./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/list-simple/dll2n_append_equal.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability 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_84f73a98-6ba7-47ba-9041-43c9024ecefb/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84f73a98-6ba7-47ba-9041-43c9024ecefb/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_84f73a98-6ba7-47ba-9041-43c9024ecefb/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84f73a98-6ba7-47ba-9041-43c9024ecefb/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/list-simple/dll2n_append_equal.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84f73a98-6ba7-47ba-9041-43c9024ecefb/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84f73a98-6ba7-47ba-9041-43c9024ecefb/bin/utaipan-7li7fVZpFI --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3a59620f668b7c0725f940bc66e10441fbb56ee9b9fb687de4bd19a3f12eaeda --- 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 01:47:55,006 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 01:47:55,012 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 01:47:55,074 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 01:47:55,075 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 01:47:55,081 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 01:47:55,083 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 01:47:55,087 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 01:47:55,093 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 01:47:55,095 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 01:47:55,096 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 01:47:55,098 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 01:47:55,101 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 01:47:55,105 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 01:47:55,107 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 01:47:55,109 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 01:47:55,112 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 01:47:55,120 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 01:47:55,123 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 01:47:55,128 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 01:47:55,129 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 01:47:55,133 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 01:47:55,134 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 01:47:55,136 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 01:47:55,141 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 01:47:55,147 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 01:47:55,148 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 01:47:55,149 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 01:47:55,151 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 01:47:55,152 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 01:47:55,152 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 01:47:55,153 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 01:47:55,155 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 01:47:55,157 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 01:47:55,159 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 01:47:55,160 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 01:47:55,161 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 01:47:55,161 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 01:47:55,161 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 01:47:55,163 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 01:47:55,163 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 01:47:55,164 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84f73a98-6ba7-47ba-9041-43c9024ecefb/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-03 01:47:55,205 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 01:47:55,205 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 01:47:55,206 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 01:47:55,207 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 01:47:55,208 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 01:47:55,208 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 01:47:55,209 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 01:47:55,209 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 01:47:55,209 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 01:47:55,209 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 01:47:55,211 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 01:47:55,211 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 01:47:55,212 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 01:47:55,212 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 01:47:55,212 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 01:47:55,212 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 01:47:55,213 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 01:47:55,213 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 01:47:55,214 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 01:47:55,214 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-03 01:47:55,214 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 01:47:55,215 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-03 01:47:55,215 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 01:47:55,217 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 01:47:55,217 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 01:47:55,218 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 01:47:55,218 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-03 01:47:55,218 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 01:47:55,218 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 01:47:55,219 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 01:47:55,219 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 01:47:55,220 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 01:47:55,220 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 01:47:55,220 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 01:47:55,221 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 01:47:55,221 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 01:47:55,221 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 01:47:55,221 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 01:47:55,222 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 01:47:55,222 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 01:47:55,222 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 01:47:55,222 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_84f73a98-6ba7-47ba-9041-43c9024ecefb/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84f73a98-6ba7-47ba-9041-43c9024ecefb/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3a59620f668b7c0725f940bc66e10441fbb56ee9b9fb687de4bd19a3f12eaeda [2022-11-03 01:47:55,563 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 01:47:55,610 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 01:47:55,613 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 01:47:55,615 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 01:47:55,616 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 01:47:55,618 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84f73a98-6ba7-47ba-9041-43c9024ecefb/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/list-simple/dll2n_append_equal.i [2022-11-03 01:47:55,705 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84f73a98-6ba7-47ba-9041-43c9024ecefb/bin/utaipan-7li7fVZpFI/data/fec0f5acb/deb177d6444a4afe9156da21459281f6/FLAGd87624adc [2022-11-03 01:47:56,357 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 01:47:56,358 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84f73a98-6ba7-47ba-9041-43c9024ecefb/sv-benchmarks/c/list-simple/dll2n_append_equal.i [2022-11-03 01:47:56,374 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84f73a98-6ba7-47ba-9041-43c9024ecefb/bin/utaipan-7li7fVZpFI/data/fec0f5acb/deb177d6444a4afe9156da21459281f6/FLAGd87624adc [2022-11-03 01:47:56,593 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84f73a98-6ba7-47ba-9041-43c9024ecefb/bin/utaipan-7li7fVZpFI/data/fec0f5acb/deb177d6444a4afe9156da21459281f6 [2022-11-03 01:47:56,596 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 01:47:56,598 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 01:47:56,600 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 01:47:56,600 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 01:47:56,605 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 01:47:56,606 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:47:56" (1/1) ... [2022-11-03 01:47:56,607 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@797680a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:47:56, skipping insertion in model container [2022-11-03 01:47:56,608 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:47:56" (1/1) ... [2022-11-03 01:47:56,617 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 01:47:56,656 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 01:47:57,196 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_84f73a98-6ba7-47ba-9041-43c9024ecefb/sv-benchmarks/c/list-simple/dll2n_append_equal.i[24333,24346] [2022-11-03 01:47:57,204 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 01:47:57,223 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 01:47:57,309 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_84f73a98-6ba7-47ba-9041-43c9024ecefb/sv-benchmarks/c/list-simple/dll2n_append_equal.i[24333,24346] [2022-11-03 01:47:57,313 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 01:47:57,354 INFO L208 MainTranslator]: Completed translation [2022-11-03 01:47:57,355 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:47:57 WrapperNode [2022-11-03 01:47:57,355 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 01:47:57,357 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 01:47:57,357 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 01:47:57,358 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 01:47:57,368 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:47:57" (1/1) ... [2022-11-03 01:47:57,408 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:47:57" (1/1) ... [2022-11-03 01:47:57,452 INFO L138 Inliner]: procedures = 127, calls = 37, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 122 [2022-11-03 01:47:57,454 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 01:47:57,455 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 01:47:57,455 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 01:47:57,455 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 01:47:57,467 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:47:57" (1/1) ... [2022-11-03 01:47:57,467 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:47:57" (1/1) ... [2022-11-03 01:47:57,493 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:47:57" (1/1) ... [2022-11-03 01:47:57,493 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:47:57" (1/1) ... [2022-11-03 01:47:57,501 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:47:57" (1/1) ... [2022-11-03 01:47:57,506 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:47:57" (1/1) ... [2022-11-03 01:47:57,520 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:47:57" (1/1) ... [2022-11-03 01:47:57,521 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:47:57" (1/1) ... [2022-11-03 01:47:57,524 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 01:47:57,525 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 01:47:57,526 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 01:47:57,526 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 01:47:57,542 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:47:57" (1/1) ... [2022-11-03 01:47:57,551 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 01:47:57,564 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84f73a98-6ba7-47ba-9041-43c9024ecefb/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:47:57,584 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84f73a98-6ba7-47ba-9041-43c9024ecefb/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 01:47:57,617 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84f73a98-6ba7-47ba-9041-43c9024ecefb/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 01:47:57,645 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-03 01:47:57,646 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-03 01:47:57,646 INFO L130 BoogieDeclarations]: Found specification of procedure node_create [2022-11-03 01:47:57,646 INFO L138 BoogieDeclarations]: Found implementation of procedure node_create [2022-11-03 01:47:57,646 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-03 01:47:57,647 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 01:47:57,647 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 01:47:57,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-03 01:47:57,647 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-03 01:47:57,648 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 01:47:57,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-03 01:47:57,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 01:47:57,648 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 01:47:57,649 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 01:47:57,811 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 01:47:57,813 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 01:47:58,208 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 01:47:58,304 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 01:47:58,304 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-03 01:47:58,307 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:47:58 BoogieIcfgContainer [2022-11-03 01:47:58,308 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 01:47:58,310 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 01:47:58,311 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 01:47:58,315 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 01:47:58,316 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 01:47:56" (1/3) ... [2022-11-03 01:47:58,317 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2624fbfc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:47:58, skipping insertion in model container [2022-11-03 01:47:58,317 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:47:57" (2/3) ... [2022-11-03 01:47:58,318 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2624fbfc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:47:58, skipping insertion in model container [2022-11-03 01:47:58,318 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:47:58" (3/3) ... [2022-11-03 01:47:58,320 INFO L112 eAbstractionObserver]: Analyzing ICFG dll2n_append_equal.i [2022-11-03 01:47:58,343 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 01:47:58,343 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 01:47:58,433 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 01:47:58,441 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=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@1dd8349b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 01:47:58,442 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 01:47:58,454 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 18 states have (on average 1.5555555555555556) internal successors, (28), 19 states have internal predecessors, (28), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-03 01:47:58,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-03 01:47:58,464 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:47:58,465 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:47:58,466 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:47:58,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:47:58,474 INFO L85 PathProgramCache]: Analyzing trace with hash -1994480883, now seen corresponding path program 1 times [2022-11-03 01:47:58,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:47:58,488 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722752934] [2022-11-03 01:47:58,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:47:58,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:47:58,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:47:58,941 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 01:47:58,942 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:47:58,942 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1722752934] [2022-11-03 01:47:58,943 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1722752934] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:47:58,944 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:47:58,944 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 01:47:58,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023562605] [2022-11-03 01:47:58,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:47:58,962 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 01:47:58,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:47:59,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 01:47:59,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:47:59,007 INFO L87 Difference]: Start difference. First operand has 23 states, 18 states have (on average 1.5555555555555556) internal successors, (28), 19 states have internal predecessors, (28), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-03 01:47:59,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:47:59,086 INFO L93 Difference]: Finished difference Result 45 states and 63 transitions. [2022-11-03 01:47:59,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 01:47:59,090 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2022-11-03 01:47:59,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:47:59,099 INFO L225 Difference]: With dead ends: 45 [2022-11-03 01:47:59,099 INFO L226 Difference]: Without dead ends: 22 [2022-11-03 01:47:59,102 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 01:47:59,107 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 1 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 01:47:59,108 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 45 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 01:47:59,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2022-11-03 01:47:59,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 20. [2022-11-03 01:47:59,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 16 states have (on average 1.3125) internal successors, (21), 16 states have internal predecessors, (21), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-03 01:47:59,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 25 transitions. [2022-11-03 01:47:59,157 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 25 transitions. Word has length 12 [2022-11-03 01:47:59,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:47:59,158 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 25 transitions. [2022-11-03 01:47:59,159 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-03 01:47:59,160 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 25 transitions. [2022-11-03 01:47:59,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-03 01:47:59,163 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:47:59,163 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:47:59,164 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 01:47:59,164 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:47:59,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:47:59,168 INFO L85 PathProgramCache]: Analyzing trace with hash -927493003, now seen corresponding path program 1 times [2022-11-03 01:47:59,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:47:59,169 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823423928] [2022-11-03 01:47:59,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:47:59,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:47:59,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:47:59,507 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-03 01:47:59,507 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:47:59,508 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823423928] [2022-11-03 01:47:59,508 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1823423928] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 01:47:59,508 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2069204670] [2022-11-03 01:47:59,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:47:59,509 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:47:59,509 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84f73a98-6ba7-47ba-9041-43c9024ecefb/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:47:59,512 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84f73a98-6ba7-47ba-9041-43c9024ecefb/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 01:47:59,553 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84f73a98-6ba7-47ba-9041-43c9024ecefb/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-03 01:47:59,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:47:59,773 INFO L263 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-03 01:47:59,782 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:47:59,875 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 01:47:59,875 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 01:47:59,928 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-03 01:47:59,935 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2069204670] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 01:47:59,938 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [352804422] [2022-11-03 01:47:59,970 INFO L159 IcfgInterpreter]: Started Sifa with 15 locations of interest [2022-11-03 01:47:59,970 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 01:47:59,978 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 01:47:59,986 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 01:47:59,988 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 01:48:00,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:00,114 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-03 01:48:00,115 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 17 treesize of output 26 [2022-11-03 01:48:00,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:00,161 INFO L356 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-03 01:48:00,161 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 27 treesize of output 37 [2022-11-03 01:48:00,267 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 01:48:00,275 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 01:48:00,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:00,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:00,298 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 19 [2022-11-03 01:48:00,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:00,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:00,314 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 19 [2022-11-03 01:48:00,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:00,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:00,350 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2022-11-03 01:48:00,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:00,438 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2022-11-03 01:48:00,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:00,462 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 16 treesize of output 10 [2022-11-03 01:48:00,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:00,593 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2022-11-03 01:48:00,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:00,627 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 16 treesize of output 10 [2022-11-03 01:48:00,908 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:48:00,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:00,961 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 242 treesize of output 219 [2022-11-03 01:48:01,012 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:48:01,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:01,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:01,027 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:48:01,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:01,055 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 227 treesize of output 210 [2022-11-03 01:48:01,098 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:48:01,149 INFO L356 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-11-03 01:48:01,150 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 348 treesize of output 347 [2022-11-03 01:48:01,199 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:48:01,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:01,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:01,209 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:48:01,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:01,226 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 231 treesize of output 115 [2022-11-03 01:48:01,262 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 139 treesize of output 156 [2022-11-03 01:48:01,323 INFO L356 Elim1Store]: treesize reduction 35, result has 2.8 percent of original size [2022-11-03 01:48:01,324 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 3 case distinctions, treesize of input 135 treesize of output 90 [2022-11-03 01:48:01,354 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 5 treesize of output 3 [2022-11-03 01:48:01,372 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 78 treesize of output 50 [2022-11-03 01:48:01,402 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 59 treesize of output 33 [2022-11-03 01:48:01,417 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 28 treesize of output 16 [2022-11-03 01:48:01,433 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 5 treesize of output 3 [2022-11-03 01:48:01,540 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 7 treesize of output 3 [2022-11-03 01:48:01,558 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-11-03 01:48:01,578 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-11-03 01:48:01,595 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 5 treesize of output 3 [2022-11-03 01:48:01,610 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 5 treesize of output 3 [2022-11-03 01:48:01,691 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 5 treesize of output 3 [2022-11-03 01:48:01,705 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 5 treesize of output 3 [2022-11-03 01:48:01,729 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 7 treesize of output 3 [2022-11-03 01:48:01,757 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-11-03 01:48:01,780 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-11-03 01:48:01,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:01,920 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:48:01,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:01,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:01,927 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 141 treesize of output 152 [2022-11-03 01:48:01,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:01,991 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-03 01:48:02,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:02,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:02,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:02,036 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 131 treesize of output 142 [2022-11-03 01:48:02,116 INFO L356 Elim1Store]: treesize reduction 25, result has 35.9 percent of original size [2022-11-03 01:48:02,116 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 78 treesize of output 50 [2022-11-03 01:48:02,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:02,141 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 23 treesize of output 17 [2022-11-03 01:48:02,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:02,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:02,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:02,173 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 32 [2022-11-03 01:48:02,239 INFO L356 Elim1Store]: treesize reduction 25, result has 35.9 percent of original size [2022-11-03 01:48:02,239 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 3 case distinctions, treesize of input 78 treesize of output 50 [2022-11-03 01:48:02,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:02,267 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 23 treesize of output 17 [2022-11-03 01:48:02,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:02,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:02,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:02,291 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 32 [2022-11-03 01:48:02,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:02,321 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 11 [2022-11-03 01:48:02,993 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 7 treesize of output 3 [2022-11-03 01:48:03,005 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 9 treesize of output 3 [2022-11-03 01:48:03,019 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 9 treesize of output 3 [2022-11-03 01:48:03,033 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 01:48:03,370 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 7 treesize of output 3 [2022-11-03 01:48:03,382 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 9 treesize of output 3 [2022-11-03 01:48:03,394 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 9 treesize of output 3 [2022-11-03 01:48:03,408 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 01:48:03,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:03,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:03,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:03,511 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 141 treesize of output 147 [2022-11-03 01:48:03,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:03,548 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:48:03,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:03,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:03,557 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 143 treesize of output 155 [2022-11-03 01:48:03,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:03,592 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 22 treesize of output 7 [2022-11-03 01:48:03,635 INFO L356 Elim1Store]: treesize reduction 23, result has 4.2 percent of original size [2022-11-03 01:48:03,636 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 52 treesize of output 23 [2022-11-03 01:48:03,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:03,652 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 23 treesize of output 17 [2022-11-03 01:48:03,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:03,698 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 57 treesize of output 11 [2022-11-03 01:48:03,738 INFO L356 Elim1Store]: treesize reduction 23, result has 4.2 percent of original size [2022-11-03 01:48:03,739 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 52 treesize of output 23 [2022-11-03 01:48:03,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:03,754 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 23 treesize of output 17 [2022-11-03 01:48:03,995 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 7 treesize of output 3 [2022-11-03 01:48:04,010 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 7 treesize of output 3 [2022-11-03 01:48:04,147 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 7 treesize of output 3 [2022-11-03 01:48:04,162 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 7 treesize of output 3 [2022-11-03 01:48:04,329 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:48:04,356 INFO L356 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2022-11-03 01:48:04,357 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 226 treesize of output 214 [2022-11-03 01:48:04,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:04,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:04,385 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 01:48:04,386 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 221 treesize of output 207 [2022-11-03 01:48:04,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:04,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:04,419 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 01:48:04,420 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 221 treesize of output 207 [2022-11-03 01:48:04,770 INFO L197 IcfgInterpreter]: Interpreting procedure node_create with input of size 43 for LOIs [2022-11-03 01:48:04,891 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 01:48:12,826 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [352804422] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:48:12,826 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-03 01:48:12,827 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [4, 4, 4] total 16 [2022-11-03 01:48:12,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616925049] [2022-11-03 01:48:12,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:48:12,829 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-03 01:48:12,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:48:12,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-03 01:48:12,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2022-11-03 01:48:12,831 INFO L87 Difference]: Start difference. First operand 20 states and 25 transitions. Second operand has 13 states, 10 states have (on average 1.2) internal successors, (12), 9 states have internal predecessors, (12), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-03 01:48:13,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:48:13,279 INFO L93 Difference]: Finished difference Result 33 states and 39 transitions. [2022-11-03 01:48:13,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-03 01:48:13,279 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 10 states have (on average 1.2) internal successors, (12), 9 states have internal predecessors, (12), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 18 [2022-11-03 01:48:13,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:48:13,281 INFO L225 Difference]: With dead ends: 33 [2022-11-03 01:48:13,281 INFO L226 Difference]: Without dead ends: 30 [2022-11-03 01:48:13,282 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 40 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 8.0s TimeCoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2022-11-03 01:48:13,292 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 37 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 21 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-03 01:48:13,294 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 32 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 155 Invalid, 0 Unknown, 21 Unchecked, 0.4s Time] [2022-11-03 01:48:13,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2022-11-03 01:48:13,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 22. [2022-11-03 01:48:13,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 18 states have (on average 1.2777777777777777) internal successors, (23), 18 states have internal predecessors, (23), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-03 01:48:13,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 27 transitions. [2022-11-03 01:48:13,318 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 27 transitions. Word has length 18 [2022-11-03 01:48:13,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:48:13,318 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 27 transitions. [2022-11-03 01:48:13,319 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 10 states have (on average 1.2) internal successors, (12), 9 states have internal predecessors, (12), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-03 01:48:13,319 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 27 transitions. [2022-11-03 01:48:13,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-03 01:48:13,320 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:48:13,321 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:48:13,354 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84f73a98-6ba7-47ba-9041-43c9024ecefb/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-03 01:48:13,526 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84f73a98-6ba7-47ba-9041-43c9024ecefb/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:48:13,527 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:48:13,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:48:13,528 INFO L85 PathProgramCache]: Analyzing trace with hash -927548989, now seen corresponding path program 1 times [2022-11-03 01:48:13,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:48:13,528 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382645045] [2022-11-03 01:48:13,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:48:13,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:48:13,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:48:13,775 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-03 01:48:13,776 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:48:13,776 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [382645045] [2022-11-03 01:48:13,776 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [382645045] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 01:48:13,777 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1658094522] [2022-11-03 01:48:13,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:48:13,777 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:48:13,778 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84f73a98-6ba7-47ba-9041-43c9024ecefb/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:48:13,779 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84f73a98-6ba7-47ba-9041-43c9024ecefb/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 01:48:13,796 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84f73a98-6ba7-47ba-9041-43c9024ecefb/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-03 01:48:13,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:48:13,939 INFO L263 TraceCheckSpWp]: Trace formula consists of 284 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-03 01:48:13,943 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:48:13,963 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 01:48:13,963 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 01:48:13,996 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-03 01:48:13,997 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1658094522] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 01:48:13,997 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [297188933] [2022-11-03 01:48:14,002 INFO L159 IcfgInterpreter]: Started Sifa with 15 locations of interest [2022-11-03 01:48:14,003 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 01:48:14,003 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 01:48:14,004 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 01:48:14,004 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 01:48:14,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:14,057 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-03 01:48:14,058 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 17 treesize of output 26 [2022-11-03 01:48:14,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:14,089 INFO L356 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-03 01:48:14,090 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 27 treesize of output 37 [2022-11-03 01:48:14,133 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 01:48:14,138 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 01:48:14,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:14,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:14,159 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2022-11-03 01:48:14,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:14,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:14,170 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 19 [2022-11-03 01:48:14,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:14,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:14,180 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 19 [2022-11-03 01:48:14,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:14,213 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2022-11-03 01:48:14,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:14,227 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 16 treesize of output 10 [2022-11-03 01:48:14,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:14,283 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 16 treesize of output 10 [2022-11-03 01:48:14,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:14,296 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2022-11-03 01:48:14,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:14,341 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 30 treesize of output 11 [2022-11-03 