./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-sets/test_mutex_unlock_at_exit.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e04fb08f 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_6e850a3a-6ec8-4985-b545-202494783d6b/bin/utaipan-Xvt2sAort0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e850a3a-6ec8-4985-b545-202494783d6b/bin/utaipan-Xvt2sAort0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e850a3a-6ec8-4985-b545-202494783d6b/bin/utaipan-Xvt2sAort0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e850a3a-6ec8-4985-b545-202494783d6b/bin/utaipan-Xvt2sAort0/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-sets/test_mutex_unlock_at_exit.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e850a3a-6ec8-4985-b545-202494783d6b/bin/utaipan-Xvt2sAort0/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e850a3a-6ec8-4985-b545-202494783d6b/bin/utaipan-Xvt2sAort0 --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 fd310154a8f082280317f3bf1f868dbee13522304c8e13d29736e7fb8b36c7cf --- 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-e04fb08 [2022-11-16 19:38:58,619 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 19:38:58,622 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 19:38:58,671 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 19:38:58,672 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 19:38:58,675 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 19:38:58,678 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 19:38:58,682 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 19:38:58,687 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 19:38:58,688 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 19:38:58,691 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 19:38:58,693 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 19:38:58,694 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 19:38:58,698 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 19:38:58,700 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 19:38:58,703 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 19:38:58,705 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 19:38:58,712 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 19:38:58,714 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 19:38:58,716 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 19:38:58,723 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 19:38:58,725 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 19:38:58,726 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 19:38:58,729 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 19:38:58,733 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 19:38:58,738 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 19:38:58,738 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 19:38:58,739 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 19:38:58,741 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 19:38:58,742 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 19:38:58,742 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 19:38:58,743 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 19:38:58,745 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 19:38:58,746 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 19:38:58,748 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 19:38:58,749 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 19:38:58,750 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 19:38:58,751 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 19:38:58,751 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 19:38:58,752 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 19:38:58,752 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 19:38:58,753 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e850a3a-6ec8-4985-b545-202494783d6b/bin/utaipan-Xvt2sAort0/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-16 19:38:58,788 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 19:38:58,788 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 19:38:58,788 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 19:38:58,789 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 19:38:58,789 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 19:38:58,790 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 19:38:58,790 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-16 19:38:58,790 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-16 19:38:58,790 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-16 19:38:58,790 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-16 19:38:58,791 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-16 19:38:58,791 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-16 19:38:58,791 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-16 19:38:58,791 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-16 19:38:58,792 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-16 19:38:58,792 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-16 19:38:58,792 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-16 19:38:58,792 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-16 19:38:58,793 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 19:38:58,793 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 19:38:58,793 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 19:38:58,794 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 19:38:58,794 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 19:38:58,794 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 19:38:58,794 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 19:38:58,794 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 19:38:58,795 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 19:38:58,795 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 19:38:58,795 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 19:38:58,795 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 19:38:58,796 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 19:38:58,796 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 19:38:58,796 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 19:38:58,796 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 19:38:58,797 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-16 19:38:58,797 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 19:38:58,797 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 19:38:58,797 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-16 19:38:58,797 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 19:38:58,798 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 19:38:58,798 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-16 19:38:58,798 