:30,720 INFO L390 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 [2022-11-03 02:36:30,734 INFO L390 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 [2022-11-03 02:36:30,758 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 02:36:34,860 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '7854#(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|) (<= |#NULL.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_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|) (<= |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|) (= 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 [2022-11-03 02:36:34,860 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 02:36:34,860 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 02:36:34,860 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 19, 20] total 47 [2022-11-03 02:36:34,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999441297] [2022-11-03 02:36:34,861 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 02:36:34,861 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2022-11-03 02:36:34,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:36:34,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2022-11-03 02:36:34,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=229, Invalid=2981, Unknown=6, NotChecked=690, Total=3906 [2022-11-03 02:36:34,863 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) [2022-11-03 02:36:35,786 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse1 (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|)) (.cse2 (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 4))) (let ((.cse0 (select .cse1 .cse2))) (and (= |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 0) (= (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|)) (= .cse0 |c_ULTIMATE.start_dll_create_~head~0#1.base|) (forall ((v_ArrVal_2374 Int) (|v_ULTIMATE.start_dll_update_at_~head#1.offset_103| Int)) (or (< |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_103|) (not (= (select (store .cse1 |v_ULTIMATE.start_dll_update_at_~head#1.offset_103| v_ArrVal_2374) .cse2) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|)))) (not (= |c_ULTIMATE.start_dll_create_~new_head~0#1.base| |c_ULTIMATE.start_dll_create_~head~0#1.base|)) (= (select |c_#valid| |c_ULTIMATE.start_dll_create_~head~0#1.base|) 1)))) is different from false [2022-11-03 02:36:36,231 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base|))) (and (= |c_ULTIMATE.start_dll_create_~head~0#1.offset| 0) (forall ((v_ArrVal_2374 Int) (|v_ULTIMATE.start_dll_update_at_~head#1.offset_103| Int)) (or (< |c_ULTIMATE.start_dll_create_~head~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_103|) (not (= (select (store .cse0 |v_ULTIMATE.start_dll_update_at_~head#1.offset_103| v_ArrVal_2374) (+ |c_ULTIMATE.start_dll_create_~head~0#1.offset| 4)) |c_ULTIMATE.start_dll_create_~head~0#1.base|)))) (not (= (select .cse0 4) |c_ULTIMATE.start_dll_create_~head~0#1.base|)) (= (select |c_#valid| |c_ULTIMATE.start_dll_create_~head~0#1.base|) 1))) is different from false [2022-11-03 02:36:36,680 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~s~0#1.base|))) (and (not (= |c_ULTIMATE.start_main_~s~0#1.base| (select .cse0 4))) (forall ((|v_ULTIMATE.start_dll_update_at_~head#1.offset_103| Int)) (or (< |c_ULTIMATE.start_main_~s~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_103|) (forall ((v_ArrVal_2374 Int)) (not (= (select (store .cse0 |v_ULTIMATE.start_dll_update_at_~head#1.offset_103| v_ArrVal_2374) (+ |c_ULTIMATE.start_main_~s~0#1.offset| 4)) |c_ULTIMATE.start_main_~s~0#1.base|))))) (= |c_ULTIMATE.start_main_~i~0#1| 0) (= |c_ULTIMATE.start_main_~s~0#1.offset| 0))) is different from false [2022-11-03 02:36:37,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:36:37,942 INFO L93 Difference]: Finished difference Result 50 states and 52 transitions. [2022-11-03 02:36:37,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-11-03 02:36:37,943 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 [2022-11-03 02:36:37,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:36:37,944 INFO L225 Difference]: With dead ends: 50 [2022-11-03 02:36:37,944 INFO L226 Difference]: Without dead ends: 50 [2022-11-03 02:36:37,946 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 66 SyntacticMatches, 7 SemanticMatches, 78 ConstructedPredicates, 9 IntricatePredicates, 0 DeprecatedPredicates, 1419 ImplicationChecksByTransitivity, 10.8s TimeCoverageRelationStatistics Valid=400, Invalid=4597, Unknown=9, NotChecked=1314, Total=6320 [2022-11-03 02:36:37,947 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 119 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 597 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 240 SdHoareTripleChecker+Invalid, 881 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 597 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 255 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-03 02:36:37,947 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 240 Invalid, 881 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 597 Invalid, 0 Unknown, 255 Unchecked, 0.5s Time] [2022-11-03 02:36:37,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2022-11-03 02:36:37,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2022-11-03 02:36:37,949 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) [2022-11-03 02:36:37,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 52 transitions. [2022-11-03 02:36:37,949 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 52 transitions. Word has length 37 [2022-11-03 02:36:37,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:36:37,950 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 52 transitions. [2022-11-03 02:36:37,950 INFO L496 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) [2022-11-03 02:36:37,950 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 52 transitions. [2022-11-03 02:36:37,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-11-03 02:36:37,951 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:36:37,951 INFO L195 NwaCegarLoop]: 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] [2022-11-03 02:36:37,999 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_654ffbce-fddd-43d7-97a9-56350347d9c0/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2022-11-03 02:36:38,152 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_654ffbce-fddd-43d7-97a9-56350347d9c0/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2022-11-03 02:36:38,152 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr17REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 20 more)] === [2022-11-03 02:36:38,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:36:38,152 INFO L85 PathProgramCache]: Analyzing trace with hash -1484291250, now seen corresponding path program 1 times [2022-11-03 02:36:38,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:36:38,153 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560614389] [2022-11-03 02:36:38,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:36:38,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:36:38,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:36:38,403 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-03 02:36:38,404 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:36:38,404 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560614389] [2022-11-03 02:36:38,404 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1560614389] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:36:38,404 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:36:38,404 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 02:36:38,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544659633] [2022-11-03 02:36:38,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:36:38,405 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:36:38,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:36:38,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:36:38,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:36:38,407 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) [2022-11-03 02:36:38,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:36:38,579 INFO L93 Difference]: Finished difference Result 56 states and 56 transitions. [2022-11-03 02:36:38,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 02:36:38,580 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 [2022-11-03 02:36:38,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:36:38,580 INFO L225 Difference]: With dead ends: 56 [2022-11-03 02:36:38,581 INFO L226 Difference]: Without dead ends: 56 [2022-11-03 02:36:38,581 INFO L412 NwaCegarLoop]: 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 [2022-11-03 02:36:38,581 INFO L413 NwaCegarLoop]: 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 [2022-11-03 02:36:38,582 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 12 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:36:38,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2022-11-03 02:36:38,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 51. [2022-11-03 02:36:38,583 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) [2022-11-03 02:36:38,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 52 transitions. [2022-11-03 02:36:38,584 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 52 transitions. Word has length 39 [2022-11-03 02:36:38,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:36:38,584 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 52 transitions. [2022-11-03 02:36:38,584 INFO L496 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) [2022-11-03 02:36:38,584 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 52 transitions. [2022-11-03 02:36:38,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-11-03 02:36:38,585 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:36:38,585 INFO L195 NwaCegarLoop]: 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] [2022-11-03 02:36:38,585 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-11-03 02:36:38,585 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 20 more)] === [2022-11-03 02:36:38,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:36:38,586 INFO L85 PathProgramCache]: Analyzing trace with hash -1484289963, now seen corresponding path program 1 times [2022-11-03 02:36:38,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:36:38,586 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1930306712] [2022-11-03 02:36:38,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:36:38,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:36:38,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:36:38,702 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-03 02:36:38,703 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:36:38,703 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1930306712] [2022-11-03 02:36:38,703 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1930306712] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:36:38,703 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:36:38,703 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 02:36:38,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055886263] [2022-11-03 02:36:38,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:36:38,704 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:36:38,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:36:38,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:36:38,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:36:38,705 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) [2022-11-03 02:36:38,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:36:38,836 INFO L93 Difference]: Finished difference Result 54 states and 54 transitions. [2022-11-03 02:36:38,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 02:36:38,836 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 [2022-11-03 02:36:38,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:36:38,837 INFO L225 Difference]: With dead ends: 54 [2022-11-03 02:36:38,837 INFO L226 Difference]: Without dead ends: 54 [2022-11-03 02:36:38,837 INFO L412 NwaCegarLoop]: 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 [2022-11-03 02:36:38,838 INFO L413 NwaCegarLoop]: 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 [2022-11-03 02:36:38,838 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 22 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:36:38,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2022-11-03 02:36:38,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 51. [2022-11-03 02:36:38,840 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) [2022-11-03 02:36:38,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 51 transitions. [2022-11-03 02:36:38,840 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 51 transitions. Word has length 39 [2022-11-03 02:36:38,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:36:38,840 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 51 transitions. [2022-11-03 02:36:38,841 INFO L496 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) [2022-11-03 02:36:38,841 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 51 transitions. [2022-11-03 02:36:38,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-11-03 02:36:38,841 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:36:38,841 INFO L195 NwaCegarLoop]: 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] [2022-11-03 02:36:38,841 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-11-03 02:36:38,841 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 20 more)] === [2022-11-03 02:36:38,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:36:38,842 INFO L85 PathProgramCache]: Analyzing trace with hash -474724348, now seen corresponding path program 1 times [2022-11-03 02:36:38,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:36:38,842 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466803726] [2022-11-03 02:36:38,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:36:38,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:36:38,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:36:38,982 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-03 02:36:38,982 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:36:38,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [466803726] [2022-11-03 02:36:38,982 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [466803726] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:36:38,982 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:36:38,983 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 02:36:38,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132031921] [2022-11-03 02:36:38,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:36:38,983 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:36:38,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:36:38,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:36:38,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:36:38,984 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) [2022-11-03 02:36:39,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:36:39,102 INFO L93 Difference]: Finished difference Result 52 states and 52 transitions. [2022-11-03 02:36:39,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 02:36:39,103 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 [2022-11-03 02:36:39,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:36:39,103 INFO L225 Difference]: With dead ends: 52 [2022-11-03 02:36:39,103 INFO L226 Difference]: Without dead ends: 52 [2022-11-03 02:36:39,103 INFO L412 NwaCegarLoop]: 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 [2022-11-03 02:36:39,104 INFO L413 NwaCegarLoop]: 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 [2022-11-03 02:36:39,104 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 12 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:36:39,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2022-11-03 02:36:39,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2022-11-03 02:36:39,106 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) [2022-11-03 02:36:39,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 52 transitions. [2022-11-03 02:36:39,106 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 52 transitions. Word has length 41 [2022-11-03 02:36:39,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:36:39,106 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 52 transitions. [2022-11-03 02:36:39,106 INFO L496 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) [2022-11-03 02:36:39,107 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 52 transitions. [2022-11-03 02:36:39,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-11-03 02:36:39,107 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:36:39,107 INFO L195 NwaCegarLoop]: 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] [2022-11-03 02:36:39,107 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-11-03 02:36:39,107 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr16REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 20 more)] === [2022-11-03 02:36:39,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:36:39,108 INFO L85 PathProgramCache]: Analyzing trace with hash 814425932, now seen corresponding path program 1 times [2022-11-03 02:36:39,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:36:39,108 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12756551] [2022-11-03 02:36:39,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:36:39,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:36:39,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:36:40,408 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 5 proven. 12 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-03 02:36:40,408 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:36:40,409 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12756551] [2022-11-03 02:36:40,409 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [12756551] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:36:40,409 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1122256874] [2022-11-03 02:36:40,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:36:40,409 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:36:40,409 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_654ffbce-fddd-43d7-97a9-56350347d9c0/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:36:40,411 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_654ffbce-fddd-43d7-97a9-56350347d9c0/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:36:40,426 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_654ffbce-fddd-43d7-97a9-56350347d9c0/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2022-11-03 02:36:40,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:36:40,742 INFO L263 TraceCheckSpWp]: Trace formula consists of 398 conjuncts, 67 conjunts are in the unsatisfiable core [2022-11-03 02:36:40,745 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:36:40,748 INFO L390 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 [2022-11-03 02:36:40,794 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-03 02:36:40,795 INFO L390 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 [2022-11-03 02:36:40,841 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:36:40,883 INFO L390 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 [2022-11-03 02:36:40,910 INFO L356 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-03 02:36:40,911 INFO L390 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 [2022-11-03 02:36:41,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:41,097 INFO L390 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 [2022-11-03 02:36:41,206 INFO L356 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-03 02:36:41,207 INFO L390 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 [2022-11-03 02:36:41,310 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:36:41,311 INFO L390 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 21 [2022-11-03 02:36:41,384 INFO L356 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-03 02:36:41,384 INFO L390 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 16 treesize of output 18 [2022-11-03 02:36:41,388 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 2 proven. 