01:48:14,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:14,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:14,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:14,362 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:48:14,364 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 31 treesize of output 30 [2022-11-03 01:48:14,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:14,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:14,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:14,398 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:48:14,400 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 31 treesize of output 30 [2022-11-03 01:48:14,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:14,492 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2022-11-03 01:48:14,504 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 5 treesize of output 3 [2022-11-03 01:48:14,517 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 7 treesize of output 3 [2022-11-03 01:48:14,528 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 5 treesize of output 3 [2022-11-03 01:48:14,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:14,544 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2022-11-03 01:48:14,599 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 5 treesize of output 3 [2022-11-03 01:48:14,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:14,611 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2022-11-03 01:48:14,625 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 7 treesize of output 3 [2022-11-03 01:48:14,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:14,639 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2022-11-03 01:48:14,654 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 5 treesize of output 3 [2022-11-03 01:48:14,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:14,746 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:48:14,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:14,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:14,751 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 141 treesize of output 147 [2022-11-03 01:48:14,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:14,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:14,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:14,812 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 131 treesize of output 142 [2022-11-03 01:48:14,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:14,855 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 22 treesize of output 7 [2022-11-03 01:48:14,912 INFO L356 Elim1Store]: treesize reduction 25, result has 35.9 percent of original size [2022-11-03 01:48:14,912 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 3 case distinctions, treesize of input 78 treesize of output 50 [2022-11-03 01:48:14,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:14,942 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 23 treesize of output 17 [2022-11-03 01:48:14,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:14,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:14,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:14,961 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 32 [2022-11-03 01:48:15,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:15,013 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 57 treesize of output 11 [2022-11-03 01:48:15,166 INFO L356 Elim1Store]: treesize reduction 64, result has 9.9 percent of original size [2022-11-03 01:48:15,167 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 272 treesize of output 294 [2022-11-03 01:48:15,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:15,191 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 218 treesize of output 184 [2022-11-03 01:48:15,240 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 01:48:15,271 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 100 treesize of output 76 [2022-11-03 01:48:15,579 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 7 treesize of output 3 [2022-11-03 01:48:15,626 INFO L356 Elim1Store]: treesize reduction 8, result has 75.8 percent of original size [2022-11-03 01:48:15,627 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 159 treesize of output 157 [2022-11-03 01:48:15,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:15,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:15,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:15,667 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 01:48:15,667 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 60 treesize of output 36 [2022-11-03 01:48:15,717 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 11 treesize of output 3 [2022-11-03 01:48:15,734 INFO L356 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2022-11-03 01:48:15,735 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 3 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 24 [2022-11-03 01:48:15,751 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 01:48:15,786 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:48:15,792 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 01:48:15,794 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 01:48:15,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:15,989 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 0 case distinctions, treesize of input 135 treesize of output 103 [2022-11-03 01:48:16,003 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 92 treesize of output 56 [2022-11-03 01:48:16,028 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 01:48:16,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:16,040 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 18 treesize of output 12 [2022-11-03 01:48:16,052 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 7 treesize of output 3 [2022-11-03 01:48:16,064 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 01:48:16,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:16,149 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:48:16,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:16,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:16,155 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 141 treesize of output 152 [2022-11-03 01:48:16,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:16,194 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-03 01:48:16,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:16,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:16,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:16,235 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 131 treesize of output 137 [2022-11-03 01:48:16,296 INFO L356 Elim1Store]: treesize reduction 25, result has 35.9 percent of original size [2022-11-03 01:48:16,297 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 3 case distinctions, treesize of input 78 treesize of output 50 [2022-11-03 01:48:16,312 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 13 treesize of output 3 [2022-11-03 01:48:16,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:16,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:16,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:16,335 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 31 [2022-11-03 01:48:16,377 INFO L356 Elim1Store]: treesize reduction 23, result has 4.2 percent of original size [2022-11-03 01:48:16,377 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 52 treesize of output 23 [2022-11-03 01:48:16,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:16,390 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 23 treesize of output 17 [2022-11-03 01:48:16,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:16,434 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 57 treesize of output 11 [2022-11-03 01:48:16,666 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 7 treesize of output 3 [2022-11-03 01:48:16,687 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 7 treesize of output 3 [2022-11-03 01:48:16,783 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 7 treesize of output 3 [2022-11-03 01:48:16,795 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 7 treesize of output 3 [2022-11-03 01:48:16,864 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2022-11-03 01:48:16,874 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2022-11-03 01:48:16,889 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 01:48:17,013 INFO L197 IcfgInterpreter]: Interpreting procedure node_create with input of size 43 for LOIs [2022-11-03 01:48:17,123 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 01:48:23,443 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '424#(and (<= 1 |ULTIMATE.start_dll_create_~data#1|) (<= 0 |ULTIMATE.start_dll_append_#in~head#1.base|) (<= 2 |ULTIMATE.start_dll_create_#in~len#1|) (<= |ULTIMATE.start_dll_append_~data#1| 1) (<= |ULTIMATE.start_dll_create_#res#1.offset| 0) (= |ULTIMATE.start_main_~ptr~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0#1.base|) |ULTIMATE.start_main_~#s~0#1.offset|)) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0#1.base|) |ULTIMATE.start_main_~#s~0#1.offset|) |ULTIMATE.start_main_~ptr~0#1.offset|) (<= |ULTIMATE.start_dll_append_~head#1.offset| 0) (or (not (= |ULTIMATE.start_main_~ptr~0#1.base| 0)) (not (= |ULTIMATE.start_main_~ptr~0#1.offset| 0))) (<= 0 |ULTIMATE.start_dll_append_#in~head#1.offset|) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_dll_append_~head#1.base|) |ULTIMATE.start_dll_append_~head#1.offset|) |ULTIMATE.start_dll_append_~new_last~0#1.offset|) (= |ULTIMATE.start_dll_append_~new_last~0#1.offset| 0) (<= |ULTIMATE.start_dll_create_~data#1| 1) (= |ULTIMATE.start_main_~count~0#1| 0) (not (= |ULTIMATE.start_main_~data~0#1| (select (select |#memory_int| |ULTIMATE.start_main_~ptr~0#1.base|) |ULTIMATE.start_main_~ptr~0#1.offset|))) (= |ULTIMATE.start_main_~data~0#1| 1) (<= 1 |ULTIMATE.start_dll_append_#in~data#1|) (<= |ULTIMATE.start_dll_create_#in~len#1| 2) (= |ULTIMATE.start_main_~#s~0#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) (<= 0 |ULTIMATE.start_dll_append_~head#1.offset|) (<= 0 |ULTIMATE.start_main_~#s~0#1.base|) (<= |ULTIMATE.start_dll_create_#in~data#1| 1) (<= |ULTIMATE.start_dll_append_#in~head#1.offset| 0) (<= |ULTIMATE.start_dll_create_~head~0#1.offset| 0) (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_dll_append_~head#1.base|) |ULTIMATE.start_dll_append_~head#1.offset|) |ULTIMATE.start_dll_append_~new_last~0#1.base|) (<= 1 |ULTIMATE.start_dll_append_~data#1|) (<= 0 |ULTIMATE.start_dll_create_~head~0#1.offset|) (<= 0 |ULTIMATE.start_dll_append_~head#1.base|) (<= |ULTIMATE.start_dll_append_#in~data#1| 1) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_dll_create_#res#1.offset|) (= |#NULL.base| 0))' at error location [2022-11-03 01:48:23,443 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 01:48:23,443 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 01:48:23,444 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 5 [2022-11-03 01:48:23,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27623380] [2022-11-03 01:48:23,444 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 01:48:23,445 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 01:48:23,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:48:23,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 01:48:23,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=255, Unknown=0, NotChecked=0, Total=306 [2022-11-03 01:48:23,446 INFO L87 Difference]: Start difference. First operand 22 states and 27 transitions. Second operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2022-11-03 01:48:23,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:48:23,509 INFO L93 Difference]: Finished difference Result 42 states and 52 transitions. [2022-11-03 01:48:23,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 01:48:23,510 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 18 [2022-11-03 01:48:23,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:48:23,512 INFO L225 Difference]: With dead ends: 42 [2022-11-03 01:48:23,512 INFO L226 Difference]: Without dead ends: 25 [2022-11-03 01:48:23,512 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 38 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=51, Invalid=255, Unknown=0, NotChecked=0, Total=306 [2022-11-03 01:48:23,514 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 2 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 01:48:23,514 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 70 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 01:48:23,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2022-11-03 01:48:23,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2022-11-03 01:48:23,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 20 states have (on average 1.25) internal successors, (25), 20 states have internal predecessors, (25), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-03 01:48:23,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 31 transitions. [2022-11-03 01:48:23,525 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 31 transitions. Word has length 18 [2022-11-03 01:48:23,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:48:23,526 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 31 transitions. [2022-11-03 01:48:23,526 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2022-11-03 01:48:23,526 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 31 transitions. [2022-11-03 01:48:23,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-03 01:48:23,527 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:48:23,527 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:48:23,572 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84f73a98-6ba7-47ba-9041-43c9024ecefb/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-11-03 01:48:23,754 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84f73a98-6ba7-47ba-9041-43c9024ecefb/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:48:23,755 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:48:23,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:48:23,756 INFO L85 PathProgramCache]: Analyzing trace with hash 832503083, now seen corresponding path program 2 times [2022-11-03 01:48:23,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:48:23,756 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147932061] [2022-11-03 01:48:23,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:48:23,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:48:23,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:48:24,369 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 9 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-03 01:48:24,369 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:48:24,369 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147932061] [2022-11-03 01:48:24,370 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [147932061] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 01:48:24,370 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1398171356] [2022-11-03 01:48:24,370 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-03 01:48:24,370 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:48:24,370 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84f73a98-6ba7-47ba-9041-43c9024ecefb/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:48:24,373 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84f73a98-6ba7-47ba-9041-43c9024ecefb/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 01:48:24,394 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84f73a98-6ba7-47ba-9041-43c9024ecefb/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-03 01:48:24,540 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-03 01:48:24,541 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-03 01:48:24,543 INFO L263 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 56 conjunts are in the unsatisfiable core [2022-11-03 01:48:24,548 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:48:24,722 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 11 treesize of output 7 [2022-11-03 01:48:24,910 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 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 01:48:24,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:24,921 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 18 treesize of output 20 [2022-11-03 01:48:24,934 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 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 01:48:24,995 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 28 treesize of output 16 [2022-11-03 01:48:25,003 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 15 treesize of output 7 [2022-11-03 01:48:25,052 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 15 treesize of output 7 [2022-11-03 01:48:25,090 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-03 01:48:25,090 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 01:48:25,091 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1398171356] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:48:25,091 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-03 01:48:25,091 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [13] total 22 [2022-11-03 01:48:25,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277238740] [2022-11-03 01:48:25,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:48:25,093 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-03 01:48:25,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:48:25,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-03 01:48:25,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=411, Unknown=0, NotChecked=0, Total=462 [2022-11-03 01:48:25,097 INFO L87 Difference]: Start difference. First operand 25 states and 31 transitions. Second operand has 11 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 10 states have internal predecessors, (14), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-03 01:48:25,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:48:25,673 INFO L93 Difference]: Finished difference Result 33 states and 40 transitions. [2022-11-03 01:48:25,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-03 01:48:25,674 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 10 states have internal predecessors, (14), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 24 [2022-11-03 01:48:25,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:48:25,677 INFO L225 Difference]: With dead ends: 33 [2022-11-03 01:48:25,677 INFO L226 Difference]: Without dead ends: 31 [2022-11-03 01:48:25,677 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=97, Invalid=659, Unknown=0, NotChecked=0, Total=756 [2022-11-03 01:48:25,678 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 42 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 01:48:25,679 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 57 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-03 01:48:25,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2022-11-03 01:48:25,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 26. [2022-11-03 01:48:25,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 21 states have (on average 1.2380952380952381) internal successors, (26), 21 states have internal predecessors, (26), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-03 01:48:25,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 32 transitions. [2022-11-03 01:48:25,692 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 32 transitions. Word has length 24 [2022-11-03 01:48:25,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:48:25,693 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 32 transitions. [2022-11-03 01:48:25,693 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 10 states have internal predecessors, (14), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-03 01:48:25,693 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 32 transitions. [2022-11-03 01:48:25,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-03 01:48:25,694 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:48:25,694 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:48:25,722 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84f73a98-6ba7-47ba-9041-43c9024ecefb/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-11-03 01:48:25,898 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84f73a98-6ba7-47ba-9041-43c9024ecefb/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:48:25,899 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:48:25,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:48:25,899 INFO L85 PathProgramCache]: Analyzing trace with hash 1171636344, now seen corresponding path program 1 times [2022-11-03 01:48:25,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:48:25,899 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003975384] [2022-11-03 01:48:25,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:48:25,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:48:25,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:48:26,573 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 9 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-03 01:48:26,573 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:48:26,574 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003975384] [2022-11-03 01:48:26,574 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2003975384] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 01:48:26,574 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1219967198] [2022-11-03 01:48:26,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:48:26,574 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:48:26,575 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84f73a98-6ba7-47ba-9041-43c9024ecefb/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:48:26,579 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84f73a98-6ba7-47ba-9041-43c9024ecefb/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 01:48:26,618 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84f73a98-6ba7-47ba-9041-43c9024ecefb/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-03 01:48:26,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:48:26,849 INFO L263 TraceCheckSpWp]: Trace formula consists of 412 conjuncts, 32 conjunts are in the unsatisfiable core [2022-11-03 01:48:26,852 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:48:27,013 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 8 treesize of output 4 [2022-11-03 01:48:27,048 WARN L855 $PredicateComparison]: unable to prove that (exists ((|node_create_~temp~0#1.base| Int)) (and (<= (+ |node_create_~temp~0#1.base| 1) |c_#StackHeapBarrier|) (exists ((v_ArrVal_716 (Array Int Int))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |node_create_~temp~0#1.base| v_ArrVal_716))))) is different from true [2022-11-03 01:48:27,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:27,066 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 15 treesize of output 17 [2022-11-03 01:48:27,104 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 16 treesize of output 8 [2022-11-03 01:48:27,127 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 1 not checked. [2022-11-03 01:48:27,128 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 01:48:27,200 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_719 (Array Int Int)) (|v_node_create_~temp~0#1.base_23| Int)) (or (not (= 0 (select (select (store |c_#memory_$Pointer$.base| |v_node_create_~temp~0#1.base_23| v_ArrVal_719) |c_ULTIMATE.start_dll_append_~head#1.base|) |c_ULTIMATE.start_dll_append_~head#1.offset|))) (not (< |v_node_create_~temp~0#1.base_23| |c_#StackHeapBarrier|)))) is different from false [2022-11-03 01:48:27,202 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1219967198] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 01:48:27,202 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [807774807] [2022-11-03 01:48:27,212 INFO L159 IcfgInterpreter]: Started Sifa with 16 locations of interest [2022-11-03 01:48:27,213 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 01:48:27,213 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 01:48:27,214 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 01:48:27,214 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 01:48:27,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:27,251 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-03 01:48:27,252 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 17 treesize of output 26 [2022-11-03 01:48:27,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:27,282 INFO L356 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-03 01:48:27,283 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 27 treesize of output 37 [2022-11-03 01:48:27,319 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 01:48:27,325 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 01:48:27,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:27,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:27,345 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2022-11-03 01:48:27,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:27,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:27,357 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 19 [2022-11-03 01:48:27,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:27,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:27,366 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 19 [2022-11-03 01:48:27,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:27,395 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 16 treesize of output 10 [2022-11-03 01:48:27,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:27,411 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2022-11-03 01:48:27,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:27,462 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2022-11-03 01:48:27,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:27,480 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 16 treesize of output 10 [2022-11-03 01:48:27,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:27,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:27,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:27,533 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:48:27,534 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 31 treesize of output 30 [2022-11-03 01:48:27,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:27,548 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 30 treesize of output 11 [2022-11-03 01:48:27,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:27,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:27,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:27,572 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:48:27,573 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 31 treesize of output 30 [2022-11-03 01:48:27,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:27,640 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2022-11-03 01:48:27,651 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 5 treesize of output 3 [2022-11-03 01:48:27,662 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 7 treesize of output 3 [2022-11-03 01:48:27,673 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 5 treesize of output 3 [2022-11-03 01:48:27,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:27,689 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2022-11-03 01:48:27,761 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 5 treesize of output 3 [2022-11-03 01:48:27,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:27,772 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2022-11-03 01:48:27,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:27,786 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2022-11-03 01:48:27,799 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 7 treesize of output 3 [2022-11-03 01:48:27,813 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 5 treesize of output 3 [2022-11-03 01:48:27,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:27,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:27,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:27,942 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 141 treesize of output 147 [2022-11-03 01:48:27,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:27,979 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:48:27,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:27,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:27,986 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 143 treesize of output 160 [2022-11-03 01:48:28,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:28,024 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 22 treesize of output 7 [2022-11-03 01:48:28,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:28,081 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 11 [2022-11-03 01:48:28,150 INFO L356 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2022-11-03 01:48:28,151 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 2 case distinctions, treesize of input 198 treesize of output 175 [2022-11-03 01:48:28,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:28,166 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 157 treesize of output 127 [2022-11-03 01:48:28,234 INFO L356 Elim1Store]: treesize reduction 25, result has 35.9 percent of original size [2022-11-03 01:48:28,234 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 100 treesize of output 66 [2022-11-03 01:48:28,250 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 11 treesize of output 3 [2022-11-03 01:48:28,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:28,269 INFO L356 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2022-11-03 01:48:28,270 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 4 new quantified variables, introduced 2 case distinctions, treesize of input 63 treesize of output 46 [2022-11-03 01:48:28,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:28,581 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 01:48:28,582 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 1 case distinctions, treesize of input 147 treesize of output 102 [2022-11-03 01:48:28,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:28,605 INFO L356 Elim1Store]: treesize reduction 26, result has 3.7 percent of original size [2022-11-03 01:48:28,606 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 134 treesize of output 93 [2022-11-03 01:48:28,628 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 15 treesize of output 7 [2022-11-03 01:48:28,640 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 7 treesize of output 3 [2022-11-03 01:48:28,653 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 01:48:28,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:28,894 INFO L356 Elim1Store]: treesize reduction 38, result has 2.6 percent of original size [2022-11-03 01:48:28,894 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 185 treesize of output 132 [2022-11-03 01:48:28,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:28,930 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 01:48:28,931 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 1 case distinctions, treesize of input 108 treesize of output 77 [2022-11-03 01:48:28,951 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 15 treesize of output 7 [2022-11-03 01:48:28,963 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 7 treesize of output 3 [2022-11-03 01:48:28,973 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 01:48:29,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:29,056 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:48:29,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:29,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:29,066 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 141 treesize of output 152 [2022-11-03 01:48:29,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:29,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:29,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:29,112 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 131 treesize of output 137 [2022-11-03 01:48:29,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:29,146 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-03 01:48:29,244 INFO L356 Elim1Store]: treesize reduction 25, result has 35.9 percent of original size [2022-11-03 01:48:29,245 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 78 treesize of output 50 [2022-11-03 01:48:29,257 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 3 [2022-11-03 01:48:29,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:29,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:29,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:29,276 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 31 [2022-11-03 01:48:29,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:29,309 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 57 treesize of output 11 [2022-11-03 01:48:29,354 INFO L356 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2022-11-03 01:48:29,355 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 2 case distinctions, treesize of input 202 treesize of output 179 [2022-11-03 01:48:29,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:29,368 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 161 treesize of output 131 [2022-11-03 01:48:29,578 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 7 treesize of output 3 [2022-11-03 01:48:29,589 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 7 treesize of output 3 [2022-11-03 01:48:29,696 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 7 treesize of output 3 [2022-11-03 01:48:29,709 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 7 treesize of output 3 [2022-11-03 01:48:29,775 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2022-11-03 01:48:29,785 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 01:48:29,795 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2022-11-03 01:48:30,041 INFO L197 IcfgInterpreter]: Interpreting procedure node_create with input of size 43 for LOIs [2022-11-03 01:48:30,147 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 01:48:37,833 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '843#(and (<= 0 |ULTIMATE.start_main_~count~0#1|) (<= 1 |ULTIMATE.start_dll_create_~data#1|) (<= 0 |ULTIMATE.start_dll_append_#in~head#1.base|) (<= 2 |ULTIMATE.start_dll_create_#in~len#1|) (not (= |ULTIMATE.start_main_~count~0#1| (+ |ULTIMATE.start_main_~len~0#1| 1))) (<= |ULTIMATE.start_dll_append_~data#1| 1) (<= |ULTIMATE.start_dll_create_#res#1.offset| 0) (<= |ULTIMATE.start_dll_append_~head#1.offset| 0) (<= 0 |ULTIMATE.start_dll_append_#in~head#1.offset|) (= |ULTIMATE.start_dll_append_~new_last~0#1.offset| 0) (= |ULTIMATE.start_main_~ptr~0#1.offset| 0) (<= |ULTIMATE.start_dll_create_~data#1| 1) (= |ULTIMATE.start_main_~ptr~0#1.base| 0) (= |ULTIMATE.start_main_~data~0#1| 1) (<= 1 |ULTIMATE.start_dll_append_#in~data#1|) (<= |ULTIMATE.start_dll_create_#in~len#1| 2) (= |ULTIMATE.start_main_~#s~0#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) (<= 0 |ULTIMATE.start_dll_append_~head#1.offset|) (<= 0 |ULTIMATE.start_main_~#s~0#1.base|) (<= |ULTIMATE.start_dll_create_#in~data#1| 1) (<= |ULTIMATE.start_dll_append_#in~head#1.offset| 0) (<= |ULTIMATE.start_dll_create_~head~0#1.offset| 0) (<= 1 |ULTIMATE.start_dll_append_~data#1|) (<= 0 |ULTIMATE.start_dll_create_~head~0#1.offset|) (<= 0 |ULTIMATE.start_dll_append_~head#1.base|) (<= |ULTIMATE.start_dll_append_#in~data#1| 1) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_dll_create_#res#1.offset|) (= |#NULL.base| 0))' at error location [2022-11-03 01:48:37,833 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 01:48:37,833 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-03 01:48:37,834 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 20 [2022-11-03 01:48:37,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975937967] [2022-11-03 01:48:37,834 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-03 01:48:37,835 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-11-03 01:48:37,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:48:37,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-11-03 01:48:37,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=1016, Unknown=2, NotChecked=130, Total=1260 [2022-11-03 01:48:37,837 INFO L87 Difference]: Start difference. First operand 26 states and 32 transitions. Second operand has 20 states, 15 states have (on average 1.8) internal successors, (27), 15 states have internal predecessors, (27), 4 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) [2022-11-03 01:48:38,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:48:38,180 INFO L93 Difference]: Finished difference Result 31 states and 38 transitions. [2022-11-03 01:48:38,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-03 01:48:38,181 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 15 states have (on average 1.8) internal successors, (27), 15 states have internal predecessors, (27), 4 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) Word has length 26 [2022-11-03 01:48:38,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:48:38,182 INFO L225 Difference]: With dead ends: 31 [2022-11-03 01:48:38,183 INFO L226 Difference]: Without dead ends: 23 [2022-11-03 01:48:38,184 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 38 SyntacticMatches, 1 SemanticMatches, 39 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 381 ImplicationChecksByTransitivity, 8.1s TimeCoverageRelationStatistics Valid=150, Invalid=1338, Unknown=2, NotChecked=150, Total=1640 [2022-11-03 01:48:38,185 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 12 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 25 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 01:48:38,185 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 97 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 106 Invalid, 0 Unknown, 25 Unchecked, 0.2s Time] [2022-11-03 01:48:38,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2022-11-03 01:48:38,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2022-11-03 01:48:38,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 18 states have (on average 1.2222222222222223) internal successors, (22), 18 states have internal predecessors, (22), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-03 01:48:38,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 28 transitions. [2022-11-03 01:48:38,196 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 28 transitions. Word has length 26 [2022-11-03 01:48:38,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:48:38,197 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 28 transitions. [2022-11-03 01:48:38,197 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 15 states have (on average 1.8) internal successors, (27), 15 states have internal predecessors, (27), 4 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) [2022-11-03 01:48:38,197 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 28 transitions. [2022-11-03 01:48:38,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-03 01:48:38,198 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:48:38,199 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:48:38,230 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84f73a98-6ba7-47ba-9041-43c9024ecefb/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-03 01:48:38,406 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84f73a98-6ba7-47ba-9041-43c9024ecefb/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:48:38,407 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:48:38,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:48:38,407 INFO L85 PathProgramCache]: Analyzing trace with hash -524387403, now seen corresponding path program 1 times [2022-11-03 01:48:38,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:48:38,408 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565168710] [2022-11-03 01:48:38,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:48:38,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:48:38,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:48:39,393 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 9 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-03 01:48:39,393 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:48:39,393 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [565168710] [2022-11-03 01:48:39,393 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [565168710] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 01:48:39,394 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2051318588] [2022-11-03 01:48:39,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:48:39,394 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:48:39,394 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84f73a98-6ba7-47ba-9041-43c9024ecefb/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:48:39,399 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84f73a98-6ba7-47ba-9041-43c9024ecefb/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 