./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 ae007674 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-sets/test_mutex_unlock_at_exit.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash fd310154a8f082280317f3bf1f868dbee13522304c8e13d29736e7fb8b36c7cf --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ae00767 [2021-12-27 23:51:20,664 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-27 23:51:20,665 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-27 23:51:20,703 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-27 23:51:20,704 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-27 23:51:20,707 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-27 23:51:20,708 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-27 23:51:20,712 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-27 23:51:20,714 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-27 23:51:20,717 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-27 23:51:20,718 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-27 23:51:20,721 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-27 23:51:20,721 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-27 23:51:20,723 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-27 23:51:20,724 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-27 23:51:20,727 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-27 23:51:20,727 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-27 23:51:20,728 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-27 23:51:20,730 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-27 23:51:20,738 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-27 23:51:20,740 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-27 23:51:20,741 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-27 23:51:20,741 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-27 23:51:20,743 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-27 23:51:20,748 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-27 23:51:20,748 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-27 23:51:20,748 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-27 23:51:20,750 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-27 23:51:20,750 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-27 23:51:20,751 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-27 23:51:20,751 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-27 23:51:20,752 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-27 23:51:20,753 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-27 23:51:20,753 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-27 23:51:20,754 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-27 23:51:20,754 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-27 23:51:20,755 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-27 23:51:20,755 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-27 23:51:20,756 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-27 23:51:20,757 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-27 23:51:20,757 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-27 23:51:20,760 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-27 23:51:20,789 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-27 23:51:20,789 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-27 23:51:20,790 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-27 23:51:20,790 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-27 23:51:20,791 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-27 23:51:20,791 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-27 23:51:20,792 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-27 23:51:20,793 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-27 23:51:20,793 INFO L138 SettingsManager]: * Use SBE=true [2021-12-27 23:51:20,793 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-27 23:51:20,793 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-27 23:51:20,794 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-27 23:51:20,794 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-27 23:51:20,794 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-27 23:51:20,794 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-27 23:51:20,794 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-27 23:51:20,794 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-27 23:51:20,795 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-27 23:51:20,795 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-27 23:51:20,795 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-27 23:51:20,795 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-27 23:51:20,795 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-27 23:51:20,795 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-27 23:51:20,796 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-27 23:51:20,796 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-27 23:51:20,796 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-27 23:51:20,796 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-27 23:51:20,796 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-27 23:51:20,796 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-27 23:51:20,797 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-27 23:51:20,797 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-27 23:51:20,797 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-27 23:51:20,797 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-27 23:51:20,797 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fd310154a8f082280317f3bf1f868dbee13522304c8e13d29736e7fb8b36c7cf [2021-12-27 23:51:21,087 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-27 23:51:21,106 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-27 23:51:21,111 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-27 23:51:21,112 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-27 23:51:21,113 INFO L275 PluginConnector]: CDTParser initialized [2021-12-27 23:51:21,114 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-sets/test_mutex_unlock_at_exit.i [2021-12-27 23:51:21,165 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/777d73751/494b53be85244eae9c7d676a2bd5e59f/FLAG343efe305 [2021-12-27 23:51:21,592 INFO L306 CDTParser]: Found 1 translation units. [2021-12-27 23:51:21,599 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-sets/test_mutex_unlock_at_exit.i [2021-12-27 23:51:21,613 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/777d73751/494b53be85244eae9c7d676a2bd5e59f/FLAG343efe305 [2021-12-27 23:51:21,627 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/777d73751/494b53be85244eae9c7d676a2bd5e59f [2021-12-27 23:51:21,629 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-27 23:51:21,632 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-27 23:51:21,635 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-27 23:51:21,635 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-27 23:51:21,638 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-27 23:51:21,639 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 11:51:21" (1/1) ... [2021-12-27 23:51:21,639 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62abb936 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 11:51:21, skipping insertion in model container [2021-12-27 23:51:21,640 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 11:51:21" (1/1) ... [2021-12-27 23:51:21,646 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-27 23:51:21,689 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-27 23:51:21,964 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-sets/test_mutex_unlock_at_exit.i[25842,25855] [2021-12-27 23:51:21,970 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-sets/test_mutex_unlock_at_exit.i[25967,25980] [2021-12-27 23:51:21,972 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-sets/test_mutex_unlock_at_exit.i[26082,26095] [2021-12-27 23:51:21,976 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-27 23:51:21,984 INFO L203 MainTranslator]: Completed pre-run [2021-12-27 23:51:22,037 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-sets/test_mutex_unlock_at_exit.i[25842,25855] [2021-12-27 23:51:22,038 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-sets/test_mutex_unlock_at_exit.i[25967,25980] [2021-12-27 23:51:22,038 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-sets/test_mutex_unlock_at_exit.i[26082,26095] [2021-12-27 23:51:22,040 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-27 23:51:22,064 INFO L208 MainTranslator]: Completed translation [2021-12-27 23:51:22,065 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 11:51:22 WrapperNode [2021-12-27 23:51:22,065 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-27 23:51:22,065 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-27 23:51:22,065 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-27 23:51:22,066 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-27 23:51:22,070 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 11:51:22" (1/1) ... [2021-12-27 23:51:22,079 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 11:51:22" (1/1) ... [2021-12-27 23:51:22,096 INFO L137 Inliner]: procedures = 139, calls = 56, calls flagged for inlining = 15, calls inlined = 14, statements flattened = 128 [2021-12-27 23:51:22,096 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-27 23:51:22,097 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-27 23:51:22,097 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-27 23:51:22,097 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-27 23:51:22,102 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 11:51:22" (1/1) ... [2021-12-27 23:51:22,103 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 11:51:22" (1/1) ... [2021-12-27 23:51:22,109 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 11:51:22" (1/1) ... [2021-12-27 23:51:22,110 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 11:51:22" (1/1) ... [2021-12-27 23:51:22,122 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 11:51:22" (1/1) ... [2021-12-27 23:51:22,125 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 11:51:22" (1/1) ... [2021-12-27 23:51:22,130 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 11:51:22" (1/1) ... [2021-12-27 23:51:22,137 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-27 23:51:22,141 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-27 23:51:22,141 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-27 23:51:22,141 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-27 23:51:22,142 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 11:51:22" (1/1) ... [2021-12-27 23:51:22,147 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-27 23:51:22,157 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-27 23:51:22,166 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-27 23:51:22,169 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-27 23:51:22,202 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2021-12-27 23:51:22,202 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2021-12-27 23:51:22,204 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-27 23:51:22,204 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2021-12-27 23:51:22,204 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2021-12-27 23:51:22,204 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-27 23:51:22,204 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-27 23:51:22,204 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_in_set [2021-12-27 23:51:22,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_in_set [2021-12-27 23:51:22,205 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-27 23:51:22,205 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-27 23:51:22,205 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-27 23:51:22,205 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-27 23:51:22,205 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_successful_malloc [2021-12-27 23:51:22,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_successful_malloc [2021-12-27 23:51:22,205 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-27 