15 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-03 02:36:41,388 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:36:41,513 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:36:41,513 INFO L390 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 [2022-11-03 02:36:41,529 WARN L833 $PredicateComparison]: unable to prove that (and (forall ((v_prenex_9 (Array Int Int))) (not (= |c_ULTIMATE.start_main_~s~0#1.base| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_update_at_~head#1.base| v_prenex_9) |c_ULTIMATE.start_main_~s~0#1.base|) 4)))) (forall ((v_ArrVal_2681 (Array Int Int))) (= (select (select (store |c_#memory_$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_dll_update_at_~head#1.base|))) is different from false [2022-11-03 02:36:41,541 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_update_at_~head#1.base|) (+ |c_ULTIMATE.start_dll_update_at_~head#1.offset| 4)))) (and (forall ((v_prenex_9 (Array Int Int))) (not (= (select (select (store |c_#memory_$Pointer$.base| .cse0 v_prenex_9) |c_ULTIMATE.start_main_~s~0#1.base|) 4) |c_ULTIMATE.start_main_~s~0#1.base|))) (forall ((v_ArrVal_2681 (Array Int Int))) (= .cse0 (select (select (store |c_#memory_$Pointer$.base| .cse0 v_ArrVal_2681) |c_ULTIMATE.start_main_~s~0#1.base|) 4))))) is different from false [2022-11-03 02:36:41,554 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~s~0#1.base|) (+ |c_ULTIMATE.start_main_~s~0#1.offset| 4)))) (and (forall ((v_ArrVal_2681 (Array Int Int))) (= (select (select (store |c_#memory_$Pointer$.base| .cse0 v_ArrVal_2681) |c_ULTIMATE.start_main_~s~0#1.base|) 4) .cse0)) (forall ((v_prenex_9 (Array Int Int))) (not (= (select (select (store |c_#memory_$Pointer$.base| .cse0 v_prenex_9) |c_ULTIMATE.start_main_~s~0#1.base|) 4) |c_ULTIMATE.start_main_~s~0#1.base|))))) is different from false [2022-11-03 02:36:41,564 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse1 (+ |c_ULTIMATE.start_main_~s~0#1.offset| 4)) (.cse2 (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_update_at_~head#1.base|))) (and (forall ((v_prenex_9 (Array Int Int)) (v_ArrVal_2679 Int)) (not (= (select (select (let ((.cse0 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_update_at_~head#1.base| (store .cse2 |c_ULTIMATE.start_dll_update_at_~head#1.offset| v_ArrVal_2679)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~s~0#1.base|) .cse1) v_prenex_9)) |c_ULTIMATE.start_main_~s~0#1.base|) 4) |c_ULTIMATE.start_main_~s~0#1.base|))) (forall ((v_ArrVal_2681 (Array Int Int)) (v_ArrVal_2679 Int)) (let ((.cse3 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_update_at_~head#1.base| (store .cse2 |c_ULTIMATE.start_dll_update_at_~head#1.offset| v_ArrVal_2679)))) (let ((.cse4 (select (select .cse3 |c_ULTIMATE.start_main_~s~0#1.base|) .cse1))) (= (select (select (store .cse3 .cse4 v_ArrVal_2681) |c_ULTIMATE.start_main_~s~0#1.base|) 4) .cse4)))))) is different from false [2022-11-03 02:36:41,601 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse2 (+ |c_ULTIMATE.start_main_~s~0#1.offset| 4)) (.cse3 (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~s~0#1.base|))) (and (forall ((|v_ULTIMATE.start_dll_update_at_~head#1.offset_110| Int)) (or (< |c_ULTIMATE.start_main_~s~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_110|) (forall ((v_ArrVal_2681 (Array Int Int)) (v_ArrVal_2679 Int)) (let ((.cse0 (store .cse3 |v_ULTIMATE.start_dll_update_at_~head#1.offset_110| v_ArrVal_2679))) (let ((.cse1 (select .cse0 .cse2))) (= (select (select (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~s~0#1.base| .cse0) .cse1 v_ArrVal_2681) |c_ULTIMATE.start_main_~s~0#1.base|) 4) .cse1)))))) (forall ((|v_ULTIMATE.start_dll_update_at_~head#1.offset_110| Int)) (or (< |c_ULTIMATE.start_main_~s~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_110|) (forall ((v_prenex_9 (Array Int Int)) (v_ArrVal_2679 Int)) (not (= (select (select (let ((.cse4 (store .cse3 |v_ULTIMATE.start_dll_update_at_~head#1.offset_110| v_ArrVal_2679))) (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~s~0#1.base| .cse4) (select .cse4 .cse2) v_prenex_9)) |c_ULTIMATE.start_main_~s~0#1.base|) 4) |c_ULTIMATE.start_main_~s~0#1.base|))))))) is different from false [2022-11-03 02:36:41,625 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse2 (+ |c_ULTIMATE.start_dll_create_~head~0#1.offset| 4)) (.cse3 (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base|))) (and (forall ((|v_ULTIMATE.start_dll_update_at_~head#1.offset_110| Int)) (or (< |c_ULTIMATE.start_dll_create_~head~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_110|) (forall ((v_ArrVal_2681 (Array Int Int)) (v_ArrVal_2679 Int)) (let ((.cse1 (store .cse3 |v_ULTIMATE.start_dll_update_at_~head#1.offset_110| v_ArrVal_2679))) (let ((.cse0 (select .cse1 .cse2))) (= .cse0 (select (select (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base| .cse1) .cse0 v_ArrVal_2681) |c_ULTIMATE.start_dll_create_~head~0#1.base|) 4))))))) (forall ((|v_ULTIMATE.start_dll_update_at_~head#1.offset_110| Int)) (or (< |c_ULTIMATE.start_dll_create_~head~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_110|) (forall ((v_prenex_9 (Array Int Int)) (v_ArrVal_2679 Int)) (not (= (select (select (let ((.cse4 (store .cse3 |v_ULTIMATE.start_dll_update_at_~head#1.offset_110| v_ArrVal_2679))) (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base| .cse4) (select .cse4 .cse2) v_prenex_9)) |c_ULTIMATE.start_dll_create_~head~0#1.base|) 4) |c_ULTIMATE.start_dll_create_~head~0#1.base|))))))) is different from false [2022-11-03 02:36:41,646 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse2 (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 4)) (.cse3 (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|))) (and (forall ((|v_ULTIMATE.start_dll_update_at_~head#1.offset_110| Int)) (or (forall ((v_ArrVal_2681 (Array Int Int)) (v_ArrVal_2679 Int)) (let ((.cse0 (store .cse3 |v_ULTIMATE.start_dll_update_at_~head#1.offset_110| v_ArrVal_2679))) (let ((.cse1 (select .cse0 .cse2))) (= (select (select (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| .cse0) .cse1 v_ArrVal_2681) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) 4) .cse1)))) (< |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_110|))) (forall ((|v_ULTIMATE.start_dll_update_at_~head#1.offset_110| Int)) (or (forall ((v_prenex_9 (Array Int Int)) (v_ArrVal_2679 Int)) (not (= (select (select (let ((.cse4 (store .cse3 |v_ULTIMATE.start_dll_update_at_~head#1.offset_110| v_ArrVal_2679))) (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| .cse4) (select .cse4 .cse2) v_prenex_9)) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) 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_110|))))) is different from false [2022-11-03 02:36:41,664 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse2 (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 4))) (and (forall ((v_ArrVal_2677 (Array Int Int)) (|v_ULTIMATE.start_dll_update_at_~head#1.offset_110| Int)) (or (forall ((v_prenex_9 (Array Int Int)) (v_ArrVal_2679 Int)) (not (= |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (select (select (let ((.cse0 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_2677))) (let ((.cse1 (store (select .cse0 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_110| v_ArrVal_2679))) (store (store .cse0 |c_ULTIMATE.start_dll_create_~new_head~0#1.base| .cse1) (select .cse1 .cse2) v_prenex_9))) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) 4)))) (< |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_110|))) (forall ((v_ArrVal_2677 (Array Int Int)) (|v_ULTIMATE.start_dll_update_at_~head#1.offset_110| Int)) (or (forall ((v_ArrVal_2681 (Array Int Int)) (v_ArrVal_2679 Int)) (let ((.cse4 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_2677))) (let ((.cse5 (store (select .cse4 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_110| v_ArrVal_2679))) (let ((.cse3 (select .cse5 .cse2))) (= .cse3 (select (select (store (store .cse4 |c_ULTIMATE.start_dll_create_~new_head~0#1.base| .cse5) .cse3 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_110|))))) is different from false [2022-11-03 02:36:41,699 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse3 (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 4)) (.cse4 (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|)) (.cse5 (+ 8 |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|))) (and (forall ((v_ArrVal_2677 (Array Int Int)) (v_ArrVal_2676 Int) (|v_ULTIMATE.start_dll_update_at_~head#1.offset_110| Int)) (or (forall ((v_ArrVal_2681 (Array Int Int)) (v_ArrVal_2679 Int)) (let ((.cse1 (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store .cse4 .cse5 v_ArrVal_2676)) |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_2677))) (let ((.cse2 (store (select .cse1 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_110| v_ArrVal_2679))) (let ((.cse0 (select .cse2 .cse3))) (= .cse0 (select (select (store (store .cse1 |c_ULTIMATE.start_dll_create_~new_head~0#1.base| .cse2) .cse0 v_ArrVal_2681) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) 4)))))) (< |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_110|))) (forall ((v_ArrVal_2677 (Array Int Int)) (v_ArrVal_2676 Int) (|v_ULTIMATE.start_dll_update_at_~head#1.offset_110| Int)) (or (forall ((v_prenex_9 (Array Int Int)) (v_ArrVal_2679 Int)) (not (= (select (select (let ((.cse6 (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store .cse4 .cse5 v_ArrVal_2676)) |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_2677))) (let ((.cse7 (store (select .cse6 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_110| v_ArrVal_2679))) (store (store .cse6 |c_ULTIMATE.start_dll_create_~new_head~0#1.base| .cse7) (select .cse7 .cse3) v_prenex_9))) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) 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_110|))))) is different from false [2022-11-03 02:36:41,713 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:36:41,713 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 108 treesize of output 69 [2022-11-03 02:36:41,717 INFO L390 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 132 treesize of output 120 [2022-11-03 02:36:41,721 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:36:41,747 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:36:41,747 INFO L390 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 57 treesize of output 44 [2022-11-03 02:36:41,752 INFO L390 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 92 treesize of output 88 [2022-11-03 02:36:41,756 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:36:41,765 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:36:41,765 INFO L390 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 65 treesize of output 47 [2022-11-03 02:36:41,824 INFO L356 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-11-03 02:36:41,824 INFO L390 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 82 treesize of output 1 [2022-11-03 02:36:41,882 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 8 trivial. 11 not checked. [2022-11-03 02:36:41,882 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1122256874] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:36:41,882 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [341799383] [2022-11-03 02:36:41,884 INFO L159 IcfgInterpreter]: Started Sifa with 24 locations of interest [2022-11-03 02:36:41,884 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 02:36:41,884 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 02:36:41,885 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 02:36:41,885 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 02:36:41,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:41,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:41,913 INFO L390 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 [2022-11-03 02:36:41,934 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:36:41,941 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:36:41,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:41,949 INFO L390 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 [2022-11-03 02:36:41,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:41,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:41,970 INFO L390 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 [2022-11-03 02:36:41,979 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:36:41,987 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:36:42,001 INFO L390 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 [2022-11-03 02:36:42,010 INFO L390 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 [2022-11-03 02:36:42,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:42,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:42,021 INFO L390 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 [2022-11-03 02:36:42,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:42,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:42,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:42,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:42,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:42,062 INFO L390 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 [2022-11-03 02:36:42,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:42,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:42,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:42,107 INFO L390 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 [2022-11-03 02:36:42,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:42,121 INFO L390 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 [2022-11-03 02:36:42,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:42,134 INFO L390 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 [2022-11-03 02:36:42,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:42,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:42,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:42,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:42,158 INFO L390 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 [2022-11-03 02:36:42,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:42,170 INFO L390 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 [2022-11-03 02:36:42,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:42,184 INFO L390 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 [2022-11-03 02:36:42,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:42,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:42,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:42,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:42,212 INFO L390 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 [2022-11-03 02:36:42,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:42,224 INFO L390 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 [2022-11-03 02:36:42,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:42,243 INFO L390 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 [2022-11-03 02:36:42,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:42,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:42,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:42,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:42,276 INFO L390 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 [2022-11-03 02:36:42,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:42,294 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:36:42,295 INFO L390 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 [2022-11-03 02:36:42,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:42,310 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:36:42,311 INFO L390 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 [2022-11-03 02:36:42,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:42,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:42,527 INFO L356 Elim1Store]: treesize reduction 34, result has 41.4 percent of original size [2022-11-03 02:36:42,528 INFO L390 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 [2022-11-03 02:36:42,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:42,570 INFO L390 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 [2022-11-03 02:36:42,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:42,582 INFO L390 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 [2022-11-03 02:36:42,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:42,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:42,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:42,596 INFO L390 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 [2022-11-03 02:36:42,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:42,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:42,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:42,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:42,622 INFO L390 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 [2022-11-03 02:36:42,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:42,634 INFO L390 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 [2022-11-03 02:36:42,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:42,650 INFO L390 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 [2022-11-03 02:36:42,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:42,678 INFO L390 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 [2022-11-03 02:36:42,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:42,697 INFO L390 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 [2022-11-03 02:36:42,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:42,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:42,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:42,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:42,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:42,715 INFO L390 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 [2022-11-03 02:36:42,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:42,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:42,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:42,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:42,759 INFO L390 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 [2022-11-03 02:36:42,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:42,773 INFO L390 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 [2022-11-03 02:36:42,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:42,787 INFO L390 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 [2022-11-03 02:36:42,825 INFO L390 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 [2022-11-03 02:36:42,830 INFO L390 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 [2022-11-03 02:36:42,843 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:36:42,849 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:36:42,855 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:36:42,866 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:36:42,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:42,875 INFO L390 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 [2022-11-03 02:36:42,881 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:36:42,896 INFO L390 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 [2022-11-03 02:36:42,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:42,905 INFO L390 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 [2022-11-03 02:36:42,912 INFO L390 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 [2022-11-03 02:36:42,932 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:36:42,942 INFO L356 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-11-03 02:36:42,942 INFO L390 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 [2022-11-03 02:36:42,953 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:36:42,965 INFO L356 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-11-03 02:36:42,965 INFO L390 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 [2022-11-03 02:36:42,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:42,978 INFO L390 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 [2022-11-03 02:36:43,032 INFO L390 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 [2022-11-03 02:36:43,037 INFO L390 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 [2022-11-03 02:36:43,050 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:36:43,056 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:36:43,075 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:36:43,090 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:36:43,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:43,099 INFO L390 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 [2022-11-03 02:36:43,106 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:36:43,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:43,120 INFO L390 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 [2022-11-03 02:36:43,127 INFO L390 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 [2022-11-03 02:36:43,137 INFO L390 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 [2022-11-03 02:36:43,155 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:36:43,165 INFO L356 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-11-03 02:36:43,165 INFO L390 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 [2022-11-03 02:36:43,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:43,176 INFO L390 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 [2022-11-03 02:36:43,185 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:36:43,197 INFO L356 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-11-03 02:36:43,197 INFO L390 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 [2022-11-03 02:36:43,286 INFO L390 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 [2022-11-03 02:36:43,296 INFO L390 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 [2022-11-03 02:36:43,305 INFO L390 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 [2022-11-03 02:36:43,376 INFO L390 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 [2022-11-03 02:36:43,384 INFO L390 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 [2022-11-03 02:36:43,398 INFO L390 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 [2022-11-03 02:36:43,485 INFO L390 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 [2022-11-03 02:36:43,504 INFO L390 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 [2022-11-03 02:36:43,518 INFO L390 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 [2022-11-03 02:36:44,039 INFO L390 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 [2022-11-03 02:36:44,098 INFO L390 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 [2022-11-03 02:36:44,157 INFO L390 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 [2022-11-03 02:36:44,362 INFO L390 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 [2022-11-03 02:36:44,368 INFO L390 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 [2022-11-03 02:36:44,388 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:36:44,394 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:36:44,401 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:36:44,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:44,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:44,456 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:36:44,462 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 02:36:44,462 INFO L390 