01:48:39,422 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84f73a98-6ba7-47ba-9041-43c9024ecefb/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-03 01:48:39,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:48:39,637 INFO L263 TraceCheckSpWp]: Trace formula consists of 426 conjuncts, 39 conjunts are in the unsatisfiable core [2022-11-03 01:48:39,649 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:48:39,823 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 8 treesize of output 4 [2022-11-03 01:48:39,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:39,888 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 15 treesize of output 17 [2022-11-03 01:48:40,096 INFO L356 Elim1Store]: treesize reduction 31, result has 38.0 percent of original size [2022-11-03 01:48:40,097 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 34 treesize of output 41 [2022-11-03 01:48:40,132 INFO L356 Elim1Store]: treesize reduction 32, result has 31.9 percent of original size [2022-11-03 01:48:40,132 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 32 treesize of output 42 [2022-11-03 01:48:40,141 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 9 [2022-11-03 01:48:40,166 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 16 treesize of output 8 [2022-11-03 01:48:40,172 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 9 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-03 01:48:40,172 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 01:48:41,885 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_953 (Array Int Int)) (|v_ULTIMATE.start_dll_append_#t~ret7#1.base_24| Int) (|ULTIMATE.start_dll_append_~last~0#1.offset| Int) (|ULTIMATE.start_dll_append_~last~0#1.base| Int) (v_ArrVal_960 (Array Int Int))) (let ((.cse2 (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_dll_append_#t~ret7#1.base_24| v_ArrVal_960))) (let ((.cse0 (select .cse2 |ULTIMATE.start_dll_append_~last~0#1.base|)) (.cse1 (+ |ULTIMATE.start_dll_append_~last~0#1.offset| 4))) (or (not (< |v_ULTIMATE.start_dll_append_#t~ret7#1.base_24| |c_#StackHeapBarrier|)) (not (= (select .cse0 .cse1) 0)) (not (= 0 (select (select (store (store .cse2 |ULTIMATE.start_dll_append_~last~0#1.base| (store .cse0 .cse1 |v_ULTIMATE.start_dll_append_#t~ret7#1.base_24|)) |v_ULTIMATE.start_dll_append_#t~ret7#1.base_24| v_ArrVal_953) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))))))) is different from false [2022-11-03 01:48:41,888 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2051318588] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 01:48:41,888 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [783823137] [2022-11-03 01:48:41,891 INFO L159 IcfgInterpreter]: Started Sifa with 18 locations of interest [2022-11-03 01:48:41,892 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 01:48:41,892 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 01:48:41,893 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 01:48:41,893 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 01:48:41,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:41,936 INFO L356 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-03 01:48:41,937 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 27 treesize of output 37 [2022-11-03 01:48:41,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:41,951 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 01:48:41,993 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 01:48:41,998 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 01:48:42,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:42,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:42,021 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2022-11-03 01:48:42,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:42,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:42,033 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 19 [2022-11-03 01:48:42,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:42,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:42,044 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 19 [2022-11-03 01:48:42,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:42,081 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2022-11-03 01:48:42,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:42,095 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 16 treesize of output 10 [2022-11-03 01:48:42,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:42,154 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2022-11-03 01:48:42,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:42,172 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 16 treesize of output 10 [2022-11-03 01:48:42,268 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:48:42,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:42,315 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 242 treesize of output 219 [2022-11-03 01:48:42,338 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:48:42,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:42,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:42,348 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:48:42,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:42,370 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 227 treesize of output 210 [2022-11-03 01:48:42,391 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:48:42,440 INFO L356 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-11-03 01:48:42,441 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 348 treesize of output 342 [2022-11-03 01:48:42,468 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:48:42,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:42,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:42,476 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:48:42,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:42,491 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 231 treesize of output 115 [2022-11-03 01:48:42,517 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 139 treesize of output 156 [2022-11-03 01:48:42,561 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 77 treesize of output 33 [2022-11-03 01:48:42,571 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 5 treesize of output 3 [2022-11-03 01:48:42,581 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 28 treesize of output 16 [2022-11-03 01:48:42,677 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-11-03 01:48:42,690 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 7 treesize of output 3 [2022-11-03 01:48:42,704 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 139 treesize of output 67 [2022-11-03 01:48:42,721 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 49 treesize of output 41 [2022-11-03 01:48:42,734 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 5 treesize of output 3 [2022-11-03 01:48:42,746 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 5 treesize of output 3 [2022-11-03 01:48:42,758 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 5 treesize of output 3 [2022-11-03 01:48:42,817 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-11-03 01:48:42,829 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 5 treesize of output 3 [2022-11-03 01:48:42,842 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 7 treesize of output 3 [2022-11-03 01:48:42,855 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 139 treesize of output 67 [2022-11-03 01:48:42,872 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 49 treesize of output 41 [2022-11-03 01:48:42,886 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 5 treesize of output 3 [2022-11-03 01:48:42,899 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 5 treesize of output 3 [2022-11-03 01:48:42,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:42,993 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:48:42,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:42,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:42,998 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 141 treesize of output 147 [2022-11-03 01:48:43,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:43,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:43,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:43,033 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 131 treesize of output 142 [2022-11-03 01:48:43,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:43,062 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-03 01:48:43,133 INFO L356 Elim1Store]: treesize reduction 25, result has 35.9 percent of original size [2022-11-03 01:48:43,134 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 78 treesize of output 50 [2022-11-03 01:48:43,148 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 3 [2022-11-03 01:48:43,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:43,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:43,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:43,164 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 31 [2022-11-03 01:48:43,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:43,201 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 57 treesize of output 11 [2022-11-03 01:48:43,300 INFO L356 Elim1Store]: treesize reduction 64, result has 9.9 percent of original size [2022-11-03 01:48:43,301 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 308 treesize of output 330 [2022-11-03 01:48:43,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:43,316 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 254 treesize of output 220 [2022-11-03 01:48:43,360 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 01:48:43,391 INFO L356 Elim1Store]: treesize reduction 91, result has 1.1 percent of original size [2022-11-03 01:48:43,392 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 5 case distinctions, treesize of input 62 treesize of output 15 [2022-11-03 01:48:43,603 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 7 treesize of output 3 [2022-11-03 01:48:43,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:43,618 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 0 case distinctions, treesize of input 135 treesize of output 103 [2022-11-03 01:48:43,632 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 92 treesize of output 56 [2022-11-03 01:48:43,659 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 01:48:43,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:43,672 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 18 treesize of output 12 [2022-11-03 01:48:43,685 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 01:48:43,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:43,870 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 0 case distinctions, treesize of input 135 treesize of output 103 [2022-11-03 01:48:43,884 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 92 treesize of output 56 [2022-11-03 01:48:43,905 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 01:48:43,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:43,917 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 18 treesize of output 12 [2022-11-03 01:48:43,928 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 7 treesize of output 3 [2022-11-03 01:48:43,940 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 01:48:44,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:44,009 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:48:44,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:44,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:44,015 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 141 treesize of output 152 [2022-11-03 01:48:44,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:44,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:44,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:44,048 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 131 treesize of output 142 [2022-11-03 01:48:44,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:44,076 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-03 01:48:44,134 INFO L356 Elim1Store]: treesize reduction 25, result has 35.9 percent of original size [2022-11-03 01:48:44,135 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 3 case distinctions, treesize of input 78 treesize of output 50 [2022-11-03 01:48:44,151 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 3 [2022-11-03 01:48:44,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:44,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:44,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:44,171 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 31 [2022-11-03 01:48:44,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:44,199 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 57 treesize of output 11 [2022-11-03 01:48:44,267 INFO L356 Elim1Store]: treesize reduction 28, result has 22.2 percent of original size [2022-11-03 01:48:44,268 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 144 treesize of output 113 [2022-11-03 01:48:44,282 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 3 [2022-11-03 01:48:44,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:44,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:44,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:44,296 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 107 treesize of output 79 [2022-11-03 01:48:44,468 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 7 treesize of output 3 [2022-11-03 01:48:44,484 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 7 treesize of output 3 [2022-11-03 01:48:44,567 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 7 treesize of output 3 [2022-11-03 01:48:44,580 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 7 treesize of output 3 [2022-11-03 01:48:44,993 INFO L356 Elim1Store]: treesize reduction 25, result has 40.5 percent of original size [2022-11-03 01:48:44,994 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 214 treesize of output 204 [2022-11-03 01:48:45,021 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:48:45,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:45,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:45,195 INFO L356 Elim1Store]: treesize reduction 114, result has 21.9 percent of original size [2022-11-03 01:48:45,196 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 9 case distinctions, treesize of input 253 treesize of output 230 [2022-11-03 01:48:45,236 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:48:45,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:45,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:45,328 INFO L356 Elim1Store]: treesize reduction 112, result has 23.3 percent of original size [2022-11-03 01:48:45,330 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 9 case distinctions, treesize of input 233 treesize of output 212 [2022-11-03 01:48:45,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:48:45,362 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 37 treesize of output 21 [2022-11-03 01:48:45,759 INFO L197 IcfgInterpreter]: Interpreting procedure node_create with input of size 43 for LOIs [2022-11-03 01:48:45,864 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 01:48:56,109 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [783823137] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:48:56,110 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-03 01:48:56,110 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [16, 17] total 40 [2022-11-03 01:48:56,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335818852] [2022-11-03 01:48:56,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:48:56,111 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-03 01:48:56,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:48:56,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-03 01:48:56,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=148, Invalid=1743, Unknown=5, NotChecked=84, Total=1980 [2022-11-03 01:48:56,114 INFO L87 Difference]: Start difference. First operand 23 states and 28 transitions. Second operand has 16 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 12 states have internal predecessors, (15), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-03 01:48:56,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:48:56,663 INFO L93 Difference]: Finished difference Result 39 states and 46 transitions. [2022-11-03 01:48:56,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-03 01:48:56,664 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 12 states have internal predecessors, (15), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 27 [2022-11-03 01:48:56,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:48:56,665 INFO L225 Difference]: With dead ends: 39 [2022-11-03 01:48:56,665 INFO L226 Difference]: Without dead ends: 36 [2022-11-03 01:48:56,666 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 34 SyntacticMatches, 2 SemanticMatches, 43 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 562 ImplicationChecksByTransitivity, 12.4s TimeCoverageRelationStatistics Valid=148, Invalid=1743, Unknown=5, NotChecked=84, Total=1980 [2022-11-03 01:48:56,667 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 36 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 25 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-03 01:48:56,667 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 15 Invalid, 223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 189 Invalid, 0 Unknown, 25 Unchecked, 0.5s Time] [2022-11-03 01:48:56,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2022-11-03 01:48:56,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 28. [2022-11-03 01:48:56,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 23 states have (on average 1.2173913043478262) internal successors, (28), 23 states have internal predecessors, (28), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-03 01:48:56,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 34 transitions. [2022-11-03 01:48:56,682 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 34 transitions. Word has length 27 [2022-11-03 01:48:56,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:48:56,683 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 34 transitions. [2022-11-03 01:48:56,683 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 12 states have internal predecessors, (15), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-03 01:48:56,683 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 34 transitions. [2022-11-03 01:48:56,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-03 01:48:56,684 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:48:56,684 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:48:56,712 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84f73a98-6ba7-47ba-9041-43c9024ecefb/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-11-03 01:48:56,886 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84f73a98-6ba7-47ba-9041-43c9024ecefb/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:48:56,887 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:48:56,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:48:56,887 INFO L85 PathProgramCache]: Analyzing trace with hash -524443389, now seen corresponding path program 1 times [2022-11-03 01:48:56,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:48:56,888 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1282888641] [2022-11-03 01:48:56,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:48:56,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:48:56,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:48:59,450 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 5 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 01:48:59,450 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:48:59,451 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1282888641] [2022-11-03 01:48:59,451 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1282888641] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 01:48:59,451 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [822973897] [2022-11-03 01:48:59,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:48:59,451 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:48:59,452 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84f73a98-6ba7-47ba-9041-43c9024ecefb/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:48:59,453 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84f73a98-6ba7-47ba-9041-43c9024ecefb/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 01:48:59,466 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84f73a98-6ba7-47ba-9041-43c9024ecefb/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-03 01:49:00,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:49:00,363 INFO L263 TraceCheckSpWp]: Trace formula consists of 425 conjuncts, 127 conjunts are in the unsatisfiable core [2022-11-03 01:49:00,371 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:49:00,447 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 01:49:00,742 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 01:49:00,859 INFO L356 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-03 01:49:00,860 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-03 01:49:01,017 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2022-11-03 01:49:01,026 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 24 [2022-11-03 01:49:01,034 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2022-11-03 01:49:01,041 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 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 01:49:01,365 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 44 treesize of output 24 [2022-11-03 01:49:01,373 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 11 treesize of output 7 [2022-11-03 01:49:01,380 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 7 treesize of output 3 [2022-11-03 01:49:01,387 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 7 treesize of output 3 [2022-11-03 01:49:01,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:01,575 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 52 treesize of output 46 [2022-11-03 01:49:01,601 INFO L356 Elim1Store]: treesize reduction 19, result has 47.2 percent of original size [2022-11-03 01:49:01,601 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 18 treesize of output 28 [2022-11-03 01:49:01,615 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 5 treesize of output 3 [2022-11-03 01:49:01,648 INFO L356 Elim1Store]: treesize reduction 8, result has 61.9 percent of original size [2022-11-03 01:49:01,649 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 20 treesize of output 22 [2022-11-03 01:49:01,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:01,665 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 14 treesize of output 16 [2022-11-03 01:49:02,317 INFO L356 Elim1Store]: treesize reduction 29, result has 19.4 percent of original size [2022-11-03 01:49:02,317 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 31 treesize of output 29 [2022-11-03 01:49:02,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:02,333 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-11-03 01:49:02,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:02,348 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 01:49:02,349 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 1 case distinctions, treesize of input 62 treesize of output 46 [2022-11-03 01:49:02,383 INFO L356 Elim1Store]: treesize reduction 32, result has 31.9 percent of original size [2022-11-03 01:49:02,383 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 90 treesize of output 88 [2022-11-03 01:49:02,398 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 22 treesize of output 24 [2022-11-03 01:49:02,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:02,411 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 18 treesize of output 20 [2022-11-03 01:49:02,427 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 22 treesize of output 14 [2022-11-03 01:49:02,529 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 20 [2022-11-03 01:49:02,533 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 15 treesize of output 7 [2022-11-03 01:49:02,605 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 15 treesize of output 7 [2022-11-03 01:49:02,657 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 8 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 01:49:02,657 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 01:49:02,682 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1216 (Array Int Int)) (v_ArrVal_1213 (Array Int Int)) (v_ArrVal_1222 (Array Int Int)) (v_ArrVal_1212 Int) (v_ArrVal_1215 Int)) (= |c_ULTIMATE.start_main_~data~0#1| (let ((.cse0 (+ |c_ULTIMATE.start_dll_append_~last~0#1.offset| 4))) (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_dll_append_~last~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_dll_append_~last~0#1.base|) .cse0 v_ArrVal_1212)) |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_1213) (select (select (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_append_~last~0#1.base| (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_append_~last~0#1.base|) .cse0 |c_ULTIMATE.start_dll_append_~new_last~0#1.base|)) |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_1222) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (select (select (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_append_~last~0#1.base| (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_append_~last~0#1.base|) .cse0 v_ArrVal_1215)) |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_1216) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))))) is different from false [2022-11-03 01:49:03,295 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1216 (Array Int Int)) (v_ArrVal_1213 (Array Int Int)) (|ULTIMATE.start_dll_append_~last~0#1.base| Int) (v_ArrVal_1222 (Array Int Int)) (v_ArrVal_1212 Int) (v_ArrVal_1215 Int) (|v_ULTIMATE.start_dll_append_~last~0#1.offset_14| Int)) (let ((.cse1 (select |c_#memory_$Pointer$.base| |ULTIMATE.start_dll_append_~last~0#1.base|)) (.cse0 (+ |v_ULTIMATE.start_dll_append_~last~0#1.offset_14| 4))) (or (= |c_ULTIMATE.start_main_~data~0#1| (select (select (store (store |c_#memory_int| |ULTIMATE.start_dll_append_~last~0#1.base| (store (select |c_#memory_int| |ULTIMATE.start_dll_append_~last~0#1.base|) .cse0 v_ArrVal_1212)) |c_ULTIMATE.start_dll_append_#t~ret7#1.base| v_ArrVal_1213) (select (select (store (store |c_#memory_$Pointer$.base| |ULTIMATE.start_dll_append_~last~0#1.base| (store .cse1 .cse0 |c_ULTIMATE.start_dll_append_#t~ret7#1.base|)) |c_ULTIMATE.start_dll_append_#t~ret7#1.base| v_ArrVal_1222) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (select (select (store (store |c_#memory_$Pointer$.offset| |ULTIMATE.start_dll_append_~last~0#1.base| (store (select |c_#memory_$Pointer$.offset| |ULTIMATE.start_dll_append_~last~0#1.base|) .cse0 v_ArrVal_1215)) |c_ULTIMATE.start_dll_append_#t~ret7#1.base| v_ArrVal_1216) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (not (<= (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_append_~head#1.base|) |c_ULTIMATE.start_dll_append_~head#1.offset|) |v_ULTIMATE.start_dll_append_~last~0#1.offset_14|)) (not (= (select .cse1 .cse0) 0))))) is different from false [2022-11-03 01:49:03,439 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_dll_append_#t~ret7#1.base_28| Int) (v_ArrVal_1216 (Array Int Int)) (v_ArrVal_1213 (Array Int Int)) (|ULTIMATE.start_dll_append_~last~0#1.base| Int) (v_ArrVal_1222 (Array Int Int)) (v_ArrVal_1233 (Array Int Int)) (v_ArrVal_1232 (Array Int Int)) (v_ArrVal_1212 Int) (v_ArrVal_1231 (Array Int Int)) (v_ArrVal_1215 Int) (|v_ULTIMATE.start_dll_append_~last~0#1.offset_14| Int)) (let ((.cse4 (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_dll_append_#t~ret7#1.base_28| v_ArrVal_1232))) (let ((.cse0 (select .cse4 |ULTIMATE.start_dll_append_~last~0#1.base|)) (.cse2 (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_dll_append_#t~ret7#1.base_28| v_ArrVal_1233)) (.cse1 (+ |v_ULTIMATE.start_dll_append_~last~0#1.offset_14| 4))) (or (not (< |v_ULTIMATE.start_dll_append_#t~ret7#1.base_28| |c_#StackHeapBarrier|)) (not (= (select .cse0 .cse1) 0)) (not (<= (select (select .cse2 |c_ULTIMATE.start_dll_append_~head#1.base|) |c_ULTIMATE.start_dll_append_~head#1.offset|) |v_ULTIMATE.start_dll_append_~last~0#1.offset_14|)) (not (= (select |c_#valid| |v_ULTIMATE.start_dll_append_#t~ret7#1.base_28|) 0)) (= |c_ULTIMATE.start_main_~data~0#1| (select (select (store (let ((.cse3 (store |c_#memory_int| |v_ULTIMATE.start_dll_append_#t~ret7#1.base_28| v_ArrVal_1231))) (store .cse3 |ULTIMATE.start_dll_append_~last~0#1.base| (store (select .cse3 |ULTIMATE.start_dll_append_~last~0#1.base|) .cse1 v_ArrVal_1212))) |v_ULTIMATE.start_dll_append_#t~ret7#1.base_28| v_ArrVal_1213) (select (select (store (store .cse4 |ULTIMATE.start_dll_append_~last~0#1.base| (store .cse0 .cse1 |v_ULTIMATE.start_dll_append_#t~ret7#1.base_28|)) |v_ULTIMATE.start_dll_append_#t~ret7#1.base_28| v_ArrVal_1222) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (select (select (store (store .cse2 |ULTIMATE.start_dll_append_~last~0#1.base| (store (select .cse2 |ULTIMATE.start_dll_append_~last~0#1.base|) .cse1 v_ArrVal_1215)) |v_ULTIMATE.start_dll_append_#t~ret7#1.base_28| v_ArrVal_1216) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))))))) is different from false [2022-11-03 01:49:03,442 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [822973897] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 01:49:03,442 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1319541362] [2022-11-03 01:49:03,444 INFO L159 IcfgInterpreter]: Started Sifa with 18 locations of interest [2022-11-03 01:49:03,444 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 01:49:03,445 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 01:49:03,445 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 01:49:03,445 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 01:49:03,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:03,491 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-03 01:49:03,492 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 17 treesize of output 26 [2022-11-03 01:49:03,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:03,522 INFO L356 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-03 01:49:03,523 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 27 treesize of output 37 [2022-11-03 01:49:03,559 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 01:49:03,563 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 01:49:03,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:03,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:03,586 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2022-11-03 01:49:03,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:03,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:03,597 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 19 [2022-11-03 01:49:03,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:03,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:03,608 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 19 [2022-11-03 01:49:03,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:03,634 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2022-11-03 01:49:03,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:03,650 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 16 treesize of output 10 [2022-11-03 01:49:03,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:03,693 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2022-11-03 01:49:03,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:03,708 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 16 treesize of output 10 [2022-11-03 01:49:03,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:03,752 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 30 treesize of output 11 [2022-11-03 01:49:03,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:03,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:03,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:03,773 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:49:03,774 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 31 treesize of output 30 [2022-11-03 01:49:03,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:03,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:03,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:03,800 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:49:03,801 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 31 treesize of output 30 [2022-11-03 01:49:03,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:03,861 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2022-11-03 01:49:03,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:03,877 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2022-11-03 01:49:03,891 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 5 treesize of output 3 [2022-11-03 01:49:03,902 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 5 treesize of output 3 [2022-11-03 01:49:03,912 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 7 treesize of output 3 [2022-11-03 01:49:03,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:03,964 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2022-11-03 01:49:03,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:03,978 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2022-11-03 01:49:03,990 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 7 treesize of output 3 [2022-11-03 01:49:04,001 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 5 treesize of output 3 [2022-11-03 01:49:04,012 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 5 treesize of output 3 [2022-11-03 01:49:04,139 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:49:04,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:04,178 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 253 treesize of output 230 [2022-11-03 01:49:04,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:04,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:04,223 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 238 treesize of output 221 [2022-11-03 01:49:04,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:04,242 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:49:04,244 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:49:04,305 INFO L356 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-03 01:49:04,306 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 355 treesize of output 357 [2022-11-03 01:49:04,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:04,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:04,349 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 242 treesize of output 225 [2022-11-03 01:49:04,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:04,369 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:49:04,370 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:49:04,371 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:49:04,392 INFO L356 Elim1Store]: treesize reduction 29, result has 19.4 percent of original size [2022-11-03 01:49:04,393 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 361 treesize of output 370 [2022-11-03 01:49:04,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:04,474 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 78 treesize of output 36 [2022-11-03 01:49:04,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:04,493 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 23 treesize of output 17 [2022-11-03 01:49:04,512 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 3 [2022-11-03 01:49:04,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:04,539 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 57 treesize of output 11 [2022-11-03 01:49:04,661 INFO L356 Elim1Store]: treesize reduction 23, result has 4.2 percent of original size [2022-11-03 01:49:04,662 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 2 case distinctions, treesize of input 69 treesize of output 38 [2022-11-03 01:49:04,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:04,673 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 38 treesize of output 30 [2022-11-03 01:49:04,858 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 5 treesize of output 3 [2022-11-03 01:49:04,869 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 5 treesize of output 3 [2022-11-03 01:49:04,881 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 7 treesize of output 3 [2022-11-03 01:49:05,026 INFO L356 Elim1Store]: treesize reduction 12, result has 91.7 percent of original size [2022-11-03 01:49:05,045 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 1194 treesize of output 1252 [2022-11-03 01:49:05,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:05,088 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 983 treesize of output 853 [2022-11-03 01:49:05,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:05,490 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 38 treesize of output 22 [2022-11-03 01:49:05,504 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 5 treesize of output 3 [2022-11-03 01:49:05,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:05,516 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 34 treesize of output 20 [2022-11-03 01:49:05,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:05,530 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 31 treesize of output 17 [2022-11-03 01:49:05,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:05,543 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 7 [2022-11-03 01:49:05,782 INFO L356 Elim1Store]: treesize reduction 12, result has 91.7 percent of original size [2022-11-03 01:49:05,783 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 1389 treesize of output 1435 [2022-11-03 01:49:05,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:05,832 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 1098 treesize of output 944 [2022-11-03 01:49:06,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:06,203 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 31 treesize of output 17 [2022-11-03 01:49:06,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:06,219 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 38 treesize of output 22 [2022-11-03 01:49:06,232 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 5 treesize of output 3 [2022-11-03 01:49:06,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:06,244 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 34 treesize of output 20 [2022-11-03 01:49:06,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:06,258 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 13 treesize of output 7 [2022-11-03 01:49:06,268 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 5 treesize of output 3 [2022-11-03 01:49:06,281 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 5 treesize of output 3 [2022-11-03 01:49:06,293 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 7 treesize of output 3 [2022-11-03 01:49:06,408 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:49:06,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:06,431 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 253 treesize of output 230 [2022-11-03 01:49:06,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:06,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:06,490 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 238 treesize of output 221 [2022-11-03 01:49:06,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:06,508 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:49:06,510 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:49:06,566 INFO L356 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-03 01:49:06,567 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 355 treesize of output 357 [2022-11-03 01:49:06,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:06,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:06,598 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 242 treesize of output 225 [2022-11-03 01:49:06,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:06,624 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:49:06,625 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:49:06,627 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:49:06,651 INFO L356 Elim1Store]: treesize reduction 29, result has 19.4 percent of original size [2022-11-03 01:49:06,652 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 361 treesize of output 365 [2022-11-03 01:49:06,736 INFO L356 Elim1Store]: treesize reduction 23, result has 4.2 percent of original size [2022-11-03 01:49:06,736 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 52 treesize of output 23 [2022-11-03 01:49:06,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:06,757 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 23 treesize of output 17 [2022-11-03 01:49:06,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:06,795 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 57 