23:51:22,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-27 23:51:22,342 INFO L234 CfgBuilder]: Building ICFG [2021-12-27 23:51:22,344 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-27 23:51:22,565 INFO L275 CfgBuilder]: Performing block encoding [2021-12-27 23:51:22,571 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-27 23:51:22,571 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-27 23:51:22,573 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 11:51:22 BoogieIcfgContainer [2021-12-27 23:51:22,573 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-27 23:51:22,574 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-27 23:51:22,575 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-27 23:51:22,576 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-27 23:51:22,577 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.12 11:51:21" (1/3) ... [2021-12-27 23:51:22,577 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71402d62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 11:51:22, skipping insertion in model container [2021-12-27 23:51:22,577 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 11:51:22" (2/3) ... [2021-12-27 23:51:22,578 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71402d62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 11:51:22, skipping insertion in model container [2021-12-27 23:51:22,578 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 11:51:22" (3/3) ... [2021-12-27 23:51:22,579 INFO L111 eAbstractionObserver]: Analyzing ICFG test_mutex_unlock_at_exit.i [2021-12-27 23:51:22,583 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-27 23:51:22,583 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-12-27 23:51:22,610 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-27 23:51:22,615 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, 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, mLoopAccelerationTechnique=FAST_UPR [2021-12-27 23:51:22,615 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-12-27 23:51:22,638 INFO L276 IsEmpty]: Start isEmpty. Operand has 66 states, 49 states have (on average 1.2857142857142858) internal successors, (63), 52 states have internal predecessors, (63), 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) [2021-12-27 23:51:22,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-12-27 23:51:22,642 INFO L506 BasicCegarLoop]: Found error trace [2021-12-27 23:51:22,642 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-27 23:51:22,643 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-27 23:51:22,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-27 23:51:22,662 INFO L85 PathProgramCache]: Analyzing trace with hash -1577806477, now seen corresponding path program 1 times [2021-12-27 23:51:22,668 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-27 23:51:22,669 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635642046] [2021-12-27 23:51:22,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-27 23:51:22,669 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-27 23:51:22,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-27 23:51:22,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-27 23:51:22,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-27 23:51:22,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-27 23:51:22,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-27 23:51:22,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-27 23:51:22,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-27 23:51:22,852 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-12-27 23:51:22,852 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-27 23:51:22,853 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1635642046] [2021-12-27 23:51:22,853 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1635642046] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-27 23:51:22,853 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-27 23:51:22,853 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-27 23:51:22,854 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857022230] [2021-12-27 23:51:22,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-27 23:51:22,857 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-27 23:51:22,858 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-27 23:51:22,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-27 23:51:22,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-27 23:51:22,876 INFO L87 Difference]: Start difference. First operand has 66 states, 49 states have (on average 1.2857142857142858) internal successors, (63), 52 states have internal predecessors, (63), 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 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 2 states have internal predecessors, (17), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2021-12-27 23:51:22,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-27 23:51:22,945 INFO L93 Difference]: Finished difference Result 131 states and 169 transitions. [2021-12-27 23:51:22,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-27 23:51:22,949 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 2 states have internal predecessors, (17), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 28 [2021-12-27 23:51:22,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-27 23:51:22,956 INFO L225 Difference]: With dead ends: 131 [2021-12-27 23:51:22,956 INFO L226 Difference]: Without dead ends: 64 [2021-12-27 23:51:22,959 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-27 23:51:22,964 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 21 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-27 23:51:22,965 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [23 Valid, 109 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-27 23:51:22,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2021-12-27 23:51:22,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 61. [2021-12-27 23:51:22,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 45 states have (on average 1.1555555555555554) internal successors, (52), 47 states have internal predecessors, (52), 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) [2021-12-27 23:51:23,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 70 transitions. [2021-12-27 23:51:23,003 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 70 transitions. Word has length 28 [2021-12-27 23:51:23,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-27 23:51:23,003 INFO L470 AbstractCegarLoop]: Abstraction has 61 states and 70 transitions. [2021-12-27 23:51:23,003 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 2 states have internal predecessors, (17), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2021-12-27 23:51:23,003 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 70 transitions. [2021-12-27 23:51:23,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-12-27 23:51:23,005 INFO L506 BasicCegarLoop]: Found error trace [2021-12-27 23:51:23,005 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-27 23:51:23,005 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-27 23:51:23,006 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-27 23:51:23,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-27 23:51:23,007 INFO L85 PathProgramCache]: Analyzing trace with hash -109345869, now seen corresponding path program 1 times [2021-12-27 23:51:23,007 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-27 23:51:23,007 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440956189] [2021-12-27 23:51:23,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-27 23:51:23,008 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-27 23:51:23,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-27 23:51:23,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-27 23:51:23,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-27 23:51:23,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-27 23:51:23,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-27 23:51:23,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-27 23:51:23,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-27 23:51:23,161 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-12-27 23:51:23,162 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-27 23:51:23,162 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [440956189] [2021-12-27 23:51:23,163 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [440956189] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-27 23:51:23,163 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-27 23:51:23,164 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-27 23:51:23,164 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662524838] [2021-12-27 23:51:23,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-27 23:51:23,166 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-27 23:51:23,166 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-27 23:51:23,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-27 23:51:23,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-27 23:51:23,168 INFO L87 Difference]: Start difference. First operand 61 states and 70 transitions. Second operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 4 states have internal predecessors, (17), 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) [2021-12-27 23:51:23,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-27 23:51:23,255 INFO L93 Difference]: Finished difference Result 70 states and 82 transitions. [2021-12-27 23:51:23,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-27 23:51:23,255 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 4 states have internal predecessors, (17), 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 28 [2021-12-27 23:51:23,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-27 23:51:23,257 INFO L225 Difference]: With dead ends: 70 [2021-12-27 23:51:23,257 INFO L226 Difference]: Without dead ends: 68 [2021-12-27 23:51:23,257 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-12-27 23:51:23,258 INFO L933 BasicCegarLoop]: 65 mSDtfsCounter, 23 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-27 23:51:23,258 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [27 Valid, 202 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-27 23:51:23,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2021-12-27 23:51:23,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 65. [2021-12-27 23:51:23,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 48 states have (on average 1.1458333333333333) internal successors, (55), 50 states have internal predecessors, (55), 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) [2021-12-27 23:51:23,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 76 transitions. [2021-12-27 23:51:23,265 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 76 transitions. Word has length 28 [2021-12-27 23:51:23,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-27 23:51:23,266 INFO L470 AbstractCegarLoop]: Abstraction has 65 states and 76 transitions. [2021-12-27 23:51:23,266 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 4 states have internal predecessors, (17), 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) [2021-12-27 23:51:23,266 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 76 transitions. [2021-12-27 23:51:23,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-12-27 23:51:23,267 INFO L506 BasicCegarLoop]: Found error trace [2021-12-27 23:51:23,267 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-27 23:51:23,267 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-27 23:51:23,267 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-27 23:51:23,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-27 23:51:23,268 INFO L85 PathProgramCache]: Analyzing trace with hash 1465257436, now seen corresponding path program 1 times [2021-12-27 23:51:23,268 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-27 23:51:23,268 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102014449] [2021-12-27 23:51:23,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-27 23:51:23,268 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-27 