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 [2022-11-03 02:36:44,487 INFO L390 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 [2022-11-03 02:36:44,498 INFO L390 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 [2022-11-03 02:36:44,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:44,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:44,542 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:36:44,548 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 02:36:44,548 INFO L390 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 [2022-11-03 02:36:44,573 INFO L390 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 [2022-11-03 02:36:44,593 INFO L390 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 [2022-11-03 02:36:44,615 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 02:36:49,247 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '8663#(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 [2022-11-03 02:36:49,248 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 02:36:49,248 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 02:36:49,248 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 16, 18] total 41 [2022-11-03 02:36:49,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032608593] [2022-11-03 02:36:49,248 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 02:36:49,248 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2022-11-03 02:36:49,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:36:49,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2022-11-03 02:36:49,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=248, Invalid=2641, Unknown=9, NotChecked=1008, Total=3906 [2022-11-03 02:36:49,250 INFO L87 Difference]: Start difference. First operand 52 states and 52 transitions. Second operand has 42 states, 41 states have (on average 2.4390243902439024) internal successors, (100), 42 states have internal predecessors, (100), 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) [2022-11-03 02:36:53,188 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse2 (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 4))) (let ((.cse3 (store |c_#valid| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| 0)) (.cse4 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) .cse2))) (and (forall ((v_ArrVal_2677 (Array Int Int)) (|v_ULTIMATE.start_dll_update_at_~head#1.offset_110| Int)) (or (forall ((v_prenex_9 (Array Int Int)) (v_ArrVal_2679 Int)) (not (= |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (select (select (let ((.cse0 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_2677))) (let ((.cse1 (store (select .cse0 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_110| v_ArrVal_2679))) (store (store .cse0 |c_ULTIMATE.start_dll_create_~new_head~0#1.base| .cse1) (select .cse1 .cse2) v_prenex_9))) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) 4)))) (< |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_110|))) (= |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 0) (= (select |c_#valid| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) 1) (= (select .cse3 |c_ULTIMATE.start_dll_create_~head~0#1.base|) 1) (= (select .cse3 .cse4) 1) (= .cse4 |c_ULTIMATE.start_dll_create_~head~0#1.base|) (not (= |c_ULTIMATE.start_dll_create_~new_head~0#1.base| |c_ULTIMATE.start_dll_create_~head~0#1.base|)) (forall ((v_ArrVal_2677 (Array Int Int)) (|v_ULTIMATE.start_dll_update_at_~head#1.offset_110| Int)) (or (forall ((v_ArrVal_2681 (Array Int Int)) (v_ArrVal_2679 Int)) (let ((.cse6 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_2677))) (let ((.cse7 (store (select .cse6 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_110| v_ArrVal_2679))) (let ((.cse5 (select .cse7 .cse2))) (= .cse5 (select (select (store (store .cse6 |c_ULTIMATE.start_dll_create_~new_head~0#1.base| .cse7) .cse5 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_110|)))))) is different from false [2022-11-03 02:36:53,193 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse2 (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 4))) (let ((.cse3 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) .cse2))) (and (forall ((v_ArrVal_2677 (Array Int Int)) (|v_ULTIMATE.start_dll_update_at_~head#1.offset_110| Int)) (or (forall ((v_prenex_9 (Array Int Int)) (v_ArrVal_2679 Int)) (not (= |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (select (select (let ((.cse0 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_2677))) (let ((.cse1 (store (select .cse0 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_110| v_ArrVal_2679))) (store (store .cse0 |c_ULTIMATE.start_dll_create_~new_head~0#1.base| .cse1) (select .cse1 .cse2) v_prenex_9))) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) 4)))) (< |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_110|))) (= |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 0) (= (select (store |c_#valid| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| 0) .cse3) 1) (= .cse3 |c_ULTIMATE.start_dll_create_~head~0#1.base|) (not (= |c_ULTIMATE.start_dll_create_~new_head~0#1.base| |c_ULTIMATE.start_dll_create_~head~0#1.base|)) (forall ((v_ArrVal_2677 (Array Int Int)) (|v_ULTIMATE.start_dll_update_at_~head#1.offset_110| Int)) (or (forall ((v_ArrVal_2681 (Array Int Int)) (v_ArrVal_2679 Int)) (let ((.cse5 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_2677))) (let ((.cse6 (store (select .cse5 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_110| v_ArrVal_2679))) (let ((.cse4 (select .cse6 .cse2))) (= .cse4 (select (select (store (store .cse5 |c_ULTIMATE.start_dll_create_~new_head~0#1.base| .cse6) .cse4 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_110|)))))) is different from false [2022-11-03 02:36:53,198 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse2 (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 4)) (.cse3 (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|))) (and (= |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 0) (forall ((|v_ULTIMATE.start_dll_update_at_~head#1.offset_110| Int)) (or (forall ((v_ArrVal_2681 (Array Int Int)) (v_ArrVal_2679 Int)) (let ((.cse0 (store .cse3 |v_ULTIMATE.start_dll_update_at_~head#1.offset_110| v_ArrVal_2679))) (let ((.cse1 (select .cse0 .cse2))) (= (select (select (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| .cse0) .cse1 v_ArrVal_2681) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) 4) .cse1)))) (< |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_110|))) (= (select (store |c_#valid| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| 0) (select .cse3 .cse2)) 1) (forall ((|v_ULTIMATE.start_dll_update_at_~head#1.offset_110| Int)) (or (forall ((v_prenex_9 (Array Int Int)) (v_ArrVal_2679 Int)) (not (= (select (select (let ((.cse4 (store .cse3 |v_ULTIMATE.start_dll_update_at_~head#1.offset_110| v_ArrVal_2679))) (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| .cse4) (select .cse4 .cse2) v_prenex_9)) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) 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_110|))))) is different from false [2022-11-03 02:36:53,204 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse2 (+ |c_ULTIMATE.start_dll_create_~head~0#1.offset| 4)) (.cse3 (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base|))) (and (forall ((|v_ULTIMATE.start_dll_update_at_~head#1.offset_110| Int)) (or (< |c_ULTIMATE.start_dll_create_~head~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_110|) (forall ((v_ArrVal_2681 (Array Int Int)) (v_ArrVal_2679 Int)) (let ((.cse1 (store .cse3 |v_ULTIMATE.start_dll_update_at_~head#1.offset_110| v_ArrVal_2679))) (let ((.cse0 (select .cse1 .cse2))) (= .cse0 (select (select (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base| .cse1) .cse0 v_ArrVal_2681) |c_ULTIMATE.start_dll_create_~head~0#1.base|) 4))))))) (= |c_ULTIMATE.start_dll_create_~head~0#1.offset| 0) (= (select (store |c_#valid| |c_ULTIMATE.start_dll_create_~head~0#1.base| 0) (select .cse3 4)) 1) (forall ((|v_ULTIMATE.start_dll_update_at_~head#1.offset_110| Int)) (or (< |c_ULTIMATE.start_dll_create_~head~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_110|) (forall ((v_prenex_9 (Array Int Int)) (v_ArrVal_2679 Int)) (not (= (select (select (let ((.cse4 (store .cse3 |v_ULTIMATE.start_dll_update_at_~head#1.offset_110| v_ArrVal_2679))) (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base| .cse4) (select .cse4 .cse2) v_prenex_9)) |c_ULTIMATE.start_dll_create_~head~0#1.base|) 4) |c_ULTIMATE.start_dll_create_~head~0#1.base|))))))) is different from false [2022-11-03 02:36:53,209 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse2 (+ |c_ULTIMATE.start_main_~s~0#1.offset| 4)) (.cse3 (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~s~0#1.base|))) (and (forall ((|v_ULTIMATE.start_dll_update_at_~head#1.offset_110| Int)) (or (< |c_ULTIMATE.start_main_~s~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_110|) (forall ((v_ArrVal_2681 (Array Int Int)) (v_ArrVal_2679 Int)) (let ((.cse0 (store .cse3 |v_ULTIMATE.start_dll_update_at_~head#1.offset_110| v_ArrVal_2679))) (let ((.cse1 (select .cse0 .cse2))) (= (select (select (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~s~0#1.base| .cse0) .cse1 v_ArrVal_2681) |c_ULTIMATE.start_main_~s~0#1.base|) 4) .cse1)))))) (= |c_ULTIMATE.start_main_~s~0#1.offset| 0) (= (select (store |c_#valid| |c_ULTIMATE.start_main_~s~0#1.base| 0) (select .cse3 4)) 1) (forall ((|v_ULTIMATE.start_dll_update_at_~head#1.offset_110| Int)) (or (< |c_ULTIMATE.start_main_~s~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_110|) (forall ((v_prenex_9 (Array Int Int)) (v_ArrVal_2679 Int)) (not (= (select (select (let ((.cse4 (store .cse3 |v_ULTIMATE.start_dll_update_at_~head#1.offset_110| v_ArrVal_2679))) (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~s~0#1.base| .cse4) (select .cse4 .cse2) v_prenex_9)) |c_ULTIMATE.start_main_~s~0#1.base|) 4) |c_ULTIMATE.start_main_~s~0#1.base|))))))) is different from false [2022-11-03 02:36:53,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:36:53,931 INFO L93 Difference]: Finished difference Result 58 states and 58 transitions. [2022-11-03 02:36:53,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-03 02:36:53,931 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 41 states have (on average 2.4390243902439024) internal successors, (100), 42 states have internal predecessors, (100), 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 [2022-11-03 02:36:53,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:36:53,932 INFO L225 Difference]: With dead ends: 58 [2022-11-03 02:36:53,932 INFO L226 Difference]: Without dead ends: 58 [2022-11-03 02:36:53,933 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 87 SyntacticMatches, 6 SemanticMatches, 77 ConstructedPredicates, 14 IntricatePredicates, 0 DeprecatedPredicates, 1487 ImplicationChecksByTransitivity, 9.6s TimeCoverageRelationStatistics Valid=368, Invalid=3834, Unknown=14, NotChecked=1946, Total=6162 [2022-11-03 02:36:53,933 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 100 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 609 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 1049 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 609 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 413 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-03 02:36:53,934 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 80 Invalid, 1049 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 609 Invalid, 0 Unknown, 413 Unchecked, 0.4s Time] [2022-11-03 02:36:53,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2022-11-03 02:36:53,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 55. [2022-11-03 02:36:53,935 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) [2022-11-03 02:36:53,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 57 transitions. [2022-11-03 02:36:53,935 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 57 transitions. Word has length 44 [2022-11-03 02:36:53,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:36:53,936 INFO L495 AbstractCegarLoop]: Abstraction has 55 states and 57 transitions. [2022-11-03 02:36:53,936 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 41 states have (on average 2.4390243902439024) internal successors, (100), 42 states have internal predecessors, (100), 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) [2022-11-03 02:36:53,936 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 57 transitions. [2022-11-03 02:36:53,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-11-03 02:36:53,936 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:36:53,937 INFO L195 NwaCegarLoop]: 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] [2022-11-03 02:36:53,978 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_654ffbce-fddd-43d7-97a9-56350347d9c0/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2022-11-03 02:36:54,146 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_654ffbce-fddd-43d7-97a9-56350347d9c0/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2022-11-03 02:36:54,146 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr17REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 20 more)] === [2022-11-03 02:36:54,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:36:54,147 INFO L85 PathProgramCache]: Analyzing trace with hash 814425933, now seen corresponding path program 1 times [2022-11-03 02:36:54,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:36:54,147 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590404166] [2022-11-03 02:36:54,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:36:54,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:36:54,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:36:55,729 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 3 proven. 16 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-11-03 02:36:55,729 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:36:55,729 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590404166] [2022-11-03 02:36:55,729 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1590404166] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:36:55,729 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1659098215] [2022-11-03 02:36:55,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:36:55,730 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:36:55,730 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_654ffbce-fddd-43d7-97a9-56350347d9c0/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:36:55,731 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_654ffbce-fddd-43d7-97a9-56350347d9c0/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:36:55,732 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_654ffbce-fddd-43d7-97a9-56350347d9c0/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2022-11-03 02:36:55,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:36:55,978 INFO L263 TraceCheckSpWp]: Trace formula consists of 398 conjuncts, 90 conjunts are in the unsatisfiable core [2022-11-03 02:36:55,982 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:36:55,994 INFO L390 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 [2022-11-03 02:36:56,073 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-03 02:36:56,073 INFO L390 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 [2022-11-03 02:36:56,124 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:36:56,131 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:36:56,179 INFO L390 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 [2022-11-03 02:36:56,185 INFO L390 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 [2022-11-03 02:36:56,221 INFO L356 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-03 02:36:56,221 INFO L390 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 [2022-11-03 02:36:56,225 INFO L390 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 [2022-11-03 02:36:56,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:56,347 INFO L390 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 [2022-11-03 02:36:56,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:56,352 INFO L390 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 [2022-11-03 02:36:56,524 INFO L356 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-03 02:36:56,525 INFO L390 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 42 treesize of output 41 [2022-11-03 02:36:56,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:56,541 INFO L390 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 29 [2022-11-03 02:36:56,765 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:36:56,765 INFO L390 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 17 treesize of output 15 [2022-11-03 02:36:56,778 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:36:56,779 INFO L390 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 21 [2022-11-03 02:36:56,874 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 3 proven. 18 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-03 02:36:56,874 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:37:45,915 WARN L234 SmtUtils]: Spent 6.02s on a formula simplification that was a NOOP. DAG size: 47 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:39:30,342 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:39:30,343 INFO L390 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 161 treesize of output 165 [2022-11-03 02:39:30,438 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 4))) (and (forall ((v_prenex_12 Int)) (or (forall ((v_prenex_15 Int) (v_prenex_10 (Array Int Int))) (not (<= 0 (select (store (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_prenex_10) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) v_prenex_12 v_prenex_15) .cse0)))) (< |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| v_prenex_12) (forall ((v_prenex_14 Int) (v_prenex_11 (Array Int Int)) (v_ArrVal_2817 (Array Int Int))) (= (select (select (let ((.cse1 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_prenex_11))) (let ((.cse2 (store (select .cse1 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) v_prenex_12 v_prenex_14))) (store (store .cse1 |c_ULTIMATE.start_dll_create_~new_head~0#1.base| .cse2) (select .cse2 .cse0) v_ArrVal_2817))) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) 4) |c_ULTIMATE.start_dll_create_~head~0#1.base|)))) (forall ((v_prenex_12 Int)) (or (< |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| v_prenex_12) (forall ((v_prenex_15 Int) (v_prenex_10 (Array Int Int))) (let ((.cse4 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_prenex_10))) (let ((.cse3 (store (select .cse4 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) v_prenex_12 v_prenex_15))) (or (not (<= 0 (select .cse3 .cse0))) (forall ((v_prenex_14 Int) (v_prenex_13 (Array Int Int)) (v_prenex_11 (Array Int Int))) (< (select (select (store (store .cse4 |c_ULTIMATE.start_dll_create_~new_head~0#1.base| .cse3) (select (store (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_prenex_11) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) v_prenex_12 v_prenex_14) .cse0) v_prenex_13) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) 4) (+ |c_ULTIMATE.start_dll_create_~head~0#1.offset| 5))))))))) (forall ((v_ArrVal_2812 (Array Int Int)) (v_ArrVal_2811 (Array Int Int)) (|v_ULTIMATE.start_dll_update_at_~head#1.offset_118| Int) (v_ArrVal_2818 (Array Int Int)) (v_ArrVal_2814 Int) (v_ArrVal_2813 Int)) (let ((.cse5 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_2812))) (let ((.cse6 (store (select .cse5 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_118| v_ArrVal_2813))) (or (<= 0 (+ (select (select (store (store .cse5 |c_ULTIMATE.start_dll_create_~new_head~0#1.base| .cse6) (select (store (select (store |c_#memory_$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_118| v_ArrVal_2814) .cse0) v_ArrVal_2818) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) 4) 4)) (< |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_118|) (not (<= 0 (select .cse6 .cse0))))))))) is different from false [2022-11-03 02:39:30,567 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse3 (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|)) (.cse5 (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|)) (.cse4 (+ 8 |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|)) (.cse1 (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 4))) (and (forall ((v_ArrVal_2812 (Array Int Int)) (v_ArrVal_2811 (Array Int Int)) (|v_ULTIMATE.start_dll_update_at_~head#1.offset_118| Int) (v_ArrVal_2809 Int) (v_ArrVal_2808 Int) (v_ArrVal_2818 (Array Int Int)) (v_ArrVal_2814 Int) (v_ArrVal_2813 Int)) (let ((.cse2 (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store .cse5 .cse4 v_ArrVal_2808)) |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_2812))) (let ((.cse0 (store (select .cse2 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_118| v_ArrVal_2813))) (or (< |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_118|) (not (<= 0 (select .cse0 .cse1))) (<= 0 (+ (select (select (store (store .cse2 |c_ULTIMATE.start_dll_create_~new_head~0#1.base| .cse0) (select (store (select (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store .cse3 .cse4 v_ArrVal_2809)) |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_2811) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_118| v_ArrVal_2814) .cse1) v_ArrVal_2818) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) 4) 4)))))) (forall ((v_ArrVal_2809 Int) (v_prenex_12 Int) (v_ArrVal_2808 Int)) (or (< |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| v_prenex_12) (forall ((v_prenex_15 Int) (v_prenex_10 (Array Int Int))) (let ((.cse6 (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store .cse5 .cse4 v_ArrVal_2808)) |c_ULTIMATE.start_dll_create_~head~0#1.base| v_prenex_10))) (let ((.cse7 (store (select .cse6 