treesize of output 11 [2022-11-03 01:49:06,985 INFO L356 Elim1Store]: treesize reduction 23, result has 4.2 percent of original size [2022-11-03 01:49:06,986 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 274 treesize of output 241 [2022-11-03 01:49:06,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:06,998 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 241 treesize of output 231 [2022-11-03 01:49:07,251 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 7 treesize of output 3 [2022-11-03 01:49:07,264 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 7 treesize of output 3 [2022-11-03 01:49:07,336 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 7 treesize of output 3 [2022-11-03 01:49:07,348 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 7 treesize of output 3 [2022-11-03 01:49:07,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:07,602 INFO L356 Elim1Store]: treesize reduction 62, result has 30.3 percent of original size [2022-11-03 01:49:07,602 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 4 case distinctions, treesize of input 67 treesize of output 55 [2022-11-03 01:49:07,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:07,655 INFO L356 Elim1Store]: treesize reduction 72, result has 19.1 percent of original size [2022-11-03 01:49:07,656 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 4 case distinctions, treesize of input 67 treesize of output 45 [2022-11-03 01:49:07,719 INFO L356 Elim1Store]: treesize reduction 27, result has 41.3 percent of original size [2022-11-03 01:49:07,720 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 1 case distinctions, treesize of input 39 treesize of output 19 [2022-11-03 01:49:07,866 INFO L197 IcfgInterpreter]: Interpreting procedure node_create with input of size 43 for LOIs [2022-11-03 01:49:07,968 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 01:49:14,803 WARN L234 SmtUtils]: Spent 5.11s on a formula simplification. DAG size of input: 86 DAG size of output: 71 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 01:49:19,959 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1345#(and (<= 1 |ULTIMATE.start_dll_create_~data#1|) (<= 0 |ULTIMATE.start_dll_append_#in~head#1.base|) (<= 2 |ULTIMATE.start_dll_create_#in~len#1|) (<= |ULTIMATE.start_dll_append_~data#1| 1) (<= |ULTIMATE.start_dll_create_#res#1.offset| 0) (= |ULTIMATE.start_main_~ptr~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0#1.base|) |ULTIMATE.start_main_~#s~0#1.offset|)) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0#1.base|) |ULTIMATE.start_main_~#s~0#1.offset|) |ULTIMATE.start_main_~ptr~0#1.offset|) (<= |ULTIMATE.start_dll_append_~head#1.offset| 0) (or (not (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_dll_append_~head#1.base|) |ULTIMATE.start_dll_append_~head#1.offset|) 0)) (not (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_dll_append_~head#1.base|) |ULTIMATE.start_dll_append_~head#1.offset|) 0))) (or (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_dll_append_~last~0#1.base|) (+ |ULTIMATE.start_dll_append_~last~0#1.offset| 4)) |ULTIMATE.start_dll_append_~new_last~0#1.offset|) (and (= |ULTIMATE.start_dll_append_~last~0#1.offset| (+ |ULTIMATE.start_dll_append_~new_last~0#1.offset| 4)) (= |ULTIMATE.start_dll_append_~last~0#1.base| |ULTIMATE.start_dll_append_~new_last~0#1.base|))) (or (not (= |ULTIMATE.start_main_~ptr~0#1.base| 0)) (not (= |ULTIMATE.start_main_~ptr~0#1.offset| 0))) (<= 0 |ULTIMATE.start_dll_append_#in~head#1.offset|) (<= |ULTIMATE.start_dll_create_~data#1| 1) (= |ULTIMATE.start_main_~count~0#1| 0) (= |ULTIMATE.start_dll_append_~last~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_dll_append_~head#1.base|) |ULTIMATE.start_dll_append_~head#1.offset|)) (not (= |ULTIMATE.start_main_~data~0#1| (select (select |#memory_int| |ULTIMATE.start_main_~ptr~0#1.base|) |ULTIMATE.start_main_~ptr~0#1.offset|))) (<= |ULTIMATE.start_dll_append_~new_last~0#1.offset| 0) (= |ULTIMATE.start_dll_append_~last~0#1.offset| (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_dll_append_~head#1.base|) |ULTIMATE.start_dll_append_~head#1.offset|)) (<= 0 |ULTIMATE.start_dll_append_~new_last~0#1.offset|) (= |ULTIMATE.start_main_~data~0#1| 1) (<= 0 |ULTIMATE.start_dll_create_~len#1|) (<= 1 |ULTIMATE.start_dll_append_#in~data#1|) (<= |ULTIMATE.start_dll_create_#in~len#1| 2) (<= |ULTIMATE.start_dll_create_~len#1| 0) (<= 1 |ULTIMATE.start_dll_create_#in~data#1|) (= |ULTIMATE.start_main_~len~0#1| 2) (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_dll_append_~new_last~0#1.base|) (+ |ULTIMATE.start_dll_append_~new_last~0#1.offset| 8)) |ULTIMATE.start_dll_append_~last~0#1.base|) (<= |ULTIMATE.start_main_~#s~0#1.offset| 0) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_dll_append_~head#1.offset|) (<= 0 |ULTIMATE.start_main_~#s~0#1.base|) (<= |ULTIMATE.start_dll_create_#in~data#1| 1) (<= |ULTIMATE.start_dll_append_#in~head#1.offset| 0) (<= |ULTIMATE.start_dll_create_~head~0#1.offset| 0) (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_dll_append_~last~0#1.base|) (+ |ULTIMATE.start_dll_append_~last~0#1.offset| 4)) |ULTIMATE.start_dll_append_~new_last~0#1.base|) (<= 1 |ULTIMATE.start_dll_append_~data#1|) (<= 0 |ULTIMATE.start_dll_create_~head~0#1.offset|) (= |ULTIMATE.start_dll_append_~last~0#1.offset| (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_dll_append_~new_last~0#1.base|) (+ |ULTIMATE.start_dll_append_~new_last~0#1.offset| 8))) (<= 0 |ULTIMATE.start_dll_append_~head#1.base|) (<= |ULTIMATE.start_dll_append_#in~data#1| 1) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_dll_create_#res#1.offset|) (<= 0 |ULTIMATE.start_main_~#s~0#1.offset|) (= |#NULL.base| 0))' at error location [2022-11-03 01:49:19,959 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 01:49:19,959 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-03 01:49:19,960 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 24] total 39 [2022-11-03 01:49:19,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687426377] [2022-11-03 01:49:19,960 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-03 01:49:19,960 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2022-11-03 01:49:19,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:49:19,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2022-11-03 01:49:19,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=217, Invalid=3095, Unknown=6, NotChecked=342, Total=3660 [2022-11-03 01:49:19,963 INFO L87 Difference]: Start difference. First operand 28 states and 34 transitions. Second operand has 39 states, 32 states have (on average 1.1875) internal successors, (38), 30 states have internal predecessors, (38), 6 states have call successors, (6), 3 states have call predecessors, (6), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-03 01:49:21,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:49:21,423 INFO L93 Difference]: Finished difference Result 37 states and 45 transitions. [2022-11-03 01:49:21,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-03 01:49:21,425 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 32 states have (on average 1.1875) internal successors, (38), 30 states have internal predecessors, (38), 6 states have call successors, (6), 3 states have call predecessors, (6), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Word has length 27 [2022-11-03 01:49:21,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:49:21,427 INFO L225 Difference]: With dead ends: 37 [2022-11-03 01:49:21,428 INFO L226 Difference]: Without dead ends: 35 [2022-11-03 01:49:21,429 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 25 SyntacticMatches, 1 SemanticMatches, 67 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 1075 ImplicationChecksByTransitivity, 15.5s TimeCoverageRelationStatistics Valid=311, Invalid=3985, Unknown=6, NotChecked=390, Total=4692 [2022-11-03 01:49:21,430 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 59 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 361 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 456 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 361 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 75 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-03 01:49:21,431 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 111 Invalid, 456 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 361 Invalid, 0 Unknown, 75 Unchecked, 0.6s Time] [2022-11-03 01:49:21,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2022-11-03 01:49:21,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 29. [2022-11-03 01:49:21,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 24 states have (on average 1.2083333333333333) internal successors, (29), 24 states have internal predecessors, (29), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-03 01:49:21,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 35 transitions. [2022-11-03 01:49:21,448 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 35 transitions. Word has length 27 [2022-11-03 01:49:21,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:49:21,448 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 35 transitions. [2022-11-03 01:49:21,449 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 32 states have (on average 1.1875) internal successors, (38), 30 states have internal predecessors, (38), 6 states have call successors, (6), 3 states have call predecessors, (6), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-03 01:49:21,449 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 35 transitions. [2022-11-03 01:49:21,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-03 01:49:21,450 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:49:21,450 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:49:21,486 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84f73a98-6ba7-47ba-9041-43c9024ecefb/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-11-03 01:49:21,666 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84f73a98-6ba7-47ba-9041-43c9024ecefb/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-11-03 01:49:21,667 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:49:21,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:49:21,667 INFO L85 PathProgramCache]: Analyzing trace with hash -1478832560, now seen corresponding path program 1 times [2022-11-03 01:49:21,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:49:21,668 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150246350] [2022-11-03 01:49:21,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:49:21,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:49:21,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:49:23,401 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-03 01:49:23,402 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:49:23,402 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150246350] [2022-11-03 01:49:23,402 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1150246350] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 01:49:23,402 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1389009341] [2022-11-03 01:49:23,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:49:23,403 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:49:23,403 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84f73a98-6ba7-47ba-9041-43c9024ecefb/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:49:23,404 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84f73a98-6ba7-47ba-9041-43c9024ecefb/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 01:49:23,422 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84f73a98-6ba7-47ba-9041-43c9024ecefb/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-03 01:49:23,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:49:23,691 INFO L263 TraceCheckSpWp]: Trace formula consists of 437 conjuncts, 99 conjunts are in the unsatisfiable core [2022-11-03 01:49:23,698 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:49:23,705 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 01:49:23,749 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 5 treesize of output 3 [2022-11-03 01:49:23,836 INFO L356 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-03 01:49:23,837 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 14 [2022-11-03 01:49:23,959 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 01:49:23,960 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 1 case distinctions, treesize of input 11 treesize of output 7 [2022-11-03 01:49:24,111 INFO L356 Elim1Store]: treesize reduction 44, result has 30.2 percent of original size [2022-11-03 01:49:24,111 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 22 treesize of output 33 [2022-11-03 01:49:24,231 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2022-11-03 01:49:24,256 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 14 [2022-11-03 01:49:24,270 INFO L356 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-03 01:49:24,271 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 35 [2022-11-03 01:49:24,475 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-11-03 01:49:24,476 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 67 treesize of output 30 [2022-11-03 01:49:24,512 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 7 treesize of output 3 [2022-11-03 01:49:24,523 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 01:49:24,524 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 10 [2022-11-03 01:49:24,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:24,667 INFO L356 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-11-03 01:49:24,668 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 73 treesize of output 61 [2022-11-03 01:49:24,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:24,705 INFO L356 Elim1Store]: treesize reduction 24, result has 46.7 percent of original size [2022-11-03 01:49:24,705 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 33 [2022-11-03 01:49:24,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:24,720 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 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 01:49:25,139 INFO L356 Elim1Store]: treesize reduction 29, result has 19.4 percent of original size [2022-11-03 01:49:25,140 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 24 treesize of output 26 [2022-11-03 01:49:25,201 INFO L356 Elim1Store]: treesize reduction 90, result has 14.3 percent of original size [2022-11-03 01:49:25,202 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 90 treesize of output 60 [2022-11-03 01:49:25,245 INFO L356 Elim1Store]: treesize reduction 62, result has 24.4 percent of original size [2022-11-03 01:49:25,246 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 112 treesize of output 102 [2022-11-03 01:49:25,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:25,261 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 18 treesize of output 20 [2022-11-03 01:49:25,272 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 26 [2022-11-03 01:49:25,334 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 15 treesize of output 7 [2022-11-03 01:49:25,434 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-11-03 01:49:25,434 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 56 treesize of output 23 [2022-11-03 01:49:25,472 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 9 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-03 01:49:25,472 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 01:49:26,406 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1389009341] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 01:49:26,406 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [320579489] [2022-11-03 01:49:26,408 INFO L159 IcfgInterpreter]: Started Sifa with 19 locations of interest [2022-11-03 01:49:26,408 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 01:49:26,409 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 01:49:26,409 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 01:49:26,409 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 01:49:26,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:26,453 INFO L356 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-03 01:49:26,454 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 27 treesize of output 37 [2022-11-03 01:49:26,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:26,470 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 01:49:26,503 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 01:49:26,515 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 01:49:26,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:26,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:26,541 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2022-11-03 01:49:26,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:26,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:26,550 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 19 [2022-11-03 01:49:26,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:26,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:26,560 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 19 [2022-11-03 01:49:26,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:26,591 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2022-11-03 01:49:26,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:26,625 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 16 treesize of output 10 [2022-11-03 01:49:26,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:26,672 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 16 treesize of output 10 [2022-11-03 01:49:26,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:26,684 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2022-11-03 01:49:26,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:26,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:26,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:26,739 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:49:26,740 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 31 treesize of output 30 [2022-11-03 01:49:26,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:26,755 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 30 treesize of output 11 [2022-11-03 01:49:26,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:26,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:26,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:26,776 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:49:26,777 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 31 treesize of output 30 [2022-11-03 01:49:26,841 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 5 treesize of output 3 [2022-11-03 01:49:26,851 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 5 treesize of output 3 [2022-11-03 01:49:26,865 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 7 treesize of output 3 [2022-11-03 01:49:26,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:26,878 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2022-11-03 01:49:26,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:26,891 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2022-11-03 01:49:26,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:26,938 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2022-11-03 01:49:26,952 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 7 treesize of output 3 [2022-11-03 01:49:26,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:26,966 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2022-11-03 01:49:26,977 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 5 treesize of output 3 [2022-11-03 01:49:26,991 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 5 treesize of output 3 [2022-11-03 01:49:27,111 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:49:27,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:27,163 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 253 treesize of output 230 [2022-11-03 01:49:27,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:27,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:27,220 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 238 treesize of output 221 [2022-11-03 01:49:27,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:27,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:27,260 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 238 treesize of output 221 [2022-11-03 01:49:27,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:27,278 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:49:27,279 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:49:27,320 INFO L356 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-03 01:49:27,321 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 355 treesize of output 357 [2022-11-03 01:49:27,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:27,342 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:49:27,343 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:49:27,344 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:49:27,370 INFO L356 Elim1Store]: treesize reduction 29, result has 19.4 percent of original size [2022-11-03 01:49:27,371 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 361 treesize of output 370 [2022-11-03 01:49:27,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:27,454 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 57 treesize of output 11 [2022-11-03 01:49:27,659 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 108 treesize of output 60 [2022-11-03 01:49:27,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:27,671 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 60 treesize of output 42 [2022-11-03 01:49:27,684 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 5 treesize of output 3 [2022-11-03 01:49:27,761 INFO L356 Elim1Store]: treesize reduction 23, result has 4.2 percent of original size [2022-11-03 01:49:27,762 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 366 treesize of output 333 [2022-11-03 01:49:27,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:27,777 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 333 treesize of output 323 [2022-11-03 01:49:28,145 INFO L356 Elim1Store]: treesize reduction 12, result has 91.7 percent of original size [2022-11-03 01:49:28,145 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 949 treesize of output 1019 [2022-11-03 01:49:28,493 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 5 treesize of output 3 [2022-11-03 01:49:28,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:28,504 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 34 treesize of output 20 [2022-11-03 01:49:28,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:28,522 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 38 treesize of output 22 [2022-11-03 01:49:28,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:28,537 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 31 treesize of output 17 [2022-11-03 01:49:28,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:28,549 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 7 [2022-11-03 01:49:28,559 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 5 treesize of output 3 [2022-11-03 01:49:28,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:28,573 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2022-11-03 01:49:28,588 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 5 treesize of output 3 [2022-11-03 01:49:28,600 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 7 treesize of output 3 [2022-11-03 01:49:28,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:28,686 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2022-11-03 01:49:28,696 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 5 treesize of output 3 [2022-11-03 01:49:28,846 INFO L356 Elim1Store]: treesize reduction 12, result has 91.7 percent of original size [2022-11-03 01:49:28,847 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 1197 treesize of output 1243 [2022-11-03 01:49:29,127 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 5 treesize of output 3 [2022-11-03 01:49:29,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:29,139 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 34 treesize of output 20 [2022-11-03 01:49:29,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:29,153 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 38 treesize of output 22 [2022-11-03 01:49:29,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:29,167 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 31 treesize of output 17 [2022-11-03 01:49:29,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:29,180 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 13 treesize of output 7 [2022-11-03 01:49:29,191 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 5 treesize of output 3 [2022-11-03 01:49:29,203 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 7 treesize of output 3 [2022-11-03 01:49:29,315 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:49:29,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:29,369 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 253 treesize of output 230 [2022-11-03 01:49:29,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:29,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:29,427 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 238 treesize of output 221 [2022-11-03 01:49:29,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:29,447 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:49:29,449 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:49:29,502 INFO L356 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-03 01:49:29,503 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 355 treesize of output 357 [2022-11-03 01:49:29,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:29,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:29,540 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 242 treesize of output 225 [2022-11-03 01:49:29,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:29,562 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:49:29,563 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:49:29,565 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:49:29,587 INFO L356 Elim1Store]: treesize reduction 29, result has 19.4 percent of original size [2022-11-03 01:49:29,587 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 361 treesize of output 365 [2022-11-03 01:49:29,668 INFO L356 Elim1Store]: treesize reduction 23, result has 4.2 percent of original size [2022-11-03 01:49:29,669 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 52 treesize of output 23 [2022-11-03 01:49:29,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:29,687 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 23 treesize of output 17 [2022-11-03 01:49:29,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:29,712 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 57 treesize of output 11 [2022-11-03 01:49:29,891 INFO L356 Elim1Store]: treesize reduction 23, result has 4.2 percent of original size [2022-11-03 01:49:29,892 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 274 treesize of output 241 [2022-11-03 01:49:29,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:29,904 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 241 treesize of output 231 [2022-11-03 01:49:30,079 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 7 treesize of output 3 [2022-11-03 01:49:30,104 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 7 treesize of output 3 [2022-11-03 01:49:30,198 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 7 treesize of output 3 [2022-11-03 01:49:30,210 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 7 treesize of output 3 [2022-11-03 01:49:30,554 INFO L356 Elim1Store]: treesize reduction 25, result has 40.5 percent of original size [2022-11-03 01:49:30,554 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 214 treesize of output 204 [2022-11-03 01:49:30,580 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:49:30,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:30,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:30,734 INFO L356 Elim1Store]: treesize reduction 114, result has 21.9 percent of original size [2022-11-03 01:49:30,734 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 253 treesize of output 230 [2022-11-03 01:49:30,762 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:49:30,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:30,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:30,867 INFO L356 Elim1Store]: treesize reduction 112, result has 23.3 percent of original size [2022-11-03 01:49:30,867 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 233 treesize of output 212 [2022-11-03 01:49:30,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:30,896 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 21 [2022-11-03 01:49:31,720 INFO L197 IcfgInterpreter]: Interpreting procedure node_create with input of size 43 for LOIs [2022-11-03 01:49:31,828 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 01:49:43,977 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1635#(and (<= 0 |ULTIMATE.start_main_~count~0#1|) (<= 1 |ULTIMATE.start_dll_create_~data#1|) (<= 0 |ULTIMATE.start_dll_append_#in~head#1.base|) (<= |ULTIMATE.start_main_~data~0#1| 1) (<= 0 |#NULL.base|) (<= 2 |ULTIMATE.start_main_~len~0#1|) (<= 2 |ULTIMATE.start_dll_create_#in~len#1|) (not (= |ULTIMATE.start_main_~count~0#1| (+ |ULTIMATE.start_main_~len~0#1| 1))) (<= |ULTIMATE.start_dll_append_~data#1| 1) (<= |ULTIMATE.start_dll_create_#res#1.offset| 0) (<= |ULTIMATE.start_dll_append_~head#1.offset| 0) (<= 0 |ULTIMATE.start_dll_append_#in~head#1.offset|) (<= |#NULL.offset| 0) (<= |ULTIMATE.start_main_~len~0#1| 2) (= |ULTIMATE.start_main_~ptr~0#1.offset| 0) (<= |ULTIMATE.start_dll_create_~data#1| 1) (= |ULTIMATE.start_main_~ptr~0#1.base| 0) (<= |ULTIMATE.start_dll_append_~new_last~0#1.offset| 0) (<= 0 |ULTIMATE.start_dll_append_~new_last~0#1.offset|) (<= 0 |ULTIMATE.start_dll_create_~len#1|) (<= 1 |ULTIMATE.start_dll_append_#in~data#1|) (<= |#NULL.base| 0) (<= |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_~#s~0#1.offset| 0) (<= 0 |ULTIMATE.start_dll_append_~head#1.offset|) (<= 0 |ULTIMATE.start_main_~#s~0#1.base|) (<= |ULTIMATE.start_dll_create_#in~data#1| 1) (<= |ULTIMATE.start_dll_append_#in~head#1.offset| 0) (<= |ULTIMATE.start_dll_create_~head~0#1.offset| 0) (<= 1 |ULTIMATE.start_dll_append_~data#1|) (<= 0 |ULTIMATE.start_dll_create_~head~0#1.offset|) (<= 0 |#NULL.offset|) (<= 1 |ULTIMATE.start_main_~data~0#1|) (<= 0 |ULTIMATE.start_dll_append_~head#1.base|) (<= |ULTIMATE.start_dll_append_#in~data#1| 1) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_dll_create_#res#1.offset|) (<= 0 |ULTIMATE.start_main_~#s~0#1.offset|))' at error location [2022-11-03 01:49:43,977 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 01:49:43,977 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-03 01:49:43,977 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 22] total 37 [2022-11-03 01:49:43,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475816208] [2022-11-03 01:49:43,977 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-03 01:49:43,978 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2022-11-03 01:49:43,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:49:43,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2022-11-03 01:49:43,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=226, Invalid=3420, Unknown=14, NotChecked=0, Total=3660 [2022-11-03 01:49:43,981 INFO L87 Difference]: Start difference. First operand 29 states and 35 transitions. Second operand has 37 states, 29 states have (on average 1.4827586206896552) internal successors, (43), 29 states have internal predecessors, (43), 6 states have call successors, (6), 3 states have call predecessors, (6), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-03 01:49:45,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:49:45,285 INFO L93 Difference]: Finished difference Result 40 states and 50 transitions. [2022-11-03 01:49:45,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-03 01:49:45,286 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 29 states have (on average 1.4827586206896552) internal successors, (43), 29 states have internal predecessors, (43), 6 states have call successors, (6), 3 states have call predecessors, (6), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Word has length 29 [2022-11-03 01:49:45,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:49:45,287 INFO L225 Difference]: With dead ends: 40 [2022-11-03 01:49:45,287 INFO L226 Difference]: Without dead ends: 31 [2022-11-03 01:49:45,289 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 29 SyntacticMatches, 1 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1409 ImplicationChecksByTransitivity, 14.9s TimeCoverageRelationStatistics Valid=329, Invalid=4627, Unknown=14, NotChecked=0, Total=4970 [2022-11-03 01:49:45,289 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 17 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 400 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 427 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 400 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 9 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-03 01:49:45,290 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 172 Invalid, 427 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 400 Invalid, 0 Unknown, 9 Unchecked, 0.5s Time] [2022-11-03 01:49:45,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2022-11-03 01:49:45,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 28. [2022-11-03 01:49:45,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 23 states have (on average 1.2173913043478262) internal successors, (28), 23 states have internal predecessors, (28), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-03 01:49:45,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 34 transitions. [2022-11-03 01:49:45,308 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 34 transitions. Word has length 29 [2022-11-03 01:49:45,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:49:45,308 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 34 transitions. [2022-11-03 01:49:45,309 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 29 states have (on average 1.4827586206896552) internal successors, (43), 29 states have internal predecessors, (43), 6 states have call successors, (6), 3 states have call predecessors, (6), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-03 01:49:45,309 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 34 transitions. [2022-11-03 01:49:45,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-03 01:49:45,310 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:49:45,310 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:49:45,348 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84f73a98-6ba7-47ba-9041-43c9024ecefb/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-03 01:49:45,522 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84f73a98-6ba7-47ba-9041-43c9024ecefb/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:49:45,523 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:49:45,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:49:45,523 INFO L85 PathProgramCache]: Analyzing trace with hash -1925442722, now seen corresponding path program 1 times [2022-11-03 01:49:45,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:49:45,524 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798107433] [2022-11-03 01:49:45,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:49:45,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:49:45,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:49:48,384 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 13 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-03 01:49:48,384 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:49:48,384 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [798107433] [2022-11-03 01:49:48,385 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [798107433] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 01:49:48,385 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [429656063] [2022-11-03 01:49:48,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:49:48,385 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:49:48,385 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84f73a98-6ba7-47ba-9041-43c9024ecefb/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:49:48,391 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84f73a98-6ba7-47ba-9041-43c9024ecefb/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 01:49:48,422 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84f73a98-6ba7-47ba-9041-43c9024ecefb/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-03 01:49:49,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:49:49,758 INFO L263 TraceCheckSpWp]: Trace formula consists of 434 conjuncts, 153 conjunts are in the unsatisfiable core [2022-11-03 01:49:49,765 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:49:49,837 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 01:49:50,142 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 5 treesize of output 3 [2022-11-03 01:49:50,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:50,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:50,221 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2022-11-03 01:49:50,233 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 01:49:50,348 INFO L356 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-03 01:49:50,348 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-03 01:49:50,511 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2022-11-03 01:49:50,521 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2022-11-03 01:49:50,530 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 28 [2022-11-03 01:49:50,546 INFO L356 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-03 01:49:50,546 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 53 treesize of output 48 [2022-11-03 01:49:50,558 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 18 treesize of output 20 [2022-11-03 01:49:50,836 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 01:49:50,836 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 1 case distinctions, treesize of input 81 treesize of output 36 [2022-11-03 01:49:50,842 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 2 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 01:49:50,864 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 11 treesize of output 7 [2022-11-03 01:49:50,869 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 7 treesize of output 3 [2022-11-03 01:49:51,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:51,075 INFO L356 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-11-03 01:49:51,075 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 89 treesize of output 71 [2022-11-03 01:49:51,097 INFO L356 Elim1Store]: treesize reduction 19, result has 47.2 percent of original size [2022-11-03 01:49:51,098 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 18 treesize of output 28 [2022-11-03 01:49:51,104 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 5 treesize of output 3 [2022-11-03 01:49:51,150 INFO L356 Elim1Store]: treesize reduction 8, result has 72.4 percent of original size [2022-11-03 01:49:51,150 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 28 treesize of output 30 [2022-11-03 01:49:51,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:51,173 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 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 01:49:52,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:52,237 INFO L356 Elim1Store]: treesize reduction 82, result has 16.3 percent of original size [2022-11-03 01:49:52,237 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 5 new quantified variables, introduced 7 case distinctions, treesize of input 194 treesize of output 141 [2022-11-03 01:49:52,267 INFO L356 Elim1Store]: treesize reduction 29, result has 19.4 percent of original size [2022-11-03 01:49:52,268 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 3 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 58 [2022-11-03 01:49:52,278 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 33 [2022-11-03 01:49:52,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:52,289 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 14 treesize of output 16 [2022-11-03 01:49:52,405 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 01:49:52,405 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 1 case distinctions, treesize of input 68 treesize of output 31 [2022-11-03 01:49:52,412 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 15 treesize of output 7 [2022-11-03 01:49:52,495 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 15 treesize of output 7 [2022-11-03 01:49:52,558 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 5 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 01:49:52,558 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 01:49:52,575 