23:51:23,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-27 23:51:23,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-27 23:51:23,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-27 23:51:23,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-27 23:51:23,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-27 23:51:23,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-27 23:51:23,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-27 23:51:23,381 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-12-27 23:51:23,381 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-27 23:51:23,381 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2102014449] [2021-12-27 23:51:23,381 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2102014449] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-27 23:51:23,381 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-27 23:51:23,382 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-27 23:51:23,382 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553744786] [2021-12-27 23:51:23,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-27 23:51:23,382 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-27 23:51:23,382 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-27 23:51:23,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-27 23:51:23,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-27 23:51:23,383 INFO L87 Difference]: Start difference. First operand 65 states and 76 transitions. Second operand has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 5 states have internal predecessors, (17), 1 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-12-27 23:51:23,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-27 23:51:23,715 INFO L93 Difference]: Finished difference Result 186 states and 229 transitions. [2021-12-27 23:51:23,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-27 23:51:23,716 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 5 states have internal predecessors, (17), 1 states have call successors, (4), 3 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 28 [2021-12-27 23:51:23,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-27 23:51:23,717 INFO L225 Difference]: With dead ends: 186 [2021-12-27 23:51:23,717 INFO L226 Difference]: Without dead ends: 129 [2021-12-27 23:51:23,718 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2021-12-27 23:51:23,719 INFO L933 BasicCegarLoop]: 77 mSDtfsCounter, 120 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 255 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-27 23:51:23,719 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [125 Valid, 255 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-27 23:51:23,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2021-12-27 23:51:23,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 99. [2021-12-27 23:51:23,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 72 states have (on average 1.1527777777777777) internal successors, (83), 77 states have internal predecessors, (83), 14 states have call successors, (14), 7 states have call predecessors, (14), 10 states have return successors, (21), 14 states have call predecessors, (21), 14 states have call successors, (21) [2021-12-27 23:51:23,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 118 transitions. [2021-12-27 23:51:23,737 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 118 transitions. Word has length 28 [2021-12-27 23:51:23,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-27 23:51:23,737 INFO L470 AbstractCegarLoop]: Abstraction has 99 states and 118 transitions. [2021-12-27 23:51:23,737 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 5 states have internal predecessors, (17), 1 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-12-27 23:51:23,737 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 118 transitions. [2021-12-27 23:51:23,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-12-27 23:51:23,739 INFO L506 BasicCegarLoop]: Found error trace [2021-12-27 23:51:23,739 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 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, 1, 1, 1, 1, 1] [2021-12-27 23:51:23,739 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-27 23:51:23,739 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-27 23:51:23,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-27 23:51:23,740 INFO L85 PathProgramCache]: Analyzing trace with hash 1566335676, now seen corresponding path program 1 times [2021-12-27 23:51:23,740 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-27 23:51:23,740 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080047812] [2021-12-27 23:51:23,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-27 23:51:23,740 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-27 23:51:23,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-27 23:51:24,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-27 23:51:24,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-27 23:51:24,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-27 23:51:24,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-27 23:51:24,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-27 23:51:24,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-27 23:51:24,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-27 23:51:24,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-27 23:51:24,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-27 23:51:24,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-27 23:51:24,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-27 23:51:24,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-27 23:51:24,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-27 23:51:24,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-27 23:51:24,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-27 23:51:24,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-27 23:51:24,892 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 5 proven. 21 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-12-27 23:51:24,893 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-27 23:51:24,893 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080047812] [2021-12-27 23:51:24,893 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1080047812] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-27 23:51:24,893 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [813267651] [2021-12-27 23:51:24,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-27 23:51:24,894 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-27 23:51:24,894 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-27 23:51:24,895 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-27 23:51:24,927 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-27 23:51:25,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-27 23:51:25,040 INFO L263 TraceCheckSpWp]: Trace formula consists of 464 conjuncts, 218 conjunts are in the unsatisfiable core [2021-12-27 23:51:25,049 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-27 23:51:25,459 INFO L353 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-12-27 23:51:25,460 INFO L387 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 [2021-12-27 23:51:25,791 INFO L353 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-12-27 23:51:25,791 INFO L387 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 4 case distinctions, treesize of input 22 treesize of output 33 [2021-12-27 23:51:25,958 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-12-27 23:51:25,970 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-12-27 23:51:29,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-27 23:51:29,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-27 23:51:29,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-27 23:51:29,851 INFO L353 Elim1Store]: treesize reduction 168, result has 22.9 percent of original size [2021-12-27 23:51:29,852 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 8 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 228 treesize of output 166 [2021-12-27 23:51:29,869 INFO L353 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-12-27 23:51:29,871 INFO L387 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 339 treesize of output 262 [2021-12-27 23:51:29,941 INFO L353 Elim1Store]: treesize reduction 30, result has 47.4 percent of original size [2021-12-27 23:51:29,942 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 230 treesize of output 176 [2021-12-27 23:51:29,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-27 23:51:30,004 INFO L353 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2021-12-27 23:51:30,004 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 125 treesize of output 98 [2021-12-27 23:51:30,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-27 23:51:30,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-27 23:51:30,024 INFO L387 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 76 treesize of output 58 [2021-12-27 23:51:30,041 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 36 [2021-12-27 23:51:30,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-27 23:51:30,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-27 23:51:30,057 INFO L387 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 46 treesize of output 34 [2021-12-27 23:51:30,069 INFO L387 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 37 treesize of output 40 [2021-12-27 23:51:30,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-27 23:51:30,079 INFO L387 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 0 case distinctions, treesize of input 92 treesize of output 92 [2021-12-27 23:51:30,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-27 23:51:30,102 INFO L353 Elim1Store]: treesize reduction 8, result has 74.2 percent of original size [2021-12-27 23:51:30,102 INFO L387 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 2 case distinctions, treesize of input 29 treesize of output 35 [2021-12-27 23:51:30,135 INFO L353 Elim1Store]: treesize reduction 34, result has 47.7 percent of original size [2021-12-27 23:51:30,136 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 29 treesize of output 52 [2021-12-27 23:51:30,152 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2021-12-27 23:51:30,161 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 36 [2021-12-27 23:51:30,173 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-27 23:51:30,173 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 29 [2021-12-27 23:51:30,206 INFO L387 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 121 treesize of output 63 [2021-12-27 23:51:30,212 INFO L387 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 9 [2021-12-27 23:51:34,014 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 11 proven. 