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_6e850a3a-6ec8-4985-b545-202494783d6b/bin/utaipan-Xvt2sAort0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e850a3a-6ec8-4985-b545-202494783d6b/bin/utaipan-Xvt2sAort0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fd310154a8f082280317f3bf1f868dbee13522304c8e13d29736e7fb8b36c7cf [2022-11-16 19:38:59,110 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 19:38:59,145 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 19:38:59,147 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 19:38:59,149 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 19:38:59,150 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 19:38:59,151 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e850a3a-6ec8-4985-b545-202494783d6b/bin/utaipan-Xvt2sAort0/../../sv-benchmarks/c/ldv-sets/test_mutex_unlock_at_exit.i [2022-11-16 19:38:59,239 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e850a3a-6ec8-4985-b545-202494783d6b/bin/utaipan-Xvt2sAort0/data/410c09319/86771005350c4327a324fd4d94e244fb/FLAGb79f1fb54 [2022-11-16 19:38:59,821 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 19:38:59,825 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e850a3a-6ec8-4985-b545-202494783d6b/sv-benchmarks/c/ldv-sets/test_mutex_unlock_at_exit.i [2022-11-16 19:38:59,839 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e850a3a-6ec8-4985-b545-202494783d6b/bin/utaipan-Xvt2sAort0/data/410c09319/86771005350c4327a324fd4d94e244fb/FLAGb79f1fb54 [2022-11-16 19:39:00,095 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e850a3a-6ec8-4985-b545-202494783d6b/bin/utaipan-Xvt2sAort0/data/410c09319/86771005350c4327a324fd4d94e244fb [2022-11-16 19:39:00,098 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 19:39:00,101 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 19:39:00,107 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 19:39:00,108 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 19:39:00,111 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 19:39:00,113 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 07:39:00" (1/1) ... [2022-11-16 19:39:00,114 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52fab3e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:39:00, skipping insertion in model container [2022-11-16 19:39:00,115 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 07:39:00" (1/1) ... [2022-11-16 19:39:00,127 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 19:39:00,196 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 19:39:00,596 WARN L229 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_6e850a3a-6ec8-4985-b545-202494783d6b/sv-benchmarks/c/ldv-sets/test_mutex_unlock_at_exit.i[25842,25855] [2022-11-16 19:39:00,603 WARN L229 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_6e850a3a-6ec8-4985-b545-202494783d6b/sv-benchmarks/c/ldv-sets/test_mutex_unlock_at_exit.i[25967,25980] [2022-11-16 19:39:00,607 WARN L229 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_6e850a3a-6ec8-4985-b545-202494783d6b/sv-benchmarks/c/ldv-sets/test_mutex_unlock_at_exit.i[26082,26095] [2022-11-16 19:39:00,620 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 19:39:00,629 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 19:39:00,676 WARN L229 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_6e850a3a-6ec8-4985-b545-202494783d6b/sv-benchmarks/c/ldv-sets/test_mutex_unlock_at_exit.i[25842,25855] [2022-11-16 19:39:00,677 WARN L229 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_6e850a3a-6ec8-4985-b545-202494783d6b/sv-benchmarks/c/ldv-sets/test_mutex_unlock_at_exit.i[25967,25980] [2022-11-16 19:39:00,678 WARN L229 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_6e850a3a-6ec8-4985-b545-202494783d6b/sv-benchmarks/c/ldv-sets/test_mutex_unlock_at_exit.i[26082,26095] [2022-11-16 19:39:00,680 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 19:39:00,709 INFO L208 MainTranslator]: Completed translation [2022-11-16 19:39:00,710 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:39:00 WrapperNode [2022-11-16 19:39:00,710 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 19:39:00,711 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 19:39:00,712 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 19:39:00,714 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 19:39:00,723 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:39:00" (1/1) ... [2022-11-16 19:39:00,767 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:39:00" (1/1) ... [2022-11-16 19:39:00,807 INFO L138 Inliner]: procedures = 139, calls = 56, calls flagged for inlining = 15, calls inlined = 14, statements flattened = 128 [2022-11-16 19:39:00,808 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 19:39:00,809 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 19:39:00,810 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 19:39:00,810 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 19:39:00,819 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:39:00" (1/1) ... [2022-11-16 19:39:00,820 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:39:00" (1/1) ... [2022-11-16 19:39:00,842 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:39:00" (1/1) ... [2022-11-16 19:39:00,842 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:39:00" (1/1) ... [2022-11-16 19:39:00,850 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:39:00" (1/1) ... [2022-11-16 19:39:00,868 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:39:00" (1/1) ... [2022-11-16 19:39:00,870 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:39:00" (1/1) ... [2022-11-16 19:39:00,872 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:39:00" (1/1) ... [2022-11-16 19:39:00,875 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 19:39:00,886 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 19:39:00,886 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 19:39:00,886 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 19:39:00,887 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:39:00" (1/1) ... [2022-11-16 19:39:00,894 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 19:39:00,906 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e850a3a-6ec8-4985-b545-202494783d6b/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 19:39:00,922 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e850a3a-6ec8-4985-b545-202494783d6b/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 19:39:00,944 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e850a3a-6ec8-4985-b545-202494783d6b/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 19:39:00,965 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2022-11-16 19:39:00,965 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2022-11-16 19:39:00,965 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-16 19:39:00,965 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-11-16 19:39:00,966 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-11-16 19:39:00,966 