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1757 (Array Int Int)) (v_ArrVal_1756 (Array Int Int)) (v_ArrVal_1754 (Array Int Int)) (v_ArrVal_1760 (Array Int Int)) (v_ArrVal_1755 Int) (v_ArrVal_1759 (Array Int Int))) (= |c_ULTIMATE.start_main_~data~0#1| (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_dll_append_~last~0#1.base| v_ArrVal_1759) |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_1754) (select (select (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_append_~last~0#1.base| v_ArrVal_1757) |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_1760) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (select (select (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_append_~last~0#1.base| (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_append_~last~0#1.base|) (+ |c_ULTIMATE.start_dll_append_~last~0#1.offset| 4) v_ArrVal_1755)) |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_1756) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)))) is different from false [2022-11-03 01:49:52,831 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1757 (Array Int Int)) (v_ArrVal_1756 (Array Int Int)) (v_ArrVal_1754 (Array Int Int)) (v_ArrVal_1760 (Array Int Int)) (|v_ULTIMATE.start_dll_append_~last~0#1.offset_17| Int) (v_ArrVal_1755 Int) (v_ArrVal_1759 (Array Int Int))) (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_append_~last~0#1.base|) (+ |c_ULTIMATE.start_dll_append_~last~0#1.offset| 4))) (.cse1 (+ |v_ULTIMATE.start_dll_append_~last~0#1.offset_17| 4))) (or (not (= (select (select |c_#memory_$Pointer$.base| .cse0) .cse1) 0)) (= |c_ULTIMATE.start_main_~data~0#1| (select (select (store (store |c_#memory_int| .cse0 v_ArrVal_1759) |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_1754) (select (select (store (store |c_#memory_$Pointer$.base| .cse0 v_ArrVal_1757) |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_1760) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (select (select (store (store |c_#memory_$Pointer$.offset| .cse0 (store (select |c_#memory_$Pointer$.offset| .cse0) .cse1 v_ArrVal_1755)) |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_1756) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)))))) is different from false [2022-11-03 01:49:52,859 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1757 (Array Int Int)) (v_ArrVal_1756 (Array Int Int)) (v_ArrVal_1754 (Array Int Int)) (v_ArrVal_1760 (Array Int Int)) (|v_ULTIMATE.start_dll_append_~last~0#1.offset_17| Int) (v_ArrVal_1755 Int) (v_ArrVal_1759 (Array Int Int))) (let ((.cse0 (select (select |c_#memory_$Pointer$.base| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_append_~head#1.base|) |c_ULTIMATE.start_dll_append_~head#1.offset|)) (+ (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_append_~head#1.base|) |c_ULTIMATE.start_dll_append_~head#1.offset|) 4))) (.cse1 (+ |v_ULTIMATE.start_dll_append_~last~0#1.offset_17| 4))) (or (= |c_ULTIMATE.start_main_~data~0#1| (select (select (store (store |c_#memory_int| .cse0 v_ArrVal_1759) |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_1754) (select (select (store (store |c_#memory_$Pointer$.base| .cse0 v_ArrVal_1757) |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_1760) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (select (select (store (store |c_#memory_$Pointer$.offset| .cse0 (store (select |c_#memory_$Pointer$.offset| .cse0) .cse1 v_ArrVal_1755)) |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_1756) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (not (= 0 (select (select |c_#memory_$Pointer$.base| .cse0) .cse1)))))) is different from false [2022-11-03 01:49:53,131 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1769 (Array Int Int)) (v_ArrVal_1757 (Array Int Int)) (v_ArrVal_1756 (Array Int Int)) (v_ArrVal_1754 (Array Int Int)) (|v_ULTIMATE.start_dll_append_#t~ret7#1.base_36| Int) (v_ArrVal_1771 (Array Int Int)) (v_ArrVal_1760 (Array Int Int)) (v_ArrVal_1770 (Array Int Int)) (|v_ULTIMATE.start_dll_append_~last~0#1.offset_17| Int) (v_ArrVal_1755 Int) (v_ArrVal_1759 (Array Int Int))) (let ((.cse1 (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_dll_append_#t~ret7#1.base_36| v_ArrVal_1769)) (.cse2 (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_dll_append_#t~ret7#1.base_36| v_ArrVal_1771))) (let ((.cse0 (select (select .cse1 (select (select .cse1 |c_ULTIMATE.start_dll_append_~head#1.base|) |c_ULTIMATE.start_dll_append_~head#1.offset|)) (+ (select (select .cse2 |c_ULTIMATE.start_dll_append_~head#1.base|) |c_ULTIMATE.start_dll_append_~head#1.offset|) 4))) (.cse3 (+ |v_ULTIMATE.start_dll_append_~last~0#1.offset_17| 4))) (or (not (< |v_ULTIMATE.start_dll_append_#t~ret7#1.base_36| |c_#StackHeapBarrier|)) (= |c_ULTIMATE.start_main_~data~0#1| (select (select (store (store (store |c_#memory_int| |v_ULTIMATE.start_dll_append_#t~ret7#1.base_36| v_ArrVal_1770) .cse0 v_ArrVal_1759) |v_ULTIMATE.start_dll_append_#t~ret7#1.base_36| v_ArrVal_1754) (select (select (store (store .cse1 .cse0 v_ArrVal_1757) |v_ULTIMATE.start_dll_append_#t~ret7#1.base_36| v_ArrVal_1760) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (select (select (store (store .cse2 .cse0 (store (select .cse2 .cse0) .cse3 v_ArrVal_1755)) |v_ULTIMATE.start_dll_append_#t~ret7#1.base_36| v_ArrVal_1756) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (not (= (select |c_#valid| |v_ULTIMATE.start_dll_append_#t~ret7#1.base_36|) 0)) (not (= (select (select .cse1 .cse0) .cse3) 0)))))) is different from false [2022-11-03 01:49:53,134 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [429656063] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 01:49:53,134 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [692275313] [2022-11-03 01:49:53,136 INFO L159 IcfgInterpreter]: Started Sifa with 18 locations of interest [2022-11-03 01:49:53,136 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 01:49:53,137 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 01:49:53,137 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 01:49:53,137 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 01:49:53,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:53,169 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-03 01:49:53,169 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 17 treesize of output 26 [2022-11-03 01:49:53,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:53,200 INFO L356 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-03 01:49:53,201 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 27 treesize of output 37 [2022-11-03 01:49:53,245 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 01:49:53,249 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 01:49:53,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:53,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:53,260 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 19 [2022-11-03 01:49:53,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:53,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:53,269 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 19 [2022-11-03 01:49:53,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:53,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:53,285 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2022-11-03 01:49:53,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:53,307 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 16 treesize of output 10 [2022-11-03 01:49:53,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:53,322 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2022-11-03 01:49:53,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:53,361 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 16 treesize of output 10 [2022-11-03 01:49:53,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:53,375 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2022-11-03 01:49:53,448 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:49:53,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:53,488 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 242 treesize of output 219 [2022-11-03 01:49:53,508 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:49:53,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:53,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:53,520 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:49:53,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:53,560 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 227 treesize of output 210 [2022-11-03 01:49:53,581 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:49:53,582 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:49:53,627 INFO L356 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-11-03 01:49:53,628 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 348 treesize of output 342 [2022-11-03 01:49:53,651 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:49:53,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:53,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:53,657 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:49:53,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:53,672 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 231 treesize of output 115 [2022-11-03 01:49:53,702 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 133 treesize of output 144 [2022-11-03 01:49:53,747 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 41 [2022-11-03 01:49:53,757 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 3 [2022-11-03 01:49:53,769 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 28 treesize of output 16 [2022-11-03 01:49:53,852 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 7 treesize of output 3 [2022-11-03 01:49:53,865 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-11-03 01:49:53,876 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 5 treesize of output 3 [2022-11-03 01:49:53,887 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 5 treesize of output 3 [2022-11-03 01:49:53,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:53,901 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 28 [2022-11-03 01:49:53,912 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 26 treesize of output 14 [2022-11-03 01:49:53,923 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 5 treesize of output 3 [2022-11-03 01:49:53,970 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 5 treesize of output 3 [2022-11-03 01:49:53,980 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 7 treesize of output 3 [2022-11-03 01:49:53,994 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-11-03 01:49:54,006 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 5 treesize of output 3 [2022-11-03 01:49:54,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:54,026 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 28 [2022-11-03 01:49:54,038 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 26 treesize of output 14 [2022-11-03 01:49:54,049 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 5 treesize of output 3 [2022-11-03 01:49:54,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:54,112 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:49:54,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:54,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:54,124 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 141 treesize of output 152 [2022-11-03 01:49:54,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:54,162 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-03 01:49:54,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:54,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:54,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:54,193 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 131 treesize of output 142 [2022-11-03 01:49:54,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:54,269 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 11 [2022-11-03 01:49:54,324 INFO L356 Elim1Store]: treesize reduction 28, result has 22.2 percent of original size [2022-11-03 01:49:54,325 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 195 treesize of output 158 [2022-11-03 01:49:54,359 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 3 [2022-11-03 01:49:54,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:54,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:54,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:54,375 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 152 treesize of output 112 [2022-11-03 01:49:54,436 INFO L356 Elim1Store]: treesize reduction 25, result has 35.9 percent of original size [2022-11-03 01:49:54,436 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 3 case distinctions, treesize of input 87 treesize of output 55 [2022-11-03 01:49:54,448 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 11 treesize of output 3 [2022-11-03 01:49:54,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:54,462 INFO L356 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2022-11-03 01:49:54,462 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 4 new quantified variables, introduced 2 case distinctions, treesize of input 52 treesize of output 39 [2022-11-03 01:49:54,710 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 7 treesize of output 3 [2022-11-03 01:49:54,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:54,734 INFO L356 Elim1Store]: treesize reduction 38, result has 2.6 percent of original size [2022-11-03 01:49:54,735 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 185 treesize of output 132 [2022-11-03 01:49:54,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:54,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:54,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:54,760 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 01:49:54,761 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 154 treesize of output 101 [2022-11-03 01:49:54,779 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 71 treesize of output 63 [2022-11-03 01:49:54,794 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 15 treesize of output 7 [2022-11-03 01:49:54,806 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 01:49:54,807 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 01:49:54,809 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 01:49:55,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:55,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:55,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:55,021 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 01:49:55,021 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 193 treesize of output 126 [2022-11-03 01:49:55,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:55,048 INFO L356 Elim1Store]: treesize reduction 34, result has 2.9 percent of original size [2022-11-03 01:49:55,049 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 154 treesize of output 109 [2022-11-03 01:49:55,067 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 71 treesize of output 63 [2022-11-03 01:49:55,083 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 15 treesize of output 7 [2022-11-03 01:49:55,094 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 7 treesize of output 3 [2022-11-03 01:49:55,103 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 01:49:55,105 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 01:49:55,107 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 01:49:55,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:55,179 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:49:55,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:55,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:55,184 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 141 treesize of output 147 [2022-11-03 01:49:55,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:55,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:55,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:55,216 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 131 treesize of output 137 [2022-11-03 01:49:55,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:55,247 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 22 treesize of output 7 [2022-11-03 01:49:55,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:55,332 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 57 treesize of output 11 [2022-11-03 01:49:55,363 INFO L356 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2022-11-03 01:49:55,364 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 2 case distinctions, treesize of input 197 treesize of output 174 [2022-11-03 01:49:55,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:55,377 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 156 treesize of output 126 [2022-11-03 01:49:55,427 INFO L356 Elim1Store]: treesize reduction 23, result has 4.2 percent of original size [2022-11-03 01:49:55,427 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 190 treesize of output 149 [2022-11-03 01:49:55,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:49:55,438 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 149 treesize of output 119 [2022-11-03 01:49:55,561 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 7 treesize of output 3 [2022-11-03 01:49:55,574 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 7 treesize of output 3 [2022-11-03 01:49:55,628 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 7 treesize of output 3 [2022-11-03 01:49:55,645 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 7 treesize of output 3 [2022-11-03 01:49:55,947 INFO L356 Elim1Store]: treesize reduction 27, result has 41.3 percent of original size [2022-11-03 01:49:55,947 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 1 case distinctions, treesize of input 39 treesize of output 19 [2022-11-03 01:49:55,974 INFO L356 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2022-11-03 01:49:55,975 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 29 [2022-11-03 01:49:56,001 INFO L356 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2022-11-03 01:49:56,001 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 1 case distinctions, treesize of input 33 treesize of output 19 [2022-11-03 01:49:56,134 INFO L197 IcfgInterpreter]: Interpreting procedure node_create with input of size 43 for LOIs [2022-11-03 01:49:56,247 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 01:50:02,950 WARN L234 SmtUtils]: Spent 5.20s on a formula simplification. DAG size of input: 86 DAG size of output: 72 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 01:50:06,278 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1941#(and (<= 1 |ULTIMATE.start_dll_create_~data#1|) (<= 0 |ULTIMATE.start_dll_append_#in~head#1.base|) (<= 2 |ULTIMATE.start_dll_create_#in~len#1|) (<= |ULTIMATE.start_dll_append_~data#1| 1) (<= |ULTIMATE.start_dll_create_#res#1.offset| 0) (= |ULTIMATE.start_main_~ptr~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0#1.base|) |ULTIMATE.start_main_~#s~0#1.offset|)) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0#1.base|) |ULTIMATE.start_main_~#s~0#1.offset|) |ULTIMATE.start_main_~ptr~0#1.offset|) (<= |ULTIMATE.start_dll_append_~head#1.offset| 0) (or (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_dll_append_~last~0#1.base|) (+ |ULTIMATE.start_dll_append_~last~0#1.offset| 4)) |ULTIMATE.start_dll_append_~new_last~0#1.offset|) (and (= |ULTIMATE.start_dll_append_~last~0#1.offset| (+ |ULTIMATE.start_dll_append_~new_last~0#1.offset| 4)) (= |ULTIMATE.start_dll_append_~last~0#1.base| |ULTIMATE.start_dll_append_~new_last~0#1.base|))) (or (not (= |ULTIMATE.start_main_~ptr~0#1.base| 0)) (not (= |ULTIMATE.start_main_~ptr~0#1.offset| 0))) (<= 0 |ULTIMATE.start_dll_append_#in~head#1.offset|) (= |ULTIMATE.start_dll_append_~new_last~0#1.offset| 0) (<= |ULTIMATE.start_dll_create_~data#1| 1) (= |ULTIMATE.start_main_~count~0#1| 0) (not (= |ULTIMATE.start_main_~data~0#1| (select (select |#memory_int| |ULTIMATE.start_main_~ptr~0#1.base|) |ULTIMATE.start_main_~ptr~0#1.offset|))) (= |ULTIMATE.start_main_~data~0#1| 1) (<= 1 |ULTIMATE.start_dll_append_#in~data#1|) (<= |ULTIMATE.start_dll_create_#in~len#1| 2) (= |ULTIMATE.start_main_~#s~0#1.offset| 0) (<= |ULTIMATE.start_dll_create_~len#1| 0) (<= 1 |ULTIMATE.start_dll_create_#in~data#1|) (= |ULTIMATE.start_main_~len~0#1| 2) (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_dll_append_~new_last~0#1.base|) (+ |ULTIMATE.start_dll_append_~new_last~0#1.offset| 8)) |ULTIMATE.start_dll_append_~last~0#1.base|) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_dll_append_~head#1.offset|) (<= 0 |ULTIMATE.start_main_~#s~0#1.base|) (<= |ULTIMATE.start_dll_create_#in~data#1| 1) (<= |ULTIMATE.start_dll_append_#in~head#1.offset| 0) (<= |ULTIMATE.start_dll_create_~head~0#1.offset| 0) (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_dll_append_~last~0#1.base|) (+ |ULTIMATE.start_dll_append_~last~0#1.offset| 4)) |ULTIMATE.start_dll_append_~new_last~0#1.base|) (<= 1 |ULTIMATE.start_dll_append_~data#1|) (<= 0 |ULTIMATE.start_dll_create_~head~0#1.offset|) (= |ULTIMATE.start_dll_append_~last~0#1.offset| (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_dll_append_~new_last~0#1.base|) (+ |ULTIMATE.start_dll_append_~new_last~0#1.offset| 8))) (<= 0 |ULTIMATE.start_dll_append_~head#1.base|) (<= |ULTIMATE.start_dll_append_#in~data#1| 1) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_dll_create_#res#1.offset|) (= |#NULL.base| 0))' at error location [2022-11-03 01:50:06,278 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 01:50:06,278 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-03 01:50:06,278 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 25] total 43 [2022-11-03 01:50:06,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931095488] [2022-11-03 01:50:06,279 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-03 01:50:06,279 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2022-11-03 01:50:06,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:50:06,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2022-11-03 01:50:06,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=218, Invalid=3333, Unknown=5, NotChecked=476, Total=4032 [2022-11-03 01:50:06,282 INFO L87 Difference]: Start difference. First operand 28 states and 34 transitions. Second operand has 43 states, 35 states have (on average 1.2571428571428571) internal successors, (44), 34 states have internal predecessors, (44), 6 states have call successors, (6), 3 states have call predecessors, (6), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-03 01:50:08,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:50:08,537 INFO L93 Difference]: Finished difference Result 43 states and 52 transitions. [2022-11-03 01:50:08,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-03 01:50:08,538 INFO L78 Accepts]: Start accepts. Automaton has has 43 states, 35 states have (on average 1.2571428571428571) internal successors, (44), 34 states have internal predecessors, (44), 6 states have call successors, (6), 3 states have call predecessors, (6), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Word has length 29 [2022-11-03 01:50:08,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:50:08,540 INFO L225 Difference]: With dead ends: 43 [2022-11-03 01:50:08,541 INFO L226 Difference]: Without dead ends: 41 [2022-11-03 01:50:08,543 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 29 SyntacticMatches, 1 SemanticMatches, 74 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 1007 ImplicationChecksByTransitivity, 13.9s TimeCoverageRelationStatistics Valid=342, Invalid=4781, Unknown=5, NotChecked=572, Total=5700 [2022-11-03 01:50:08,546 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 31 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 666 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 166 SdHoareTripleChecker+Invalid, 708 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 666 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 26 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-03 01:50:08,547 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 166 Invalid, 708 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 666 Invalid, 0 Unknown, 26 Unchecked, 1.1s Time] [2022-11-03 01:50:08,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2022-11-03 01:50:08,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 34. [2022-11-03 01:50:08,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 29 states have (on average 1.206896551724138) internal successors, (35), 29 states have internal predecessors, (35), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-03 01:50:08,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 41 transitions. [2022-11-03 01:50:08,579 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 41 transitions. Word has length 29 [2022-11-03 01:50:08,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:50:08,582 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 41 transitions. [2022-11-03 01:50:08,583 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 35 states have (on average 1.2571428571428571) internal successors, (44), 34 states have internal predecessors, (44), 6 states have call successors, (6), 3 states have call predecessors, (6), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-03 01:50:08,583 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 41 transitions. [2022-11-03 01:50:08,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-03 01:50:08,590 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:50:08,590 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:50:08,644 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84f73a98-6ba7-47ba-9041-43c9024ecefb/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-03 01:50:08,818 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84f73a98-6ba7-47ba-9041-43c9024ecefb/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:50:08,819 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:50:08,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:50:08,819 INFO L85 PathProgramCache]: Analyzing trace with hash 780483385, now seen corresponding path program 1 times [2022-11-03 01:50:08,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:50:08,820 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362665196] [2022-11-03 01:50:08,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:50:08,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:50:08,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:50:14,059 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 01:50:14,059 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:50:14,059 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362665196] [2022-11-03 01:50:14,059 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [362665196] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 01:50:14,060 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1413596703] [2022-11-03 01:50:14,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:50:14,060 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:50:14,060 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84f73a98-6ba7-47ba-9041-43c9024ecefb/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:50:14,061 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84f73a98-6ba7-47ba-9041-43c9024ecefb/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 01:50:14,063 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84f73a98-6ba7-47ba-9041-43c9024ecefb/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-03 01:50:14,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:50:14,749 INFO L263 TraceCheckSpWp]: Trace formula consists of 445 conjuncts, 187 conjunts are in the unsatisfiable core [2022-11-03 01:50:14,760 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:50:14,866 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 01:50:15,141 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 14 treesize of output 15 [2022-11-03 01:50:15,284 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 5 treesize of output 3 [2022-11-03 01:50:15,288 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 7 treesize of output 3 [2022-11-03 01:50:15,490 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-03 01:50:15,490 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 14 treesize of output 20 [2022-11-03 01:50:15,498 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 5 treesize of output 3 [2022-11-03 01:50:15,533 INFO L356 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-03 01:50:15,533 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 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 01:50:15,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:50:15,730 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 22 treesize of output 19 [2022-11-03 01:50:15,739 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 0 case distinctions, treesize of input 14 treesize of output 14 [2022-11-03 01:50:15,772 INFO L356 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-03 01:50:15,772 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 73 treesize of output 66 [2022-11-03 01:50:15,790 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 18 [2022-11-03 01:50:15,796 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 18 treesize of output 20 [2022-11-03 01:50:15,805 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 18 treesize of output 26 [2022-11-03 01:50:16,191 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 01:50:16,192 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 1 case distinctions, treesize of input 88 treesize of output 39 [2022-11-03 01:50:16,206 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 01:50:16,206 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 7 [2022-11-03 01:50:16,214 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-03 01:50:16,221 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 7 treesize of output 3 [2022-11-03 01:50:16,302 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2022-11-03 01:50:16,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:50:16,479 INFO L356 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-11-03 01:50:16,479 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 96 treesize of output 74 [2022-11-03 01:50:16,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:50:16,506 INFO L356 Elim1Store]: treesize reduction 31, result has 35.4 percent of original size [2022-11-03 01:50:16,506 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 2 case distinctions, treesize of input 25 treesize of output 38 [2022-11-03 01:50:16,545 INFO L356 Elim1Store]: treesize reduction 8, result has 72.4 percent of original size [2022-11-03 01:50:16,546 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 28 treesize of output 30 [2022-11-03 01:50:16,566 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 24 [2022-11-03 01:50:17,957 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:50:18,021 INFO L356 Elim1Store]: treesize reduction 135, result has 17.2 percent of original size [2022-11-03 01:50:18,021 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 7 new quantified variables, introduced 9 case distinctions, treesize of input 303 treesize of output 147 [2022-11-03 01:50:18,077 INFO L356 Elim1Store]: treesize reduction 66, result has 19.5 percent of original size [2022-11-03 01:50:18,078 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 414 treesize of output 245 [2022-11-03 01:50:18,140 INFO L356 Elim1Store]: treesize reduction 128, result has 19.0 percent of original size [2022-11-03 01:50:18,140 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 6 new quantified variables, introduced 6 case distinctions, treesize of input 339 treesize of output 287 [2022-11-03 01:50:18,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:50:18,155 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 128 treesize of output 81 [2022-11-03 01:50:18,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:50:18,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:50:18,176 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-11-03 01:50:18,177 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 1 case distinctions, treesize of input 67 treesize of output 69 [2022-11-03 01:50:18,733 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:50:18,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:50:18,746 INFO L356 Elim1Store]: treesize reduction 43, result has 6.5 percent of original size [2022-11-03 01:50:18,747 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 218 treesize of output 89 [2022-11-03 01:50:18,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:50:18,766 INFO L356 Elim1Store]: treesize reduction 18, result has 14.3 percent of original size [2022-11-03 01:50:18,766 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 44 treesize of output 24 [2022-11-03 01:50:18,923 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2022-11-03 01:50:19,019 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 01:50:19,020 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 01:50:19,270 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2045 Int) (v_ArrVal_2046 Int) (v_ArrVal_2043 (Array Int Int)) (v_ArrVal_2041 (Array Int Int))) (= |c_ULTIMATE.start_main_~data~0#1| (let ((.cse1 (+ |c_ULTIMATE.start_dll_append_~last~0#1.offset| 4))) (let ((.cse5 (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_append_~last~0#1.base| (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_append_~last~0#1.base|) .cse1 |c_ULTIMATE.start_dll_append_~new_last~0#1.offset|)) |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_2043)) (.cse2 (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_append_~last~0#1.base| (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_append_~last~0#1.base|) .cse1 |c_ULTIMATE.start_dll_append_~new_last~0#1.base|)) |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_2041))) (let ((.cse3 (select (select .cse2 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (.cse4 (+ (select (select .cse5 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 4))) (select (select (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_dll_append_~last~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_dll_append_~last~0#1.base|) .cse1 v_ArrVal_2046)))) (store .cse0 |c_ULTIMATE.start_dll_append_~new_last~0#1.base| (store (select .cse0 |c_ULTIMATE.start_dll_append_~new_last~0#1.base|) (+ |c_ULTIMATE.start_dll_append_~new_last~0#1.offset| 8) v_ArrVal_2045))) (select (select .cse2 .cse3) .cse4)) (select (select .cse5 .cse3) .cse4))))))) is different from false [2022-11-03 01:50:20,725 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 01:50:20,726 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 569 treesize of output 564 [2022-11-03 01:50:21,593 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1413596703] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 01:50:21,593 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [513315842] [2022-11-03 01:50:21,595 INFO L159 IcfgInterpreter]: Started Sifa with 18 locations of interest [2022-11-03 01:50:21,596 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 01:50:21,596 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 01:50:21,596 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 01:50:21,596 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 01:50:21,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:50:21,640 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-03 01:50:21,641 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 17 treesize of output 26 [2022-11-03 01:50:21,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:50:21,671 INFO L356 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-03 01:50:21,672 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 27 treesize of output 37 [2022-11-03 01:50:21,701 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 01:50:21,706 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 01:50:21,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:50:21,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:50:21,718 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 19 [2022-11-03 01:50:21,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:50:21,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:50:21,735 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2022-11-03 01:50:21,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:50:21,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:50:21,744 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 19 [2022-11-03 01:50:21,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:50:21,775 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 16 treesize of output 10 [2022-11-03 01:50:21,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:50:21,788 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2022-11-03 01:50:21,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:50:21,828 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 16 treesize of output 10 [2022-11-03 01:50:21,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:50:21,839 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2022-11-03 01:50:21,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:50:21,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:50:21,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:50:21,881 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:50:21,882 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 31 treesize of output 30 [2022-11-03 01:50:21,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:50:21,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:50:21,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:50:21,906 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:50:21,907 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 31 treesize of output 30 [2022-11-03 01:50:21,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:50:21,922 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 30 treesize of output 11 [2022-11-03 01:50:21,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:50:21,988 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2022-11-03 01:50:21,999 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 7 treesize of output 3 [2022-11-03 01:50:22,009 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 5 treesize of output 3 [2022-11-03 01:50:22,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:50:22,022 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2022-11-03 01:50:22,033 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 5 treesize of output 3 [2022-11-03 01:50:22,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:50:22,093 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2022-11-03 01:50:22,102 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 5 treesize of output 3 [2022-11-03 01:50:22,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:50:22,117 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2022-11-03 01:50:22,129 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 7 treesize of output 3 [2022-11-03 01:50:22,141 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 5 treesize of output 3 [2022-11-03 01:50:22,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:50:22,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:50:22,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:50:22,209 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 141 treesize of output 147 [2022-11-03 01:50:22,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:50:22,236 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:50:22,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:50:22,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:50:22,243 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 143 treesize of output 155 [2022-11-03 01:50:22,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:50:22,270 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-03 01:50:22,319 INFO L356 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2022-11-03 01:50:22,320 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 2 case distinctions, treesize of input 189 treesize of output 162 [2022-11-03 01:50:22,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:50:22,336 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 144 treesize of output 106 [2022-11-03 01:50:22,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:50:22,390 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 57 treesize of output 11 [2022-11-03 01:50:22,407 INFO L356 Elim1Store]: treesize reduction 23, result has 4.2 percent of original size [2022-11-03 01:50:22,408 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 133 treesize of output 94 [2022-11-03 01:50:22,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:50:22,416 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 94 treesize of output 68 [2022-11-03 01:50:22,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:50:22,523 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 0 case distinctions, treesize of input 148 treesize of output 110 [2022-11-03 01:50:22,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:50:22,538 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 0 case distinctions, treesize of input 204 treesize of output 