16 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-12-27 23:51:34,014 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-27 23:51:36,071 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_mutex_lock_ldv_list_add_~new#1.base_8| Int) (v_ArrVal_313 Int) (v___ldv_list_add_~prev.offset_8 Int) (v_ArrVal_309 (Array Int Int)) (v_ArrVal_310 (Array Int Int)) (v___ldv_list_add_~next.offset_8 Int) (v_ArrVal_314 Int)) (let ((.cse7 (store |c_#memory_$Pointer$.base| |v_mutex_lock_ldv_list_add_~new#1.base_8| (store (select |c_#memory_$Pointer$.base| |v_mutex_lock_ldv_list_add_~new#1.base_8|) 0 |c_ULTIMATE.start_foo_~m1~0#1.base|)))) (let ((.cse1 (select (select .cse7 |c_~#mutexes~0.base|) |c_~#mutexes~0.offset|)) (.cse6 (+ 4 v___ldv_list_add_~next.offset_8))) (let ((.cse0 (store .cse7 .cse1 (store (select .cse7 .cse1) .cse6 |v_mutex_lock_ldv_list_add_~new#1.base_8|)))) (let ((.cse2 (store (select (store .cse0 |v_mutex_lock_ldv_list_add_~new#1.base_8| v_ArrVal_309) |c_~#mutexes~0.base|) v___ldv_list_add_~prev.offset_8 |v_mutex_lock_ldv_list_add_~new#1.base_8|))) (let ((.cse4 (select (store (select (let ((.cse5 (store |c_#memory_$Pointer$.offset| |v_mutex_lock_ldv_list_add_~new#1.base_8| (store (select |c_#memory_$Pointer$.offset| |v_mutex_lock_ldv_list_add_~new#1.base_8|) 0 |c_ULTIMATE.start_foo_~m1~0#1.offset|)))) (store (store .cse5 .cse1 (store (select .cse5 .cse1) .cse6 4)) |v_mutex_lock_ldv_list_add_~new#1.base_8| (store (store (select (store .cse5 .cse1 v_ArrVal_310) |v_mutex_lock_ldv_list_add_~new#1.base_8|) 4 v_ArrVal_314) 8 v_ArrVal_313))) |c_~#mutexes~0.base|) v___ldv_list_add_~prev.offset_8 4) |c_~#mutexes~0.offset|)) (.cse3 (select .cse2 |c_~#mutexes~0.offset|))) (or (not (= (select |c_#valid| |v_mutex_lock_ldv_list_add_~new#1.base_8|) 0)) (not (= (select (select (store (store .cse0 |v_mutex_lock_ldv_list_add_~new#1.base_8| (store (store (select .cse0 |v_mutex_lock_ldv_list_add_~new#1.base_8|) 4 .cse1) 8 |c_~#mutexes~0.base|)) |c_~#mutexes~0.base| .cse2) .cse3) (+ .cse4 (- 4))) |c_ULTIMATE.start_foo_~m2~0#1.base|)) (and (= .cse4 |c_~#mutexes~0.offset|) (= .cse3 |c_~#mutexes~0.base|))))))))) is different from false [2021-12-27 23:51:36,073 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [813267651] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-27 23:51:36,073 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-27 23:51:36,073 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 31] total 61 [2021-12-27 23:51:36,073 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919006822] [2021-12-27 23:51:36,074 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-27 23:51:36,074 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 61 states [2021-12-27 23:51:36,074 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-27 23:51:36,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 61 interpolants. [2021-12-27 23:51:36,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=265, Invalid=4258, Unknown=37, NotChecked=132, Total=4692 [2021-12-27 23:51:36,076 INFO L87 Difference]: Start difference. First operand 99 states and 118 transitions. Second operand has 61 states, 50 states have (on average 1.74) internal successors, (87), 43 states have internal predecessors, (87), 16 states have call successors, (18), 12 states have call predecessors, (18), 15 states have return successors, (16), 15 states have call predecessors, (16), 14 states have call successors, (16) [2021-12-27 23:51:41,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-27 23:51:41,411 INFO L93 Difference]: Finished difference Result 212 states and 245 transitions. [2021-12-27 23:51:41,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-12-27 23:51:41,412 INFO L78 Accepts]: Start accepts. Automaton has has 61 states, 50 states have (on average 1.74) internal successors, (87), 43 states have internal predecessors, (87), 16 states have call successors, (18), 12 states have call predecessors, (18), 15 states have return successors, (16), 15 states have call predecessors, (16), 14 states have call successors, (16) Word has length 63 [2021-12-27 23:51:41,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-27 23:51:41,413 INFO L225 Difference]: With dead ends: 212 [2021-12-27 23:51:41,413 INFO L226 Difference]: Without dead ends: 155 [2021-12-27 23:51:41,416 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 1787 ImplicationChecksByTransitivity, 9.0s TimeCoverageRelationStatistics Valid=606, Invalid=8268, Unknown=60, NotChecked=186, Total=9120 [2021-12-27 23:51:41,417 INFO L933 BasicCegarLoop]: 69 mSDtfsCounter, 260 mSDsluCounter, 1862 mSDsCounter, 0 mSdLazyCounter, 1975 mSolverCounterSat, 145 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 261 SdHoareTripleChecker+Valid, 1931 SdHoareTripleChecker+Invalid, 2753 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 145 IncrementalHoareTripleChecker+Valid, 1975 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 633 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-12-27 23:51:41,417 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [261 Valid, 1931 Invalid, 2753 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [145 Valid, 1975 Invalid, 0 Unknown, 633 Unchecked, 1.2s Time] [2021-12-27 23:51:41,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2021-12-27 23:51:41,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 117. [2021-12-27 23:51:41,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 86 states have (on average 1.1627906976744187) internal successors, (100), 91 states have internal predecessors, (100), 15 states have call successors, (15), 9 states have call predecessors, (15), 13 states have return successors, (24), 16 states have call predecessors, (24), 15 states have call successors, (24) [2021-12-27 23:51:41,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 139 transitions. [2021-12-27 23:51:41,428 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 139 transitions. Word has length 63 [2021-12-27 23:51:41,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-27 23:51:41,429 INFO L470 AbstractCegarLoop]: Abstraction has 117 states and 139 transitions. [2021-12-27 23:51:41,429 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 61 states, 50 states have (on average 1.74) internal successors, (87), 43 states have internal predecessors, (87), 16 states have call successors, (18), 12 states have call predecessors, (18), 15 states have return successors, (16), 15 states have call predecessors, (16), 14 states have call successors, (16) [2021-12-27 23:51:41,429 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 139 transitions. [2021-12-27 23:51:41,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-12-27 23:51:41,431 INFO L506 BasicCegarLoop]: Found error trace [2021-12-27 23:51:41,431 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-27 23:51:41,451 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-27 23:51:41,649 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-27 23:51:41,649 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-27 23:51:41,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-27 23:51:41,649 INFO L85 PathProgramCache]: Analyzing trace with hash -1979205398, now seen corresponding path program 1 times [2021-12-27 23:51:41,650 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-27 23:51:41,650 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97333692] [2021-12-27 23:51:41,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-27 23:51:41,650 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-27 23:51:41,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-27 23:51:41,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-27 23:51:41,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-27 23:51:41,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-27 23:51:41,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-27 23:51:41,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-27 23:51:41,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-27 23:51:41,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-27 23:51:41,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-27 23:51:41,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-27 23:51:41,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-27 23:51:41,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-12-27 23:51:41,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-27 23:51:41,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-27 23:51:41,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-27 23:51:41,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-27 23:51:41,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-27 23:51:41,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-27 23:51:41,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-27 23:51:41,786 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 2 proven. 11 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2021-12-27 23:51:41,786 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-27 23:51:41,787 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97333692] [2021-12-27 23:51:41,787 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [97333692] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-27 23:51:41,789 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [689940197] [2021-12-27 23:51:41,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-27 23:51:41,789 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-27 23:51:41,789 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-27 23:51:41,790 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-27 23:51:41,825 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-27 23:51:41,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-27 23:51:41,894 INFO L263 TraceCheckSpWp]: Trace formula consists of 391 conjuncts, 5 conjunts are in the unsatisfiable core [2021-12-27 23:51:41,899 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-27 23:51:42,014 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2021-12-27 23:51:42,014 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-27 23:51:42,014 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [689940197] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-27 23:51:42,014 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-27 23:51:42,014 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 6 [2021-12-27 23:51:42,015 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691243061] [2021-12-27 23:51:42,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-27 23:51:42,016 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-27 23:51:42,016 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-27 23:51:42,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-27 23:51:42,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-27 23:51:42,017 INFO L87 Difference]: Start difference. First operand 117 states and 139 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2021-12-27 23:51:42,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-27 23:51:42,032 INFO L93 Difference]: Finished difference Result 202 states and 240 transitions. [2021-12-27 23:51:42,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-27 23:51:42,032 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) Word has length 71 [2021-12-27 23:51:42,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-27 23:51:42,037 INFO L225 Difference]: With dead ends: 202 [2021-12-27 23:51:42,038 INFO L226 Difference]: Without dead ends: 125 [2021-12-27 23:51:42,040 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 87 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-27 23:51:42,042 INFO L933 BasicCegarLoop]: 68 mSDtfsCounter, 0 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-27 23:51:42,042 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 200 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-27 23:51:42,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2021-12-27 23:51:42,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2021-12-27 23:51:42,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 92 states have (on average 1.1521739130434783) internal successors, (106), 97 states have internal predecessors, (106), 15 states have call successors, (15), 9 states have call predecessors, (15), 15 states have return successors, (27), 18 states have call predecessors, (27), 15 states have call successors, (27) [2021-12-27 23:51:42,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 148 transitions. [2021-12-27 23:51:42,059 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 148 transitions. Word has length 71 [2021-12-27 23:51:42,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-27 23:51:42,059 INFO L470 AbstractCegarLoop]: Abstraction has 125 states and 148 transitions. [2021-12-27 23:51:42,059 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2021-12-27 23:51:42,059 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 148 transitions. [2021-12-27 23:51:42,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-12-27 23:51:42,061 INFO L506 BasicCegarLoop]: Found error trace [2021-12-27 23:51:42,061 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-27 23:51:42,080 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-12-27 23:51:42,276 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-27 23:51:42,277 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-27 23:51:42,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-27 23:51:42,277 INFO L85 PathProgramCache]: Analyzing trace with hash 2093878652, now seen corresponding path program 1 times [2021-12-27 23:51:42,277 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-27 23:51:42,277 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436450301] [2021-12-27 23:51:42,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-27 23:51:42,277 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-27 23:51:42,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-27 23:51:42,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-27 23:51:42,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-27 23:51:42,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-27 23:51:42,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-27 23:51:42,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-27 23:51:42,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-27 23:51:42,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-27 23:51:42,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-27 23:51:42,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-27 23:51:42,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-27 23:51:42,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-12-27 23:51:42,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-27 23:51:42,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-27 23:51:42,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-27 23:51:42,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-27 23:51:42,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-27 23:51:42,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-27 23:51:42,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-27 23:51:42,505 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 9 proven. 