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) v_prenex_12 v_prenex_15))) (or (forall ((v_prenex_14 Int) (v_prenex_13 (Array Int Int)) (v_prenex_11 (Array Int Int))) (< (select (select (store (store .cse6 |c_ULTIMATE.start_dll_create_~new_head~0#1.base| .cse7) (select (store (select (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store .cse3 .cse4 v_ArrVal_2809)) |c_ULTIMATE.start_dll_create_~head~0#1.base| v_prenex_11) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) v_prenex_12 v_prenex_14) .cse1) v_prenex_13) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) 4) (+ |c_ULTIMATE.start_dll_create_~head~0#1.offset| 5))) (not (<= 0 (select .cse7 .cse1))))))))) (forall ((v_ArrVal_2809 Int) (v_prenex_12 Int) (v_ArrVal_2808 Int)) (or (< |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| v_prenex_12) (forall ((v_prenex_14 Int) (v_prenex_11 (Array Int Int)) (v_ArrVal_2817 (Array Int Int))) (= (select (select (let ((.cse8 (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store .cse3 .cse4 v_ArrVal_2809)) |c_ULTIMATE.start_dll_create_~head~0#1.base| v_prenex_11))) (let ((.cse9 (store (select .cse8 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) v_prenex_12 v_prenex_14))) (store (store .cse8 |c_ULTIMATE.start_dll_create_~new_head~0#1.base| .cse9) (select .cse9 .cse1) v_ArrVal_2817))) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) 4) |c_ULTIMATE.start_dll_create_~head~0#1.base|)) (forall ((v_prenex_15 Int) (v_prenex_10 (Array Int Int))) (not (<= 0 (select (store (select (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store .cse5 .cse4 v_ArrVal_2808)) |c_ULTIMATE.start_dll_create_~head~0#1.base| v_prenex_10) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) v_prenex_12 v_prenex_15) .cse1)))))))) is different from false [2022-11-03 02:39:30,611 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:39:30,611 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 115 treesize of output 90 [2022-11-03 02:39:30,625 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:39:30,625 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 53 treesize of output 59 [2022-11-03 02:39:30,634 INFO L390 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 88 treesize of output 84 [2022-11-03 02:39:30,641 INFO L390 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 242 treesize of output 234 [2022-11-03 02:39:30,648 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:39:30,652 INFO L390 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 68 [2022-11-03 02:39:30,659 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:39:30,662 INFO L390 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 94 treesize of output 74 [2022-11-03 02:39:30,670 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:39:30,681 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:39:30,682 INFO L390 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 191 treesize of output 191 [2022-11-03 02:39:30,690 INFO L390 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 158 treesize of output 150 [2022-11-03 02:39:30,697 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:39:30,705 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:39:30,706 INFO L390 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 204 treesize of output 200 [2022-11-03 02:39:30,841 INFO L356 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-11-03 02:39:30,841 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 1 [2022-11-03 02:39:30,850 INFO L356 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-11-03 02:39:30,851 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 115 treesize of output 1 [2022-11-03 02:39:31,010 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 2 proven. 13 refuted. 1 times theorem prover too weak. 8 trivial. 2 not checked. [2022-11-03 02:39:31,010 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1659098215] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:39:31,010 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1013442420] [2022-11-03 02:39:31,012 INFO L159 IcfgInterpreter]: Started Sifa with 24 locations of interest [2022-11-03 02:39:31,012 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 02:39:31,012 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 02:39:31,012 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 02:39:31,012 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 02:39:31,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:39:31,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:39:31,039 INFO L390 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 [2022-11-03 02:39:31,057 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:39:31,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:39:31,065 INFO L390 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 [2022-11-03 02:39:31,074 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:39:31,089 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:39:31,098 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:39:31,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:39:31,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:39:31,109 INFO L390 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 [2022-11-03 02:39:31,125 INFO L390 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 [2022-11-03 02:39:31,136 INFO L390 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 [2022-11-03 02:39:31,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:39:31,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:39:31,147 INFO L390 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 [2022-11-03 02:39:31,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:39:31,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:39:31,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:39:31,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:39:31,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:39:31,187 INFO L390 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 [2022-11-03 02:39:31,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:39:31,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:39:31,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:39:31,229 INFO L390 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 [2022-11-03 02:39:31,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:39:31,241 INFO L390 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 [2022-11-03 02:39:31,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:39:31,255 INFO L390 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 [2022-11-03 02:39:31,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:39:31,278 INFO L390 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 [2022-11-03 02:39:31,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:39:31,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:39:31,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:39:31,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:39:31,294 INFO L390 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 [2022-11-03 02:39:31,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:39:31,312 INFO L390 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 [2022-11-03 02:39:31,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:39:31,351 INFO L390 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 [2022-11-03 02:39:31,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:39:31,364 INFO L390 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 [2022-11-03 02:39:31,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:39:31,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:39:31,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:39:31,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:39:31,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:39:31,392 INFO L390 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 [2022-11-03 02:39:31,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:39:31,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:39:31,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:39:31,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:39:31,438 INFO L390 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 [2022-11-03 02:39:31,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:39:31,451 INFO L390 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 [2022-11-03 02:39:31,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:39:31,468 INFO L390 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 [2022-11-03 02:39:31,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:39:31,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:39:31,670 INFO L356 Elim1Store]: treesize reduction 34, result has 41.4 percent of original size [2022-11-03 02:39:31,670 INFO L390 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 [2022-11-03 02:39:31,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:39:31,713 INFO L390 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 [2022-11-03 02:39:31,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:39:31,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:39:31,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:39:31,730 INFO L390 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 [2022-11-03 02:39:31,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:39:31,746 INFO L390 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 [2022-11-03 02:39:31,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:39:31,773 INFO L390 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 [2022-11-03 02:39:31,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:39:31,786 INFO L390 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 [2022-11-03 02:39:31,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:39:31,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:39:31,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:39:31,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:39:31,807 INFO L390 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 [2022-11-03 02:39:31,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:39:31,846 INFO L390 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 [2022-11-03 02:39:31,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:39:31,860 INFO L390 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 [2022-11-03 02:39:31,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:39:31,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:39:31,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:39:31,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:39:31,877 INFO L390 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 [2022-11-03 02:39:31,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:39:31,914 INFO L390 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 [2022-11-03 02:39:31,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:39:31,932 INFO L390 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 [2022-11-03 02:39:31,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:39:31,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:39:31,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:39:31,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:39:31,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:39:31,953 INFO L390 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 [2022-11-03 02:39:31,990 INFO L390 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 [2022-11-03 02:39:31,996 INFO L390 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 [2022-11-03 02:39:32,009 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:39:32,014 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:39:32,020 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:39:32,033 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:39:32,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:39:32,041 INFO L390 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 [2022-11-03 02:39:32,048 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:39:32,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:39:32,081 INFO L390 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 [2022-11-03 02:39:32,088 INFO L390 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 [2022-11-03 02:39:32,097 INFO L390 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 [2022-11-03 02:39:32,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:39:32,115 INFO L390 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 [2022-11-03 02:39:32,128 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:39:32,143 INFO L356 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-11-03 02:39:32,144 INFO L390 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 [2022-11-03 02:39:32,159 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:39:32,171 INFO L356 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-11-03 02:39:32,171 INFO L390 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 [2022-11-03 02:39:32,229 INFO L390 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 [2022-11-03 02:39:32,235 INFO L390 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 [2022-11-03 02:39:32,249 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:39:32,255 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:39:32,263 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:39:32,275 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:39:32,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:39:32,282 INFO L390 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 [2022-11-03 02:39:32,290 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:39:32,303 INFO L390 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 [2022-11-03 02:39:32,311 INFO L390 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 [2022-11-03 02:39:32,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:39:32,321 INFO L390 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 [2022-11-03 02:39:32,340 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:39:32,350 INFO L356 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-11-03 02:39:32,350 INFO L390 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 [2022-11-03 02:39:32,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:39:32,361 INFO L390 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 [2022-11-03 02:39:32,370 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:39:32,382 INFO L356 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-11-03 02:39:32,383 INFO L390 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 [2022-11-03 02:39:32,470 INFO L390 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 [2022-11-03 02:39:32,481 INFO L390 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 [2022-11-03 02:39:32,497 INFO L390 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 [2022-11-03 02:39:32,578 INFO L390 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 [2022-11-03 02:39:32,586 INFO L390 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 [2022-11-03 02:39:32,599 INFO L390 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 [2022-11-03 02:39:32,682 INFO L390 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 [2022-11-03 02:39:32,692 INFO L390 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 [2022-11-03 02:39:32,700 INFO L390 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 [2022-11-03 02:39:33,228 INFO L390 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 [2022-11-03 02:39:33,289 INFO L390 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 [2022-11-03 02:39:33,351 INFO L390 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 [2022-11-03 02:39:33,587 INFO L390 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 [2022-11-03 02:39:33,592 INFO L390 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 [2022-11-03 02:39:33,607 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:39:33,614 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:39:33,620 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:39:33,673 INFO L390 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 [2022-11-03 02:39:33,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:39:33,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:39:33,686 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:39:33,692 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 02:39:33,692 INFO L390 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 [2022-11-03 02:39:33,717 INFO L390 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 [2022-11-03 02:39:33,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:39:33,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:39:33,753 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:39:33,759 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 02:39:33,760 INFO L390 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 [2022-11-03 02:39:33,800 INFO L390 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 [2022-11-03 02:39:33,812 INFO L390 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 [2022-11-03 02:39:33,833 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 02:39:39,350 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '9137#(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) (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) (or (not (<= 0 (+ |ULTIMATE.start_dll_destroy_~head#1.offset| 4))) (not (<= (+ |ULTIMATE.start_dll_destroy_~head#1.offset| 8) (select |#length| |ULTIMATE.start_dll_destroy_~head#1.base|)))) (<= 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 [2022-11-03 02:39:39,350 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 02:39:39,350 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 02:39:39,351 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 16, 18] total 45 [2022-11-03 02:39:39,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528212211] [2022-11-03 02:39:39,351 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 02:39:39,351 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2022-11-03 02:39:39,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:39:39,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2022-11-03 02:39:39,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=310, Invalid=3918, Unknown=70, NotChecked=258, Total=4556 [2022-11-03 02:39:39,353 INFO L87 Difference]: Start difference. First operand 55 states and 57 transitions. Second operand has 46 states, 45 states have (on average 2.6) internal successors, (117), 46 states have internal predecessors, (117), 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) [2022-11-03 02:39:45,813 WARN L234 SmtUtils]: Spent 6.13s on a formula simplification. DAG size of input: 105 DAG size of output: 92 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:39:45,821 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 4))) (let ((.cse5 (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) .cse0))) (and (forall ((v_prenex_12 Int)) (or (forall ((v_prenex_15 Int) (v_prenex_10 (Array Int Int))) (not (<= 0 (select (store (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_prenex_10) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) v_prenex_12 v_prenex_15) .cse0)))) (< |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| v_prenex_12) (forall ((v_prenex_14 Int) (v_prenex_11 (Array Int Int)) (v_ArrVal_2817 (Array Int Int))) (= (select (select (let ((.cse1 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_prenex_11))) (let ((.cse2 (store (select .cse1 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) v_prenex_12 v_prenex_14))) (store (store .cse1 |c_ULTIMATE.start_dll_create_~new_head~0#1.base| .cse2) (select .cse2 .cse0) v_ArrVal_2817))) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) 4) |c_ULTIMATE.start_dll_create_~head~0#1.base|)))) (= |c_ULTIMATE.start_dll_create_~head~0#1.offset| 0) (= |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 0) (= (select |c_#valid| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) 1) (forall ((v_prenex_12 Int)) (or (< |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| v_prenex_12) (forall ((v_prenex_15 Int) (v_prenex_10 (Array Int Int))) (let ((.cse4 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_prenex_10))) (let ((.cse3 (store (select .cse4 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) v_prenex_12 v_prenex_15))) (or (not (<= 0 (select .cse3 .cse0))) (forall ((v_prenex_14 Int) (v_prenex_13 (Array Int Int)) (v_prenex_11 (Array Int Int))) (< (select (select (store (store .cse4 |c_ULTIMATE.start_dll_create_~new_head~0#1.base| .cse3) (select (store (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_prenex_11) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) v_prenex_12 v_prenex_14) .cse0) v_prenex_13) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) 4) (+ |c_ULTIMATE.start_dll_create_~head~0#1.offset| 5))))))))) (= (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) .cse0) |c_ULTIMATE.start_dll_create_~head~0#1.base|) (= .cse5 0) (not (= |c_ULTIMATE.start_dll_create_~new_head~0#1.base| |c_ULTIMATE.start_dll_create_~head~0#1.base|)) (<= 12 (select |c_#length| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|)) (= |c_ULTIMATE.start_dll_create_~head~0#1.offset| .cse5) (<= 12 (select |c_#length| |c_ULTIMATE.start_dll_create_~head~0#1.base|)) (forall ((v_ArrVal_2812 (Array Int Int)) (v_ArrVal_2811 (Array Int Int)) (|v_ULTIMATE.start_dll_update_at_~head#1.offset_118| Int) (v_ArrVal_2818 (Array Int Int)) (v_ArrVal_2814 Int) (v_ArrVal_2813 Int)) (let ((.cse6 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_2812))) (let ((.cse7 (store (select .cse6 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_118| v_ArrVal_2813))) (or (<= 0 (+ (select (select (store (store .cse6 |c_ULTIMATE.start_dll_create_~new_head~0#1.base| .cse7) (select (store (select (store |c_#memory_$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_118| v_ArrVal_2814) .cse0) v_ArrVal_2818) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) 