112 [2022-11-03 01:50:22,558 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 01:50:22,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:50:22,569 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 18 treesize of output 12 [2022-11-03 01:50:22,587 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 01:50:22,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:50:22,599 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 18 treesize of output 12 [2022-11-03 01:50:22,625 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 7 treesize of output 3 [2022-11-03 01:50:22,694 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 7 treesize of output 3 [2022-11-03 01:50:22,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:50:22,710 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 0 case distinctions, treesize of input 148 treesize of output 110 [2022-11-03 01:50:22,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:50:22,726 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 0 case distinctions, treesize of input 204 treesize of output 112 [2022-11-03 01:50:22,750 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 01:50:22,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:50:22,762 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 18 treesize of output 12 [2022-11-03 01:50:22,785 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 01:50:22,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:50:22,797 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 18 treesize of output 12 [2022-11-03 01:50:22,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:50:22,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:50:22,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:50:22,867 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 141 treesize of output 147 [2022-11-03 01:50:22,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:50:22,899 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:50:22,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:50:22,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:50:22,905 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 143 treesize of output 155 [2022-11-03 01:50:22,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:50:22,940 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-03 01:50:22,990 INFO L356 Elim1Store]: treesize reduction 23, result has 4.2 percent of original size [2022-11-03 01:50:22,991 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 52 treesize of output 23 [2022-11-03 01:50:23,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:50:23,005 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 23 treesize of output 17 [2022-11-03 01:50:23,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:50:23,032 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 57 treesize of output 11 [2022-11-03 01:50:23,070 INFO L356 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2022-11-03 01:50:23,071 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 115 treesize of output 98 [2022-11-03 01:50:23,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:50:23,082 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 80 treesize of output 62 [2022-11-03 01:50:23,229 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 7 treesize of output 3 [2022-11-03 01:50:23,252 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 7 treesize of output 3 [2022-11-03 01:50:23,313 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 7 treesize of output 3 [2022-11-03 01:50:23,336 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 7 treesize of output 3 [2022-11-03 01:50:23,609 INFO L356 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2022-11-03 01:50:23,610 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 1 case distinctions, treesize of input 33 treesize of output 19 [2022-11-03 01:50:23,645 INFO L356 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2022-11-03 01:50:23,646 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 1 case distinctions, treesize of input 33 treesize of output 29 [2022-11-03 01:50:23,689 INFO L356 Elim1Store]: treesize reduction 27, result has 41.3 percent of original size [2022-11-03 01:50:23,689 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 1 case distinctions, treesize of input 39 treesize of output 19 [2022-11-03 01:50:23,849 INFO L197 IcfgInterpreter]: Interpreting procedure node_create with input of size 43 for LOIs [2022-11-03 01:50:23,962 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 01:50:30,695 WARN L234 SmtUtils]: Spent 5.01s on a formula simplification. DAG size of input: 86 DAG size of output: 72 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 01:50:33,964 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2281#(and (<= 0 |ULTIMATE.start_main_~count~0#1|) (<= 1 |ULTIMATE.start_dll_create_~data#1|) (<= 0 |ULTIMATE.start_dll_append_#in~head#1.base|) (<= 2 |ULTIMATE.start_dll_create_#in~len#1|) (<= |ULTIMATE.start_dll_append_~data#1| 1) (<= |ULTIMATE.start_dll_create_#res#1.offset| 0) (<= |ULTIMATE.start_dll_append_~head#1.offset| 0) (or (not (= |ULTIMATE.start_main_~ptr~0#1.base| 0)) (not (= |ULTIMATE.start_main_~ptr~0#1.offset| 0))) (<= 0 |ULTIMATE.start_dll_append_#in~head#1.offset|) (= |ULTIMATE.start_dll_append_~new_last~0#1.offset| 0) (<= |ULTIMATE.start_dll_create_~data#1| 1) (not (= |ULTIMATE.start_main_~data~0#1| (select (select |#memory_int| |ULTIMATE.start_main_~ptr~0#1.base|) |ULTIMATE.start_main_~ptr~0#1.offset|))) (= |ULTIMATE.start_main_~data~0#1| 1) (<= 1 |ULTIMATE.start_dll_append_#in~data#1|) (<= |ULTIMATE.start_dll_create_#in~len#1| 2) (= |ULTIMATE.start_main_~#s~0#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) (<= 0 |ULTIMATE.start_dll_append_~head#1.offset|) (<= 0 |ULTIMATE.start_main_~#s~0#1.base|) (<= |ULTIMATE.start_dll_create_#in~data#1| 1) (<= |ULTIMATE.start_dll_append_#in~head#1.offset| 0) (<= |ULTIMATE.start_dll_create_~head~0#1.offset| 0) (<= 1 |ULTIMATE.start_dll_append_~data#1|) (<= 0 |ULTIMATE.start_dll_create_~head~0#1.offset|) (<= 0 |ULTIMATE.start_dll_append_~head#1.base|) (<= |ULTIMATE.start_dll_append_#in~data#1| 1) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_dll_create_#res#1.offset|) (= |#NULL.base| 0))' at error location [2022-11-03 01:50:33,964 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 01:50:33,964 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-03 01:50:33,964 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 26] total 49 [2022-11-03 01:50:33,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407208580] [2022-11-03 01:50:33,965 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-03 01:50:33,965 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2022-11-03 01:50:33,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:50:33,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2022-11-03 01:50:33,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=268, Invalid=4703, Unknown=3, NotChecked=138, Total=5112 [2022-11-03 01:50:33,969 INFO L87 Difference]: Start difference. First operand 34 states and 41 transitions. Second operand has 49 states, 41 states have (on average 1.170731707317073) internal successors, (48), 39 states have internal predecessors, (48), 6 states have call successors, (6), 4 states have call predecessors, (6), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-03 01:50:36,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:50:36,592 INFO L93 Difference]: Finished difference Result 56 states and 69 transitions. [2022-11-03 01:50:36,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-11-03 01:50:36,593 INFO L78 Accepts]: Start accepts. Automaton has has 49 states, 41 states have (on average 1.170731707317073) internal successors, (48), 39 states have internal predecessors, (48), 6 states have call successors, (6), 4 states have call predecessors, (6), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Word has length 31 [2022-11-03 01:50:36,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:50:36,594 INFO L225 Difference]: With dead ends: 56 [2022-11-03 01:50:36,594 INFO L226 Difference]: Without dead ends: 54 [2022-11-03 01:50:36,598 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 31 SyntacticMatches, 1 SemanticMatches, 81 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 1408 ImplicationChecksByTransitivity, 17.7s TimeCoverageRelationStatistics Valid=389, Invalid=6254, Unknown=3, NotChecked=160, Total=6806 [2022-11-03 01:50:36,598 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 22 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 557 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 168 SdHoareTripleChecker+Invalid, 645 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 557 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 57 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-03 01:50:36,599 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 168 Invalid, 645 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 557 Invalid, 0 Unknown, 57 Unchecked, 1.1s Time] [2022-11-03 01:50:36,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2022-11-03 01:50:36,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 50. [2022-11-03 01:50:36,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 43 states have (on average 1.186046511627907) internal successors, (51), 43 states have internal predecessors, (51), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-03 01:50:36,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 61 transitions. [2022-11-03 01:50:36,625 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 61 transitions. Word has length 31 [2022-11-03 01:50:36,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:50:36,626 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 61 transitions. [2022-11-03 01:50:36,626 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 41 states have (on average 1.170731707317073) internal successors, (48), 39 states have internal predecessors, (48), 6 states have call successors, (6), 4 states have call predecessors, (6), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-03 01:50:36,626 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 61 transitions. [2022-11-03 01:50:36,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-03 01:50:36,627 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:50:36,627 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:50:36,656 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84f73a98-6ba7-47ba-9041-43c9024ecefb/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-03 01:50:36,830 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84f73a98-6ba7-47ba-9041-43c9024ecefb/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-03 01:50:36,831 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:50:36,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:50:36,831 INFO L85 PathProgramCache]: Analyzing trace with hash 333929209, now seen corresponding path program 2 times [2022-11-03 01:50:36,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:50:36,832 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619137507] [2022-11-03 01:50:36,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:50:36,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:50:36,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:50:39,876 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 13 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-03 01:50:39,877 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:50:39,877 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619137507] [2022-11-03 01:50:39,877 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [619137507] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 01:50:39,877 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2021421787] [2022-11-03 01:50:39,878 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-03 01:50:39,878 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:50:39,878 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84f73a98-6ba7-47ba-9041-43c9024ecefb/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:50:39,879 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84f73a98-6ba7-47ba-9041-43c9024ecefb/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 01:50:39,880 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84f73a98-6ba7-47ba-9041-43c9024ecefb/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-03 01:50:40,655 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-11-03 01:50:40,655 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-03 01:50:40,664 INFO L263 TraceCheckSpWp]: Trace formula consists of 443 conjuncts, 194 conjunts are in the unsatisfiable core [2022-11-03 01:50:40,674 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:50:40,794 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 01:50:41,027 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 01:50:41,036 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 01:50:41,425 INFO L356 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-03 01:50:41,425 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 17 treesize of output 21 [2022-11-03 01:50:41,441 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 14 treesize of output 16 [2022-11-03 01:50:41,461 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 14 treesize of output 16 [2022-11-03 01:50:41,603 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2022-11-03 01:50:41,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:50:41,617 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 25 treesize of output 22 [2022-11-03 01:50:41,625 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 0 case distinctions, treesize of input 23 treesize of output 23 [2022-11-03 01:50:41,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:50:41,636 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 28 treesize of output 21 [2022-11-03 01:50:41,643 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 18 treesize of output 26 [2022-11-03 01:50:41,665 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 18 treesize of output 20 [2022-11-03 01:50:41,675 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 18 treesize of output 26 [2022-11-03 01:50:41,686 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 8 treesize of output 7 [2022-11-03 01:50:42,068 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-03 01:50:42,069 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 102 treesize of output 56 [2022-11-03 01:50:42,083 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 01:50:42,083 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 29 treesize of output 13 [2022-11-03 01:50:42,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:50:42,439 INFO L356 Elim1Store]: treesize reduction 52, result has 17.5 percent of original size [2022-11-03 01:50:42,439 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 5 new quantified variables, introduced 5 case distinctions, treesize of input 108 treesize of output 92 [2022-11-03 01:50:42,461 INFO L356 Elim1Store]: treesize reduction 19, result has 47.2 percent of original size [2022-11-03 01:50:42,461 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 28 [2022-11-03 01:50:42,474 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 5 treesize of output 3 [2022-11-03 01:50:42,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:50:42,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:50:42,520 INFO L356 Elim1Store]: treesize reduction 72, result has 37.4 percent of original size [2022-11-03 01:50:42,520 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 4 case distinctions, treesize of input 55 treesize of output 73 [2022-11-03 01:50:42,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:50:42,593 INFO L356 Elim1Store]: treesize reduction 8, result has 72.4 percent of original size [2022-11-03 01:50:42,594 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 28 treesize of output 30 [2022-11-03 01:50:44,340 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:50:44,451 INFO L356 Elim1Store]: treesize reduction 291, result has 10.5 percent of original size [2022-11-03 01:50:44,452 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 12 new quantified variables, introduced 20 case distinctions, treesize of input 440 treesize of output 177 [2022-11-03 01:50:44,522 INFO L356 Elim1Store]: treesize reduction 100, result has 20.0 percent of original size [2022-11-03 01:50:44,522 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 8 new quantified variables, introduced 10 case distinctions, treesize of input 610 treesize of output 325 [2022-11-03 01:50:44,634 INFO L356 Elim1Store]: treesize reduction 312, result has 13.1 percent of original size [2022-11-03 01:50:44,635 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 5 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 21 case distinctions, treesize of input 432 treesize of output 271 [2022-11-03 01:50:44,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:50:44,674 INFO L356 Elim1Store]: treesize reduction 99, result has 11.6 percent of original size [2022-11-03 01:50:44,674 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 5 new quantified variables, introduced 7 case distinctions, treesize of input 271 treesize of output 225 [2022-11-03 01:50:44,696 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 56 [2022-11-03 01:50:44,706 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 24 [2022-11-03 01:50:44,718 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 01:50:44,746 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 67 treesize of output 51 [2022-11-03 01:50:44,905 INFO L356 Elim1Store]: treesize reduction 21, result has 16.0 percent of original size [2022-11-03 01:50:44,906 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 6 new quantified variables, introduced 3 case distinctions, treesize of input 115 treesize of output 68 [2022-11-03 01:50:44,919 INFO L356 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-11-03 01:50:44,920 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 42 treesize of output 21 [2022-11-03 01:50:45,008 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 15 treesize of output 7 [2022-11-03 01:50:45,078 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 3 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 01:50:45,078 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 01:50:45,954 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2339 (Array Int Int)) (|v_ULTIMATE.start_dll_append_~last~0#1.offset_30| Int) (v_ArrVal_2336 (Array Int Int)) (v_ArrVal_2345 Int) (v_ArrVal_2341 (Array Int Int))) (let ((.cse0 (+ |c_ULTIMATE.start_dll_append_~last~0#1.offset| 4))) (let ((.cse1 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_append_~last~0#1.base|) .cse0))) (let ((.cse3 (select |c_#memory_$Pointer$.base| .cse1)) (.cse2 (+ |v_ULTIMATE.start_dll_append_~last~0#1.offset_30| 4))) (or (not (<= (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_append_~last~0#1.base|) .cse0) |v_ULTIMATE.start_dll_append_~last~0#1.offset_30|)) (= |c_ULTIMATE.start_main_~data~0#1| (select (select (store (store |c_#memory_int| .cse1 (store (select |c_#memory_int| .cse1) .cse2 v_ArrVal_2345)) |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_2336) (select (select (store (store |c_#memory_$Pointer$.base| .cse1 (store .cse3 .cse2 |c_ULTIMATE.start_dll_append_~new_last~0#1.base|)) |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_2339) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (select (select (store (store |c_#memory_$Pointer$.offset| .cse1 (store (select |c_#memory_$Pointer$.offset| .cse1) .cse2 |c_ULTIMATE.start_dll_append_~new_last~0#1.offset|)) |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_2341) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (not (= (select .cse3 .cse2) 0))))))) is different from false [2022-11-03 01:50:46,000 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2339 (Array Int Int)) (|v_ULTIMATE.start_dll_append_~last~0#1.offset_30| Int) (v_ArrVal_2336 (Array Int Int)) (v_ArrVal_2345 Int) (v_ArrVal_2341 (Array Int Int))) (let ((.cse5 (+ |c_ULTIMATE.start_dll_append_~last~0#1.offset| 4))) (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_append_~last~0#1.base|) .cse5)) (.cse1 (+ (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_append_~last~0#1.base|) .cse5) 4))) (let ((.cse4 (select (select |c_#memory_$Pointer$.base| .cse0) .cse1))) (let ((.cse2 (select |c_#memory_$Pointer$.base| .cse4)) (.cse3 (+ |v_ULTIMATE.start_dll_append_~last~0#1.offset_30| 4))) (or (not (<= (select (select |c_#memory_$Pointer$.offset| .cse0) .cse1) |v_ULTIMATE.start_dll_append_~last~0#1.offset_30|)) (not (= (select .cse2 .cse3) 0)) (= |c_ULTIMATE.start_main_~data~0#1| (select (select (store (store |c_#memory_int| .cse4 (store (select |c_#memory_int| .cse4) .cse3 v_ArrVal_2345)) |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_2336) (select (select (store (store |c_#memory_$Pointer$.base| .cse4 (store .cse2 .cse3 |c_ULTIMATE.start_dll_append_~new_last~0#1.base|)) |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_2339) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (select (select (store (store |c_#memory_$Pointer$.offset| .cse4 (store (select |c_#memory_$Pointer$.offset| .cse4) .cse3 |c_ULTIMATE.start_dll_append_~new_last~0#1.offset|)) |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_2341) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))))))))) is different from false [2022-11-03 01:50:47,484 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2021421787] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 01:50:47,484 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1914662706] [2022-11-03 01:50:47,486 INFO L159 IcfgInterpreter]: Started Sifa with 18 locations of interest [2022-11-03 01:50:47,487 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 01:50:47,487 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 01:50:47,487 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 01:50:47,488 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 01:50:47,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:50:47,523 INFO L356 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-03 01:50:47,524 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 27 treesize of output 37 [2022-11-03 01:50:47,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:50:47,537 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 01:50:47,567 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 01:50:47,571 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 01:50:47,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:50:47,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:50:47,590 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2022-11-03 01:50:47,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:50:47,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:50:47,599 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 19 [2022-11-03 01:50:47,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:50:47,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:50:47,609 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 19 [2022-11-03 01:50:47,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:50:47,636 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 16 treesize of output 10 [2022-11-03 01:50:47,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:50:47,651 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2022-11-03 01:50:47,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:50:47,693 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2022-11-03 01:50:47,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:50:47,705 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 16 treesize of output 10 [2022-11-03 01:50:47,791 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:50:47,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:50:47,842 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 242 treesize of output 219 [2022-11-03 01:50:47,877 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:50:47,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:50:47,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:50:47,884 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:50:47,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:50:47,910 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 227 treesize of output 210 [2022-11-03 01:50:47,932 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:50:47,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:50:47,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:50:47,940 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:50:47,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:50:47,955 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 231 treesize of output 115 [2022-11-03 01:50:47,974 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 25 [2022-11-03 01:50:47,987 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 25 [2022-11-03 01:50:48,042 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-03 01:50:48,052 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-11-03 01:50:48,063 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 7 treesize of output 3 [2022-11-03 01:50:48,075 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 5 treesize of output 3 [2022-11-03 01:50:48,087 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-11-03 01:50:48,133 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 5 treesize of output 3 [2022-11-03 01:50:48,142 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 5 treesize of output 3 [2022-11-03 01:50:48,157 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-11-03 01:50:48,170 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-11-03 01:50:48,181 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 7 treesize of output 3 [2022-11-03 01:50:48,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:50:48,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:50:48,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:50:48,257 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 141 treesize of output 147 [2022-11-03 01:50:48,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:50:48,284 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:50:48,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:50:48,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:50:48,289 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 143 treesize of output 160 [2022-11-03 01:50:48,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:50:48,316 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-03 01:50:48,369 INFO L356 Elim1Store]: treesize reduction 23, result has 4.2 percent of original size [2022-11-03 01:50:48,370 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 52 treesize of output 23 [2022-11-03 01:50:48,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:50:48,383 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 23 treesize of output 17 [2022-11-03 01:50:48,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:50:48,405 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 57 treesize of output 11 [2022-11-03 01:50:48,523 INFO L356 Elim1Store]: treesize reduction 37, result has 35.1 percent of original size [2022-11-03 01:50:48,524 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 3 case distinctions, treesize of input 138 treesize of output 92 [2022-11-03 01:50:48,538 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 11 treesize of output 3 [2022-11-03 01:50:48,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:50:48,568 INFO L356 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2022-11-03 01:50:48,569 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 4 new quantified variables, introduced 2 case distinctions, treesize of input 326 treesize of output 305 [2022-11-03 01:50:48,875 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 7 treesize of output 3 [2022-11-03 01:50:48,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:50:48,894 INFO L356 Elim1Store]: treesize reduction 38, result has 2.6 percent of original size [2022-11-03 01:50:48,894 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 185 treesize of output 132 [2022-11-03 01:50:48,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:50:48,914 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 01:50:48,914 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 1 case distinctions, treesize of input 108 treesize of output 77 [2022-11-03 01:50:48,933 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 15 treesize of output 7 [2022-11-03 01:50:48,945 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 01:50:49,338 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 01:50:49,339 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 1605 treesize of output 1650 [2022-11-03 01:50:49,381 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 1231 treesize of output 1057 [2022-11-03 01:50:49,833 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 777 treesize of output 609 [2022-11-03 01:50:49,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:50:49,850 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 643 treesize of output 545 [2022-11-03 01:50:49,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:50:49,878 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 615 treesize of output 525 [2022-11-03 01:50:49,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:50:49,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:50:49,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:50:49,933 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 448 treesize of output 364 [2022-11-03 01:50:49,953 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 01:50:49,955 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 01:50:49,966 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 21 [2022-11-03 01:50:49,970 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 01:50:49,991 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 01:50:49,994 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 01:50:50,004 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 01:50:50,014 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 01:50:50,023 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 7 treesize of output 3 [2022-11-03 01:50:50,038 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 01:50:50,039 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 01:50:50,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:50:50,098 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:50:50,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:50:50,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:50:50,103 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 141 treesize of output 147 [2022-11-03 01:50:50,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:50:50,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:50:50,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:50:50,137 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 131 treesize of output 137 [2022-11-03 01:50:50,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:50:50,168 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 22 treesize of output 7 [2022-11-03 01:50:50,228 INFO L356 Elim1Store]: treesize reduction 23, result has 4.2 percent of original size [2022-11-03 01:50:50,229 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 52 treesize of output 23 [2022-11-03 01:50:50,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:50:50,242 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 23 treesize of output 17 [2022-11-03 01:50:50,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:50:50,263 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 11 [2022-11-03 01:50:50,359 INFO L356 Elim1Store]: treesize reduction 23, result has 4.2 percent of original size [2022-11-03 01:50:50,359 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 190 treesize of output 149 [2022-11-03 01:50:50,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:50:50,369 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 149 treesize of output 119 [2022-11-03 01:50:50,479 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 7 treesize of output 3 [2022-11-03 01:50:50,518 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 7 treesize of output 3 [2022-11-03 01:50:50,577 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 7 treesize of output 3 [2022-11-03 01:50:50,597 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 7 treesize of output 3 [2022-11-03 01:50:50,841 INFO L356 Elim1Store]: treesize reduction 27, result has 41.3 percent of original size [2022-11-03 01:50:50,842 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 19 [2022-11-03 01:50:50,868 INFO L356 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2022-11-03 01:50:50,868 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 19 [2022-11-03 01:50:50,906 INFO L356 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2022-11-03 01:50:50,907 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 1 case distinctions, treesize of input 33 treesize of output 29 [2022-11-03 01:50:51,029 INFO L197 IcfgInterpreter]: Interpreting procedure node_create with input of size 43 for LOIs [2022-11-03 01:50:51,126 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 01:50:58,001 WARN L234 SmtUtils]: Spent 5.24s on a formula simplification. DAG size of input: 86 DAG size of output: 72 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 01:51:01,444 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2657#(and (<= 1 |ULTIMATE.start_dll_create_~data#1|) (<= 0 |ULTIMATE.start_dll_append_#in~head#1.base|) (<= 2 |ULTIMATE.start_dll_create_#in~len#1|) (<= |ULTIMATE.start_dll_append_~data#1| 1) (<= |ULTIMATE.start_dll_create_#res#1.offset| 0) (= |ULTIMATE.start_main_~ptr~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0#1.base|) |ULTIMATE.start_main_~#s~0#1.offset|)) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0#1.base|) |ULTIMATE.start_main_~#s~0#1.offset|) |ULTIMATE.start_main_~ptr~0#1.offset|) (<= |ULTIMATE.start_dll_append_~head#1.offset| 0) (or (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_dll_append_~last~0#1.base|) (+ |ULTIMATE.start_dll_append_~last~0#1.offset| 4)) |ULTIMATE.start_dll_append_~new_last~0#1.offset|) (and (= |ULTIMATE.start_dll_append_~last~0#1.offset| (+ |ULTIMATE.start_dll_append_~new_last~0#1.offset| 4)) (= |ULTIMATE.start_dll_append_~last~0#1.base| |ULTIMATE.start_dll_append_~new_last~0#1.base|))) (or (not (= |ULTIMATE.start_main_~ptr~0#1.base| 0)) (not (= |ULTIMATE.start_main_~ptr~0#1.offset| 0))) (<= 0 |ULTIMATE.start_dll_append_#in~head#1.offset|) (= |ULTIMATE.start_dll_append_~new_last~0#1.offset| 0) (<= |ULTIMATE.start_dll_create_~data#1| 1) (= |ULTIMATE.start_main_~count~0#1| 0) (not (= |ULTIMATE.start_main_~data~0#1| (select (select |#memory_int| |ULTIMATE.start_main_~ptr~0#1.base|) |ULTIMATE.start_main_~ptr~0#1.offset|))) (= |ULTIMATE.start_main_~data~0#1| 1) (<= 1 |ULTIMATE.start_dll_append_#in~data#1|) (<= |ULTIMATE.start_dll_create_#in~len#1| 2) (= |ULTIMATE.start_main_~#s~0#1.offset| 0) (<= |ULTIMATE.start_dll_create_~len#1| 0) (<= 1 |ULTIMATE.start_dll_create_#in~data#1|) (= |ULTIMATE.start_main_~len~0#1| 2) (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_dll_append_~new_last~0#1.base|) (+ |ULTIMATE.start_dll_append_~new_last~0#1.offset| 8)) |ULTIMATE.start_dll_append_~last~0#1.base|) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_dll_append_~head#1.offset|) (<= 0 |ULTIMATE.start_main_~#s~0#1.base|) (<= |ULTIMATE.start_dll_create_#in~data#1| 1) (<= |ULTIMATE.start_dll_append_#in~head#1.offset| 0) (<= |ULTIMATE.start_dll_create_~head~0#1.offset| 0) (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_dll_append_~last~0#1.base|) (+ |ULTIMATE.start_dll_append_~last~0#1.offset| 4)) |ULTIMATE.start_dll_append_~new_last~0#1.base|) (<= 1 |ULTIMATE.start_dll_append_~data#1|) (<= 0 |ULTIMATE.start_dll_create_~head~0#1.offset|) (= |ULTIMATE.start_dll_append_~last~0#1.offset| (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_dll_append_~new_last~0#1.base|) (+ |ULTIMATE.start_dll_append_~new_last~0#1.offset| 8))) (<= 0 |ULTIMATE.start_dll_append_~head#1.base|) (<= |ULTIMATE.start_dll_append_#in~data#1| 1) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_dll_create_#res#1.offset|) (= |#NULL.base| 0))' at error location [2022-11-03 01:51:01,444 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 01:51:01,444 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-03 01:51:01,444 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 26] total 44 [2022-11-03 01:51:01,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299444768] [2022-11-03 01:51:01,445 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-03 01:51:01,445 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2022-11-03 01:51:01,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:51:01,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2022-11-03 01:51:01,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=245, Invalid=4156, Unknown=29, NotChecked=262, Total=4692 [2022-11-03 01:51:01,448 INFO L87 Difference]: Start difference. First operand 50 states and 61 transitions. Second operand has 44 states, 36 states have (on average 1.3611111111111112) internal successors, (49), 34 states have internal predecessors, (49), 6 states have call successors, (6), 5 states have call predecessors, (6), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-03 01:51:04,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:51:04,778 INFO L93 Difference]: Finished difference Result 66 states and 80 transitions. [2022-11-03 01:51:04,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-03 01:51:04,779 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 36 states have (on average 1.3611111111111112) internal successors, (49), 34 states have internal predecessors, (49), 6 states have call successors, (6), 5 states have call predecessors, (6), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Word has length 31 [2022-11-03 01:51:04,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:51:04,779 INFO L225 Difference]: With dead ends: 66 [2022-11-03 01:51:04,780 INFO L226 Difference]: Without dead ends: 54 [2022-11-03 01:51:04,782 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 78 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 1587 ImplicationChecksByTransitivity, 16.8s TimeCoverageRelationStatistics Valid=347, Invalid=5637, Unknown=30, NotChecked=306, Total=6320 [2022-11-03 01:51:04,783 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 9 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 625 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 666 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 625 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 14 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-03 01:51:04,784 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 214 Invalid, 666 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 625 Invalid, 0 Unknown, 14 Unchecked, 1.6s Time] [2022-11-03 01:51:04,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2022-11-03 01:51:04,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2022-11-03 01:51:04,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 45 states have (on average 1.1555555555555554) internal successors, (52), 46 states have internal predecessors, (52), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-03 01:51:04,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 64 transitions. [2022-11-03 01:51:04,819 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 64 transitions. Word has length 31 [2022-11-03 01:51:04,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:51:04,820 INFO L495 AbstractCegarLoop]: Abstraction has 54 states and 64 transitions. [2022-11-03 01:51:04,820 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 36 states have (on average 1.3611111111111112) internal successors, (49), 34 states have internal predecessors, (49), 6 states have call successors, (6), 5 states have call predecessors, (6), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-03 01:51:04,820 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 64 transitions. [2022-11-03 01:51:04,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-03 01:51:04,821 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:51:04,821 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:51:04,852 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84f73a98-6ba7-47ba-9041-43c9024ecefb/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-03 01:51:05,026 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84f73a98-6ba7-47ba-9041-43c9024ecefb/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-11-03 01:51:05,027 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:51:05,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:51:05,027 INFO L85 PathProgramCache]: Analyzing trace with hash -1574653178, now seen corresponding path program 1 times [2022-11-03 01:51:05,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:51:05,027 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1381707470] [2022-11-03 01:51:05,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:51:05,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:51:05,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:51:08,337 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 01:51:08,338 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:51:08,338 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1381707470] [2022-11-03 01:51:08,338 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1381707470] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 01:51:08,338 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1640691992] [2022-11-03 01:51:08,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:51:08,338 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:51:08,338 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84f73a98-6ba7-47ba-9041-43c9024ecefb/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:51:08,340 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84f73a98-6ba7-47ba-9041-43c9024ecefb/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 01:51:08,342 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84f73a98-6ba7-47ba-9041-43c9024ecefb/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-03 01:51:09,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:51:09,430 INFO L263 TraceCheckSpWp]: Trace formula consists of 457 conjuncts, 146 conjunts are in the unsatisfiable core [2022-11-03 01:51:09,436 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:51:09,443 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 01:51:09,505 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 5 treesize of output 3 [2022-11-03 01:51:09,651 INFO L356 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-03 01:51:09,652 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 17 treesize of output 21 [2022-11-03 01:51:09,828 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-03 01:51:09,895 INFO L356 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-03 01:51:09,895 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 4 case distinctions, treesize of input 22 treesize of output 33 [2022-11-03 01:51:10,039 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 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 14 treesize of output 14 [2022-11-03 01:51:10,045 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 14 [2022-11-03 01:51:10,060 INFO L356 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-03 01:51:10,061 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 54 treesize of output 49 [2022-11-03 01:51:10,067 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-11-03 01:51:10,367 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 01:51:10,368 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 1 case distinctions, treesize of input 90 treesize of output 41 [2022-11-03 01:51:10,376 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-03 01:51:10,383 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 16 treesize of output 10 [2022-11-03 01:51:10,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:51:10,570 INFO L356 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-11-03 01:51:10,571 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 96 treesize of output 76 [2022-11-03 01:51:10,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:51:10,600 INFO L356 Elim1Store]: treesize reduction 8, result has 72.4 percent of original size [2022-11-03 01:51:10,601 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 33 treesize of output 33 [2022-11-03 01:51:10,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:51:10,624 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 30 [2022-11-03 01:51:11,669 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:51:11,708 INFO L356 Elim1Store]: treesize reduction 139, result has 14.7 percent of original size [2022-11-03 01:51:11,709 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 8 new quantified variables, introduced 9 case distinctions, treesize of input 225 treesize of output 118 [2022-11-03 01:51:11,757 INFO L356 Elim1Store]: treesize reduction 66, result has 19.5 percent of original size [2022-11-03 01:51:11,757 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 367 treesize of output 252 [2022-11-03 01:51:11,806 INFO L356 Elim1Store]: treesize reduction 112, result has 16.4 percent of original size [2022-11-03 01:51:11,806 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 7 new quantified variables, introduced 4 case distinctions, treesize of input 318 treesize of output 203 [2022-11-03 01:51:11,833 INFO L356 Elim1Store]: treesize reduction 40, result has 27.3 percent of original size [2022-11-03 01:51:11,834 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 2 case distinctions, treesize of input 272 treesize of output 222 [2022-11-03 01:51:12,216 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 266 treesize of output 151 [2022-11-03 01:51:12,398 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-03 01:51:12,399 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 133 treesize of output 47 [2022-11-03 01:51:12,404 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 7 proven. 