24 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-12-27 23:51:42,505 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-27 23:51:42,505 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436450301] [2021-12-27 23:51:42,506 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1436450301] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-27 23:51:42,506 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1697642403] [2021-12-27 23:51:42,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-27 23:51:42,506 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-27 23:51:42,506 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-27 23:51:42,507 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-27 23:51:42,508 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-27 23:51:42,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-27 23:51:42,607 INFO L263 TraceCheckSpWp]: Trace formula consists of 401 conjuncts, 39 conjunts are in the unsatisfiable core [2021-12-27 23:51:42,615 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-27 23:51:42,755 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-12-27 23:51:42,760 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-12-27 23:51:43,060 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-12-27 23:51:43,061 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-27 23:51:43,061 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1697642403] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-27 23:51:43,061 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-27 23:51:43,061 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [13] total 20 [2021-12-27 23:51:43,061 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235061440] [2021-12-27 23:51:43,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-27 23:51:43,062 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-27 23:51:43,062 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-27 23:51:43,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-27 23:51:43,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=323, Unknown=0, NotChecked=0, Total=380 [2021-12-27 23:51:43,063 INFO L87 Difference]: Start difference. First operand 125 states and 148 transitions. Second operand has 9 states, 8 states have (on average 5.375) internal successors, (43), 8 states have internal predecessors, (43), 4 states have call successors, (9), 4 states have call predecessors, (9), 5 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2021-12-27 23:51:43,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-27 23:51:43,514 INFO L93 Difference]: Finished difference Result 269 states and 316 transitions. [2021-12-27 23:51:43,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-12-27 23:51:43,528 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.375) internal successors, (43), 8 states have internal predecessors, (43), 4 states have call successors, (9), 4 states have call predecessors, (9), 5 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) Word has length 71 [2021-12-27 23:51:43,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-27 23:51:43,532 INFO L225 Difference]: With dead ends: 269 [2021-12-27 23:51:43,532 INFO L226 Difference]: Without dead ends: 140 [2021-12-27 23:51:43,534 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 153 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=178, Invalid=752, Unknown=0, NotChecked=0, Total=930 [2021-12-27 23:51:43,536 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 155 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 291 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-27 23:51:43,537 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [161 Valid, 216 Invalid, 342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 291 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-27 23:51:43,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2021-12-27 23:51:43,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 123. [2021-12-27 23:51:43,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 92 states have (on average 1.1304347826086956) internal successors, (104), 96 states have internal predecessors, (104), 14 states have call successors, (14), 10 states have call predecessors, (14), 14 states have return successors, (23), 16 states have call predecessors, (23), 14 states have call successors, (23) [2021-12-27 23:51:43,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 141 transitions. [2021-12-27 23:51:43,559 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 141 transitions. Word has length 71 [2021-12-27 23:51:43,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-27 23:51:43,560 INFO L470 AbstractCegarLoop]: Abstraction has 123 states and 141 transitions. [2021-12-27 23:51:43,560 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.375) internal successors, (43), 8 states have internal predecessors, (43), 4 states have call successors, (9), 4 states have call predecessors, (9), 5 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2021-12-27 23:51:43,560 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 141 transitions. [2021-12-27 23:51:43,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-12-27 23:51:43,563 INFO L506 BasicCegarLoop]: Found error trace [2021-12-27 23:51:43,563 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-27 23:51:43,588 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-12-27 23:51:43,763 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-27 23:51:43,764 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-27 23:51:43,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-27 23:51:43,764 INFO L85 PathProgramCache]: Analyzing trace with hash -818250910, now seen corresponding path program 1 times [2021-12-27 23:51:43,764 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-27 23:51:43,764 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078872217] [2021-12-27 23:51:43,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-27 23:51:43,765 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-27 23:51:43,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-27 23:51:43,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-27 23:51:43,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-27 23:51:43,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-27 23:51:43,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-27 23:51:43,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-27 23:51:43,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-27 23:51:44,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-27 23:51:44,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-27 23:51:44,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-27 23:51:44,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-27 23:51:44,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-27 23:51:44,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-27 23:51:44,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-27 23:51:44,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-27 23:51:44,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-27 23:51:44,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-27 23:51:44,496 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 7 proven. 23 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-12-27 23:51:44,497 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-27 23:51:44,497 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078872217] [2021-12-27 23:51:44,497 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1078872217] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-27 23:51:44,497 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1882050703] [2021-12-27 23:51:44,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-27 23:51:44,497 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-27 23:51:44,497 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-27 23:51:44,498 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-27 23:51:44,499 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-27 23:51:44,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-27 23:51:44,646 INFO L263 TraceCheckSpWp]: Trace formula consists of 478 conjuncts, 192 conjunts are in the unsatisfiable core [2021-12-27 23:51:44,653 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-27 23:51:44,908 INFO L353 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-12-27 23:51:44,909 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-12-27 23:51:45,160 INFO L353 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-12-27 23:51:45,161 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-12-27 23:51:45,191 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-12-27 23:51:45,198 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-12-27 23:51:45,916 INFO L353 Elim1Store]: treesize reduction 59, result has 35.2 percent of original size [2021-12-27 23:51:45,917 INFO L387 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 2 new quantified variables, introduced 3 case distinctions, treesize of input 50 treesize of output 55 [2021-12-27 23:51:45,930 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-27 23:51:45,930 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 58 treesize of output 76 [2021-12-27 23:51:45,934 INFO L387 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 26 treesize of output 29 [2021-12-27 23:51:45,940 INFO L387 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 27 treesize of output 24 [2021-12-27 23:51:45,960 INFO L387 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 [2021-12-27 23:51:46,014 INFO L387 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 [2021-12-27 23:51:46,026 INFO L387 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 [2021-12-27 23:51:46,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-27 23:51:46,054 INFO L387 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 13 treesize of output 17 [2021-12-27 23:51:46,093 INFO L353 Elim1Store]: treesize reduction 79, result has 26.9 percent of original size [2021-12-27 23:51:46,093 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 3 case distinctions, treesize of input 69 treesize of output 94 [2021-12-27 23:51:46,106 INFO L353 Elim1Store]: treesize reduction 4, result has 60.0 percent of original size [2021-12-27 23:51:46,106 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 17 [2021-12-27 23:51:46,117 INFO L353 Elim1Store]: treesize reduction 4, result has 60.0 percent of original size [2021-12-27 23:51:46,117 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 