4) 4)) (< |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_118|) (not (<= 0 (select .cse7 .cse0)))))))))) is different from false [2022-11-03 02:39:45,833 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 4))) (let ((.cse5 (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) .cse0))) (and (forall ((v_prenex_12 Int)) (or (forall ((v_prenex_15 Int) (v_prenex_10 (Array Int Int))) (not (<= 0 (select (store (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_prenex_10) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) v_prenex_12 v_prenex_15) .cse0)))) (< |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| v_prenex_12) (forall ((v_prenex_14 Int) (v_prenex_11 (Array Int Int)) (v_ArrVal_2817 (Array Int Int))) (= (select (select (let ((.cse1 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_prenex_11))) (let ((.cse2 (store (select .cse1 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) v_prenex_12 v_prenex_14))) (store (store .cse1 |c_ULTIMATE.start_dll_create_~new_head~0#1.base| .cse2) (select .cse2 .cse0) v_ArrVal_2817))) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) 4) |c_ULTIMATE.start_dll_create_~head~0#1.base|)))) (= |c_ULTIMATE.start_dll_create_~head~0#1.offset| 0) (= |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 0) (forall ((v_prenex_12 Int)) (or (< |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| v_prenex_12) (forall ((v_prenex_15 Int) (v_prenex_10 (Array Int Int))) (let ((.cse4 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_prenex_10))) (let ((.cse3 (store (select .cse4 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) v_prenex_12 v_prenex_15))) (or (not (<= 0 (select .cse3 .cse0))) (forall ((v_prenex_14 Int) (v_prenex_13 (Array Int Int)) (v_prenex_11 (Array Int Int))) (< (select (select (store (store .cse4 |c_ULTIMATE.start_dll_create_~new_head~0#1.base| .cse3) (select (store (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_prenex_11) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) v_prenex_12 v_prenex_14) .cse0) v_prenex_13) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) 4) (+ |c_ULTIMATE.start_dll_create_~head~0#1.offset| 5))))))))) (= (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) .cse0) |c_ULTIMATE.start_dll_create_~head~0#1.base|) (= .cse5 0) (not (= |c_ULTIMATE.start_dll_create_~new_head~0#1.base| |c_ULTIMATE.start_dll_create_~head~0#1.base|)) (= |c_ULTIMATE.start_dll_create_~head~0#1.offset| .cse5) (<= 12 (select |c_#length| |c_ULTIMATE.start_dll_create_~head~0#1.base|)) (forall ((v_ArrVal_2812 (Array Int Int)) (v_ArrVal_2811 (Array Int Int)) (|v_ULTIMATE.start_dll_update_at_~head#1.offset_118| Int) (v_ArrVal_2818 (Array Int Int)) (v_ArrVal_2814 Int) (v_ArrVal_2813 Int)) (let ((.cse6 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_2812))) (let ((.cse7 (store (select .cse6 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_118| v_ArrVal_2813))) (or (<= 0 (+ (select (select (store (store .cse6 |c_ULTIMATE.start_dll_create_~new_head~0#1.base| .cse7) (select (store (select (store |c_#memory_$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_118| v_ArrVal_2814) .cse0) v_ArrVal_2818) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) 4) 4)) (< |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_118|) (not (<= 0 (select .cse7 .cse0)))))))))) is different from false [2022-11-03 02:40:21,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:40:21,059 INFO L93 Difference]: Finished difference Result 61 states and 61 transitions. [2022-11-03 02:40:21,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-03 02:40:21,060 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 45 states have (on average 2.6) internal successors, (117), 46 states have internal predecessors, (117), 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 [2022-11-03 02:40:21,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:40:21,060 INFO L225 Difference]: With dead ends: 61 [2022-11-03 02:40:21,060 INFO L226 Difference]: Without dead ends: 61 [2022-11-03 02:40:21,061 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 90 SyntacticMatches, 1 SemanticMatches, 83 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 1827 ImplicationChecksByTransitivity, 200.7s TimeCoverageRelationStatistics Valid=529, Invalid=5878, Unknown=89, NotChecked=644, Total=7140 [2022-11-03 02:40:21,062 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 176 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 680 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 1079 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 680 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 365 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-03 02:40:21,062 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [176 Valid, 91 Invalid, 1079 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 680 Invalid, 0 Unknown, 365 Unchecked, 0.5s Time] [2022-11-03 02:40:21,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2022-11-03 02:40:21,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 56. [2022-11-03 02:40:21,063 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) [2022-11-03 02:40:21,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 57 transitions. [2022-11-03 02:40:21,064 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 57 transitions. Word has length 44 [2022-11-03 02:40:21,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:40:21,064 INFO L495 AbstractCegarLoop]: Abstraction has 56 states and 57 transitions. [2022-11-03 02:40:21,064 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 45 states have (on average 2.6) internal successors, (117), 46 states have internal predecessors, (117), 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) [2022-11-03 02:40:21,065 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 57 transitions. [2022-11-03 02:40:21,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-11-03 02:40:21,065 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:40:21,065 INFO L195 NwaCegarLoop]: 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] [2022-11-03 02:40:21,097 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_654ffbce-fddd-43d7-97a9-56350347d9c0/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2022-11-03 02:40:21,270 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_654ffbce-fddd-43d7-97a9-56350347d9c0/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:40:21,271 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 20 more)] === [2022-11-03 02:40:21,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:40:21,271 INFO L85 PathProgramCache]: Analyzing trace with hash 814427220, now seen corresponding path program 1 times [2022-11-03 02:40:21,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:40:21,271 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567072786] [2022-11-03 02:40:21,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:40:21,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:40:21,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:40:22,382 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 3 proven. 15 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-11-03 02:40:22,383 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:40:22,383 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [567072786] [2022-11-03 02:40:22,383 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [567072786] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:40:22,383 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [423318808] [2022-11-03 02:40:22,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:40:22,383 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:40:22,383 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_654ffbce-fddd-43d7-97a9-56350347d9c0/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:40:22,384 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_654ffbce-fddd-43d7-97a9-56350347d9c0/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:40:22,386 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_654ffbce-fddd-43d7-97a9-56350347d9c0/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2022-11-03 02:40:22,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:40:22,639 INFO L263 TraceCheckSpWp]: Trace formula consists of 403 conjuncts, 73 conjunts are in the unsatisfiable core [2022-11-03 02:40:22,642 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:40:22,664 INFO L390 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 [2022-11-03 02:40:22,747 INFO L356 Elim1Store]: treesize reduction 26, result has 27.8 percent of original size [2022-11-03 02:40:22,747 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 3 case distinctions, treesize of input 22 treesize of output 29 [2022-11-03 02:40:22,811 INFO L390 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 [2022-11-03 02:40:22,863 INFO L390 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 [2022-11-03 02:40:22,892 INFO L356 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-03 02:40:22,892 INFO L390 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 34 treesize of output 35 [2022-11-03 02:40:23,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:40:23,097 INFO L390 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 29 treesize of output 24 [2022-11-03 02:40:23,169 INFO L356 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2022-11-03 02:40:23,170 INFO L390 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 29 treesize of output 32 [2022-11-03 02:40:23,463 INFO L356 Elim1Store]: treesize reduction 20, result has 39.4 percent of original size [2022-11-03 02:40:23,464 INFO L390 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 3 case distinctions, treesize of input 20 treesize of output 22 [2022-11-03 02:40:23,557 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:40:23,557 INFO L390 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 16 [2022-11-03 02:40:23,604 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 2 proven. 20 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-03 02:40:23,604 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:41:14,066 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:41:14,067 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 213 treesize of output 113 [2022-11-03 02:41:14,090 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:41:14,091 INFO L390 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 1095 treesize of output 1041 [2022-11-03 02:41:14,115 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:41:14,135 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:41:14,136 INFO L390 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 1241 treesize of output 1195 [2022-11-03 02:41:15,087 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:41:15,099 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:41:15,099 INFO L390 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 200 treesize of output 192 [2022-11-03 02:41:37,713 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 6 proven. 7 refuted. 9 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-03 02:41:37,714 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [423318808] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:41:37,714 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [987923728] [2022-11-03 02:41:37,715 INFO L159 IcfgInterpreter]: Started Sifa with 25 locations of interest [2022-11-03 02:41:37,716 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 02:41:37,716 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 02:41:37,716 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 02:41:37,716 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 02:41:37,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:41:37,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:41:37,748 INFO L390 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 [2022-11-03 02:41:37,767 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:41:37,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:41:37,778 INFO L390 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 [2022-11-03 02:41:37,788 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:41:37,806 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:41:37,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:41:37,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:41:37,818 INFO L390 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 [2022-11-03 02:41:37,842 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:41:37,860 INFO L390 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 [2022-11-03 02:41:37,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:41:37,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:41:37,875 INFO L390 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 [2022-11-03 02:41:37,887 INFO L390 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 [2022-11-03 02:41:37,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:41:37,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:41:37,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:41:37,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:41:37,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:41:37,939 INFO L390 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 [2022-11-03 02:41:37,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:41:37,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:41:37,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:41:37,985 INFO L390 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 [2022-11-03 02:41:37,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:41:37,997 INFO L390 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 [2022-11-03 02:41:38,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:41:38,012 INFO L390 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 [2022-11-03 02:41:38,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:41:38,036 INFO L390 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 [2022-11-03 02:41:38,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:41:38,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:41:38,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:41:38,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:41:38,054 INFO L390 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 [2022-11-03 02:41:38,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:41:38,069 INFO L390 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 [2022-11-03 02:41:38,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:41:38,110 INFO L390 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 [2022-11-03 02:41:38,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:41:38,130 INFO L390 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 [2022-11-03 02:41:38,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:41:38,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:41:38,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:41:38,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:41:38,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:41:38,154 INFO L390 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 [2022-11-03 02:41:38,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:41:38,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:41:38,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:41:38,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:41:38,207 INFO L390 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 [2022-11-03 02:41:38,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:41:38,221 INFO L390 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 [2022-11-03 02:41:38,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:41:38,238 INFO L390 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 [2022-11-03 02:41:38,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:41:38,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:41:38,454 INFO L356 Elim1Store]: treesize reduction 34, result has 41.4 percent of original size [2022-11-03 02:41:38,454 INFO L390 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 [2022-11-03 02:41:38,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:41:38,500 INFO L390 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 [2022-11-03 02:41:38,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:41:38,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:41:38,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:41:38,517 INFO L390 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 [2022-11-03 02:41:38,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:41:38,532 INFO L390 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 [2022-11-03 02:41:38,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:41:38,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:41:38,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:41:38,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:41:38,574 INFO L390 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 [2022-11-03 02:41:38,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:41:38,591 INFO L390 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 [2022-11-03 02:41:38,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:41:38,605 INFO L390 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 [2022-11-03 02:41:38,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:41:38,632 INFO L390 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 [2022-11-03 02:41:38,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:41:38,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:41:38,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:41:38,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:41:38,664 INFO L390 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 [2022-11-03 02:41:38,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:41:38,685 INFO L390 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 [2022-11-03 02:41:38,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:41:38,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:41:38,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:41:38,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:41:38,727 INFO L390 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 [2022-11-03 02:41:38,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:41:38,741 INFO L390 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 [2022-11-03 02:41:38,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:41:38,760 INFO L390 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 [2022-11-03 02:41:38,798 INFO L390 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 [2022-11-03 02:41:38,804 INFO L390 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 [2022-11-03 02:41:38,819 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:41:38,826 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:41:38,832 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:41:38,843 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:41:38,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:41:38,851 INFO L390 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 [2022-11-03 02:41:38,859 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:41:38,874 INFO L390 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 [2022-11-03 02:41:38,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:41:38,883 INFO L390 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 [2022-11-03 02:41:38,890 INFO L390 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 [2022-11-03 02:41:38,918 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:41:38,934 INFO L356 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-11-03 02:41:38,934 INFO L390 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 [2022-11-03 02:41:38,949 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:41:38,964 INFO L356 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-11-03 02:41:38,964 INFO L390 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 [2022-11-03 02:41:38,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:41:38,981 INFO L390 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 [2022-11-03 02:41:39,039 INFO L390 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 [2022-11-03 02:41:39,047 INFO L390 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 [2022-11-03 02:41:39,061 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:41:39,071 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:41:39,079 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:41:39,092 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:41:39,100 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:41:39,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:41:39,110 INFO L390 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 [2022-11-03 02:41:39,127 INFO L390 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 [2022-11-03 02:41:39,136 INFO L390 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 [2022-11-03 02:41:39,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:41:39,148 INFO L390 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 [2022-11-03 02:41:39,173 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:41:39,189 INFO L356 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-11-03 02:41:39,190 INFO L390 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 [2022-11-03 02:41:39,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:41:39,206 INFO L390 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 [2022-11-03 02:41:39,219 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:41:39,234 INFO L356 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-11-03 02:41:39,234 INFO L390 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 [2022-11-03 02:41:39,347 INFO L390 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 [2022-11-03 02:41:39,362 INFO L390 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 [2022-11-03 02:41:39,372 INFO L390 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 [2022-11-03 02:41:39,463 INFO L390 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 [2022-11-03 02:41:39,471 INFO L390 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 [2022-11-03 02:41:39,483 INFO L390 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 [2022-11-03 02:41:39,566 INFO L390 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 [2022-11-03 02:41:39,576 INFO L390 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 [2022-11-03 02:41:39,589 INFO L390 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 [2022-11-03 02:41:40,077 INFO L356 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-11-03 02:41:40,077 INFO L390 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 [2022-11-03 02:41:40,300 INFO L390 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 [2022-11-03 02:41:40,379 INFO L390 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 [2022-11-03 02:41:40,511 INFO L390 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 [2022-11-03 02:41:40,519 INFO L390 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 [2022-11-03 02:41:40,536 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:41:40,542 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:41:40,549 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:41:40,564 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:41:40,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:41:40,573 INFO L390 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 [2022-11-03 02:41:40,586 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:41:40,604 INFO L390 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 [2022-11-03 02:41:40,612 INFO L390 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 [2022-11-03 02:41:40,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:41:40,625 INFO L390 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 [2022-11-03 02:41:40,663 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 02:41:47,355 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '9623#(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 [2022-11-03 02:41:47,355 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 02:41:47,355 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 02:41:47,355 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 18, 18] total 48 [2022-11-03 02:41:47,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827559816] [2022-11-03 02:41:47,355 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 02:41:47,356 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2022-11-03 02:41:47,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:41:47,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2022-11-03 02:41:47,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=367, Invalid=4550, Unknown=53, NotChecked=0, Total=4970 [2022-11-03 02:41:47,357 INFO L87 Difference]: Start difference. First operand 56 states and 57 transitions. Second operand has 48 states, 48 states have (on average 2.5) internal successors, (120), 48 states have internal predecessors, (120), 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) [2022-11-03 02:41:49,513 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (= |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 0)) (.cse1 (select |c_#valid| 0))) (and (or .cse0 (forall ((v_prenex_19 Int)) (not (= (select |c_#valid| v_prenex_19) 1)))) (= .cse1 0) .cse0 (= (select |c_#valid| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) 1) (forall ((v_ArrVal_2948 Int) (|v_ULTIMATE.start_dll_update_at_~head#1.base_132| Int) (|v_ULTIMATE.start_dll_update_at_~head#1.offset_126| Int) (v_ArrVal_2945 Int) (|v_ULTIMATE.start_dll_update_at_~head#1.offset_125| Int)) (let ((.cse2 (select (let ((.cse3 (store |c_#memory_$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|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_126| v_ArrVal_2945)))) (store .cse3 |v_ULTIMATE.start_dll_update_at_~head#1.base_132| (store (select .cse3 |v_ULTIMATE.start_dll_update_at_~head#1.base_132|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_125| v_ArrVal_2948))) |c_ULTIMATE.start_dll_create_~head~0#1.base|))) (or (not (= (select |c_#valid| (select .cse2 (+ |c_ULTIMATE.start_dll_create_~head~0#1.offset| 4))) 1)) (not (= (select .cse2 4) 0)) (< |c_ULTIMATE.start_dll_create_~head~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_126|)))) (not (= .cse1 1)) (not (= |c_ULTIMATE.start_dll_create_~new_head~0#1.base| 0)) (= (select |c_#valid| |c_ULTIMATE.start_dll_create_~head~0#1.base|) 1))) is different from false [2022-11-03 02:41:50,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:41:50,989 INFO L93 Difference]: Finished difference Result 59 states and 59 transitions. [2022-11-03 02:41:50,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-03 02:41:50,990 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 48 states have (on average 2.5) internal successors, (120), 48 states have internal predecessors, (120), 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 [2022-11-03 02:41:50,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:41:50,990 INFO L225 Difference]: With dead ends: 59 [2022-11-03 02:41:50,990 INFO L226 Difference]: Without dead ends: 59 [2022-11-03 02:41:50,991 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 86 SyntacticMatches, 4 SemanticMatches, 86 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 2485 ImplicationChecksByTransitivity, 83.0s TimeCoverageRelationStatistics Valid=747, Invalid=6685, Unknown=54, NotChecked=170, Total=7656 [2022-11-03 02:41:50,991 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 325 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 676 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 325 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 911 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 676 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 178 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-03 02:41:50,991 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [325 Valid, 155 Invalid, 911 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 676 Invalid, 0 Unknown, 178 Unchecked, 0.5s Time] [2022-11-03 02:41:50,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2022-11-03 02:41:50,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 56. [2022-11-03 02:41:50,993 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) [2022-11-03 02:41:50,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 56 transitions. [2022-11-03 02:41:50,994 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 56 transitions. Word has length 44 [2022-11-03 02:41:50,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:41:50,994 INFO L495 AbstractCegarLoop]: Abstraction has 56 states and 56 transitions. [2022-11-03 02:41:50,994 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 48 states have (on average 2.5) internal successors, (120), 48 states have internal predecessors, (120), 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) [2022-11-03 02:41:50,994 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 56 transitions. [2022-11-03 02:41:50,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-11-03 02:41:50,995 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:41:50,995 INFO L195 NwaCegarLoop]: 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] [2022-11-03 02:41:51,031 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_654ffbce-fddd-43d7-97a9-56350347d9c0/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2022-11-03 02:41:51,214 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_654ffbce-fddd-43d7-97a9-56350347d9c0/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2022-11-03 02:41:51,214 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 20 more)] === [2022-11-03 02:41:51,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:41:51,215 INFO L85 PathProgramCache]: Analyzing trace with hash 979298371, now seen corresponding path program 1 times [2022-11-03 02:41:51,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:41:51,215 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038577424] [2022-11-03 02:41:51,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:41:51,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:41:51,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:41:52,349 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 18 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-11-03 02:41:52,350 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:41:52,350 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038577424] [2022-11-03 02:41:52,350 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1038577424] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:41:52,350 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1887774308] [2022-11-03 02:41:52,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:41:52,350 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:41:52,350 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_654ffbce-fddd-43d7-97a9-56350347d9c0/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:41:52,352 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_654ffbce-fddd-43d7-97a9-56350347d9c0/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:41:52,370 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_654ffbce-fddd-43d7-97a9-56350347d9c0/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2022-11-03 02:41:52,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:41:52,652 INFO L263 TraceCheckSpWp]: Trace formula consists of 408 conjuncts, 59 conjunts are in the unsatisfiable core [2022-11-03 02:41:52,655 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:41:52,659 INFO L390 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 [2022-11-03 02:41:52,743 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-03 02:41:52,744 INFO L390 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 [2022-11-03 02:41:52,775 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:41:52,799 INFO L390 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 34 treesize of output 27 [2022-11-03 02:41:52,836 INFO L356 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-03 02:41:52,836 INFO L390 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 [2022-11-03 02:41:52,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:41:52,942 INFO L390 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 [2022-11-03 02:41:53,058 INFO L356 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-03 02:41:53,058 INFO L390 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 [2022-11-03 02:41:53,186 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:41:53,186 INFO L390 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 21 [2022-11-03 02:41:53,237 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 2 proven. 17 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-03 02:41:53,237 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:41:53,380 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_3076 (Array Int Int))) (< (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_update_at_~head#1.base| v_ArrVal_3076) |c_ULTIMATE.start_main_~s~0#1.base|) 4) |c_#StackHeapBarrier|)) is different from false [2022-11-03 02:41:53,389 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_3076 (Array Int Int))) (< (select (select (store |c_#memory_$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_3076) |c_ULTIMATE.start_main_~s~0#1.base|) 4) |c_#StackHeapBarrier|)) is different from false [2022-11-03 02:41:53,398 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_3076 (Array Int Int))) (< (select (select (store |c_#memory_$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_3076) |c_ULTIMATE.start_main_~s~0#1.base|) 4) |c_#StackHeapBarrier|)) is different from false [2022-11-03 02:41:53,405 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_3076 (Array Int Int)) (v_ArrVal_3075 Int)) (< (select (select (let ((.cse0 (store |c_#memory_$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_3075)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~s~0#1.base|) (+ |c_ULTIMATE.start_main_~s~0#1.offset| 4)) v_ArrVal_3076)) |c_ULTIMATE.start_main_~s~0#1.base|) 4) |c_#StackHeapBarrier|)) is different from false [2022-11-03 02:41:53,422 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_3076 (Array Int Int)) (|v_ULTIMATE.start_dll_update_at_~head#1.offset_133| Int) (v_ArrVal_3075 Int)) (or (< |c_ULTIMATE.start_main_~s~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_133|) (< (select (select (let ((.cse0 (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~s~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_133| v_ArrVal_3075))) (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~s~0#1.base| .cse0) (select .cse0 (+ |c_ULTIMATE.start_main_~s~0#1.offset| 4)) v_ArrVal_3076)) |c_ULTIMATE.start_main_~s~0#1.base|) 4) |c_#StackHeapBarrier|))) is different from false [2022-11-03 02:41:53,434 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_3076 (Array Int Int)) (|v_ULTIMATE.start_dll_update_at_~head#1.offset_133| Int) (v_ArrVal_3075 Int)) (or (< |c_ULTIMATE.start_dll_create_~head~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_133|) (< (select (select (let ((.cse0 (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_133| v_ArrVal_3075))) (store (store |c_#memory_$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_3076)) |c_ULTIMATE.start_dll_create_~head~0#1.base|) 4) |c_#StackHeapBarrier|))) is different from false [2022-11-03 02:41:53,447 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_3076 (Array Int Int)) (|v_ULTIMATE.start_dll_update_at_~head#1.offset_133| Int) (v_ArrVal_3075 Int)) (or (< |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_133|) (< (select (select (let ((.cse0 (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_133| v_ArrVal_3075))) (store (store |c_#memory_$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_3076)) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) 4) |c_#StackHeapBarrier|))) is different from false [2022-11-03 02:41:53,463 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_3076 (Array Int Int)) (|v_ULTIMATE.start_dll_update_at_~head#1.offset_133| Int) (v_ArrVal_3073 (Array Int Int)) (v_ArrVal_3075 Int)) (or (< |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_133|) (< (select (select (let ((.cse0 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_3073))) (let ((.cse1 (store (select .cse0 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_133| v_ArrVal_3075))) (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_3076))) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) 4) |c_#StackHeapBarrier|))) is different from false [2022-11-03 02:41:53,488 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_3076 (Array Int Int)) (v_ArrVal_3071 Int) (|v_ULTIMATE.start_dll_update_at_~head#1.offset_133| Int) (v_ArrVal_3073 (Array Int Int)) (v_ArrVal_3075 Int)) (or (< (select (select (let ((.cse0 (store (store |c_#memory_$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|) (+ 8 |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|) v_ArrVal_3071)) |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_3073))) (let ((.cse1 (store (select .cse0 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_133| v_ArrVal_3075))) (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_3076))) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) 4) |c_#StackHeapBarrier|) (< |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_133|))) is different from false [2022-11-03 02:41:53,502 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:41:53,502 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 81 treesize of output 57 [2022-11-03 02:41:53,506 INFO L390 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 [2022-11-03 02:41:53,510 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:41:53,522 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:41:53,523 INFO L390 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 49 [2022-11-03 02:41:53,528 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:41:53,539 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:41:53,539 INFO L390 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 45 treesize of output 44 [2022-11-03 02:41:53,544 INFO L390 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 72 treesize of output 68 [2022-11-03 02:41:53,818 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 8 trivial. 11 not checked. [2022-11-03 02:41:53,819 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1887774308] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:41:53,819 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1303693701] [2022-11-03 02:41:53,820 INFO L159 IcfgInterpreter]: Started Sifa with 24 locations of interest [2022-11-03 02:41:53,821 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 02:41:53,821 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 02:41:53,821 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 02:41:53,821 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 02:41:53,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:41:53,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:41:53,854 INFO L390 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 [2022-11-03 02:41:53,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:41:53,877 INFO L390 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 [2022-11-03 02:41:53,886 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:41:53,895 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:41:53,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:41:53,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:41:53,916 INFO L390 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 [2022-11-03 02:41:53,928 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:41:53,938 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:41:53,970 INFO L390 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 [2022-11-03 02:41:53,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:41:53,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:41:53,984 INFO L390 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 [2022-11-03 02:41:53,994 INFO L390 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 [2022-11-03 02:41:54,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:41:54,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:41:54,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:41:54,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:41:54,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:41:54,046 INFO L390 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 [2022-11-03 02:41:54,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:41:54,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:41:54,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:41:54,090 INFO L390 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 [2022-11-03 02:41:54,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:41:54,103 INFO L390 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 [2022-11-03 02:41:54,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:41:54,116 INFO L390 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 [2022-11-03 02:41:54,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:41:54,139 INFO L390 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 [2022-11-03 02:41:54,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:41:54,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:41:54,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:41:54,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:41:54,156 INFO L390 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 [2022-11-03 02:41:54,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:41:54,174 INFO L390 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 [2022-11-03 02:41:54,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:41:54,202 INFO L390 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 [2022-11-03 02:41:54,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:41:54,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:41:54,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:41:54,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:41:54,220 INFO L390 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 [2022-11-03 02:41:54,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:41:54,236 INFO L390 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 [2022-11-03 02:41:54,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:41:54,272 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:41:54,273 INFO L390 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 [2022-11-03 02:41:54,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:41:54,287 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:41:54,288 INFO L390 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 [2022-11-03 02:41:54,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:41:54,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:41:54,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:41:54,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:41:54,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:41:54,309 INFO L390 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 [2022-11-03 02:41:54,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:41:54,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:41:54,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:41:54,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:41:54,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:41:54,503 INFO L390 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 [2022-11-03 