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 19:39:00,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-16 19:39:00,966 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_in_set [2022-11-16 19:39:00,966 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_in_set [2022-11-16 19:39:00,966 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-16 19:39:00,966 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 19:39:00,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-16 19:39:00,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 19:39:00,967 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_successful_malloc [2022-11-16 19:39:00,967 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_successful_malloc [2022-11-16 19:39:00,967 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 19:39:00,967 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 19:39:01,170 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 19:39:01,172 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 19:39:01,538 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 19:39:01,686 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 19:39:01,686 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-16 19:39:01,689 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 07:39:01 BoogieIcfgContainer [2022-11-16 19:39:01,689 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 19:39:01,692 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 19:39:01,692 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 19:39:01,696 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 19:39:01,697 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 07:39:00" (1/3) ... [2022-11-16 19:39:01,698 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2002fe67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 07:39:01, skipping insertion in model container [2022-11-16 19:39:01,698 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:39:00" (2/3) ... [2022-11-16 19:39:01,699 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2002fe67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 07:39:01, skipping insertion in model container [2022-11-16 19:39:01,699 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 07:39:01" (3/3) ... [2022-11-16 19:39:01,700 INFO L112 eAbstractionObserver]: Analyzing ICFG test_mutex_unlock_at_exit.i [2022-11-16 19:39:01,722 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 19:39:01,722 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-11-16 19:39:01,778 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 19:39:01,786 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;@49cf02af, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 19:39:01,787 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-11-16 19:39:01,792 INFO L276 IsEmpty]: Start isEmpty. Operand has 45 states, 28 states have (on average 1.3571428571428572) internal successors, (38), 31 states have internal predecessors, (38), 9 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2022-11-16 19:39:01,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-16 19:39:01,803 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 19:39:01,803 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 19:39:01,804 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 19:39:01,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 19:39:01,811 INFO L85 PathProgramCache]: Analyzing trace with hash 2027166430, now seen corresponding path program 1 times [2022-11-16 19:39:01,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 19:39:01,824 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591937951] [2022-11-16 19:39:01,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:39:01,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 19:39:02,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 19:39:02,273 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-16 19:39:02,273 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 19:39:02,274 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [591937951] [2022-11-16 19:39:02,275 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [591937951] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 19:39:02,275 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 19:39:02,275 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 19:39:02,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992977081] [2022-11-16 19:39:02,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 19:39:02,282 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 19:39:02,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 19:39:02,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 19:39:02,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 19:39:02,315 INFO L87 Difference]: Start difference. First operand has 45 states, 28 states have (on average 1.3571428571428572) internal successors, (38), 31 states have internal predecessors, (38), 9 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-16 19:39:02,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 19:39:02,437 INFO L93 Difference]: Finished difference Result 88 states and 112 transitions. [2022-11-16 19:39:02,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 19:39:02,440 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 19 [2022-11-16 19:39:02,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 19:39:02,456 INFO L225 Difference]: With dead ends: 88 [2022-11-16 19:39:02,456 INFO L226 Difference]: Without dead ends: 47 [2022-11-16 19:39:02,461 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 19:39:02,466 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 0 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 19:39:02,468 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 118 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 19:39:02,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2022-11-16 19:39:02,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2022-11-16 19:39:02,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 30 states have (on average 1.2) internal successors, (36), 32 states have internal predecessors, (36), 9 states have call successors, (9), 4 states have call predecessors, (9), 5 states have return successors, (12), 10 states have call predecessors, (12), 9 states have call successors, (12) [2022-11-16 19:39:02,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 57 transitions. [2022-11-16 19:39:02,514 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 57 transitions. Word has length 19 [2022-11-16 19:39:02,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 19:39:02,515 INFO L495 AbstractCegarLoop]: Abstraction has 47 states and 57 transitions. [2022-11-16 19:39:02,515 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-16 19:39:02,515 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 57 transitions. [2022-11-16 