17 [2021-12-27 23:51:46,147 INFO L387 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 [2021-12-27 23:51:46,154 INFO L387 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 [2021-12-27 23:51:46,170 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-12-27 23:51:46,174 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-12-27 23:51:46,211 INFO L353 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2021-12-27 23:51:46,211 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 7 [2021-12-27 23:51:46,219 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-12-27 23:51:46,248 INFO L353 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2021-12-27 23:51:46,249 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 7 [2021-12-27 23:51:46,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-27 23:51:46,256 INFO L387 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 [2021-12-27 23:51:46,280 INFO L353 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2021-12-27 23:51:46,281 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 7 [2021-12-27 23:51:46,292 INFO L353 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2021-12-27 23:51:46,292 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 7 [2021-12-27 23:51:46,316 INFO L353 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2021-12-27 23:51:46,316 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 16 [2021-12-27 23:51:46,331 INFO L353 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2021-12-27 23:51:46,331 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 16 [2021-12-27 23:51:46,361 INFO L353 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2021-12-27 23:51:46,362 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 7 [2021-12-27 23:51:46,386 INFO L353 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2021-12-27 23:51:46,386 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 7 [2021-12-27 23:51:47,265 INFO L387 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 51 treesize of output 49 [2021-12-27 23:51:47,267 INFO L387 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 49 treesize of output 52 [2021-12-27 23:51:47,994 INFO L387 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 51 treesize of output 49 [2021-12-27 23:51:47,996 INFO L387 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 49 treesize of output 52 [2021-12-27 23:51:48,630 INFO L387 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 51 treesize of output 49 [2021-12-27 23:51:48,633 INFO L387 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 49 treesize of output 52 [2021-12-27 23:51:49,273 INFO L387 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 51 treesize of output 49 [2021-12-27 23:51:49,277 INFO L387 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 49 treesize of output 52 [2021-12-27 23:51:49,927 INFO L387 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 51 treesize of output 49 [2021-12-27 23:51:49,930 INFO L387 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 49 treesize of output 52 [2021-12-27 23:51:50,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-27 23:51:50,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-27 23:51:50,112 INFO L353 Elim1Store]: treesize reduction 201, result has 13.4 percent of original size [2021-12-27 23:51:50,113 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 338 treesize of output 266 [2021-12-27 23:51:50,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-27 23:51:50,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-27 23:51:50,121 INFO L387 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 28 treesize of output 20 [2021-12-27 23:51:50,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-27 23:51:50,133 INFO L387 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 69 treesize of output 53 [2021-12-27 23:51:50,142 INFO L353 Elim1Store]: treesize reduction 30, result has 14.3 percent of original size [2021-12-27 23:51:50,143 INFO L387 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 119 treesize of output 102 [2021-12-27 23:51:50,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-27 23:51:50,147 INFO L387 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 102 treesize of output 72 [2021-12-27 23:51:50,151 INFO L387 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 [2021-12-27 23:51:50,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-27 23:51:50,155 INFO L387 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 15 treesize of output 7 [2021-12-27 23:51:50,645 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 13 proven. 18 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-12-27 23:51:50,645 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-27 23:51:52,322 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-27 23:51:52,322 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 304 treesize of output 252 [2021-12-27 23:51:52,335 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-27 23:51:52,335 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 267 treesize of output 297 [2021-12-27 23:51:52,342 INFO L387 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 239 treesize of output 237 [2021-12-27 23:51:52,392 INFO L387 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 4 [2021-12-27 23:51:52,402 INFO L387 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 234 treesize of output 223 [2021-12-27 23:51:54,723 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1882050703] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-27 23:51:54,724 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-27 23:51:54,724 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 25] total 49 [2021-12-27 23:51:54,724 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994898951] [2021-12-27 23:51:54,724 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-27 23:51:54,724 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2021-12-27 23:51:54,724 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-27 23:51:54,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2021-12-27 23:51:54,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=229, Invalid=2621, Unknown=12, NotChecked=0, Total=2862 [2021-12-27 23:51:54,726 INFO L87 Difference]: Start difference. First operand 123 states and 141 transitions. Second operand has 49 states, 46 states have (on average 1.9565217391304348) internal successors, (90), 39 states have internal predecessors, (90), 11 states have call successors, (18), 11 states have call predecessors, (18), 15 states have return successors, (16), 15 states have call predecessors, (16), 11 states have call successors, (16) [2021-12-27 23:52:01,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-27 23:52:01,225 INFO L93 Difference]: Finished difference Result 270 states and 311 transitions. [2021-12-27 23:52:01,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-12-27 23:52:01,225 INFO L78 Accepts]: Start accepts. Automaton has has 49 states, 46 states have (on average 1.9565217391304348) internal successors, (90), 39 states have internal predecessors, (90), 11 states have call successors, (18), 11 states have call predecessors, (18), 15 states have return successors, (16), 15 states have call predecessors, (16), 11 states have call successors, (16) Word has length 66 [2021-12-27 23:52:01,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-27 23:52:01,226 INFO L225 Difference]: With dead ends: 270 [2021-12-27 23:52:01,226 INFO L226 Difference]: Without dead ends: 163 [2021-12-27 23:52:01,228 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 71 SyntacticMatches, 2 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1636 ImplicationChecksByTransitivity, 9.4s TimeCoverageRelationStatistics Valid=738, Invalid=6219, Unknown=15, NotChecked=0, Total=6972 [2021-12-27 23:52:01,228 INFO L933 BasicCegarLoop]: 63 mSDtfsCounter, 586 mSDsluCounter, 923 mSDsCounter, 0 mSdLazyCounter, 1414 mSolverCounterSat, 217 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 588 SdHoareTripleChecker+Valid, 986 SdHoareTripleChecker+Invalid, 1970 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 217 IncrementalHoareTripleChecker+Valid, 1414 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 339 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-12-27 23:52:01,228 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [588 Valid, 986 Invalid, 1970 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [217 Valid, 1414 Invalid, 0 Unknown, 339 Unchecked, 0.9s Time] [2021-12-27 23:52:01,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2021-12-27 23:52:01,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 118. [2021-12-27 23:52:01,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 89 states have (on average 1.0898876404494382) internal successors, (97), 91 states have internal predecessors, (97), 14 states have call successors, (14), 11 states have call predecessors, (14), 13 states have return successors, (17), 15 states have call predecessors, (17), 14 states have call successors, (17) [2021-12-27 23:52:01,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 128 transitions. [2021-12-27 23:52:01,238 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 128 transitions. Word has length 66 [2021-12-27 23:52:01,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-27 23:52:01,238 INFO L470 AbstractCegarLoop]: Abstraction has 118 states and 128 transitions. [2021-12-27 23:52:01,238 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 46 states have (on average 1.9565217391304348) internal successors, (90), 39 states have internal predecessors, (90), 11 states have call successors, (18), 11 states have call predecessors, (18), 15 states have return successors, (16), 15 states have call predecessors, (16), 11 states have call successors, (16) [2021-12-27 23:52:01,238 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 128 transitions. [2021-12-27 23:52:01,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-12-27 23:52:01,242 INFO L506 BasicCegarLoop]: Found error trace [2021-12-27 23:52:01,242 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-27 23:52:01,260 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-12-27 23:52:01,459 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-27 23:52:01,459 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-27 23:52:01,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-27 23:52:01,459 INFO L85 PathProgramCache]: Analyzing trace with hash 1523149351, now seen corresponding path program 1 times [2021-12-27 23:52:01,459 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-27 23:52:01,459 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793883339] [2021-12-27 23:52:01,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-27 23:52:01,460 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-27 23:52:01,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-27 23:52:01,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-27 23:52:01,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-27 23:52:01,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-27 23:52:01,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-27 23:52:01,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-27 23:52:01,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-27 23:52:01,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-27 23:52:01,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-27 23:52:01,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-27 23:52:01,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-27 23:52:01,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-27 23:52:01,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-27 23:52:01,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-27 23:52:01,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-27 23:52:01,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-27 23:52:01,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-27 23:52:01,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-27 23:52:01,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-27 23:52:01,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-27 23:52:01,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-27 