10 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-03 01:51:12,405 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 01:51:14,167 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1640691992] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 01:51:14,167 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1643161032] [2022-11-03 01:51:14,169 INFO L159 IcfgInterpreter]: Started Sifa with 19 locations of interest [2022-11-03 01:51:14,169 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 01:51:14,170 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 01:51:14,170 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 01:51:14,170 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 01:51:14,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:51:14,213 INFO L356 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-03 01:51:14,213 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 27 treesize of output 37 [2022-11-03 01:51:14,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:51:14,223 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 01:51:14,252 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 01:51:14,256 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 01:51:14,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:51:14,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:51:14,266 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 19 [2022-11-03 01:51:14,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:51:14,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:51:14,282 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2022-11-03 01:51:14,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:51:14,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:51:14,292 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 19 [2022-11-03 01:51:14,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:51:14,314 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 16 treesize of output 10 [2022-11-03 01:51:14,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:51:14,329 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2022-11-03 01:51:14,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:51:14,367 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 16 treesize of output 10 [2022-11-03 01:51:14,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:51:14,378 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2022-11-03 01:51:14,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:51:14,414 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 30 treesize of output 11 [2022-11-03 01:51:14,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:51:14,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:51:14,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:51:14,433 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:51:14,434 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 31 treesize of output 30 [2022-11-03 01:51:14,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:51:14,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:51:14,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:51:14,459 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:51:14,460 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 31 treesize of output 30 [2022-11-03 01:51:14,518 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 7 treesize of output 3 [2022-11-03 01:51:14,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:51:14,531 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2022-11-03 01:51:14,541 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 5 treesize of output 3 [2022-11-03 01:51:14,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:51:14,556 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2022-11-03 01:51:14,568 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 5 treesize of output 3 [2022-11-03 01:51:14,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:51:14,611 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2022-11-03 01:51:14,622 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 7 treesize of output 3 [2022-11-03 01:51:14,633 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 5 treesize of output 3 [2022-11-03 01:51:14,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:51:14,647 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2022-11-03 01:51:14,661 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 5 treesize of output 3 [2022-11-03 01:51:14,746 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:51:14,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:51:14,776 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 253 treesize of output 230 [2022-11-03 01:51:14,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:51:14,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:51:14,833 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 238 treesize of output 221 [2022-11-03 01:51:14,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:51:14,866 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:51:14,867 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:51:14,868 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:51:14,904 INFO L356 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-11-03 01:51:14,905 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 355 treesize of output 353 [2022-11-03 01:51:14,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:51:14,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:51:14,936 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 242 treesize of output 225 [2022-11-03 01:51:14,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:51:14,956 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:51:14,958 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:51:14,984 INFO L356 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-03 01:51:14,985 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 349 treesize of output 356 [2022-11-03 01:51:15,054 INFO L356 Elim1Store]: treesize reduction 23, result has 4.2 percent of original size [2022-11-03 01:51:15,054 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 52 treesize of output 23 [2022-11-03 01:51:15,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:51:15,071 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 23 treesize of output 17 [2022-11-03 01:51:15,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:51:15,103 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 57 treesize of output 11 [2022-11-03 01:51:15,211 INFO L356 Elim1Store]: treesize reduction 35, result has 2.8 percent of original size [2022-11-03 01:51:15,212 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 241 treesize of output 188 [2022-11-03 01:51:15,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:51:15,225 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 181 treesize of output 139 [2022-11-03 01:51:15,238 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 19 treesize of output 3 [2022-11-03 01:51:15,635 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 7 treesize of output 3 [2022-11-03 01:51:15,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:51:15,660 INFO L356 Elim1Store]: treesize reduction 38, result has 2.6 percent of original size [2022-11-03 01:51:15,660 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 373 treesize of output 316 [2022-11-03 01:51:15,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:51:15,682 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:51:15,690 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 01:51:15,691 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 296 treesize of output 225 [2022-11-03 01:51:15,713 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 196 treesize of output 192 [2022-11-03 01:51:15,727 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 192 treesize of output 188 [2022-11-03 01:51:15,753 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 01:51:15,768 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 01:51:15,782 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 7 treesize of output 3 [2022-11-03 01:51:15,792 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 5 treesize of output 3 [2022-11-03 01:51:15,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:51:15,804 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2022-11-03 01:51:15,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:51:15,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:51:15,818 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 36 [2022-11-03 01:51:15,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:51:15,831 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 24 treesize of output 14 [2022-11-03 01:51:15,842 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 5 treesize of output 3 [2022-11-03 01:51:15,854 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 5 treesize of output 3 [2022-11-03 01:51:16,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:51:16,078 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:51:16,087 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 01:51:16,088 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 351 treesize of output 266 [2022-11-03 01:51:16,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:51:16,121 INFO L356 Elim1Store]: treesize reduction 26, result has 3.7 percent of original size [2022-11-03 01:51:16,121 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 265 treesize of output 220 [2022-11-03 01:51:16,140 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 196 treesize of output 192 [2022-11-03 01:51:16,154 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 192 treesize of output 188 [2022-11-03 01:51:16,175 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 01:51:16,195 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 01:51:16,197 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 01:51:16,210 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 5 treesize of output 3 [2022-11-03 01:51:16,222 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 5 treesize of output 3 [2022-11-03 01:51:16,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:51:16,236 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2022-11-03 01:51:16,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:51:16,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:51:16,252 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 36 [2022-11-03 01:51:16,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:51:16,266 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 24 treesize of output 14 [2022-11-03 01:51:16,278 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 5 treesize of output 3 [2022-11-03 01:51:16,289 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 7 treesize of output 3 [2022-11-03 01:51:16,391 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:51:16,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:51:16,434 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 253 treesize of output 230 [2022-11-03 01:51:16,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:51:16,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:51:16,494 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 238 treesize of output 221 [2022-11-03 01:51:16,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:51:16,512 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:51:16,513 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:51:16,514 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:51:16,553 INFO L356 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-11-03 01:51:16,553 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 355 treesize of output 353 [2022-11-03 01:51:16,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:51:16,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:51:16,587 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 242 treesize of output 225 [2022-11-03 01:51:16,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:51:16,609 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:51:16,610 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:51:16,639 INFO L356 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-03 01:51:16,639 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 349 treesize of output 351 [2022-11-03 01:51:16,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:51:16,725 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 57 treesize of output 11 [2022-11-03 01:51:16,824 INFO L356 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2022-11-03 01:51:16,825 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 2 case distinctions, treesize of input 362 treesize of output 329 [2022-11-03 01:51:16,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:51:16,841 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 311 treesize of output 265 [2022-11-03 01:51:16,913 INFO L356 Elim1Store]: treesize reduction 23, result has 4.2 percent of original size [2022-11-03 01:51:16,914 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 365 treesize of output 318 [2022-11-03 01:51:16,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:51:16,930 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 318 treesize of output 280 [2022-11-03 01:51:17,114 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 7 treesize of output 3 [2022-11-03 01:51:17,139 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 7 treesize of output 3 [2022-11-03 01:51:17,191 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 7 treesize of output 3 [2022-11-03 01:51:17,209 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 7 treesize of output 3 [2022-11-03 01:51:17,451 INFO L356 Elim1Store]: treesize reduction 27, result has 41.3 percent of original size [2022-11-03 01:51:17,452 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 19 [2022-11-03 01:51:17,472 INFO L356 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2022-11-03 01:51:17,472 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 1 case distinctions, treesize of input 33 treesize of output 19 [2022-11-03 01:51:17,506 INFO L356 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2022-11-03 01:51:17,507 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 1 case distinctions, treesize of input 33 treesize of output 29 [2022-11-03 01:51:17,667 INFO L197 IcfgInterpreter]: Interpreting procedure node_create with input of size 43 for LOIs [2022-11-03 01:51:17,754 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 01:51:28,046 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '3062#(and (<= 0 |ULTIMATE.start_main_~count~0#1|) (<= 1 |ULTIMATE.start_dll_create_~data#1|) (<= 0 |ULTIMATE.start_dll_append_#in~head#1.base|) (<= 2 |ULTIMATE.start_dll_create_#in~len#1|) (not (= |ULTIMATE.start_main_~count~0#1| (+ |ULTIMATE.start_main_~len~0#1| 1))) (<= |ULTIMATE.start_dll_append_~data#1| 1) (<= |ULTIMATE.start_dll_create_#res#1.offset| 0) (<= |ULTIMATE.start_dll_append_~head#1.offset| 0) (<= 0 |ULTIMATE.start_dll_append_#in~head#1.offset|) (= |ULTIMATE.start_dll_append_~new_last~0#1.offset| 0) (= |ULTIMATE.start_main_~ptr~0#1.offset| 0) (<= |ULTIMATE.start_dll_create_~data#1| 1) (= |ULTIMATE.start_main_~ptr~0#1.base| 0) (= |ULTIMATE.start_main_~data~0#1| 1) (<= 0 |ULTIMATE.start_dll_create_~len#1|) (<= 1 |ULTIMATE.start_dll_append_#in~data#1|) (<= |ULTIMATE.start_dll_create_#in~len#1| 2) (= |ULTIMATE.start_main_~#s~0#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) (<= 0 |ULTIMATE.start_dll_append_~head#1.offset|) (<= 0 |ULTIMATE.start_main_~#s~0#1.base|) (<= |ULTIMATE.start_dll_create_#in~data#1| 1) (<= |ULTIMATE.start_dll_append_#in~head#1.offset| 0) (<= |ULTIMATE.start_dll_create_~head~0#1.offset| 0) (<= 1 |ULTIMATE.start_dll_append_~data#1|) (<= 0 |ULTIMATE.start_dll_create_~head~0#1.offset|) (<= 0 |ULTIMATE.start_dll_append_~head#1.base|) (<= |ULTIMATE.start_dll_append_#in~data#1| 1) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_dll_create_#res#1.offset|) (= |#NULL.base| 0))' at error location [2022-11-03 01:51:28,046 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 01:51:28,046 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-03 01:51:28,046 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 23] total 42 [2022-11-03 01:51:28,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901860623] [2022-11-03 01:51:28,047 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-03 01:51:28,047 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2022-11-03 01:51:28,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:51:28,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2022-11-03 01:51:28,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=245, Invalid=4173, Unknown=4, NotChecked=0, Total=4422 [2022-11-03 01:51:28,050 INFO L87 Difference]: Start difference. First operand 54 states and 64 transitions. Second operand has 42 states, 35 states have (on average 1.3714285714285714) internal successors, (48), 33 states have internal predecessors, (48), 6 states have call successors, (6), 3 states have call predecessors, (6), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-03 01:51:30,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:51:30,133 INFO L93 Difference]: Finished difference Result 62 states and 72 transitions. [2022-11-03 01:51:30,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-11-03 01:51:30,134 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 35 states have (on average 1.3714285714285714) internal successors, (48), 33 states have internal predecessors, (48), 6 states have call successors, (6), 3 states have call predecessors, (6), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Word has length 33 [2022-11-03 01:51:30,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:51:30,135 INFO L225 Difference]: With dead ends: 62 [2022-11-03 01:51:30,135 INFO L226 Difference]: Without dead ends: 59 [2022-11-03 01:51:30,137 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 39 SyntacticMatches, 1 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1487 ImplicationChecksByTransitivity, 15.6s TimeCoverageRelationStatistics Valid=356, Invalid=5340, Unknown=4, NotChecked=0, Total=5700 [2022-11-03 01:51:30,137 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 14 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 490 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 264 SdHoareTripleChecker+Invalid, 550 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 490 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 46 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-03 01:51:30,138 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 264 Invalid, 550 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 490 Invalid, 0 Unknown, 46 Unchecked, 0.8s Time] [2022-11-03 01:51:30,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2022-11-03 01:51:30,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 54. [2022-11-03 01:51:30,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 45 states have (on average 1.1555555555555554) internal successors, (52), 46 states have internal predecessors, (52), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-03 01:51:30,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 64 transitions. [2022-11-03 01:51:30,179 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 64 transitions. Word has length 33 [2022-11-03 01:51:30,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:51:30,179 INFO L495 AbstractCegarLoop]: Abstraction has 54 states and 64 transitions. [2022-11-03 01:51:30,179 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 35 states have (on average 1.3714285714285714) internal successors, (48), 33 states have internal predecessors, (48), 6 states have call successors, (6), 3 states have call predecessors, (6), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-03 01:51:30,179 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 64 transitions. [2022-11-03 01:51:30,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-03 01:51:30,180 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:51:30,181 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:51:30,211 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84f73a98-6ba7-47ba-9041-43c9024ecefb/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-11-03 01:51:30,382 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84f73a98-6ba7-47ba-9041-43c9024ecefb/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:51:30,383 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:51:30,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:51:30,383 INFO L85 PathProgramCache]: Analyzing trace with hash -1574709164, now seen corresponding path program 2 times [2022-11-03 01:51:30,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:51:30,383 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478734142] [2022-11-03 01:51:30,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:51:30,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:51:30,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:51:34,440 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 6 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 01:51:34,440 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:51:34,440 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1478734142] [2022-11-03 01:51:34,440 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1478734142] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 01:51:34,440 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [457039223] [2022-11-03 01:51:34,441 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-03 01:51:34,441 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:51:34,441 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84f73a98-6ba7-47ba-9041-43c9024ecefb/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:51:34,442 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84f73a98-6ba7-47ba-9041-43c9024ecefb/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 01:51:34,443 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84f73a98-6ba7-47ba-9041-43c9024ecefb/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-11-03 01:51:35,270 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-11-03 01:51:35,270 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-03 01:51:35,277 INFO L263 TraceCheckSpWp]: Trace formula consists of 456 conjuncts, 150 conjunts are in the unsatisfiable core [2022-11-03 01:51:35,284 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:51:35,364 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 01:51:35,644 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 5 treesize of output 3 [2022-11-03 01:51:35,716 WARN L833 $PredicateComparison]: unable to prove that (and (< |c_#StackHeapBarrier| |c_ULTIMATE.start_main_~#s~0#1.base|) (exists ((|v_#valid_BEFORE_CALL_210| (Array Int Int))) (and (= (select |v_#valid_BEFORE_CALL_210| |c_ULTIMATE.start_dll_create_~head~0#1.base|) 1) (= (select |v_#valid_BEFORE_CALL_210| |c_ULTIMATE.start_dll_create_#t~ret4#1.base|) 0) (= |c_#valid| (let ((.cse0 (@diff |v_#valid_BEFORE_CALL_210| |c_#valid|))) (store |v_#valid_BEFORE_CALL_210| .cse0 (select |c_#valid| .cse0)))))) (= |c_ULTIMATE.start_main_~#s~0#1.offset| 0) (= (select |c_#valid| |c_ULTIMATE.start_dll_create_#t~ret4#1.base|) 1) (= |c_ULTIMATE.start_dll_create_#t~ret4#1.offset| 0) (= |c_ULTIMATE.start_main_~data~0#1| 1) (not (= 0 |c_ULTIMATE.start_dll_create_~head~0#1.base|)) (< |c_ULTIMATE.start_dll_create_~head~0#1.base| |c_#StackHeapBarrier|)) is different from false [2022-11-03 01:51:35,719 WARN L855 $PredicateComparison]: unable to prove that (and (< |c_#StackHeapBarrier| |c_ULTIMATE.start_main_~#s~0#1.base|) (exists ((|v_#valid_BEFORE_CALL_210| (Array Int Int))) (and (= (select |v_#valid_BEFORE_CALL_210| |c_ULTIMATE.start_dll_create_~head~0#1.base|) 1) (= (select |v_#valid_BEFORE_CALL_210| |c_ULTIMATE.start_dll_create_#t~ret4#1.base|) 0) (= |c_#valid| (let ((.cse0 (@diff |v_#valid_BEFORE_CALL_210| |c_#valid|))) (store |v_#valid_BEFORE_CALL_210| .cse0 (select |c_#valid| .cse0)))))) (= |c_ULTIMATE.start_main_~#s~0#1.offset| 0) (= (select |c_#valid| |c_ULTIMATE.start_dll_create_#t~ret4#1.base|) 1) (= |c_ULTIMATE.start_dll_create_#t~ret4#1.offset| 0) (= |c_ULTIMATE.start_main_~data~0#1| 1) (not (= 0 |c_ULTIMATE.start_dll_create_~head~0#1.base|)) (< |c_ULTIMATE.start_dll_create_~head~0#1.base| |c_#StackHeapBarrier|)) is different from true [2022-11-03 01:51:35,740 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 14 [2022-11-03 01:51:35,748 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 0 case distinctions, treesize of input 14 treesize of output 14 [2022-11-03 01:51:35,766 INFO L356 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-03 01:51:35,767 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 45 treesize of output 42 [2022-11-03 01:51:35,795 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2022-11-03 01:51:35,808 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base|) 4))) (and (< |c_#StackHeapBarrier| |c_ULTIMATE.start_main_~#s~0#1.base|) (= |c_ULTIMATE.start_dll_create_~head~0#1.offset| 0) (< .cse0 |c_#StackHeapBarrier|) (= |c_ULTIMATE.start_main_~#s~0#1.offset| 0) (= |c_ULTIMATE.start_main_~data~0#1| 1) (not (= .cse0 0)) (= (select |c_#valid| |c_ULTIMATE.start_dll_create_~head~0#1.base|) 1) (exists ((|v_#valid_BEFORE_CALL_210| (Array Int Int))) (and (= (select |v_#valid_BEFORE_CALL_210| |c_ULTIMATE.start_dll_create_~head~0#1.base|) 0) (= (select |v_#valid_BEFORE_CALL_210| .cse0) 1) (= |c_#valid| (let ((.cse1 (@diff |v_#valid_BEFORE_CALL_210| |c_#valid|))) (store |v_#valid_BEFORE_CALL_210| .cse1 (select |c_#valid| .cse1)))))))) is different from false [2022-11-03 01:51:35,810 WARN L855 $PredicateComparison]: unable to prove that (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base|) 4))) (and (< |c_#StackHeapBarrier| |c_ULTIMATE.start_main_~#s~0#1.base|) (= |c_ULTIMATE.start_dll_create_~head~0#1.offset| 0) (< .cse0 |c_#StackHeapBarrier|) (= |c_ULTIMATE.start_main_~#s~0#1.offset| 0) (= |c_ULTIMATE.start_main_~data~0#1| 1) (not (= .cse0 0)) (= (select |c_#valid| |c_ULTIMATE.start_dll_create_~head~0#1.base|) 1) (exists ((|v_#valid_BEFORE_CALL_210| (Array Int Int))) (and (= (select |v_#valid_BEFORE_CALL_210| |c_ULTIMATE.start_dll_create_~head~0#1.base|) 0) (= (select |v_#valid_BEFORE_CALL_210| .cse0) 1) (= |c_#valid| (let ((.cse1 (@diff |v_#valid_BEFORE_CALL_210| |c_#valid|))) (store |v_#valid_BEFORE_CALL_210| .cse1 (select |c_#valid| .cse1)))))))) is different from true [2022-11-03 01:51:35,875 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (let ((.cse1 (select (select |c_#memory_$Pointer$.base| .cse0) 4))) (and (= |c_ULTIMATE.start_dll_append_~head#1.base| |c_ULTIMATE.start_main_~#s~0#1.base|) (< |c_#StackHeapBarrier| |c_ULTIMATE.start_main_~#s~0#1.base|) (= (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 0) (= |c_ULTIMATE.start_main_~data~0#1| |c_ULTIMATE.start_dll_append_~data#1|) (= |c_ULTIMATE.start_main_~#s~0#1.offset| 0) (= |c_ULTIMATE.start_dll_append_~head#1.offset| |c_ULTIMATE.start_main_~#s~0#1.offset|) (= |c_ULTIMATE.start_main_~data~0#1| 1) (exists ((|v_#valid_BEFORE_CALL_210| (Array Int Int))) (and (= (select |v_#valid_BEFORE_CALL_210| .cse0) 0) (= (select |v_#valid_BEFORE_CALL_210| .cse1) 1) (= |c_#valid| (let ((.cse2 (@diff |v_#valid_BEFORE_CALL_210| |c_#valid|))) (store |v_#valid_BEFORE_CALL_210| .cse2 (select |c_#valid| .cse2)))))) (< .cse1 |c_#StackHeapBarrier|) (= (select |c_#valid| .cse0) 1) (not (= .cse1 0))))) is different from false [2022-11-03 01:51:35,878 WARN L855 $PredicateComparison]: unable to prove that (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (let ((.cse1 (select (select |c_#memory_$Pointer$.base| .cse0) 4))) (and (= |c_ULTIMATE.start_dll_append_~head#1.base| |c_ULTIMATE.start_main_~#s~0#1.base|) (< |c_#StackHeapBarrier| |c_ULTIMATE.start_main_~#s~0#1.base|) (= (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 0) (= |c_ULTIMATE.start_main_~data~0#1| |c_ULTIMATE.start_dll_append_~data#1|) (= |c_ULTIMATE.start_main_~#s~0#1.offset| 0) (= |c_ULTIMATE.start_dll_append_~head#1.offset| |c_ULTIMATE.start_main_~#s~0#1.offset|) (= |c_ULTIMATE.start_main_~data~0#1| 1) (exists ((|v_#valid_BEFORE_CALL_210| (Array Int Int))) (and (= (select |v_#valid_BEFORE_CALL_210| .cse0) 0) (= (select |v_#valid_BEFORE_CALL_210| .cse1) 1) (= |c_#valid| (let ((.cse2 (@diff |v_#valid_BEFORE_CALL_210| |c_#valid|))) (store |v_#valid_BEFORE_CALL_210| .cse2 (select |c_#valid| .cse2)))))) (< .cse1 |c_#StackHeapBarrier|) (= (select |c_#valid| .cse0) 1) (not (= .cse1 0))))) is different from true [2022-11-03 01:51:35,896 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 01:51:35,896 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 1 case distinctions, treesize of input 55 treesize of output 26 [2022-11-03 01:51:35,900 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 7 treesize of output 3 [2022-11-03 01:51:35,928 WARN L833 $PredicateComparison]: unable to prove that (and (= |c_#memory_$Pointer$.base| |c_old(#memory_$Pointer$.base)|) (= |c_#valid| |c_old(#valid)|) (exists ((v_arrayElimIndex_97 Int) (v_arrayElimCell_1258 Int) (|v_#valid_BEFORE_CALL_211| (Array Int Int)) (|v_#valid_BEFORE_CALL_210| (Array Int Int))) (and (= (select |v_#valid_BEFORE_CALL_211| v_arrayElimIndex_97) 1) (= |v_#valid_BEFORE_CALL_211| (let ((.cse0 (@diff |v_#valid_BEFORE_CALL_210| |v_#valid_BEFORE_CALL_211|))) (store |v_#valid_BEFORE_CALL_210| .cse0 (select |v_#valid_BEFORE_CALL_211| .cse0)))) (= (select |v_#valid_BEFORE_CALL_210| v_arrayElimIndex_97) 0) (< v_arrayElimCell_1258 |c_#StackHeapBarrier|) (not (= v_arrayElimCell_1258 0)) (= (select |v_#valid_BEFORE_CALL_210| v_arrayElimCell_1258) 1))) (= |c_#memory_$Pointer$.offset| |c_old(#memory_$Pointer$.offset)|)) is different from false [2022-11-03 01:51:35,932 WARN L855 $PredicateComparison]: unable to prove that (and (= |c_#memory_$Pointer$.base| |c_old(#memory_$Pointer$.base)|) (= |c_#valid| |c_old(#valid)|) (exists ((v_arrayElimIndex_97 Int) (v_arrayElimCell_1258 Int) (|v_#valid_BEFORE_CALL_211| (Array Int Int)) (|v_#valid_BEFORE_CALL_210| (Array Int Int))) (and (= (select |v_#valid_BEFORE_CALL_211| v_arrayElimIndex_97) 1) (= |v_#valid_BEFORE_CALL_211| (let ((.cse0 (@diff |v_#valid_BEFORE_CALL_210| |v_#valid_BEFORE_CALL_211|))) (store |v_#valid_BEFORE_CALL_210| .cse0 (select |v_#valid_BEFORE_CALL_211| .cse0)))) (= (select |v_#valid_BEFORE_CALL_210| v_arrayElimIndex_97) 0) (< v_arrayElimCell_1258 |c_#StackHeapBarrier|) (not (= v_arrayElimCell_1258 0)) (= (select |v_#valid_BEFORE_CALL_210| v_arrayElimCell_1258) 1))) (= |c_#memory_$Pointer$.offset| |c_old(#memory_$Pointer$.offset)|)) is different from true [2022-11-03 01:51:35,981 WARN L833 $PredicateComparison]: unable to prove that (and (< |c_node_create_~temp~0#1.base| |c_#StackHeapBarrier|) (= |c_#memory_$Pointer$.base| |c_old(#memory_$Pointer$.base)|) (= |c_node_create_#in~data#1| |c_node_create_~data#1|) (= |c_node_create_~temp~0#1.offset| 0) (exists ((v_arrayElimIndex_97 Int) (v_arrayElimCell_1258 Int) (|v_#valid_BEFORE_CALL_211| (Array Int Int)) (|v_#valid_BEFORE_CALL_210| (Array Int Int))) (and (= (select |v_#valid_BEFORE_CALL_211| v_arrayElimIndex_97) 1) (= |v_#valid_BEFORE_CALL_211| (let ((.cse0 (@diff |v_#valid_BEFORE_CALL_210| |v_#valid_BEFORE_CALL_211|))) (store |v_#valid_BEFORE_CALL_210| .cse0 (select |v_#valid_BEFORE_CALL_211| .cse0)))) (= (select |v_#valid_BEFORE_CALL_210| v_arrayElimIndex_97) 0) (< v_arrayElimCell_1258 |c_#StackHeapBarrier|) (not (= v_arrayElimCell_1258 0)) (= (select |v_#valid_BEFORE_CALL_210| v_arrayElimCell_1258) 1))) (= |c_#memory_$Pointer$.offset| |c_old(#memory_$Pointer$.offset)|) (= (select |c_old(#valid)| |c_node_create_~temp~0#1.base|) 0)) is different from false [2022-11-03 01:51:35,983 WARN L855 $PredicateComparison]: unable to prove that (and (< |c_node_create_~temp~0#1.base| |c_#StackHeapBarrier|) (= |c_#memory_$Pointer$.base| |c_old(#memory_$Pointer$.base)|) (= |c_node_create_#in~data#1| |c_node_create_~data#1|) (= |c_node_create_~temp~0#1.offset| 0) (exists ((v_arrayElimIndex_97 Int) (v_arrayElimCell_1258 Int) (|v_#valid_BEFORE_CALL_211| (Array Int Int)) (|v_#valid_BEFORE_CALL_210| (Array Int Int))) (and (= (select |v_#valid_BEFORE_CALL_211| v_arrayElimIndex_97) 1) (= |v_#valid_BEFORE_CALL_211| (let ((.cse0 (@diff |v_#valid_BEFORE_CALL_210| |v_#valid_BEFORE_CALL_211|))) (store |v_#valid_BEFORE_CALL_210| .cse0 (select |v_#valid_BEFORE_CALL_211| .cse0)))) (= (select |v_#valid_BEFORE_CALL_210| v_arrayElimIndex_97) 0) (< v_arrayElimCell_1258 |c_#StackHeapBarrier|) (not (= v_arrayElimCell_1258 0)) (= (select |v_#valid_BEFORE_CALL_210| v_arrayElimCell_1258) 1))) (= |c_#memory_$Pointer$.offset| |c_old(#memory_$Pointer$.offset)|) (= (select |c_old(#valid)| |c_node_create_~temp~0#1.base|) 0)) is different from true [2022-11-03 01:51:36,038 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 01:51:36,052 WARN L833 $PredicateComparison]: unable to prove that (and (= |c_node_create_#res#1.offset| 0) (< |c_node_create_#res#1.base| |c_#StackHeapBarrier|) (= (select |c_old(#valid)| |c_node_create_#res#1.base|) 0) (= (select (select |c_#memory_int| |c_node_create_#res#1.base|) |c_node_create_#res#1.offset|) |c_node_create_#in~data#1|) (exists ((v_arrayElimIndex_97 Int) (v_arrayElimCell_1258 Int) (|v_#valid_BEFORE_CALL_211| (Array Int Int)) (|v_#valid_BEFORE_CALL_210| (Array Int Int))) (and (= (select |v_#valid_BEFORE_CALL_211| v_arrayElimIndex_97) 1) (= |v_#valid_BEFORE_CALL_211| (let ((.cse0 (@diff |v_#valid_BEFORE_CALL_210| |v_#valid_BEFORE_CALL_211|))) (store |v_#valid_BEFORE_CALL_210| .cse0 (select |v_#valid_BEFORE_CALL_211| .cse0)))) (= (select |v_#valid_BEFORE_CALL_210| v_arrayElimIndex_97) 0) (< v_arrayElimCell_1258 |c_#StackHeapBarrier|) (not (= v_arrayElimCell_1258 0)) (= (select |v_#valid_BEFORE_CALL_210| v_arrayElimCell_1258) 1))) (exists ((v_ArrVal_2869 (Array Int Int))) (= (store |c_old(#memory_$Pointer$.offset)| |c_node_create_#res#1.base| v_ArrVal_2869) |c_#memory_$Pointer$.offset|)) (exists ((v_ArrVal_2867 (Array Int Int))) (= (store |c_old(#memory_$Pointer$.base)| |c_node_create_#res#1.base| v_ArrVal_2867) |c_#memory_$Pointer$.base|))) is different from false [2022-11-03 01:51:36,055 WARN L855 $PredicateComparison]: unable to prove that (and (= |c_node_create_#res#1.offset| 0) (< |c_node_create_#res#1.base| |c_#StackHeapBarrier|) (= (select |c_old(#valid)| |c_node_create_#res#1.base|) 0) (= (select (select |c_#memory_int| |c_node_create_#res#1.base|) |c_node_create_#res#1.offset|) |c_node_create_#in~data#1|) (exists ((v_arrayElimIndex_97 Int) (v_arrayElimCell_1258 Int) (|v_#valid_BEFORE_CALL_211| (Array Int Int)) (|v_#valid_BEFORE_CALL_210| (Array Int Int))) (and (= (select |v_#valid_BEFORE_CALL_211| v_arrayElimIndex_97) 1) (= |v_#valid_BEFORE_CALL_211| (let ((.cse0 (@diff |v_#valid_BEFORE_CALL_210| |v_#valid_BEFORE_CALL_211|))) (store |v_#valid_BEFORE_CALL_210| .cse0 (select |v_#valid_BEFORE_CALL_211| .cse0)))) (= (select |v_#valid_BEFORE_CALL_210| v_arrayElimIndex_97) 0) (< v_arrayElimCell_1258 |c_#StackHeapBarrier|) (not (= v_arrayElimCell_1258 0)) (= (select |v_#valid_BEFORE_CALL_210| v_arrayElimCell_1258) 1))) (exists ((v_ArrVal_2869 (Array Int Int))) (= (store |c_old(#memory_$Pointer$.offset)| |c_node_create_#res#1.base| v_ArrVal_2869) |c_#memory_$Pointer$.offset|)) (exists ((v_ArrVal_2867 (Array Int Int))) (= (store |c_old(#memory_$Pointer$.base)| |c_node_create_#res#1.base| v_ArrVal_2867) |c_#memory_$Pointer$.base|))) is different from true [2022-11-03 01:51:36,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:51:36,091 INFO L356 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-11-03 01:51:36,091 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 63 treesize of output 55 [2022-11-03 01:51:36,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:51:36,129 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 01:51:36,191 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (let ((.cse1 (select (select |c_#memory_$Pointer$.base| .cse0) 4))) (and (= |c_ULTIMATE.start_dll_append_~head#1.base| |c_ULTIMATE.start_main_~#s~0#1.base|) (exists ((|v_old(#valid)_AFTER_CALL_114| (Array Int