02:41:54,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:41:54,538 INFO L390 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 [2022-11-03 02:41:54,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:41:54,552 INFO L390 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 [2022-11-03 02:41:54,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:41:54,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:41:54,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:41:54,569 INFO L390 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 [2022-11-03 02:41:54,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:41:54,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:41:54,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:41:54,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:41:54,601 INFO L390 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 [2022-11-03 02:41:54,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:41:54,617 INFO L390 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 [2022-11-03 02:41:54,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:41:54,633 INFO L390 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 [2022-11-03 02:41:54,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:41:54,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:41:54,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:41:54,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:41:54,665 INFO L390 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 [2022-11-03 02:41:54,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:41:54,679 INFO L390 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 [2022-11-03 02:41:54,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:41:54,696 INFO L390 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 [2022-11-03 02:41:54,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:41:54,734 INFO L390 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 [2022-11-03 02:41:54,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:41:54,750 INFO L390 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 [2022-11-03 02:41:54,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:41:54,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:41:54,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:41:54,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:41:54,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:41:54,771 INFO L390 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 [2022-11-03 02:41:54,990 INFO L390 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 [2022-11-03 02:41:55,001 INFO L390 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 [2022-11-03 02:41:55,012 INFO L390 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 [2022-11-03 02:41:55,088 INFO L390 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 [2022-11-03 02:41:55,101 INFO L390 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 [2022-11-03 02:41:55,110 INFO L390 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 [2022-11-03 02:41:55,187 INFO L390 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 [2022-11-03 02:41:55,198 INFO L390 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 [2022-11-03 02:41:55,205 INFO L390 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 [2022-11-03 02:41:55,945 INFO L356 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-11-03 02:41:55,945 INFO L390 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 [2022-11-03 02:41:56,090 INFO L390 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 [2022-11-03 02:41:56,163 INFO L390 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 [2022-11-03 02:41:56,458 INFO L390 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 [2022-11-03 02:41:56,465 INFO L390 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 [2022-11-03 02:41:56,487 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:41:56,494 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:41:56,504 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-03 02:41:56,535 INFO L390 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 [2022-11-03 02:41:56,546 INFO L390 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 [2022-11-03 02:41:56,553 INFO L390 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 [2022-11-03 02:41:56,571 INFO L390 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 [2022-11-03 02:41:56,602 INFO L390 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 [2022-11-03 02:41:56,616 INFO L390 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 [2022-11-03 02:41:56,625 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 02:42:02,447 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '10111#(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_dll_destroy_~head#1.base| |#StackHeapBarrier|)) (<= 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) (<= 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 [2022-11-03 02:42:02,447 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 02:42:02,447 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 02:42:02,447 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 16, 18] total 37 [2022-11-03 02:42:02,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358724954] [2022-11-03 02:42:02,447 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 02:42:02,448 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2022-11-03 02:42:02,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:42:02,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2022-11-03 02:42:02,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=215, Invalid=2362, Unknown=9, NotChecked=954, Total=3540 [2022-11-03 02:42:02,448 INFO L87 Difference]: Start difference. First operand 56 states and 56 transitions. Second operand has 38 states, 37 states have (on average 2.72972972972973) internal successors, (101), 38 states have internal predecessors, (101), 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) [2022-11-03 02:42:02,721 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse2 (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 4))) (let ((.cse3 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) .cse2))) (and (forall ((v_ArrVal_3076 (Array Int Int)) (|v_ULTIMATE.start_dll_update_at_~head#1.offset_133| Int) (v_ArrVal_3073 (Array Int Int)) (v_ArrVal_3075 Int)) (or (< |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_133|) (< (select (select (let ((.cse0 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_3073))) (let ((.cse1 (store (select .cse0 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_133| v_ArrVal_3075))) (store (store .cse0 |c_ULTIMATE.start_dll_create_~new_head~0#1.base| .cse1) (select .cse1 .cse2) v_ArrVal_3076))) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) 4) |c_#StackHeapBarrier|))) (= |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 0) (= (select |c_#valid| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) 1) (<= (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.base| 1) |c_#StackHeapBarrier|) (= .cse3 |c_ULTIMATE.start_dll_create_~head~0#1.base|) (not (= |c_ULTIMATE.start_dll_create_~new_head~0#1.base| |c_ULTIMATE.start_dll_create_~head~0#1.base|)) (<= (+ .cse3 1) |c_#StackHeapBarrier|)))) is different from false [2022-11-03 02:42:02,726 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse2 (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 4))) (let ((.cse3 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) .cse2))) (and (forall ((v_ArrVal_3076 (Array Int Int)) (|v_ULTIMATE.start_dll_update_at_~head#1.offset_133| Int) (v_ArrVal_3073 (Array Int Int)) (v_ArrVal_3075 Int)) (or (< |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_133|) (< (select (select (let ((.cse0 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_3073))) (let ((.cse1 (store (select .cse0 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_133| v_ArrVal_3075))) (store (store .cse0 |c_ULTIMATE.start_dll_create_~new_head~0#1.base| .cse1) (select .cse1 .cse2) v_ArrVal_3076))) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) 4) |c_#StackHeapBarrier|))) (= |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 0) (= .cse3 |c_ULTIMATE.start_dll_create_~head~0#1.base|) (not (= |c_ULTIMATE.start_dll_create_~new_head~0#1.base| |c_ULTIMATE.start_dll_create_~head~0#1.base|)) (<= (+ .cse3 1) |c_#StackHeapBarrier|)))) is different from false [2022-11-03 02:42:02,730 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse3 (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|)) (.cse2 (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 4))) (let ((.cse0 (select .cse3 .cse2))) (and (= |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 0) (not (= .cse0 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|)) (forall ((v_ArrVal_3076 (Array Int Int)) (|v_ULTIMATE.start_dll_update_at_~head#1.offset_133| Int) (v_ArrVal_3075 Int)) (or (< |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_133|) (< (select (select (let ((.cse1 (store .cse3 |v_ULTIMATE.start_dll_update_at_~head#1.offset_133| v_ArrVal_3075))) (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| .cse1) (select .cse1 .cse2) v_ArrVal_3076)) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) 4) |c_#StackHeapBarrier|))) (<= (+ .cse0 1) |c_#StackHeapBarrier|)))) is different from false [2022-11-03 02:42:02,738 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse1 (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base|))) (let ((.cse2 (select .cse1 4))) (and (= |c_ULTIMATE.start_dll_create_~head~0#1.offset| 0) (forall ((v_ArrVal_3076 (Array Int Int)) (|v_ULTIMATE.start_dll_update_at_~head#1.offset_133| Int) (v_ArrVal_3075 Int)) (or (< |c_ULTIMATE.start_dll_create_~head~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_133|) (< (select (select (let ((.cse0 (store .cse1 |v_ULTIMATE.start_dll_update_at_~head#1.offset_133| v_ArrVal_3075))) (store (store |c_#memory_$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_3076)) |c_ULTIMATE.start_dll_create_~head~0#1.base|) 4) |c_#StackHeapBarrier|))) (<= (+ .cse2 1) |c_#StackHeapBarrier|) (not (= .cse2 |c_ULTIMATE.start_dll_create_~head~0#1.base|))))) is different from false [2022-11-03 02:42:02,743 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse2 (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~s~0#1.base|))) (let ((.cse0 (select .cse2 4))) (and (not (= |c_ULTIMATE.start_main_~s~0#1.base| .cse0)) (= |c_ULTIMATE.start_main_~s~0#1.offset| 0) (<= (+ .cse0 1) |c_#StackHeapBarrier|) (forall ((v_ArrVal_3076 (Array Int Int)) (|v_ULTIMATE.start_dll_update_at_~head#1.offset_133| Int) (v_ArrVal_3075 Int)) (or (< |c_ULTIMATE.start_main_~s~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_133|) (< (select (select (let ((.cse1 (store .cse2 |v_ULTIMATE.start_dll_update_at_~head#1.offset_133| v_ArrVal_3075))) (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~s~0#1.base| .cse1) (select .cse1 (+ |c_ULTIMATE.start_main_~s~0#1.offset| 4)) v_ArrVal_3076)) |c_ULTIMATE.start_main_~s~0#1.base|) 4) |c_#StackHeapBarrier|)))))) is different from false [2022-11-03 02:42:03,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:42:03,672 INFO L93 Difference]: Finished difference Result 57 states and 57 transitions. [2022-11-03 02:42:03,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-03 02:42:03,672 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 37 states have (on average 2.72972972972973) internal successors, (101), 38 states have internal predecessors, (101), 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 [2022-11-03 02:42:03,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:42:03,673 INFO L225 Difference]: With dead ends: 57 [2022-11-03 02:42:03,673 INFO L226 Difference]: Without dead ends: 57 [2022-11-03 02:42:03,674 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 94 SyntacticMatches, 8 SemanticMatches, 75 ConstructedPredicates, 14 IntricatePredicates, 0 DeprecatedPredicates, 1078 ImplicationChecksByTransitivity, 7.4s TimeCoverageRelationStatistics Valid=366, Invalid=3582, Unknown=14, NotChecked=1890, Total=5852 [2022-11-03 02:42:03,675 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 176 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 487 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 1050 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 487 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 516 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-03 02:42:03,675 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [176 Valid, 114 Invalid, 1050 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 487 Invalid, 0 Unknown, 516 Unchecked, 0.4s Time] [2022-11-03 02:42:03,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2022-11-03 02:42:03,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2022-11-03 02:42:03,677 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) [2022-11-03 02:42:03,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 57 transitions. [2022-11-03 02:42:03,677 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 57 transitions. Word has length 46 [2022-11-03 02:42:03,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:42:03,677 INFO L495 AbstractCegarLoop]: Abstraction has 57 states and 57 transitions. [2022-11-03 02:42:03,678 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 37 states have (on average 2.72972972972973) internal successors, (101), 38 states have internal predecessors, (101), 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) [2022-11-03 02:42:03,678 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 57 transitions. [2022-11-03 02:42:03,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-11-03 02:42:03,678 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:42:03,679 INFO L195 NwaCegarLoop]: 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] [2022-11-03 02:42:03,707 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_654ffbce-fddd-43d7-97a9-56350347d9c0/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2022-11-03 02:42:03,890 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_654ffbce-fddd-43d7-97a9-56350347d9c0/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2022-11-03 02:42:03,890 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr16REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 20 more)] === [2022-11-03 02:42:03,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:42:03,891 INFO L85 PathProgramCache]: Analyzing trace with hash -1434899795, now seen corresponding path program 2 times [2022-11-03 02:42:03,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:42:03,891 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8173822] [2022-11-03 02:42:03,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:42:03,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:42:03,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:42:06,117 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 3 proven. 24 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-03 02:42:06,117 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:42:06,117 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8173822] [2022-11-03 02:42:06,117 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [8173822] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:42:06,117 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [134670152] [2022-11-03 02:42:06,118 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-03 02:42:06,118 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:42:06,118 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_654ffbce-fddd-43d7-97a9-56350347d9c0/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:42:06,127 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_654ffbce-fddd-43d7-97a9-56350347d9c0/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:42:06,153 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_654ffbce-fddd-43d7-97a9-56350347d9c0/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2022-11-03 02:42:06,447 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-11-03 02:42:06,448 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-03 02:42:06,451 INFO L263 TraceCheckSpWp]: Trace formula consists of 418 conjuncts, 110 conjunts are in the unsatisfiable core [2022-11-03 02:42:06,456 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:42:06,472 INFO L390 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 [2022-11-03 02:42:06,504 INFO L390 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 [2022-11-03 02:42:06,510 INFO L390 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 [2022-11-03 02:42:06,532 INFO L390 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 [2022-11-03 02:42:06,539 INFO L390 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 [2022-11-03 02:42:06,613 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-03 02:42:06,613 INFO L390 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 [2022-11-03 02:42:06,677 INFO L390 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 [2022-11-03 02:42:06,685 INFO L390 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 [2022-11-03 02:42:06,695 INFO L390 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 [2022-11-03 02:42:06,700 INFO L390 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 [2022-11-03 02:42:06,776 INFO L390 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 0 case distinctions, treesize of input 30 treesize of output 32 [2022-11-03 02:42:06,787 INFO L390 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 [2022-11-03 02:42:06,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:42:06,900 INFO L356 Elim1Store]: treesize reduction 82, result has 18.8 percent of original size [2022-11-03 02:42:06,901 INFO L390 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 4 new quantified variables, introduced 5 case distinctions, treesize of input 96 treesize of output 68 [2022-11-03 02:42:06,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:42:06,912 INFO L390 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 39 treesize of output 32 [2022-11-03 02:42:07,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:42:07,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:42:07,214 INFO L356 Elim1Store]: treesize reduction 51, result has 12.1 percent of original size [2022-11-03 02:42:07,214 INFO L390 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 4 new quantified variables, introduced 3 case distinctions, treesize of input 57 treesize of output 53 [2022-11-03 02:42:07,222 INFO L390 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 22 [2022-11-03 02:42:07,469 INFO L356 Elim1Store]: treesize reduction 98, result has 23.4 percent of original size [2022-11-03 02:42:07,470 INFO L390 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 4 new quantified variables, introduced 5 case distinctions, treesize of input 92 treesize of output 68 [2022-11-03 02:42:07,490 INFO L356 Elim1Store]: treesize reduction 19, result has 47.2 percent of original size [2022-11-03 02:42:07,490 INFO L390 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 46 treesize of output 46 [2022-11-03 02:42:11,374 INFO L356 Elim1Store]: treesize reduction 32, result has 56.2 percent of original size [2022-11-03 02:42:11,374 INFO L390 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 4 new quantified variables, introduced 6 case distinctions, treesize of input 100 treesize of output 114 [2022-11-03 02:42:11,467 INFO L356 Elim1Store]: treesize reduction 28, result has 69.9 percent of original size [2022-11-03 02:42:11,468 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 7 new quantified variables, introduced 13 case distinctions, treesize of input 104 treesize of output 129 [2022-11-03 02:42:12,416 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 3 proven. 21 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-03 02:42:12,416 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:42:23,239 WARN L833 $PredicateComparison]: unable to prove that (or (= |c_ULTIMATE.start_main_~s~0#1.base| 0) (not (= |c_ULTIMATE.start_main_~s~0#1.offset| 0)) (let ((.cse4 (+ |c_ULTIMATE.start_main_~s~0#1.offset| 4)) (.cse5 (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_update_at_~head#1.base|))) (and (forall ((v_ArrVal_3218 (Array Int Int)) (|v_ULTIMATE.start_dll_update_at_~head#1.offset_139| Int) (v_ArrVal_3220 Int)) (let ((.cse1 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_update_at_~head#1.base| (store .cse5 |c_ULTIMATE.start_dll_update_at_~head#1.offset| v_ArrVal_3220)))) (let ((.cse3 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_update_at_~head#1.base| v_ArrVal_3218)) (.cse2 (select (select .cse1 |c_ULTIMATE.start_main_~s~0#1.base|) .cse4))) (or (forall ((v_ArrVal_3221 Int)) (= (select (let ((.cse0 (store .cse1 .cse2 (store (select .cse1 .cse2) |v_ULTIMATE.start_dll_update_at_~head#1.offset_139| v_ArrVal_3221)))) (select .