23:52:01,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-27 23:52:01,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-27 23:52:01,567 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2021-12-27 23:52:01,568 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-27 23:52:01,568 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793883339] [2021-12-27 23:52:01,568 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1793883339] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-27 23:52:01,568 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-27 23:52:01,568 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-27 23:52:01,568 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784441302] [2021-12-27 23:52:01,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-27 23:52:01,569 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-27 23:52:01,569 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-27 23:52:01,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-27 23:52:01,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-12-27 23:52:01,570 INFO L87 Difference]: Start difference. First operand 118 states and 128 transitions. Second operand has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (9), 4 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 1 states have call successors, (9) [2021-12-27 23:52:01,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-27 23:52:01,667 INFO L93 Difference]: Finished difference Result 124 states and 134 transitions. [2021-12-27 23:52:01,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-27 23:52:01,667 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (9), 4 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 1 states have call successors, (9) Word has length 87 [2021-12-27 23:52:01,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-27 23:52:01,668 INFO L225 Difference]: With dead ends: 124 [2021-12-27 23:52:01,668 INFO L226 Difference]: Without dead ends: 122 [2021-12-27 23:52:01,668 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-12-27 23:52:01,669 INFO L933 BasicCegarLoop]: 60 mSDtfsCounter, 38 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-27 23:52:01,669 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [40 Valid, 196 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-27 23:52:01,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2021-12-27 23:52:01,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2021-12-27 23:52:01,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 92 states have (on average 1.0869565217391304) internal successors, (100), 94 states have internal predecessors, (100), 14 states have call successors, (14), 11 states have call predecessors, (14), 14 states have return successors, (18), 16 states have call predecessors, (18), 14 states have call successors, (18) [2021-12-27 23:52:01,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 132 transitions. [2021-12-27 23:52:01,676 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 132 transitions. Word has length 87 [2021-12-27 23:52:01,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-27 23:52:01,676 INFO L470 AbstractCegarLoop]: Abstraction has 122 states and 132 transitions. [2021-12-27 23:52:01,676 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (9), 4 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 1 states have call successors, (9) [2021-12-27 23:52:01,676 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 132 transitions. [2021-12-27 23:52:01,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-12-27 23:52:01,677 INFO L506 BasicCegarLoop]: Found error trace [2021-12-27 23:52:01,677 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-27 23:52:01,677 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-27 23:52:01,677 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-27 23:52:01,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-27 23:52:01,678 INFO L85 PathProgramCache]: Analyzing trace with hash 1360136124, now seen corresponding path program 2 times [2021-12-27 23:52:01,678 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-27 23:52:01,678 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559380657] [2021-12-27 23:52:01,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-27 23:52:01,678 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-27 23:52:01,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-27 23:52:01,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-27 23:52:01,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-27 23:52:01,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-27 23:52:01,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-27 23:52:01,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-27 23:52:01,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-27 23:52:01,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-27 23:52:01,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-27 23:52:01,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-27 23:52:01,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-27 23:52:01,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-27 23:52:01,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-27 23:52:01,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-27 23:52:01,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-27 23:52:01,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-27 23:52:01,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-27 23:52:01,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-27 23:52:01,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-27 23:52:02,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-27 23:52:02,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-27 23:52:02,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-27 23:52:02,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-27 23:52:02,232 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 32 proven. 20 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2021-12-27 23:52:02,232 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-27 23:52:02,233 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559380657] [2021-12-27 23:52:02,233 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [559380657] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-27 23:52:02,233 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [265856482] [2021-12-27 23:52:02,233 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-27 23:52:02,233 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-27 23:52:02,233 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-27 23:52:02,235 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-27 23:52:02,236 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-12-27 23:52:02,415 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-27 23:52:02,415 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-27 23:52:02,420 INFO L263 TraceCheckSpWp]: Trace formula consists of 597 conjuncts, 266 conjunts are in the unsatisfiable core [2021-12-27 23:52:02,428 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-27 23:52:02,597 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-12-27 23:52:02,598 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-12-27 23:52:02,686 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-12-27 23:52:02,862 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-12-27 23:52:03,450 INFO L353 Elim1Store]: treesize reduction 117, result has 35.4 percent of original size [2021-12-27 23:52:03,450 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 3 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 194 treesize of output 182 [2021-12-27 23:52:03,456 INFO L387 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 [2021-12-27 23:52:03,462 INFO L387 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 [2021-12-27 23:52:03,468 INFO L387 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 [2021-12-27 23:52:03,513 INFO L387 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 15 treesize of output 11 [2021-12-27 23:52:03,516 INFO L387 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 [2021-12-27 23:52:03,531 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-12-27 23:52:03,562 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-12-27 23:52:03,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-27 23:52:03,584 INFO L387 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 15 treesize of output 11 [2021-12-27 23:52:03,587 INFO L387 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 [2021-12-27 23:52:03,646 INFO L353 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2021-12-27 23:52:03,646 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 60 treesize of output 70 [2021-12-27 23:52:03,677 INFO L387 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 [2021-12-27 23:52:03,700 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-12-27 23:52:03,741 INFO L353 Elim1Store]: treesize reduction 9, result has 47.1 percent of original size [2021-12-27 23:52:03,741 INFO L387 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 2 case distinctions, treesize of input 22 treesize of output 24 [2021-12-27 23:52:03,760 INFO L387 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 [2021-12-27 23:52:06,059 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-27 23:52:06,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-27 23:52:06,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-27 23:52:06,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-27 23:52:06,067 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-27 23:52:06,222 INFO L353 Elim1Store]: treesize reduction 404, result has 33.4 percent of original size [2021-12-27 23:52:06,222 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 6 new quantified variables, introduced 10 case distinctions, treesize of input 340 treesize of output 313 [2021-12-27 23:52:06,240 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-27 23:52:06,240 INFO L387 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 493 treesize of output 438 [2021-12-27 23:52:06,261 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-27 23:52:06,262 INFO L387 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 2 case distinctions, treesize of input 154 treesize of output 166 [2021-12-27 23:52:06,299 INFO L353 Elim1Store]: treesize reduction 62, result has 43.1 percent of original size [2021-12-27 23:52:06,300 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 243 treesize of output 281 [2021-12-27 23:52:06,312 INFO L387 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 99 treesize of output 93 [2021-12-27 23:52:06,349 INFO L353 Elim1Store]: treesize reduction 45, result has 51.1 percent of original size [2021-12-27 23:52:06,349 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 229 treesize of output 257 [2021-12-27 23:52:06,366 INFO L353 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2021-12-27 23:52:06,366 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 15 [2021-12-27 23:52:06,403 INFO L387 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 [2021-12-27 23:52:06,432 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-12-27 23:52:06,457 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select 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 15 [2021-12-27 23:52:06,518 INFO L387 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 [2021-12-27 23:52:06,549 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-27 23:52:06,565 INFO L353 Elim1Store]: treesize reduction 36, result has 40.0 percent of original size [2021-12-27 23:52:06,565 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 415 treesize of output 301 [2021-12-27 23:52:07,631 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-27 23:52:07,631 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 56 treesize of output 60 [2021-12-27 23:52:07,707 INFO L387 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 30 [2021-12-27 23:52:07,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-27 23:52:07,748 INFO L387 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 31 treesize of output 15 [2021-12-27 23:52:08,987 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-27 