Int)) (|v_#valid_BEFORE_CALL_210| (Array Int Int))) (and (= (select |v_#valid_BEFORE_CALL_210| .cse0) 0) (= (select |v_old(#valid)_AFTER_CALL_114| .cse0) 1) (= (select |v_#valid_BEFORE_CALL_210| .cse1) 1) (= |v_old(#valid)_AFTER_CALL_114| (let ((.cse2 (@diff |v_#valid_BEFORE_CALL_210| |v_old(#valid)_AFTER_CALL_114|))) (store |v_#valid_BEFORE_CALL_210| .cse2 (select |v_old(#valid)_AFTER_CALL_114| .cse2)))) (= (select |v_old(#valid)_AFTER_CALL_114| |c_ULTIMATE.start_dll_append_#t~ret7#1.base|) 0))) (= (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 0) (= |c_ULTIMATE.start_main_~data~0#1| (select (select |c_#memory_int| |c_ULTIMATE.start_dll_append_#t~ret7#1.base|) 0)) (= |c_ULTIMATE.start_main_~#s~0#1.offset| 0) (= |c_ULTIMATE.start_dll_append_~head#1.offset| |c_ULTIMATE.start_main_~#s~0#1.offset|) (= |c_ULTIMATE.start_dll_append_#t~ret7#1.offset| 0) (<= (+ |c_ULTIMATE.start_dll_append_#t~ret7#1.base| 2) |c_ULTIMATE.start_main_~#s~0#1.base|) (= |c_ULTIMATE.start_main_~data~0#1| 1) (<= (+ .cse1 2) |c_ULTIMATE.start_main_~#s~0#1.base|) (exists ((v_arrayElimIndex_97 Int) (v_arrayElimCell_1258 Int) (|v_#valid_BEFORE_CALL_213| (Array Int Int)) (|v_#valid_BEFORE_CALL_211| (Array Int Int))) (and (= (select |v_#valid_BEFORE_CALL_213| v_arrayElimIndex_97) 0) (= (select |v_#valid_BEFORE_CALL_211| v_arrayElimIndex_97) 1) (not (= v_arrayElimCell_1258 0)) (<= (+ 2 v_arrayElimCell_1258) |c_ULTIMATE.start_main_~#s~0#1.base|) (= (select |v_#valid_BEFORE_CALL_213| v_arrayElimCell_1258) 1) (= |v_#valid_BEFORE_CALL_211| (let ((.cse3 (@diff |v_#valid_BEFORE_CALL_213| |v_#valid_BEFORE_CALL_211|))) (store |v_#valid_BEFORE_CALL_213| .cse3 (select |v_#valid_BEFORE_CALL_211| .cse3)))))) (not (= .cse1 0))))) is different from false [2022-11-03 01:51:36,195 WARN L855 $PredicateComparison]: unable to prove that (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (let ((.cse1 (select (select |c_#memory_$Pointer$.base| .cse0) 4))) (and (= |c_ULTIMATE.start_dll_append_~head#1.base| |c_ULTIMATE.start_main_~#s~0#1.base|) (exists ((|v_old(#valid)_AFTER_CALL_114| (Array Int Int)) (|v_#valid_BEFORE_CALL_210| (Array Int Int))) (and (= (select |v_#valid_BEFORE_CALL_210| .cse0) 0) (= (select |v_old(#valid)_AFTER_CALL_114| .cse0) 1) (= (select |v_#valid_BEFORE_CALL_210| .cse1) 1) (= |v_old(#valid)_AFTER_CALL_114| (let ((.cse2 (@diff |v_#valid_BEFORE_CALL_210| |v_old(#valid)_AFTER_CALL_114|))) (store |v_#valid_BEFORE_CALL_210| .cse2 (select |v_old(#valid)_AFTER_CALL_114| .cse2)))) (= (select |v_old(#valid)_AFTER_CALL_114| |c_ULTIMATE.start_dll_append_#t~ret7#1.base|) 0))) (= (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 0) (= |c_ULTIMATE.start_main_~data~0#1| (select (select |c_#memory_int| |c_ULTIMATE.start_dll_append_#t~ret7#1.base|) 0)) (= |c_ULTIMATE.start_main_~#s~0#1.offset| 0) (= |c_ULTIMATE.start_dll_append_~head#1.offset| |c_ULTIMATE.start_main_~#s~0#1.offset|) (= |c_ULTIMATE.start_dll_append_#t~ret7#1.offset| 0) (<= (+ |c_ULTIMATE.start_dll_append_#t~ret7#1.base| 2) |c_ULTIMATE.start_main_~#s~0#1.base|) (= |c_ULTIMATE.start_main_~data~0#1| 1) (<= (+ .cse1 2) |c_ULTIMATE.start_main_~#s~0#1.base|) (exists ((v_arrayElimIndex_97 Int) (v_arrayElimCell_1258 Int) (|v_#valid_BEFORE_CALL_213| (Array Int Int)) (|v_#valid_BEFORE_CALL_211| (Array Int Int))) (and (= (select |v_#valid_BEFORE_CALL_213| v_arrayElimIndex_97) 0) (= (select |v_#valid_BEFORE_CALL_211| v_arrayElimIndex_97) 1) (not (= v_arrayElimCell_1258 0)) (<= (+ 2 v_arrayElimCell_1258) |c_ULTIMATE.start_main_~#s~0#1.base|) (= (select |v_#valid_BEFORE_CALL_213| v_arrayElimCell_1258) 1) (= |v_#valid_BEFORE_CALL_211| (let ((.cse3 (@diff |v_#valid_BEFORE_CALL_213| |v_#valid_BEFORE_CALL_211|))) (store |v_#valid_BEFORE_CALL_213| .cse3 (select |v_#valid_BEFORE_CALL_211| .cse3)))))) (not (= .cse1 0))))) is different from true [2022-11-03 01:51:36,299 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse1 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (let ((.cse0 (select (select |c_#memory_$Pointer$.base| .cse1) 4))) (and (= |c_ULTIMATE.start_dll_append_~head#1.base| |c_ULTIMATE.start_main_~#s~0#1.base|) (= |c_ULTIMATE.start_dll_append_~new_last~0#1.offset| 0) (= (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 0) (<= (+ 2 |c_ULTIMATE.start_dll_append_~new_last~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.base|) (= |c_ULTIMATE.start_main_~#s~0#1.offset| 0) (= |c_ULTIMATE.start_dll_append_~head#1.offset| |c_ULTIMATE.start_main_~#s~0#1.offset|) (= |c_ULTIMATE.start_main_~data~0#1| 1) (= |c_ULTIMATE.start_main_~data~0#1| (select (select |c_#memory_int| |c_ULTIMATE.start_dll_append_~new_last~0#1.base|) 0)) (<= (+ .cse0 2) |c_ULTIMATE.start_main_~#s~0#1.base|) (exists ((|v_old(#valid)_AFTER_CALL_114| (Array Int Int)) (|v_#valid_BEFORE_CALL_210| (Array Int Int))) (and (= (select |v_#valid_BEFORE_CALL_210| .cse1) 0) (= (select |v_old(#valid)_AFTER_CALL_114| .cse1) 1) (= (select |v_#valid_BEFORE_CALL_210| .cse0) 1) (= (select |v_old(#valid)_AFTER_CALL_114| |c_ULTIMATE.start_dll_append_~new_last~0#1.base|) 0) (= |v_old(#valid)_AFTER_CALL_114| (let ((.cse2 (@diff |v_#valid_BEFORE_CALL_210| |v_old(#valid)_AFTER_CALL_114|))) (store |v_#valid_BEFORE_CALL_210| .cse2 (select |v_old(#valid)_AFTER_CALL_114| .cse2)))))) (exists ((v_arrayElimIndex_97 Int) (v_arrayElimCell_1258 Int) (|v_#valid_BEFORE_CALL_213| (Array Int Int)) (|v_#valid_BEFORE_CALL_211| (Array Int Int))) (and (= (select |v_#valid_BEFORE_CALL_213| v_arrayElimIndex_97) 0) (= (select |v_#valid_BEFORE_CALL_211| v_arrayElimIndex_97) 1) (not (= v_arrayElimCell_1258 0)) (<= (+ 2 v_arrayElimCell_1258) |c_ULTIMATE.start_main_~#s~0#1.base|) (= (select |v_#valid_BEFORE_CALL_213| v_arrayElimCell_1258) 1) (= |v_#valid_BEFORE_CALL_211| (let ((.cse3 (@diff |v_#valid_BEFORE_CALL_213| |v_#valid_BEFORE_CALL_211|))) (store |v_#valid_BEFORE_CALL_213| .cse3 (select |v_#valid_BEFORE_CALL_211| .cse3)))))) (not (= .cse0 0))))) is different from false [2022-11-03 01:51:36,303 WARN L855 $PredicateComparison]: unable to prove that (let ((.cse1 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (let ((.cse0 (select (select |c_#memory_$Pointer$.base| .cse1) 4))) (and (= |c_ULTIMATE.start_dll_append_~head#1.base| |c_ULTIMATE.start_main_~#s~0#1.base|) (= |c_ULTIMATE.start_dll_append_~new_last~0#1.offset| 0) (= (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 0) (<= (+ 2 |c_ULTIMATE.start_dll_append_~new_last~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.base|) (= |c_ULTIMATE.start_main_~#s~0#1.offset| 0) (= |c_ULTIMATE.start_dll_append_~head#1.offset| |c_ULTIMATE.start_main_~#s~0#1.offset|) (= |c_ULTIMATE.start_main_~data~0#1| 1) (= |c_ULTIMATE.start_main_~data~0#1| (select (select |c_#memory_int| |c_ULTIMATE.start_dll_append_~new_last~0#1.base|) 0)) (<= (+ .cse0 2) |c_ULTIMATE.start_main_~#s~0#1.base|) (exists ((|v_old(#valid)_AFTER_CALL_114| (Array Int Int)) (|v_#valid_BEFORE_CALL_210| (Array Int Int))) (and (= (select |v_#valid_BEFORE_CALL_210| .cse1) 0) (= (select |v_old(#valid)_AFTER_CALL_114| .cse1) 1) (= (select |v_#valid_BEFORE_CALL_210| .cse0) 1) (= (select |v_old(#valid)_AFTER_CALL_114| |c_ULTIMATE.start_dll_append_~new_last~0#1.base|) 0) (= |v_old(#valid)_AFTER_CALL_114| (let ((.cse2 (@diff |v_#valid_BEFORE_CALL_210| |v_old(#valid)_AFTER_CALL_114|))) (store |v_#valid_BEFORE_CALL_210| .cse2 (select |v_old(#valid)_AFTER_CALL_114| .cse2)))))) (exists ((v_arrayElimIndex_97 Int) (v_arrayElimCell_1258 Int) (|v_#valid_BEFORE_CALL_213| (Array Int Int)) (|v_#valid_BEFORE_CALL_211| (Array Int Int))) (and (= (select |v_#valid_BEFORE_CALL_213| v_arrayElimIndex_97) 0) (= (select |v_#valid_BEFORE_CALL_211| v_arrayElimIndex_97) 1) (not (= v_arrayElimCell_1258 0)) (<= (+ 2 v_arrayElimCell_1258) |c_ULTIMATE.start_main_~#s~0#1.base|) (= (select |v_#valid_BEFORE_CALL_213| v_arrayElimCell_1258) 1) (= |v_#valid_BEFORE_CALL_211| (let ((.cse3 (@diff |v_#valid_BEFORE_CALL_213| |v_#valid_BEFORE_CALL_211|))) (store |v_#valid_BEFORE_CALL_213| .cse3 (select |v_#valid_BEFORE_CALL_211| .cse3)))))) (not (= .cse0 0))))) is different from true [2022-11-03 01:51:36,409 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse2 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (let ((.cse0 (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (.cse1 (select (select |c_#memory_$Pointer$.base| .cse2) 4))) (and (= |c_ULTIMATE.start_dll_append_~new_last~0#1.offset| 0) (= .cse0 0) (<= (+ 2 |c_ULTIMATE.start_dll_append_~new_last~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.base|) (= |c_ULTIMATE.start_main_~#s~0#1.offset| 0) (= |c_ULTIMATE.start_dll_append_~last~0#1.offset| .cse0) (= |c_ULTIMATE.start_main_~data~0#1| 1) (= |c_ULTIMATE.start_main_~data~0#1| (select (select |c_#memory_int| |c_ULTIMATE.start_dll_append_~new_last~0#1.base|) 0)) (<= (+ .cse1 2) |c_ULTIMATE.start_main_~#s~0#1.base|) (exists ((|v_old(#valid)_AFTER_CALL_114| (Array Int Int)) (|v_#valid_BEFORE_CALL_210| (Array Int Int))) (and (= (select |v_#valid_BEFORE_CALL_210| .cse2) 0) (= (select |v_old(#valid)_AFTER_CALL_114| .cse2) 1) (= (select |v_#valid_BEFORE_CALL_210| .cse1) 1) (= (select |v_old(#valid)_AFTER_CALL_114| |c_ULTIMATE.start_dll_append_~new_last~0#1.base|) 0) (= |v_old(#valid)_AFTER_CALL_114| (let ((.cse3 (@diff |v_#valid_BEFORE_CALL_210| |v_old(#valid)_AFTER_CALL_114|))) (store |v_#valid_BEFORE_CALL_210| .cse3 (select |v_old(#valid)_AFTER_CALL_114| .cse3)))))) (= |c_ULTIMATE.start_dll_append_~last~0#1.base| .cse2) (exists ((v_arrayElimIndex_97 Int) (v_arrayElimCell_1258 Int) (|v_#valid_BEFORE_CALL_213| (Array Int Int)) (|v_#valid_BEFORE_CALL_211| (Array Int Int))) (and (= (select |v_#valid_BEFORE_CALL_213| v_arrayElimIndex_97) 0) (= (select |v_#valid_BEFORE_CALL_211| v_arrayElimIndex_97) 1) (not (= v_arrayElimCell_1258 0)) (<= (+ 2 v_arrayElimCell_1258) |c_ULTIMATE.start_main_~#s~0#1.base|) (= (select |v_#valid_BEFORE_CALL_213| v_arrayElimCell_1258) 1) (= |v_#valid_BEFORE_CALL_211| (let ((.cse4 (@diff |v_#valid_BEFORE_CALL_213| |v_#valid_BEFORE_CALL_211|))) (store |v_#valid_BEFORE_CALL_213| .cse4 (select |v_#valid_BEFORE_CALL_211| .cse4)))))) (not (= .cse1 0))))) is different from false [2022-11-03 01:51:36,413 WARN L855 $PredicateComparison]: unable to prove that (let ((.cse2 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (let ((.cse0 (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (.cse1 (select (select |c_#memory_$Pointer$.base| .cse2) 4))) (and (= |c_ULTIMATE.start_dll_append_~new_last~0#1.offset| 0) (= .cse0 0) (<= (+ 2 |c_ULTIMATE.start_dll_append_~new_last~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.base|) (= |c_ULTIMATE.start_main_~#s~0#1.offset| 0) (= |c_ULTIMATE.start_dll_append_~last~0#1.offset| .cse0) (= |c_ULTIMATE.start_main_~data~0#1| 1) (= |c_ULTIMATE.start_main_~data~0#1| (select (select |c_#memory_int| |c_ULTIMATE.start_dll_append_~new_last~0#1.base|) 0)) (<= (+ .cse1 2) |c_ULTIMATE.start_main_~#s~0#1.base|) (exists ((|v_old(#valid)_AFTER_CALL_114| (Array Int Int)) (|v_#valid_BEFORE_CALL_210| (Array Int Int))) (and (= (select |v_#valid_BEFORE_CALL_210| .cse2) 0) (= (select |v_old(#valid)_AFTER_CALL_114| .cse2) 1) (= (select |v_#valid_BEFORE_CALL_210| .cse1) 1) (= (select |v_old(#valid)_AFTER_CALL_114| |c_ULTIMATE.start_dll_append_~new_last~0#1.base|) 0) (= |v_old(#valid)_AFTER_CALL_114| (let ((.cse3 (@diff |v_#valid_BEFORE_CALL_210| |v_old(#valid)_AFTER_CALL_114|))) (store |v_#valid_BEFORE_CALL_210| .cse3 (select |v_old(#valid)_AFTER_CALL_114| .cse3)))))) (= |c_ULTIMATE.start_dll_append_~last~0#1.base| .cse2) (exists ((v_arrayElimIndex_97 Int) (v_arrayElimCell_1258 Int) (|v_#valid_BEFORE_CALL_213| (Array Int Int)) (|v_#valid_BEFORE_CALL_211| (Array Int Int))) (and (= (select |v_#valid_BEFORE_CALL_213| v_arrayElimIndex_97) 0) (= (select |v_#valid_BEFORE_CALL_211| v_arrayElimIndex_97) 1) (not (= v_arrayElimCell_1258 0)) (<= (+ 2 v_arrayElimCell_1258) |c_ULTIMATE.start_main_~#s~0#1.base|) (= (select |v_#valid_BEFORE_CALL_213| v_arrayElimCell_1258) 1) (= |v_#valid_BEFORE_CALL_211| (let ((.cse4 (@diff |v_#valid_BEFORE_CALL_213| |v_#valid_BEFORE_CALL_211|))) (store |v_#valid_BEFORE_CALL_213| .cse4 (select |v_#valid_BEFORE_CALL_211| .cse4)))))) (not (= .cse1 0))))) is different from true [2022-11-03 01:51:36,614 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse4 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (let ((.cse0 (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (.cse1 (select |c_#memory_$Pointer$.base| .cse4))) (let ((.cse3 (select .cse1 4)) (.cse2 (+ .cse0 4))) (and (= |c_ULTIMATE.start_dll_append_~new_last~0#1.offset| 0) (= .cse0 0) (<= (+ 2 |c_ULTIMATE.start_dll_append_~new_last~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.base|) (= |c_ULTIMATE.start_main_~#s~0#1.offset| 0) (= (select .cse1 .cse2) |c_ULTIMATE.start_dll_append_~last~0#1.base|) (= |c_ULTIMATE.start_main_~data~0#1| 1) (= |c_ULTIMATE.start_main_~data~0#1| (select (select |c_#memory_int| |c_ULTIMATE.start_dll_append_~new_last~0#1.base|) 0)) (<= (+ .cse3 2) |c_ULTIMATE.start_main_~#s~0#1.base|) (exists ((|v_old(#valid)_AFTER_CALL_114| (Array Int Int)) (|v_#valid_BEFORE_CALL_210| (Array Int Int))) (and (= (select |v_#valid_BEFORE_CALL_210| .cse4) 0) (= (select |v_old(#valid)_AFTER_CALL_114| .cse4) 1) (= (select |v_#valid_BEFORE_CALL_210| .cse3) 1) (= (select |v_old(#valid)_AFTER_CALL_114| |c_ULTIMATE.start_dll_append_~new_last~0#1.base|) 0) (= |v_old(#valid)_AFTER_CALL_114| (let ((.cse5 (@diff |v_#valid_BEFORE_CALL_210| |v_old(#valid)_AFTER_CALL_114|))) (store |v_#valid_BEFORE_CALL_210| .cse5 (select |v_old(#valid)_AFTER_CALL_114| .cse5)))))) (exists ((v_arrayElimIndex_97 Int) (v_arrayElimCell_1258 Int) (|v_#valid_BEFORE_CALL_213| (Array Int Int)) (|v_#valid_BEFORE_CALL_211| (Array Int Int))) (and (= (select |v_#valid_BEFORE_CALL_213| v_arrayElimIndex_97) 0) (= (select |v_#valid_BEFORE_CALL_211| v_arrayElimIndex_97) 1) (not (= v_arrayElimCell_1258 0)) (<= (+ 2 v_arrayElimCell_1258) |c_ULTIMATE.start_main_~#s~0#1.base|) (= (select |v_#valid_BEFORE_CALL_213| v_arrayElimCell_1258) 1) (= |v_#valid_BEFORE_CALL_211| (let ((.cse6 (@diff |v_#valid_BEFORE_CALL_213| |v_#valid_BEFORE_CALL_211|))) (store |v_#valid_BEFORE_CALL_213| .cse6 (select |v_#valid_BEFORE_CALL_211| .cse6)))))) (not (= .cse3 0)) (= |c_ULTIMATE.start_dll_append_~last~0#1.offset| (select (select |c_#memory_$Pointer$.offset| .cse4) .cse2)))))) is different from false [2022-11-03 01:51:36,619 WARN L855 $PredicateComparison]: unable to prove that (let ((.cse4 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (let ((.cse0 (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (.cse1 (select |c_#memory_$Pointer$.base| .cse4))) (let ((.cse3 (select .cse1 4)) (.cse2 (+ .cse0 4))) (and (= |c_ULTIMATE.start_dll_append_~new_last~0#1.offset| 0) (= .cse0 0) (<= (+ 2 |c_ULTIMATE.start_dll_append_~new_last~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.base|) (= |c_ULTIMATE.start_main_~#s~0#1.offset| 0) (= (select .cse1 .cse2) |c_ULTIMATE.start_dll_append_~last~0#1.base|) (= |c_ULTIMATE.start_main_~data~0#1| 1) (= |c_ULTIMATE.start_main_~data~0#1| (select (select |c_#memory_int| |c_ULTIMATE.start_dll_append_~new_last~0#1.base|) 0)) (<= (+ .cse3 2) |c_ULTIMATE.start_main_~#s~0#1.base|) (exists ((|v_old(#valid)_AFTER_CALL_114| (Array Int Int)) (|v_#valid_BEFORE_CALL_210| (Array Int Int))) (and (= (select |v_#valid_BEFORE_CALL_210| .cse4) 0) (= (select |v_old(#valid)_AFTER_CALL_114| .cse4) 1) (= (select |v_#valid_BEFORE_CALL_210| .cse3) 1) (= (select |v_old(#valid)_AFTER_CALL_114| |c_ULTIMATE.start_dll_append_~new_last~0#1.base|) 0) (= |v_old(#valid)_AFTER_CALL_114| (let ((.cse5 (@diff |v_#valid_BEFORE_CALL_210| |v_old(#valid)_AFTER_CALL_114|))) (store |v_#valid_BEFORE_CALL_210| .cse5 (select |v_old(#valid)_AFTER_CALL_114| .cse5)))))) (exists ((v_arrayElimIndex_97 Int) (v_arrayElimCell_1258 Int) (|v_#valid_BEFORE_CALL_213| (Array Int Int)) (|v_#valid_BEFORE_CALL_211| (Array Int Int))) (and (= (select |v_#valid_BEFORE_CALL_213| v_arrayElimIndex_97) 0) (= (select |v_#valid_BEFORE_CALL_211| v_arrayElimIndex_97) 1) (not (= v_arrayElimCell_1258 0)) (<= (+ 2 v_arrayElimCell_1258) |c_ULTIMATE.start_main_~#s~0#1.base|) (= (select |v_#valid_BEFORE_CALL_213| v_arrayElimCell_1258) 1) (= |v_#valid_BEFORE_CALL_211| (let ((.cse6 (@diff |v_#valid_BEFORE_CALL_213| |v_#valid_BEFORE_CALL_211|))) (store |v_#valid_BEFORE_CALL_213| .cse6 (select |v_#valid_BEFORE_CALL_211| .cse6)))))) (not (= .cse3 0)) (= |c_ULTIMATE.start_dll_append_~last~0#1.offset| (select (select |c_#memory_$Pointer$.offset| .cse4) .cse2)))))) is different from true [2022-11-03 01:51:36,838 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:51:36,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:51:36,900 INFO L356 Elim1Store]: treesize reduction 97, result has 19.8 percent of original size [2022-11-03 01:51:36,900 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 7 new quantified variables, introduced 6 case distinctions, treesize of input 218 treesize of output 125 [2022-11-03 01:51:36,959 INFO L356 Elim1Store]: treesize reduction 66, result has 19.5 percent of original size [2022-11-03 01:51:36,959 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 439 treesize of output 298 [2022-11-03 01:51:37,003 INFO L356 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2022-11-03 01:51:37,003 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 6 new quantified variables, introduced 3 case distinctions, treesize of input 388 treesize of output 252 [2022-11-03 01:51:37,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:51:37,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:51:37,020 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 96 treesize of output 49 [2022-11-03 01:51:37,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:51:37,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:51:37,072 INFO L356 Elim1Store]: treesize reduction 90, result has 23.7 percent of original size [2022-11-03 01:51:37,072 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 4 case distinctions, treesize of input 145 treesize of output 132 [2022-11-03 01:51:37,097 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 36 treesize of output 62 [2022-11-03 01:51:37,189 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse4 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (let ((.cse0 (select (select |c_#memory_$Pointer$.base| .cse4) 4)) (.cse1 (+ (select (select |c_#memory_$Pointer$.offset| .cse4) 4) 4))) (let ((.cse2 (select (select |c_#memory_$Pointer$.base| .cse0) .cse1))) (and (= (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 0) (= (select (select |c_#memory_$Pointer$.offset| .cse0) .cse1) 0) (= |c_ULTIMATE.start_main_~#s~0#1.offset| 0) (<= (+ 2 .cse2) |c_ULTIMATE.start_main_~#s~0#1.base|) (= |c_ULTIMATE.start_main_~data~0#1| 1) (<= (+ .cse0 2) |c_ULTIMATE.start_main_~#s~0#1.base|) (= |c_ULTIMATE.start_main_~data~0#1| (select (select |c_#memory_int| .cse2) 0)) (exists ((v_arrayElimIndex_97 Int) (v_arrayElimCell_1258 Int) (|v_#valid_BEFORE_CALL_213| (Array Int Int)) (|v_#valid_BEFORE_CALL_211| (Array Int Int))) (and (= (select |v_#valid_BEFORE_CALL_213| v_arrayElimIndex_97) 0) (= (select |v_#valid_BEFORE_CALL_211| v_arrayElimIndex_97) 1) (not (= v_arrayElimCell_1258 0)) (<= (+ 2 v_arrayElimCell_1258) |c_ULTIMATE.start_main_~#s~0#1.base|) (= (select |v_#valid_BEFORE_CALL_213| v_arrayElimCell_1258) 1) (= |v_#valid_BEFORE_CALL_211| (let ((.cse3 (@diff |v_#valid_BEFORE_CALL_213| |v_#valid_BEFORE_CALL_211|))) (store |v_#valid_BEFORE_CALL_213| .cse3 (select |v_#valid_BEFORE_CALL_211| .cse3)))))) (not (= .cse0 0)) (exists ((|v_old(#valid)_AFTER_CALL_114| (Array Int Int)) (|v_#valid_BEFORE_CALL_210| (Array Int Int))) (and (= (select |v_#valid_BEFORE_CALL_210| .cse4) 0) (= (select |v_old(#valid)_AFTER_CALL_114| .cse4) 1) (= (select |v_#valid_BEFORE_CALL_210| .cse0) 1) (= (select |v_old(#valid)_AFTER_CALL_114| .cse2) 0) (= |v_old(#valid)_AFTER_CALL_114| (let ((.cse5 (@diff |v_#valid_BEFORE_CALL_210| |v_old(#valid)_AFTER_CALL_114|))) (store |v_#valid_BEFORE_CALL_210| .cse5 (select |v_old(#valid)_AFTER_CALL_114| .cse5)))))))))) is different from false [2022-11-03 01:51:37,194 WARN L855 $PredicateComparison]: unable to prove that (let ((.cse4 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (let ((.cse0 (select (select |c_#memory_$Pointer$.base| .cse4) 4)) (.cse1 (+ (select (select |c_#memory_$Pointer$.offset| .cse4) 4) 4))) (let ((.cse2 (select (select |c_#memory_$Pointer$.base| .cse0) .cse1))) (and (= (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 0) (= (select (select |c_#memory_$Pointer$.offset| .cse0) .cse1) 0) (= |c_ULTIMATE.start_main_~#s~0#1.offset| 0) (<= (+ 2 .cse2) |c_ULTIMATE.start_main_~#s~0#1.base|) (= |c_ULTIMATE.start_main_~data~0#1| 1) (<= (+ .cse0 2) |c_ULTIMATE.start_main_~#s~0#1.base|) (= |c_ULTIMATE.start_main_~data~0#1| (select (select |c_#memory_int| .cse2) 0)) (exists ((v_arrayElimIndex_97 Int) (v_arrayElimCell_1258 Int) (|v_#valid_BEFORE_CALL_213| (Array Int Int)) (|v_#valid_BEFORE_CALL_211| (Array Int Int))) (and (= (select |v_#valid_BEFORE_CALL_213| v_arrayElimIndex_97) 0) (= (select |v_#valid_BEFORE_CALL_211| v_arrayElimIndex_97) 1) (not (= v_arrayElimCell_1258 0)) (<= (+ 2 v_arrayElimCell_1258) |c_ULTIMATE.start_main_~#s~0#1.base|) (= (select |v_#valid_BEFORE_CALL_213| v_arrayElimCell_1258) 1) (= |v_#valid_BEFORE_CALL_211| (let ((.cse3 (@diff |v_#valid_BEFORE_CALL_213| |v_#valid_BEFORE_CALL_211|))) (store |v_#valid_BEFORE_CALL_213| .cse3 (select |v_#valid_BEFORE_CALL_211| .cse3)))))) (not (= .cse0 0)) (exists ((|v_old(#valid)_AFTER_CALL_114| (Array Int Int)) (|v_#valid_BEFORE_CALL_210| (Array Int Int))) (and (= (select |v_#valid_BEFORE_CALL_210| .cse4) 0) (= (select |v_old(#valid)_AFTER_CALL_114| .cse4) 1) (= (select |v_#valid_BEFORE_CALL_210| .cse0) 1) (= (select |v_old(#valid)_AFTER_CALL_114| .cse2) 0) (= |v_old(#valid)_AFTER_CALL_114| (let ((.cse5 (@diff |v_#valid_BEFORE_CALL_210| |v_old(#valid)_AFTER_CALL_114|))) (store |v_#valid_BEFORE_CALL_210| .cse5 (select |v_old(#valid)_AFTER_CALL_114| .cse5)))))))))) is different from true [2022-11-03 01:51:37,376 WARN L833 $PredicateComparison]: unable to prove that (and (= |c_ULTIMATE.start_main_~data~0#1| 1) (exists ((v_arrayElimIndex_97 Int) (v_arrayElimCell_1258 Int) (|v_old(#valid)_AFTER_CALL_114| (Array Int Int)) (|v_#valid_BEFORE_CALL_213| (Array Int Int)) (|ULTIMATE.start_main_~#s~0#1.base| Int) (|v_#valid_BEFORE_CALL_211| (Array Int Int)) (|v_#valid_BEFORE_CALL_210| (Array Int Int))) (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0#1.base|) 0))) (let ((.cse1 (select (select |c_#memory_$Pointer$.base| .cse0) 4)) (.cse6 (+ (select (select |c_#memory_$Pointer$.offset| .cse0) 4) 4))) (let ((.cse2 (select (select |c_#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0#1.base|) 0)) (.cse3 (select (select |c_#memory_$Pointer$.base| .cse1) .cse6))) (and (= .cse0 |c_ULTIMATE.start_main_~ptr~0#1.base|) (= (select |v_#valid_BEFORE_CALL_210| .cse1) 1) (not (= .cse1 0)) (= (select |v_#valid_BEFORE_CALL_213| v_arrayElimIndex_97) 0) (<= (+ 2 .cse1) |ULTIMATE.start_main_~#s~0#1.base|) (= (select |v_#valid_BEFORE_CALL_211| v_arrayElimIndex_97) 1) (= |c_ULTIMATE.start_main_~ptr~0#1.offset| .cse2) (= .cse2 0) (not (= v_arrayElimCell_1258 0)) (<= (+ 2 v_arrayElimCell_1258) |ULTIMATE.start_main_~#s~0#1.base|) (= (select |v_old(#valid)_AFTER_CALL_114| .cse3) 0) (= |c_ULTIMATE.start_main_~data~0#1| (select (select |c_#memory_int| .cse3) 0)) (<= (+ 2 .cse3) |ULTIMATE.start_main_~#s~0#1.base|) (= (select |v_#valid_BEFORE_CALL_210| .cse0) 0) (= (select |v_#valid_BEFORE_CALL_213| v_arrayElimCell_1258) 1) (= |v_old(#valid)_AFTER_CALL_114| (let ((.cse4 (@diff |v_#valid_BEFORE_CALL_210| |v_old(#valid)_AFTER_CALL_114|))) (store |v_#valid_BEFORE_CALL_210| .cse4 (select |v_old(#valid)_AFTER_CALL_114| .cse4)))) (= |v_#valid_BEFORE_CALL_211| (let ((.cse5 (@diff |v_#valid_BEFORE_CALL_213| |v_#valid_BEFORE_CALL_211|))) (store |v_#valid_BEFORE_CALL_213| .cse5 (select |v_#valid_BEFORE_CALL_211| .cse5)))) (= (select |v_old(#valid)_AFTER_CALL_114| .cse0) 1) (= (select (select |c_#memory_$Pointer$.offset| .cse1) .cse6) 0))))))) is different from false [2022-11-03 01:51:37,381 WARN L855 $PredicateComparison]: unable to prove that (and (= |c_ULTIMATE.start_main_~data~0#1| 1) (exists ((v_arrayElimIndex_97 Int) (v_arrayElimCell_1258 Int) (|v_old(#valid)_AFTER_CALL_114| (Array Int Int)) (|v_#valid_BEFORE_CALL_213| (Array Int Int)) (|ULTIMATE.start_main_~#s~0#1.base| Int) (|v_#valid_BEFORE_CALL_211| (Array Int Int)) (|v_#valid_BEFORE_CALL_210| (Array Int Int))) (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0#1.base|) 0))) (let ((.cse1 (select (select |c_#memory_$Pointer$.base| .cse0) 4)) (.cse6 (+ (select (select |c_#memory_$Pointer$.offset| .cse0) 4) 4))) (let ((.cse2 (select (select |c_#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0#1.base|) 0)) (.cse3 (select (select |c_#memory_$Pointer$.base| .cse1) .cse6))) (and (= .cse0 |c_ULTIMATE.start_main_~ptr~0#1.base|) (= (select |v_#valid_BEFORE_CALL_210| .cse1) 1) (not (= .cse1 0)) (= (select |v_#valid_BEFORE_CALL_213| v_arrayElimIndex_97) 0) (<= (+ 2 .cse1) |ULTIMATE.start_main_~#s~0#1.base|) (= (select |v_#valid_BEFORE_CALL_211| v_arrayElimIndex_97) 1) (= |c_ULTIMATE.start_main_~ptr~0#1.offset| .cse2) (= .cse2 0) (not (= v_arrayElimCell_1258 0)) (<= (+ 2 v_arrayElimCell_1258) |ULTIMATE.start_main_~#s~0#1.base|) (= (select |v_old(#valid)_AFTER_CALL_114| .cse3) 0) (= |c_ULTIMATE.start_main_~data~0#1| (select (select |c_#memory_int| .cse3) 0)) (<= (+ 2 .cse3) |ULTIMATE.start_main_~#s~0#1.base|) (= (select |v_#valid_BEFORE_CALL_210| .cse0) 0) (= (select |v_#valid_BEFORE_CALL_213| v_arrayElimCell_1258) 1) (= |v_old(#valid)_AFTER_CALL_114| (let ((.cse4 (@diff |v_#valid_BEFORE_CALL_210| |v_old(#valid)_AFTER_CALL_114|))) (store |v_#valid_BEFORE_CALL_210| .cse4 (select |v_old(#valid)_AFTER_CALL_114| .cse4)))) (= |v_#valid_BEFORE_CALL_211| (let ((.cse5 (@diff |v_#valid_BEFORE_CALL_213| |v_#valid_BEFORE_CALL_211|))) (store |v_#valid_BEFORE_CALL_213| .cse5 (select |v_#valid_BEFORE_CALL_211| .cse5)))) (= (select |v_old(#valid)_AFTER_CALL_114| .cse0) 1) (= (select (select |c_#memory_$Pointer$.offset| .cse1) .cse6) 0))))))) is different from true [2022-11-03 01:51:37,767 WARN L833 $PredicateComparison]: unable to prove that (and (exists ((v_arrayElimIndex_97 Int) (v_arrayElimCell_1258 Int) (|v_old(#valid)_AFTER_CALL_114| (Array Int Int)) (|v_#valid_BEFORE_CALL_213| (Array Int Int)) (|ULTIMATE.start_main_~#s~0#1.base| Int) (|v_#valid_BEFORE_CALL_211| (Array Int Int)) (|v_#valid_BEFORE_CALL_210| (Array Int Int))) (let ((.cse5 (select (select |c_#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0#1.base|) 0))) (let ((.cse9 (select |c_#memory_$Pointer$.offset| .cse5)) (.cse1 (select |c_#memory_$Pointer$.base| .cse5))) (let ((.cse3 (select (select |c_#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0#1.base|) 0)) (.cse0 (select .cse1 4)) (.cse8 (+ (select .cse9 4) 4))) (let ((.cse4 (select (select |c_#memory_$Pointer$.base| .cse0) .cse8)) (.cse2 (+ .cse3 4))) (and (= (select |v_#valid_BEFORE_CALL_210| .cse0) 1) (= |c_ULTIMATE.start_main_~ptr~0#1.base| (select .cse1 .cse2)) (not (= .cse0 0)) (= (select |v_#valid_BEFORE_CALL_213| v_arrayElimIndex_97) 0) (<= (+ 2 .cse0) |ULTIMATE.start_main_~#s~0#1.base|) (= (select |v_#valid_BEFORE_CALL_211| v_arrayElimIndex_97) 1) (= .cse3 0) (not (= v_arrayElimCell_1258 0)) (<= (+ 2 v_arrayElimCell_1258) |ULTIMATE.start_main_~#s~0#1.base|) (= (select |v_old(#valid)_AFTER_CALL_114| .cse4) 0) (= |c_ULTIMATE.start_main_~data~0#1| (select (select |c_#memory_int| .cse4) 0)) (<= (+ 2 .cse4) |ULTIMATE.start_main_~#s~0#1.base|) (= (select |v_#valid_BEFORE_CALL_210| .cse5) 0) (= (select |v_#valid_BEFORE_CALL_213| v_arrayElimCell_1258) 1) (= |v_old(#valid)_AFTER_CALL_114| (let ((.cse6 (@diff |v_#valid_BEFORE_CALL_210| |v_old(#valid)_AFTER_CALL_114|))) (store |v_#valid_BEFORE_CALL_210| .cse6 (select |v_old(#valid)_AFTER_CALL_114| .cse6)))) (= |v_#valid_BEFORE_CALL_211| (let ((.cse7 (@diff |v_#valid_BEFORE_CALL_213| |v_#valid_BEFORE_CALL_211|))) (store |v_#valid_BEFORE_CALL_213| .cse7 (select |v_#valid_BEFORE_CALL_211| .cse7)))) (= (select |v_old(#valid)_AFTER_CALL_114| .cse5) 1) (= (select (select |c_#memory_$Pointer$.offset| .cse0) .cse8) 0) (= (select .cse9 .cse2) |c_ULTIMATE.start_main_~ptr~0#1.offset|))))))) (= |c_ULTIMATE.start_main_~data~0#1| 1)) is different from false [2022-11-03 01:51:37,773 WARN L855 $PredicateComparison]: unable to prove that (and (exists ((v_arrayElimIndex_97 Int) (v_arrayElimCell_1258 Int) (|v_old(#valid)_AFTER_CALL_114| (Array Int Int)) (|v_#valid_BEFORE_CALL_213| (Array Int Int)) (|ULTIMATE.start_main_~#s~0#1.base| Int) (|v_#valid_BEFORE_CALL_211| (Array Int Int)) (|v_#valid_BEFORE_CALL_210| (Array Int Int))) (let ((.cse5 (select (select |c_#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0#1.base|) 0))) (let ((.cse9 (select |c_#memory_$Pointer$.offset| .cse5)) (.cse1 (select |c_#memory_$Pointer$.base| .cse5))) (let ((.cse3 (select (select |c_#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0#1.base|) 0)) (.cse0 (select .cse1 4)) (.cse8 (+ (select .cse9 4) 4))) (let ((.cse4 (select (select |c_#memory_$Pointer$.base| .cse0) .cse8)) (.cse2 (+ .cse3 4))) (and (= (select |v_#valid_BEFORE_CALL_210| .cse0) 1) (= |c_ULTIMATE.start_main_~ptr~0#1.base| (select .cse1 .cse2)) (not (= .cse0 0)) (= (select |v_#valid_BEFORE_CALL_213| v_arrayElimIndex_97) 0) (<= (+ 2 .cse0) |ULTIMATE.start_main_~#s~0#1.base|) (= (select |v_#valid_BEFORE_CALL_211| v_arrayElimIndex_97) 1) (= .cse3 0) (not (= v_arrayElimCell_1258 0)) (<= (+ 2 v_arrayElimCell_1258) |ULTIMATE.start_main_~#s~0#1.base|) (= (select |v_old(#valid)_AFTER_CALL_114| .cse4) 0) (= |c_ULTIMATE.start_main_~data~0#1| (select (select |c_#memory_int| .cse4) 0)) (<= (+ 2 .cse4) |ULTIMATE.start_main_~#s~0#1.base|) (= (select |v_#valid_BEFORE_CALL_210| .cse5) 0) (= (select |v_#valid_BEFORE_CALL_213| v_arrayElimCell_1258) 1) (= |v_old(#valid)_AFTER_CALL_114| (let ((.cse6 (@diff |v_#valid_BEFORE_CALL_210| |v_old(#valid)_AFTER_CALL_114|))) (store |v_#valid_BEFORE_CALL_210| .cse6 (select |v_old(#valid)_AFTER_CALL_114| .cse6)))) (= |v_#valid_BEFORE_CALL_211| (let ((.cse7 (@diff |v_#valid_BEFORE_CALL_213| |v_#valid_BEFORE_CALL_211|))) (store |v_#valid_BEFORE_CALL_213| .cse7 (select |v_#valid_BEFORE_CALL_211| .cse7)))) (= (select |v_old(#valid)_AFTER_CALL_114| .cse5) 1) (= (select (select |c_#memory_$Pointer$.offset| .cse0) .cse8) 0) (= (select .cse9 .cse2) |c_ULTIMATE.start_main_~ptr~0#1.offset|))))))) (= |c_ULTIMATE.start_main_~data~0#1| 1)) is different from true [2022-11-03 01:51:37,945 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 01:51:37,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:51:37,978 INFO L356 Elim1Store]: treesize reduction 93, result has 7.0 percent of original size [2022-11-03 01:51:37,979 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 10 new quantified variables, introduced 10 case distinctions, treesize of input 239 treesize of output 116 [2022-11-03 01:51:37,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:51:37,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:51:38,025 INFO L356 Elim1Store]: treesize reduction 22, result has 24.1 percent of original size [2022-11-03 01:51:38,026 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 8 new quantified variables, introduced 4 case distinctions, treesize of input 40 treesize of output 31 [2022-11-03 01:51:38,073 WARN L833 $PredicateComparison]: unable to prove that (and (= |c_ULTIMATE.start_main_~ptr~0#1.offset| 0) (exists ((v_arrayElimIndex_112 Int) (|v_old(#valid)_AFTER_CALL_114| (Array Int Int)) (v_arrayElimIndex_109 Int) (|v_#valid_BEFORE_CALL_210| (Array Int Int))) (and (= (select |v_#valid_BEFORE_CALL_210| v_arrayElimIndex_112) 1) (= |v_old(#valid)_AFTER_CALL_114| (let ((.cse0 (@diff |v_#valid_BEFORE_CALL_210| |v_old(#valid)_AFTER_CALL_114|))) (store |v_#valid_BEFORE_CALL_210| .cse0 (select |v_old(#valid)_AFTER_CALL_114| .cse0)))) (= (select |v_#valid_BEFORE_CALL_210| v_arrayElimIndex_109) 0) (not (= v_arrayElimIndex_112 0)) (= 0 (select |v_old(#valid)_AFTER_CALL_114| |c_ULTIMATE.start_main_~ptr~0#1.base|)) (= (select |v_old(#valid)_AFTER_CALL_114| v_arrayElimIndex_109) 1))) (= |c_ULTIMATE.start_main_~data~0#1| (select (select |c_#memory_int| |c_ULTIMATE.start_main_~ptr~0#1.base|) 0)) (= |c_ULTIMATE.start_main_~data~0#1| 1)) is different from false [2022-11-03 01:51:38,077 WARN L855 $PredicateComparison]: unable to prove that (and (= |c_ULTIMATE.start_main_~ptr~0#1.offset| 0) (exists ((v_arrayElimIndex_112 Int) (|v_old(#valid)_AFTER_CALL_114| (Array Int Int)) (v_arrayElimIndex_109 Int) (|v_#valid_BEFORE_CALL_210| (Array Int Int))) (and (= (select |v_#valid_BEFORE_CALL_210| v_arrayElimIndex_112) 1) (= |v_old(#valid)_AFTER_CALL_114| (let ((.cse0 (@diff |v_#valid_BEFORE_CALL_210| |v_old(#valid)_AFTER_CALL_114|))) (store |v_#valid_BEFORE_CALL_210| .cse0 (select |v_old(#valid)_AFTER_CALL_114| .cse0)))) (= (select |v_#valid_BEFORE_CALL_210| v_arrayElimIndex_109) 0) (not (= v_arrayElimIndex_112 0)) (= 0 (select |v_old(#valid)_AFTER_CALL_114| |c_ULTIMATE.start_main_~ptr~0#1.base|)) (= (select |v_old(#valid)_AFTER_CALL_114| v_arrayElimIndex_109) 1))) (= |c_ULTIMATE.start_main_~data~0#1| (select (select |c_#memory_int| |c_ULTIMATE.start_main_~ptr~0#1.base|) 0)) (= |c_ULTIMATE.start_main_~data~0#1| 1)) is different from true [2022-11-03 01:51:38,091 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 15 treesize of output 7 [2022-11-03 01:51:38,140 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 16 not checked. [2022-11-03 01:51:38,140 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 01:51:38,376 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2875 (Array Int Int)) (v_ArrVal_2874 (Array Int Int)) (v_ArrVal_2882 Int) (v_ArrVal_2872 (Array Int Int))) (= |c_ULTIMATE.start_main_~data~0#1| (let ((.cse7 (+ |c_ULTIMATE.start_dll_append_~last~0#1.offset| 4))) (let ((.cse4 (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_append_~last~0#1.base| (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_append_~last~0#1.base|) .cse7 |c_ULTIMATE.start_dll_append_~new_last~0#1.offset|)) |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_2875)) (.cse1 (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_append_~last~0#1.base| (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_append_~last~0#1.base|) .cse7 |c_ULTIMATE.start_dll_append_~new_last~0#1.base|)) |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_2874))) (let ((.cse5 (select (select .cse1 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (.cse6 (+ (select (select .cse4 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 4))) (let ((.cse2 (select (select .cse1 .cse5) .cse6)) (.cse3 (+ (select (select .cse4 .cse5) .cse6) 4))) (select (select (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_dll_append_~last~0#1.base| v_ArrVal_2872))) (store .cse0 |c_ULTIMATE.start_dll_append_~new_last~0#1.base| (store (select .cse0 |c_ULTIMATE.start_dll_append_~new_last~0#1.base|) (+ |c_ULTIMATE.start_dll_append_~new_last~0#1.offset| 8) v_ArrVal_2882))) (select (select .cse1 .cse2) .cse3)) (select (select .cse4 .cse2) .cse3)))))))) is different from false [2022-11-03 01:51:38,423 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2875 (Array Int Int)) (v_ArrVal_2874 (Array Int Int)) (v_ArrVal_2882 Int) (v_ArrVal_2872 (Array Int Int))) (= |c_ULTIMATE.start_main_~data~0#1| (let ((.cse9 (+ |c_ULTIMATE.start_dll_append_~last~0#1.offset| 4))) (let ((.cse1 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_append_~last~0#1.base|) .cse9)) (.cse8 (+ (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_append_~last~0#1.base|) .cse9) 4))) (let ((.cse5 (store (store |c_#memory_$Pointer$.offset| .cse1 (store (select |c_#memory_$Pointer$.offset| .cse1) .cse8 |c_ULTIMATE.start_dll_append_~new_last~0#1.offset|)) |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_2875)) (.cse2 (store (store |c_#memory_$Pointer$.base| .cse1 (store (select |c_#memory_$Pointer$.base| .cse1) .cse8 |c_ULTIMATE.start_dll_append_~new_last~0#1.base|)) |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_2874))) (let ((.cse6 (select (select .cse2 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (.cse7 (+ (select (select .cse5 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 4))) (let ((.cse3 (select (select .cse2 .cse6) .cse7)) (.cse4 (+ 4 (select (select .cse5 .cse6) .cse7)))) (select (select (let ((.cse0 (store |c_#memory_int| .cse1 v_ArrVal_2872))) (store .cse0 |c_ULTIMATE.start_dll_append_~new_last~0#1.base| (store (select .cse0 |c_ULTIMATE.start_dll_append_~new_last~0#1.base|) (+ |c_ULTIMATE.start_dll_append_~new_last~0#1.offset| 8) v_ArrVal_2882))) (select (select .cse2 .cse3) .cse4)) (select (select .cse5 .cse3) .cse4))))))))) is different from false [2022-11-03 01:51:38,459 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2875 (Array Int Int)) (v_ArrVal_2874 (Array Int Int)) (v_ArrVal_2882 Int) (v_ArrVal_2872 (Array Int Int))) (= |c_ULTIMATE.start_main_~data~0#1| (let ((.cse9 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_append_~head#1.base|) |c_ULTIMATE.start_dll_append_~head#1.offset|)) (.cse10 (+ (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_append_~head#1.base|) |c_ULTIMATE.start_dll_append_~head#1.offset|) 4))) (let ((.cse1 (select (select |c_#memory_$Pointer$.base| .cse9) .cse10)) (.cse8 (+ (select (select |c_#memory_$Pointer$.offset| .cse9) .cse10) 4))) (let ((.cse5 (store (store |c_#memory_$Pointer$.offset| .cse1 (store (select |c_#memory_$Pointer$.offset| .cse1) .cse8 |c_ULTIMATE.start_dll_append_~new_last~0#1.offset|)) |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_2875)) (.cse2 (store (store |c_#memory_$Pointer$.base| .cse1 (store (select |c_#memory_$Pointer$.base| .cse1) .cse8 |c_ULTIMATE.start_dll_append_~new_last~0#1.base|)) |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_2874))) (let ((.cse6 (select (select .cse2 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (.cse7 (+ (select (select .cse5 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 4))) (let ((.cse3 (select (select .cse2 .cse6) .cse7)) (.cse4 (+ (select (select .cse5 .cse6) .cse7) 4))) (select (select (let ((.cse0 (store |c_#memory_int| .cse1 v_ArrVal_2872))) (store .cse0 |c_ULTIMATE.start_dll_append_~new_last~0#1.base| (store (select .cse0 |c_ULTIMATE.start_dll_append_~new_last~0#1.base|) (+ |c_ULTIMATE.start_dll_append_~new_last~0#1.offset| 8) v_ArrVal_2882))) (select (select .cse2 .cse3) .cse4)) (select (select .cse5 .cse3) .cse4))))))))) is different from false [2022-11-03 01:51:38,484 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2875 (Array Int Int)) (v_ArrVal_2874 (Array Int Int)) (v_ArrVal_2882 Int) (v_ArrVal_2872 (Array Int Int))) (= |c_ULTIMATE.start_main_~data~0#1| (let ((.cse9 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_append_~head#1.base|) |c_ULTIMATE.start_dll_append_~head#1.offset|)) (.cse10 (+ (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_append_~head#1.base|) |c_ULTIMATE.start_dll_append_~head#1.offset|) 4))) (let ((.cse1 (select (select |c_#memory_$Pointer$.base| .cse9) .cse10)) (.cse8 (+ (select (select |c_#memory_$Pointer$.offset| .cse9) .cse10) 4))) (let ((.cse5 (store (store |c_#memory_$Pointer$.offset| .cse1 (store (select |c_#memory_$Pointer$.offset| .cse1) .cse8 |c_ULTIMATE.start_dll_append_#t~ret7#1.offset|)) |c_ULTIMATE.start_dll_append_#t~ret7#1.base| v_ArrVal_2875)) (.cse2 (store (store |c_#memory_$Pointer$.base| .cse1 (store (select |c_#memory_$Pointer$.base| .cse1) .cse8 |c_ULTIMATE.start_dll_append_#t~ret7#1.base|)) |c_ULTIMATE.start_dll_append_#t~ret7#1.base| v_ArrVal_2874))) (let ((.cse6 (select (select .cse2 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (.cse7 (+ (select (select .cse5 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 4))) (let ((.cse3 (select (select .cse2 .cse6) .cse7)) (.cse4 (+ 4 (select (select .cse5 .cse6) .cse7)))) (select (select (let ((.cse0 (store |c_#memory_int| .cse1 v_ArrVal_2872))) (store .cse0 |c_ULTIMATE.start_dll_append_#t~ret7#1.base| (store (select .cse0 |c_ULTIMATE.start_dll_append_#t~ret7#1.base|) (+ 8 |c_ULTIMATE.start_dll_append_#t~ret7#1.offset|) v_ArrVal_2882))) (select (select .cse2 .cse3) .cse4)) (select (select .cse5 .cse3) .cse4))))))))) is different from false [2022-11-03 01:51:38,618 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 01:51:38,618 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 1383 treesize of output 1376 [2022-11-03 01:51:38,648 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 01:51:38,649 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 23236 treesize of output 21928 [2022-11-03 01:51:38,676 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 23884 treesize of output 20624 [2022-11-03 01:51:39,211 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 4662 treesize of output 3358 [2022-11-03 01:51:55,688 WARN L234 SmtUtils]: Spent 16.44s on a formula simplification that was a NOOP. DAG size: 256 (called from [L 353] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-03 01:51:55,689 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 01:51:55,690 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 12579 treesize of output 25035