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~s~0#1.base|) 4))) 4) 0)) (not (<= |v_ULTIMATE.start_dll_update_at_~head#1.offset_139| (select (select .cse3 |c_ULTIMATE.start_main_~s~0#1.base|) .cse4))) (forall ((v_ArrVal_3222 Int)) (< 0 (select (select (store .cse3 .cse2 (store (select .cse3 .cse2) |v_ULTIMATE.start_dll_update_at_~head#1.offset_139| v_ArrVal_3222)) |c_ULTIMATE.start_main_~s~0#1.base|) 4))))))) (forall ((v_ArrVal_3218 (Array Int Int)) (|v_ULTIMATE.start_dll_update_at_~head#1.offset_139| Int) (v_ArrVal_3220 Int)) (let ((.cse6 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_update_at_~head#1.base| v_ArrVal_3218))) (or (not (<= |v_ULTIMATE.start_dll_update_at_~head#1.offset_139| (select (select .cse6 |c_ULTIMATE.start_main_~s~0#1.base|) .cse4))) (forall ((v_ArrVal_3222 Int)) (let ((.cse8 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_update_at_~head#1.base| (store .cse5 |c_ULTIMATE.start_dll_update_at_~head#1.offset| v_ArrVal_3220)))) (let ((.cse9 (select (select .cse8 |c_ULTIMATE.start_main_~s~0#1.base|) .cse4))) (let ((.cse7 (store .cse6 .cse9 (store (select .cse6 .cse9) |v_ULTIMATE.start_dll_update_at_~head#1.offset_139| v_ArrVal_3222)))) (or (forall ((v_ArrVal_3221 Int)) (= (select (select .cse7 (select (select (store .cse8 .cse9 (store (select .cse8 .cse9) |v_ULTIMATE.start_dll_update_at_~head#1.offset_139| v_ArrVal_3221)) |c_ULTIMATE.start_main_~s~0#1.base|) 4)) 4) 0)) (< 0 (select (select .cse7 |c_ULTIMATE.start_main_~s~0#1.base|) 4))))))))))))) is different from false [2022-11-03 02:42:23,332 WARN L833 $PredicateComparison]: unable to prove that (or (let ((.cse6 (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~s~0#1.base|)) (.cse0 (+ |c_ULTIMATE.start_main_~s~0#1.offset| 4))) (and (forall ((|v_ULTIMATE.start_dll_update_at_~head#1.offset_141| Int)) (or (< |c_ULTIMATE.start_main_~s~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_141|) (forall ((v_ArrVal_3218 (Array Int Int)) (|v_ULTIMATE.start_dll_update_at_~head#1.offset_139| Int) (v_ArrVal_3220 Int)) (let ((.cse4 (store .cse6 |v_ULTIMATE.start_dll_update_at_~head#1.offset_141| v_ArrVal_3220))) (let ((.cse3 (select .cse4 .cse0))) (or (not (<= |v_ULTIMATE.start_dll_update_at_~head#1.offset_139| (select v_ArrVal_3218 .cse0))) (forall ((v_ArrVal_3221 Int)) (= (select (let ((.cse1 (let ((.cse2 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~s~0#1.base| .cse4))) (store .cse2 .cse3 (store (select .cse2 .cse3) |v_ULTIMATE.start_dll_update_at_~head#1.offset_139| v_ArrVal_3221))))) (select .cse1 (select (select .cse1 |c_ULTIMATE.start_main_~s~0#1.base|) 4))) 4) 0)) (forall ((v_ArrVal_3222 Int)) (< 0 (select (select (let ((.cse5 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~s~0#1.base| v_ArrVal_3218))) (store .cse5 .cse3 (store (select .cse5 .cse3) |v_ULTIMATE.start_dll_update_at_~head#1.offset_139| v_ArrVal_3222))) |c_ULTIMATE.start_main_~s~0#1.base|) 4))))))))) (forall ((|v_ULTIMATE.start_dll_update_at_~head#1.offset_141| Int)) (or (forall ((v_ArrVal_3218 (Array Int Int)) (|v_ULTIMATE.start_dll_update_at_~head#1.offset_139| Int) (v_ArrVal_3220 Int)) (or (forall ((v_ArrVal_3222 Int)) (let ((.cse10 (store .cse6 |v_ULTIMATE.start_dll_update_at_~head#1.offset_141| v_ArrVal_3220))) (let ((.cse9 (select .cse10 .cse0))) (let ((.cse7 (let ((.cse11 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~s~0#1.base| v_ArrVal_3218))) (store .cse11 .cse9 (store (select .cse11 .cse9) |v_ULTIMATE.start_dll_update_at_~head#1.offset_139| v_ArrVal_3222))))) (or (forall ((v_ArrVal_3221 Int)) (= (select (select .cse7 (select (select (let ((.cse8 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~s~0#1.base| .cse10))) (store .cse8 .cse9 (store (select .cse8 .cse9) |v_ULTIMATE.start_dll_update_at_~head#1.offset_139| v_ArrVal_3221))) |c_ULTIMATE.start_main_~s~0#1.base|) 4)) 4) 0)) (< 0 (select (select .cse7 |c_ULTIMATE.start_main_~s~0#1.base|) 4))))))) (not (<= |v_ULTIMATE.start_dll_update_at_~head#1.offset_139| (select v_ArrVal_3218 .cse0))))) (< |c_ULTIMATE.start_main_~s~0#1.offset| |v_ULTIMATE.start_dll_update_at_~head#1.offset_141|))))) (= |c_ULTIMATE.start_main_~s~0#1.base| 0) (not (= |c_ULTIMATE.start_main_~s~0#1.offset| 0))) is different from false [2022-11-03 02:42:23,779 WARN L833 $PredicateComparison]: unable to prove that (or (= |c_ULTIMATE.start_dll_create_~new_head~0#1.base| 0) (let ((.cse5 (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|))) (and (forall ((|v_ULTIMATE.start_dll_update_at_~head#1.offset_141| Int)) (or (< 0 |v_ULTIMATE.start_dll_update_at_~head#1.offset_141|) (forall ((v_ArrVal_3218 (Array Int Int)) (|v_ULTIMATE.start_dll_update_at_~head#1.offset_139| Int) (v_ArrVal_3220 Int)) (or (forall ((v_ArrVal_3222 Int)) (let ((.cse3 (store .cse5 |v_ULTIMATE.start_dll_update_at_~head#1.offset_141| v_ArrVal_3220))) (let ((.cse2 (select .cse3 4))) (let ((.cse0 (let ((.cse4 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| v_ArrVal_3218))) (store .cse4 .cse2 (store (select .cse4 .cse2) |v_ULTIMATE.start_dll_update_at_~head#1.offset_139| v_ArrVal_3222))))) (or (< 0 (select (select .cse0 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) 4)) (forall ((v_ArrVal_3221 Int)) (= (select (select .cse0 (select (select (let ((.cse1 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| .cse3))) (store .cse1 .cse2 (store (select .cse1 .cse2) |v_ULTIMATE.start_dll_update_at_~head#1.offset_139| v_ArrVal_3221))) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) 4)) 4) 0))))))) (not (<= |v_ULTIMATE.start_dll_update_at_~head#1.offset_139| (select v_ArrVal_3218 4))))))) (forall ((|v_ULTIMATE.start_dll_update_at_~head#1.offset_141| Int)) (or (< 0 |v_ULTIMATE.start_dll_update_at_~head#1.offset_141|) (forall ((v_ArrVal_3218 (Array Int Int)) (|v_ULTIMATE.start_dll_update_at_~head#1.offset_139| Int) (v_ArrVal_3220 Int)) (let ((.cse10 (store .cse5 |v_ULTIMATE.start_dll_update_at_~head#1.offset_141| v_ArrVal_3220))) (let ((.cse7 (select .cse10 4))) (or (forall ((v_ArrVal_3222 Int)) (< 0 (select (select (let ((.cse6 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| v_ArrVal_3218))) (store .cse6 .cse7 (store (select .cse6 .cse7) |v_ULTIMATE.start_dll_update_at_~head#1.offset_139| v_ArrVal_3222))) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) 4))) (forall ((v_ArrVal_3221 Int)) (= 0 (select (let ((.cse8 (let ((.cse9 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| .cse10))) (store .cse9 .cse7 (store (select .cse9 .cse7) |v_ULTIMATE.start_dll_update_at_~head#1.offset_139| v_ArrVal_3221))))) (select .cse8 (select (select .cse8 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) 4))) 4))) (not (<= |v_ULTIMATE.start_dll_update_at_~head#1.offset_139| (select v_ArrVal_3218 4))))))))))) (not (= |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 0))) is different from false [2022-11-03 02:42:23,847 WARN L833 $PredicateComparison]: unable to prove that (or (= |c_ULTIMATE.start_dll_create_~new_head~0#1.base| 0) (let ((.cse6 (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~head~0#1.base|)) (.cse8 (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base|)) (.cse7 (+ |c_ULTIMATE.start_dll_create_~head~0#1.offset| 8))) (and (forall ((v_ArrVal_3216 Int) (|v_ULTIMATE.start_dll_update_at_~head#1.offset_141| Int) (v_ArrVal_3215 Int)) (or (< 0 |v_ULTIMATE.start_dll_update_at_~head#1.offset_141|) (forall ((v_ArrVal_3218 (Array Int Int)) (|v_ULTIMATE.start_dll_update_at_~head#1.offset_139| Int) (v_ArrVal_3220 Int)) (or (forall ((v_ArrVal_3222 Int)) (let ((.cse3 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base| (store .cse8 .cse7 v_ArrVal_3215)))) (let ((.cse4 (store (select .cse3 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_141| v_ArrVal_3220))) (let ((.cse2 (select .cse4 4))) (let ((.cse0 (let ((.cse5 (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~head~0#1.base| (store .cse6 .cse7 v_ArrVal_3216)) |c_ULTIMATE.start_dll_create_~new_head~0#1.base| v_ArrVal_3218))) (store .cse5 .cse2 (store (select .cse5 .cse2) |v_ULTIMATE.start_dll_update_at_~head#1.offset_139| v_ArrVal_3222))))) (or (forall ((v_ArrVal_3221 Int)) (= (select (select .cse0 (select (select (let ((.cse1 (store .cse3 |c_ULTIMATE.start_dll_create_~new_head~0#1.base| .cse4))) (store .cse1 .cse2 (store (select .cse1 .cse2) |v_ULTIMATE.start_dll_update_at_~head#1.offset_139| v_ArrVal_3221))) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) 4)) 4) 0)) (< 0 (select (select .cse0 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) 4)))))))) (not (<= |v_ULTIMATE.start_dll_update_at_~head#1.offset_139| (select v_ArrVal_3218 4))))))) (forall ((v_ArrVal_3216 Int) (|v_ULTIMATE.start_dll_update_at_~head#1.offset_141| Int) (v_ArrVal_3215 Int)) (or (< 0 |v_ULTIMATE.start_dll_update_at_~head#1.offset_141|) (forall ((v_ArrVal_3218 (Array Int Int)) (|v_ULTIMATE.start_dll_update_at_~head#1.offset_139| Int) (v_ArrVal_3220 Int)) (let ((.cse13 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base| (store .cse8 .cse7 v_ArrVal_3215)))) (let ((.cse14 (store (select .cse13 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_141| v_ArrVal_3220))) (let ((.cse10 (select .cse14 4))) (or (forall ((v_ArrVal_3222 Int)) (< 0 (select (select (let ((.cse9 (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~head~0#1.base| (store .cse6 .cse7 v_ArrVal_3216)) |c_ULTIMATE.start_dll_create_~new_head~0#1.base| v_ArrVal_3218))) (store .cse9 .cse10 (store (select .cse9 .cse10) |v_ULTIMATE.start_dll_update_at_~head#1.offset_139| v_ArrVal_3222))) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) 4))) (forall ((v_ArrVal_3221 Int)) (= (select (let ((.cse11 (let ((.cse12 (store .cse13 |c_ULTIMATE.start_dll_create_~new_head~0#1.base| .cse14))) (store .cse12 .cse10 (store (select .cse12 .cse10) |v_ULTIMATE.start_dll_update_at_~head#1.offset_139| v_ArrVal_3221))))) (select .cse11 (select (select .cse11 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) 4))) 4) 0)) (not (<= |v_ULTIMATE.start_dll_update_at_~head#1.offset_139| (select v_ArrVal_3218 4)))))))))))) (not (= |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 0))) is different from false [2022-11-03 02:42:23,997 WARN L833 $PredicateComparison]: unable to prove that (or (= |c_ULTIMATE.start_dll_create_~new_head~0#1.base| 0) (let ((.cse8 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) (+ 8 |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|) 0)))) (let ((.cse9 (select .cse8 |c_ULTIMATE.start_dll_create_~head~0#1.base|)) (.cse7 (+ |c_ULTIMATE.start_dll_create_~head~0#1.offset| 8))) (and (forall ((v_ArrVal_3216 Int) (|v_ULTIMATE.start_dll_update_at_~head#1.offset_141| Int) (v_ArrVal_3213 (Array Int Int)) (v_ArrVal_3215 Int)) (or (< 0 |v_ULTIMATE.start_dll_update_at_~head#1.offset_141|) (forall ((v_ArrVal_3218 (Array Int Int)) (|v_ULTIMATE.start_dll_update_at_~head#1.offset_139| Int) (v_ArrVal_3220 Int)) (or (forall ((v_ArrVal_3222 Int)) (let ((.cse3 (store .cse8 |c_ULTIMATE.start_dll_create_~head~0#1.base| (store .cse9 .cse7 v_ArrVal_3215)))) (let ((.cse4 (store (select .cse3 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_141| v_ArrVal_3220))) (let ((.cse2 (select .cse4 4))) (let ((.cse0 (let ((.cse5 (store (let ((.cse6 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| v_ArrVal_3213))) (store .cse6 |c_ULTIMATE.start_dll_create_~head~0#1.base| (store (select .cse6 |c_ULTIMATE.start_dll_create_~head~0#1.base|) .cse7 v_ArrVal_3216))) |c_ULTIMATE.start_dll_create_~new_head~0#1.base| v_ArrVal_3218))) (store .cse5 .cse2 (store (select .cse5 .cse2) |v_ULTIMATE.start_dll_update_at_~head#1.offset_139| v_ArrVal_3222))))) (or (< 0 (select (select .cse0 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) 4)) (forall ((v_ArrVal_3221 Int)) (= (select (select .cse0 (select (select (let ((.cse1 (store .cse3 |c_ULTIMATE.start_dll_create_~new_head~0#1.base| .cse4))) (store .cse1 .cse2 (store (select .cse1 .cse2) |v_ULTIMATE.start_dll_update_at_~head#1.offset_139| v_ArrVal_3221))) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) 4)) 4) 0)))))))) (not (<= |v_ULTIMATE.start_dll_update_at_~head#1.offset_139| (select v_ArrVal_3218 4))))))) (forall ((v_ArrVal_3216 Int) (|v_ULTIMATE.start_dll_update_at_~head#1.offset_141| Int) (v_ArrVal_3213 (Array Int Int)) (v_ArrVal_3215 Int)) (or (< 0 |v_ULTIMATE.start_dll_update_at_~head#1.offset_141|) (forall ((v_ArrVal_3218 (Array Int Int)) (|v_ULTIMATE.start_dll_update_at_~head#1.offset_139| Int) (v_ArrVal_3220 Int)) (let ((.cse13 (store .cse8 |c_ULTIMATE.start_dll_create_~head~0#1.base| (store .cse9 .cse7 v_ArrVal_3215)))) (let ((.cse14 (store (select .cse13 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_141| v_ArrVal_3220))) (let ((.cse12 (select .cse14 4))) (or (forall ((v_ArrVal_3221 Int)) (= (select (let ((.cse10 (let ((.cse11 (store .cse13 |c_ULTIMATE.start_dll_create_~new_head~0#1.base| .cse14))) (store .cse11 .cse12 (store (select .cse11 .cse12) |v_ULTIMATE.start_dll_update_at_~head#1.offset_139| v_ArrVal_3221))))) (select .cse10 (select (select .cse10 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) 4))) 4) 0)) (forall ((v_ArrVal_3222 Int)) (< 0 (select (select (let ((.cse15 (store (let ((.cse16 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| v_ArrVal_3213))) (store .cse16 |c_ULTIMATE.start_dll_create_~head~0#1.base| (store (select .cse16 |c_ULTIMATE.start_dll_create_~head~0#1.base|) .cse7 v_ArrVal_3216))) |c_ULTIMATE.start_dll_create_~new_head~0#1.base| v_ArrVal_3218))) (store .cse15 .cse12 (store (select .cse15 .cse12) |v_ULTIMATE.start_dll_update_at_~head#1.offset_139| v_ArrVal_3222))) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) 4))) (not (<= |v_ULTIMATE.start_dll_update_at_~head#1.offset_139| (select v_ArrVal_3218 4))))))))))))) (not (= |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 0))) is different from false [2022-11-03 02:42:24,099 WARN L833 $PredicateComparison]: unable to prove that (or (let ((.cse8 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) 4 |c_ULTIMATE.start_dll_create_~head~0#1.base|) 8 0)))) (let ((.cse9 (select .cse8 |c_ULTIMATE.start_dll_create_~head~0#1.base|)) (.cse7 (+ |c_ULTIMATE.start_dll_create_~head~0#1.offset| 8))) (and (forall ((v_ArrVal_3216 Int) (|v_ULTIMATE.start_dll_update_at_~head#1.offset_141| Int) (v_ArrVal_3213 (Array Int Int)) (v_ArrVal_3215 Int)) (or (< 0 |v_ULTIMATE.start_dll_update_at_~head#1.offset_141|) (forall ((v_ArrVal_3218 (Array Int Int)) (|v_ULTIMATE.start_dll_update_at_~head#1.offset_139| Int) (v_ArrVal_3220 Int)) (or (forall ((v_ArrVal_3222 Int)) (let ((.cse3 (store .cse8 |c_ULTIMATE.start_dll_create_~head~0#1.base| (store .cse9 .cse7 v_ArrVal_3215)))) (let ((.cse4 (store (select .cse3 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_141| v_ArrVal_3220))) (let ((.cse2 (select .cse4 4))) (let ((.cse0 (let ((.cse5 (store (let ((.cse6 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| v_ArrVal_3213))) (store .cse6 |c_ULTIMATE.start_dll_create_~head~0#1.base| (store (select .cse6 |c_ULTIMATE.start_dll_create_~head~0#1.base|) .cse7 v_ArrVal_3216))) |c_ULTIMATE.start_dll_create_~new_head~0#1.base| v_ArrVal_3218))) (store .cse5 .cse2 (store (select .cse5 .cse2) |v_ULTIMATE.start_dll_update_at_~head#1.offset_139| v_ArrVal_3222))))) (or (< 0 (select (select .cse0 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) 4)) (forall ((v_ArrVal_3221 Int)) (= (select (select .cse0 (select (select (let ((.cse1 (store .cse3 |c_ULTIMATE.start_dll_create_~new_head~0#1.base| .cse4))) (store .cse1 .cse2 (store (select .cse1 .cse2) |v_ULTIMATE.start_dll_update_at_~head#1.offset_139| v_ArrVal_3221))) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) 4)) 4) 0)))))))) (not (<= |v_ULTIMATE.start_dll_update_at_~head#1.offset_139| (select v_ArrVal_3218 4))))))) (forall ((v_ArrVal_3216 Int) (|v_ULTIMATE.start_dll_update_at_~head#1.offset_141| Int) (v_ArrVal_3213 (Array Int Int)) (v_ArrVal_3215 Int)) (or (< 0 |v_ULTIMATE.start_dll_update_at_~head#1.offset_141|) (forall ((v_ArrVal_3218 (Array Int Int)) (|v_ULTIMATE.start_dll_update_at_~head#1.offset_139| Int) (v_ArrVal_3220 Int)) (let ((.cse15 (store .cse8 |c_ULTIMATE.start_dll_create_~head~0#1.base| (store .cse9 .cse7 v_ArrVal_3215)))) (let ((.cse16 (store (select .cse15 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_141| v_ArrVal_3220))) (let ((.cse11 (select .cse16 4))) (or (forall ((v_ArrVal_3222 Int)) (< 0 (select (select (let ((.cse10 (store (let ((.cse12 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| v_ArrVal_3213))) (store .cse12 |c_ULTIMATE.start_dll_create_~head~0#1.base| (store (select .cse12 |c_ULTIMATE.start_dll_create_~head~0#1.base|) .cse7 v_ArrVal_3216))) |c_ULTIMATE.start_dll_create_~new_head~0#1.base| v_ArrVal_3218))) (store .cse10 .cse11 (store (select .cse10 .cse11) |v_ULTIMATE.start_dll_update_at_~head#1.offset_139| v_ArrVal_3222))) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) 4))) (not (<= |v_ULTIMATE.start_dll_update_at_~head#1.offset_139| (select v_ArrVal_3218 4))) (forall ((v_ArrVal_3221 Int)) (= (select (let ((.cse13 (let ((.cse14 (store .cse15 |c_ULTIMATE.start_dll_create_~new_head~0#1.base| .cse16))) (store .cse14 .cse11 (store (select .cse14 .cse11) |v_ULTIMATE.start_dll_update_at_~head#1.offset_139| v_ArrVal_3221))))) (select .cse13 (select (select .cse13 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) 4))) 4) 0)))))))))))) (= |c_ULTIMATE.start_dll_create_~new_head~0#1.base| 0)) is different from false [2022-11-03 02:42:24,147 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:42:24,148 INFO L390 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 457 treesize of output 349 [2022-11-03 02:42:24,223 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:42:24,223 INFO L390 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 547 treesize of output 391 [2022-11-03 02:42:24,308 WARN L833 $PredicateComparison]: unable to prove that (or (= |c_ULTIMATE.start_dll_create_~new_head~0#1.base| 0) (let ((.cse3 (+ |c_ULTIMATE.start_dll_create_~head~0#1.offset| 8))) (and (forall ((v_ArrVal_3216 Int) (|v_ULTIMATE.start_dll_update_at_~head#1.offset_141| Int) (v_arrayElimArr_28 (Array Int Int)) (v_ArrVal_3215 Int) (v_ArrVal_3213 (Array Int Int)) (v_ArrVal_3221 Int) (v_ArrVal_3222 Int) (v_ArrVal_3218 (Array Int Int)) (|v_ULTIMATE.start_dll_update_at_~head#1.offset_139| Int) (v_ArrVal_3220 Int)) (let ((.cse6 (let ((.cse8 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| v_arrayElimArr_28))) (store .cse8 |c_ULTIMATE.start_dll_create_~head~0#1.base| (store (select .cse8 |c_ULTIMATE.start_dll_create_~head~0#1.base|) .cse3 v_ArrVal_3215))))) (let ((.cse7 (store (select .cse6 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_141| v_ArrVal_3220))) (let ((.cse1 (select .cse7 4))) (or (< 0 |v_ULTIMATE.start_dll_update_at_~head#1.offset_141|) (not (= (select v_arrayElimArr_28 8) 0)) (< 0 (select (select (let ((.cse0 (store (let ((.cse2 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| v_ArrVal_3213))) (store .cse2 |c_ULTIMATE.start_dll_create_~head~0#1.base| (store (select .cse2 |c_ULTIMATE.start_dll_create_~head~0#1.base|) .cse3 v_ArrVal_3216))) |c_ULTIMATE.start_dll_create_~new_head~0#1.base| v_ArrVal_3218))) (store .cse0 .cse1 (store (select .cse0 .cse1) |v_ULTIMATE.start_dll_update_at_~head#1.offset_139| v_ArrVal_3222))) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) 4)) (not (= (select v_arrayElimArr_28 4) |c_ULTIMATE.start_dll_create_~head~0#1.base|)) (not (<= |v_ULTIMATE.start_dll_update_at_~head#1.offset_139| (select v_ArrVal_3218 4))) (= (select (let ((.cse4 (let ((.cse5 (store .cse6 |c_ULTIMATE.start_dll_create_~new_head~0#1.base| .cse7))) (store .cse5 .cse1 (store (select .cse5 .cse1) |v_ULTIMATE.start_dll_update_at_~head#1.offset_139| v_ArrVal_3221))))) (select .cse4 (select (select .cse4 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) 4))) 4) 0)))))) (forall ((v_ArrVal_3216 Int) (|v_ULTIMATE.start_dll_update_at_~head#1.offset_141| Int) (v_arrayElimArr_27 (Array Int Int)) (v_ArrVal_3215 Int) (v_ArrVal_3213 (Array Int Int)) (v_ArrVal_3221 Int) (v_ArrVal_3222 Int) (v_ArrVal_3218 (Array Int Int)) (|v_ULTIMATE.start_dll_update_at_~head#1.offset_139| Int) (v_ArrVal_3220 Int)) (let ((.cse12 (let ((.cse16 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| v_arrayElimArr_27))) (store .cse16 |c_ULTIMATE.start_dll_create_~head~0#1.base| (store (select .cse16 |c_ULTIMATE.start_dll_create_~head~0#1.base|) .cse3 v_ArrVal_3215))))) (let ((.cse13 (store (select .cse12 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) |v_ULTIMATE.start_dll_update_at_~head#1.offset_141| v_ArrVal_3220))) (let ((.cse11 (select .cse13 4))) (let ((.cse9 (let ((.cse14 (store (let ((.cse15 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| v_ArrVal_3213))) (store .cse15 |c_ULTIMATE.start_dll_create_~head~0#1.base| (store (select .cse15 |c_ULTIMATE.start_dll_create_~head~0#1.base|) .cse3 v_ArrVal_3216))) |c_ULTIMATE.start_dll_create_~new_head~0#1.base| v_ArrVal_3218))) (store .cse14 .cse11 (store (select .cse14 .cse11) |v_ULTIMATE.start_dll_update_at_~head#1.offset_139| v_ArrVal_3222))))) (or (< 0 |v_ULTIMATE.start_dll_update_at_~head#1.offset_141|) (not (= (select v_arrayElimArr_27 8) 0)) (= (select (select .cse9 (select (select (let ((.cse10 (store .cse12 |c_ULTIMATE.start_dll_create_~new_head~0#1.base| .cse13))) (store .cse10 .cse11 (store (select .cse10 .cse11) |v_ULTIMATE.start_dll_update_at_~head#1.offset_139| v_ArrVal_3221))) |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) 4)) 4) 0) (< 0 (select (select .cse9 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) 4)) (not (= (select v_arrayElimArr_27 4) |c_ULTIMATE.start_dll_create_~head~0#1.base|)) (not (<= |v_ULTIMATE.start_dll_update_at_~head#1.offset_139| (select v_ArrVal_3218 4)))))))))))) is different from false [2022-11-03 02:42:44,349 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:42:44,350 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 859 treesize of output 459 [2022-11-03 02:42:44,379 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:42:44,379 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 159 treesize of output 120 [2022-11-03 02:42:46,155 INFO L356 Elim1Store]: treesize reduction 992, result has 19.8 percent of original size [2022-11-03 02:42:46,159 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 13 select indices, 13 select index equivalence classes, 0 disjoint index pairs (out of 78 index pairs), introduced 19 new quantified variables, introduced 78 case distinctions, treesize of input 2458397 treesize of output 2391831 [2022-11-03 02:44:12,825 WARN L234 SmtUtils]: Spent 1.44m on a formula simplification. DAG size of input: 1926 DAG size of output: 1900 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-03 02:44:16,117 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:44:16,188 INFO L390 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 5265346 treesize of output 4923470