19:39:02,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-16 19:39:02,517 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 19:39:02,517 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 19:39:02,518 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 19:39:02,518 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 19:39:02,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 19:39:02,519 INFO L85 PathProgramCache]: Analyzing trace with hash 1652159754, now seen corresponding path program 1 times [2022-11-16 19:39:02,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 19:39:02,520 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988449472] [2022-11-16 19:39:02,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:39:02,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 19:39:02,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 19:39:03,019 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-16 19:39:03,020 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 19:39:03,020 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988449472] [2022-11-16 19:39:03,021 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1988449472] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 19:39:03,023 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 19:39:03,023 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 19:39:03,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282945390] [2022-11-16 19:39:03,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 19:39:03,025 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 19:39:03,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 19:39:03,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 19:39:03,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 19:39:03,036 INFO L87 Difference]: Start difference. First operand 47 states and 57 transitions. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-16 19:39:03,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 19:39:03,546 INFO L93 Difference]: Finished difference Result 133 states and 173 transitions. [2022-11-16 19:39:03,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 19:39:03,548 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 20 [2022-11-16 19:39:03,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 19:39:03,550 INFO L225 Difference]: With dead ends: 133 [2022-11-16 19:39:03,551 INFO L226 Difference]: Without dead ends: 92 [2022-11-16 19:39:03,552 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-11-16 19:39:03,553 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 54 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-16 19:39:03,554 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 132 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-16 19:39:03,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2022-11-16 19:39:03,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 71. [2022-11-16 19:39:03,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 45 states have (on average 1.2222222222222223) internal successors, (55), 49 states have internal predecessors, (55), 14 states have call successors, (14), 7 states have call predecessors, (14), 9 states have return successors, (20), 14 states have call predecessors, (20), 14 states have call successors, (20) [2022-11-16 19:39:03,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 89 transitions. [2022-11-16 19:39:03,594 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 89 transitions. Word has length 20 [2022-11-16 19:39:03,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 19:39:03,594 INFO L495 AbstractCegarLoop]: Abstraction has 71 states and 89 transitions. [2022-11-16 19:39:03,595 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-16 19:39:03,595 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 89 transitions. [2022-11-16 19:39:03,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-11-16 19:39:03,598 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 19:39:03,598 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 19:39:03,599 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 19:39:03,599 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 19:39:03,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 19:39:03,600 INFO L85 PathProgramCache]: Analyzing trace with hash -194427046, now seen corresponding path program 1 times [2022-11-16 19:39:03,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 19:39:03,601 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454710480] [2022-11-16 19:39:03,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:39:03,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 19:39:03,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 19:39:10,239 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 10 proven. 8 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-16 19:39:10,239 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 19:39:10,240 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454710480] [2022-11-16 19:39:10,240 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [454710480] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 19:39:10,240 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1677200186] [2022-11-16 19:39:10,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:39:10,241 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 19:39:10,241 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e850a3a-6ec8-4985-b545-202494783d6b/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 19:39:10,247 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e850a3a-6ec8-4985-b545-202494783d6b/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 19:39:10,249 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e850a3a-6ec8-4985-b545-202494783d6b/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-16 19:39:10,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 19:39:10,483 INFO L263 TraceCheckSpWp]: Trace formula consists of 456 conjuncts, 199 conjunts are in the unsatisfiable core [2022-11-16 19:39:10,498 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 19:39:10,873 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-16 19:39:10,874 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-16 19:39:11,187 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-16 19:39:11,188 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2022-11-16 19:39:11,467 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 19:39:11,487 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 19:39:13,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:39:13,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:39:13,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:39:13,672 INFO L321 Elim1Store]: treesize reduction 158, result has 24.0 percent of original size [2022-11-16 19:39:13,673 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 190 treesize of output 155 [2022-11-16 19:39:13,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:39:13,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:39:13,734 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 28 [2022-11-16 19:39:13,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:39:13,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:39:13,762 INFO L350 Elim1Store]: Elim1 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 94 treesize of output 80 [2022-11-16 19:39:13,799 INFO L321 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2022-11-16 19:39:13,799 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 20 [2022-11-16 19:39:13,840 INFO L321 Elim1Store]: treesize reduction 22, result has 47.6 percent of original size [2022-11-16 19:39:13,841 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 79 treesize of output 71 [2022-11-16 19:39:13,864 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 19:39:13,865 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 94 treesize of output 74 [2022-11-16 19:39:13,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:39:13,902 INFO L321 Elim1Store]: treesize reduction 8, result has 74.2 percent of original size [2022-11-16 19:39:13,903 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 29 treesize of output 35 [2022-11-16 19:39:13,917 INFO L350 Elim1Store]: Elim1 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 40 treesize of output 32 [2022-11-16 19:39:15,618 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 11 proven. 6 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-16 19:39:15,619 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 19:39:18,702 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1677200186] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 19:39:18,702 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1073426175] [2022-11-16 19:39:18,733 INFO L159 IcfgInterpreter]: Started Sifa with 32 locations of interest [2022-11-16 19:39:18,733 INFO L166 IcfgInterpreter]: Building call graph [2022-11-16 19:39:18,738 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-16 19:39:18,762 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-16 19:39:18,763 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-16 19:39:18,827 INFO L350 Elim1Store]: Elim1 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 8 treesize of output 7 [2022-11-16 19:39:18,838 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 19:39:19,024 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 19:39:19,032 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 19:39:19,045 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 19:39:19,048 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 19:39:19,151 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 19:39:19,162 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 19:39:19,172 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 19:39:19,176 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 19:39:19,401 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-16 19:39:19,412 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-16 19:39:19,423 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-16 19:39:19,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:39:19,554 INFO L321 Elim1Store]: treesize reduction 128, result has 32.3 percent of original size [2022-11-16 19:39:19,554 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 77 treesize of output 68 [2022-11-16 19:39:19,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:39:19,650 INFO L321 Elim1Store]: treesize reduction 147, result has 22.2 percent of original size [2022-11-16 19:39:19,650 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 77 treesize of output 49 [2022-11-16 19:39:19,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:39:19,784 INFO L321 Elim1Store]: treesize reduction 131, result has 34.8 percent of original size [2022-11-16 19:39:19,784 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 81 treesize of output 70 [2022-11-16 19:39:19,861 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 19:39:19,861 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 19 [2022-11-16 19:39:19,892 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 19:39:19,893 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 19 [2022-11-16 19:39:19,940 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 19:39:19,941 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 19 [2022-11-16 19:39:19,963 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 19:39:19,964 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 19 [2022-11-16 19:39:20,016 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 19:39:20,023 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 19:39:20,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:39:20,032 INFO L350 Elim1Store]: Elim1 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 17 treesize of output 7 [2022-11-16 19:39:20,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:39:20,041 INFO L350 Elim1Store]: Elim1 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 17 treesize of output 7 [2022-11-16 19:39:20,050 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 19:39:20,053 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 19:39:20,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:39:20,164 INFO L350 Elim1Store]: Elim1 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 17 treesize of output 7 [2022-11-16 19:39:20,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:39:20,173 INFO L350 Elim1Store]: Elim1 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 17 treesize of output 7 [2022-11-16 19:39:20,180 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 19:39:20,186 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 19:39:20,194 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 19:39:20,197 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 19:39:20,198 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 19:39:20,390 INFO L197 IcfgInterpreter]: Interpreting procedure mutex_lock with input of size 15 for LOIs [2022-11-16 19:39:20,585 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-16 19:39:20,599 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-16 19:39:20,612 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 [2022-11-16 19:39:20,696 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:39:20,705 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 19:39:20,706 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 15 [2022-11-16 19:39:20,724 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:39:20,732 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 19:39:20,733 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 15 [2022-11-16 19:39:20,801 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:39:20,809 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 19:39:20,809 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 15 [2022-11-16 19:39:20,825 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:39:20,833 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 19:39:20,833 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 15 [2022-11-16 19:39:21,009 INFO L197 IcfgInterpreter]: Interpreting procedure __ldv_list_add with input of size 57 for LOIs [2022-11-16 19:39:21,057 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_successful_malloc with input of size 30 for LOIs [2022-11-16 19:39:21,073 INFO L350 Elim1Store]: Elim1 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 8 treesize of output 7 [2022-11-16 19:39:21,086 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 19:39:21,090 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_is_in_set with input of size 23 for LOIs [2022-11-16 19:39:21,132 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-16 19:39:30,300 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '746#(and (= |mutex_lock_#in~m#1.base| |mutex_lock_~m#1.base|) (= |~#mutexes~0.base| 3) (<= |mutex_lock_~m#1.offset| 0) (<= 0 |mutex_lock_~m#1.offset|) (= |~#mutexes~0.offset| 0) (= |#NULL.offset| 0) (= |mutex_lock_#in~m#1.offset| |mutex_lock_~m#1.offset|) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-16 19:39:30,300 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-16 19:39:30,300 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-16 19:39:30,300 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 27] total 53 [2022-11-16 19:39:30,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592225535] [2022-11-16 19:39:30,301 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-16 19:39:30,301 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 53 states [2022-11-16 19:39:30,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 19:39:30,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2022-11-16 19:39:30,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=415, Invalid=6372, Unknown=19, NotChecked=0, Total=6806 [2022-11-16 19:39:30,305 INFO L87 Difference]: Start difference. First operand 71 states and 89 transitions. Second operand has 53 states, 33 states have (on average 1.6666666666666667) internal successors, (55), 36 states have internal predecessors, (55), 17 states have call successors, (18), 11 states have call predecessors, (18), 14 states have return successors, (16), 15 states have call predecessors, (16), 15 states have call successors, (16) [2022-11-16 19:39:40,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 19:39:40,811 INFO L93 Difference]: Finished difference Result 167 states and 209 transitions. [2022-11-16 19:39:40,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-11-16 19:39:40,812 INFO L78 Accepts]: Start accepts. Automaton has has 53 states, 33 states have (on average 1.6666666666666667) internal successors, (55), 36 states have internal predecessors, (55), 17 states have call successors, (18), 11 states have call predecessors, (18), 14 states have return successors, (16), 15 states have call predecessors, (16), 15 states have call successors, (16) Word has length 47 [2022-11-16 19:39:40,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 19:39:40,815 INFO L225 Difference]: With dead ends: 167 [2022-11-16 19:39:40,815 INFO L226 Difference]: Without dead ends: 100 [2022-11-16 19:39:40,822 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 53 SyntacticMatches, 3 SemanticMatches, 104 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2991 ImplicationChecksByTransitivity, 22.9s TimeCoverageRelationStatistics Valid=696, Invalid=10414, Unknown=20, NotChecked=0, Total=11130 [2022-11-16 19:39:40,823 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 155 mSDsluCounter, 662 mSDsCounter, 0 mSdLazyCounter, 1225 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 700 SdHoareTripleChecker+Invalid, 1613 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 1225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 286 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-16 19:39:40,824 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [155 Valid, 700 Invalid, 1613 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 1225 Invalid, 0 Unknown, 286 Unchecked, 1.7s Time] [2022-11-16 19:39:40,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2022-11-16 19:39:40,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 83. [2022-11-16 19:39:40,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 53 states have (on average 1.1886792452830188) internal successors, (63), 57 states have internal predecessors, (63), 15 states have call successors, (15), 9 states have call predecessors, (15), 12 states have return successors, (23), 16 states have call predecessors, (23), 15 states have call successors, (23) [2022-11-16 19:39:40,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 101 transitions. [2022-11-16 19:39:40,840 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 101 transitions. Word has length 47 [2022-11-16 19:39:40,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 19:39:40,841 INFO L495 AbstractCegarLoop]: Abstraction has 83 states and 101 transitions. [2022-11-16 19:39:40,841 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 53 states, 33 states have (on average 1.6666666666666667) internal successors, (55), 36 states have internal predecessors, (55), 17 states have call successors, (18), 11 states have call predecessors, (18), 14 states have return successors, (16), 15 states have call predecessors, (16), 15 states have call successors, (16) [2022-11-16 19:39:40,841 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 101 transitions. [2022-11-16 19:39:40,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-11-16 19:39:40,843 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 19:39:40,843 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 19:39:40,854 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e850a3a-6ec8-4985-b545-202494783d6b/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-16 19:39:41,049 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e850a3a-6ec8-4985-b545-202494783d6b/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 19:39:41,050 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 19:39:41,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 19:39:41,050 INFO L85 PathProgramCache]: Analyzing trace with hash -968639607, now seen corresponding path program 1 times [2022-11-16 19:39:41,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 19:39:41,051 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530936531] [2022-11-16 19:39:41,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:39:41,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 19:39:41,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 19:39:45,764 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 11 proven. 10 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-16 19:39:45,764 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 19:39:45,764 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1530936531] [2022-11-16 19:39:45,765 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1530936531] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 19:39:45,765 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2082916114] [2022-11-16 19:39:45,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:39:45,765 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 19:39:45,765 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e850a3a-6ec8-4985-b545-202494783d6b/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 19:39:45,766 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e850a3a-6ec8-4985-b545-202494783d6b/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 19:39:45,784 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e850a3a-6ec8-4985-b545-202494783d6b/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-16 19:39:45,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 19:39:46,003 INFO L263 TraceCheckSpWp]: Trace formula consists of 470 conjuncts, 196 conjunts are in the unsatisfiable core [2022-11-16 19:39:46,014 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 19:39:46,281 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-16 19:39:46,281 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 19:39:46,580 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-16 19:39:46,581 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-16 19:39:46,645 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 19:39:46,662 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 19:39:49,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:39:49,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:39:49,399 INFO L321 Elim1Store]: treesize reduction 84, result has 15.2 percent of original size [2022-11-16 19:39:49,399 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 259 treesize of output 198 [2022-11-16 19:39:49,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:39:49,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:39:49,417 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:39:49,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:39:49,424 INFO L350 Elim1Store]: Elim1 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 87 treesize of output 53 [2022-11-16 19:40:01,872 WARN L233 SmtUtils]: Spent 12.37s on a formula simplification. DAG size of input: 668 DAG size of output: 88 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-16 19:40:01,873 INFO L321 Elim1Store]: treesize reduction 4982, result has 3.9 percent of original size [2022-11-16 19:40:01,874 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 6 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 17 new quantified variables, introduced 81 case distinctions, treesize of input 18309 treesize of output 15826 [2022-11-16 19:40:02,870 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-16 19:40:02,871 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 11330 treesize of output 10211 [2022-11-16 19:40:03,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:40:03,530 INFO L217 Elim1Store]: Index analysis took 150 ms [2022-11-16 19:40:03,775 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 19:40:03,776 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 148 treesize of output 126 [2022-11-16 19:40:04,496 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 44 [2022-11-16 19:40:04,895 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 190 treesize of output 153 [2022-11-16 19:40:30,681 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 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 76 treesize of output 165 [2022-11-16 19:40:32,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:40:32,308 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:40:32,309 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:40:32,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:40:32,936 INFO L321 Elim1Store]: treesize reduction 234, result has 20.7 percent of original size [2022-11-16 19:40:32,937 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 6 new quantified variables, introduced 5 case distinctions, treesize of input 1655 treesize of output 1907 [2022-11-16 19:40:39,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:40:39,814 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:40:39,815 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:40:39,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:40:39,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:40:39,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:40:39,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:40:39,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:40:39,853 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:40:39,854 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:40:39,943 INFO L321 Elim1Store]: treesize reduction 241, result has 34.5 percent of original size [2022-11-16 19:40:39,943 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 2137 treesize of output 177 [2022-11-16 19:40:40,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:40:40,092 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:40:40,093 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:40:40,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:40:40,262 INFO L321 Elim1Store]: treesize reduction 98, result has 8.4 percent of original size [2022-11-16 19:40:40,263 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 6402 treesize of output 3202 [2022-11-16 19:40:41,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:40:41,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:40:41,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:40:41,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:40:41,315 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:40:41,316 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:40:41,323 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 603 treesize of output 126 [2022-11-16 19:40:42,703 INFO L350 Elim1Store]: Elim1 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 14430 treesize of output 14220 [2022-11-16 19:40:43,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:40:43,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:40:43,616 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:40:45,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:40:45,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:40:50,204 INFO L321 Elim1Store]: treesize reduction 1276, result has 6.7 percent of original size [2022-11-16 19:40:50,231 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 7 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 11 new quantified variables, introduced 18 case distinctions, treesize of input 35645127983917 treesize of output 35643517325226