23:52:08,988 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 29 [2021-12-27 23:52:09,019 INFO L353 Elim1Store]: treesize reduction 13, result has 48.0 percent of original size [2021-12-27 23:52:09,019 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 104 treesize of output 102 [2021-12-27 23:52:09,526 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-27 23:52:09,526 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 36 [2021-12-27 23:52:10,170 INFO L353 Elim1Store]: treesize reduction 9, result has 47.1 percent of original size [2021-12-27 23:52:10,170 INFO L387 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 103 treesize of output 94 [2021-12-27 23:52:10,177 INFO L387 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 88 treesize of output 72 [2021-12-27 23:52:10,195 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2021-12-27 23:52:10,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-27 23:52:10,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-27 23:52:10,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-27 23:52:10,410 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-27 23:52:10,410 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 104 [2021-12-27 23:52:10,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-27 23:52:10,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-27 23:52:10,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-27 23:52:10,527 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-27 23:52:10,528 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 205 treesize of output 225 [2021-12-27 23:52:10,836 INFO L387 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 76 treesize of output 60 [2021-12-27 23:52:10,859 INFO L353 Elim1Store]: treesize reduction 23, result has 53.1 percent of original size [2021-12-27 23:52:10,859 INFO L387 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 5 new quantified variables, introduced 4 case distinctions, treesize of input 60 treesize of output 52 [2021-12-27 23:52:11,974 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 36 proven. 30 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-12-27 23:52:11,974 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-27 23:52:13,898 INFO L387 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 688 treesize of output 680 [2021-12-27 23:52:13,905 INFO L387 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 722 treesize of output 714 [2021-12-27 23:52:13,913 INFO L387 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 798 treesize of output 782 [2021-12-27 23:52:13,921 INFO L387 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 824 treesize of output 816 [2021-12-27 23:52:13,929 INFO L387 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 816 treesize of output 812 [2021-12-27 23:52:14,515 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [265856482] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-27 23:52:14,516 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-27 23:52:14,516 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 38] total 60 [2021-12-27 23:52:14,516 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124266417] [2021-12-27 23:52:14,516 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-27 23:52:14,517 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 60 states [2021-12-27 23:52:14,517 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-27 23:52:14,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 60 interpolants. [2021-12-27 23:52:14,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=353, Invalid=4901, Unknown=2, NotChecked=0, Total=5256 [2021-12-27 23:52:14,518 INFO L87 Difference]: Start difference. First operand 122 states and 132 transitions. Second operand has 60 states, 51 states have (on average 2.176470588235294) internal successors, (111), 43 states have internal predecessors, (111), 17 states have call successors, (21), 12 states have call predecessors, (21), 16 states have return successors, (22), 18 states have call predecessors, (22), 17 states have call successors, (22) [2021-12-27 23:52:16,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-27 23:52:16,567 INFO L93 Difference]: Finished difference Result 181 states and 195 transitions. [2021-12-27 23:52:16,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-12-27 23:52:16,571 INFO L78 Accepts]: Start accepts. Automaton has has 60 states, 51 states have (on average 2.176470588235294) internal successors, (111), 43 states have internal predecessors, (111), 17 states have call successors, (21), 12 states have call predecessors, (21), 16 states have return successors, (22), 18 states have call predecessors, (22), 17 states have call successors, (22) Word has length 90 [2021-12-27 23:52:16,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-27 23:52:16,573 INFO L225 Difference]: With dead ends: 181 [2021-12-27 23:52:16,573 INFO L226 Difference]: Without dead ends: 116 [2021-12-27 23:52:16,575 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 100 SyntacticMatches, 1 SemanticMatches, 102 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2963 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=855, Invalid=9855, Unknown=2, NotChecked=0, Total=10712 [2021-12-27 23:52:16,576 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 248 mSDsluCounter, 823 mSDsCounter, 0 mSdLazyCounter, 1391 mSolverCounterSat, 155 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 248 SdHoareTripleChecker+Valid, 878 SdHoareTripleChecker+Invalid, 1631 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 155 IncrementalHoareTripleChecker+Valid, 1391 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 85 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-27 23:52:16,576 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [248 Valid, 878 Invalid, 1631 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [155 Valid, 1391 Invalid, 0 Unknown, 85 Unchecked, 0.7s Time] [2021-12-27 23:52:16,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2021-12-27 23:52:16,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 108. [2021-12-27 23:52:16,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 82 states have (on average 1.0609756097560976) internal successors, (87), 83 states have internal predecessors, (87), 13 states have call successors, (13), 10 states have call predecessors, (13), 11 states have return successors, (14), 14 states have call predecessors, (14), 13 states have call successors, (14) [2021-12-27 23:52:16,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 114 transitions. [2021-12-27 23:52:16,582 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 114 transitions. Word has length 90 [2021-12-27 23:52:16,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-27 23:52:16,582 INFO L470 AbstractCegarLoop]: Abstraction has 108 states and 114 transitions. [2021-12-27 23:52:16,583 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 60 states, 51 states have (on average 2.176470588235294) internal successors, (111), 43 states have internal predecessors, (111), 17 states have call successors, (21), 12 states have call predecessors, (21), 16 states have return successors, (22), 18 states have call predecessors, (22), 17 states have call successors, (22) [2021-12-27 23:52:16,583 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 114 transitions. [2021-12-27 23:52:16,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-12-27 23:52:16,584 INFO L506 BasicCegarLoop]: Found error trace [2021-12-27 23:52:16,584 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-27 23:52:16,602 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-12-27 23:52:16,784 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-27 23:52:16,785 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-27 23:52:16,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-27 23:52:16,785 INFO L85 PathProgramCache]: Analyzing trace with hash -299426104, now seen corresponding path program 1 times [2021-12-27 23:52:16,785 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-27 23:52:16,785 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038336300] [2021-12-27 23:52:16,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-27 23:52:16,785 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-27 23:52:16,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-27 23:52:16,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-27 23:52:16,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-27 23:52:16,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-27 23:52:16,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-27 23:52:16,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-27 23:52:16,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-27 23:52:16,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-27 23:52:16,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-27 23:52:16,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-27 23:52:16,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-27 23:52:16,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-27 23:52:16,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-27 23:52:16,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-27 23:52:16,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-27 23:52:16,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-27 23:52:16,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-27 23:52:16,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-27 23:52:16,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-27 23:52:16,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-27 23:52:16,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-27 23:52:16,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-27 23:52:16,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-27 23:52:16,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-27 23:52:16,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-27 23:52:16,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-27 23:52:16,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-27 23:52:17,017 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2021-12-27 23:52:17,018 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-27 23:52:17,018 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2038336300] [2021-12-27 23:52:17,018 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2038336300] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-27 23:52:17,018 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-27 23:52:17,018 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2021-12-27 23:52:17,018 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56685179] [2021-12-27 23:52:17,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-27 23:52:17,019 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-12-27 23:52:17,019 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-27 23:52:17,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-12-27 23:52:17,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=208, Unknown=0, NotChecked=0, Total=240 [2021-12-27 23:52:17,020 INFO L87 Difference]: Start difference. First operand 108 states and 114 transitions. Second operand has 16 states, 15 states have (on average 3.4) internal successors, (51), 12 states have internal predecessors, (51), 5 states have call successors, (12), 4 states have call predecessors, (12), 5 states have return successors, (12), 7 states have call predecessors, (12), 5 states have call successors, (12) [2021-12-27 23:52:17,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-27 23:52:17,648 INFO L93 Difference]: Finished difference Result 143 states and 153 transitions. [2021-12-27 23:52:17,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-12-27 23:52:17,649 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 3.4) internal successors, (51), 12 states have internal predecessors, (51), 5 states have call successors, (12), 4 states have call predecessors, (12), 5 states have return successors, (12), 7 states have call predecessors, (12), 5 states have call successors, (12) Word has length 103 [2021-12-27 23:52:17,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-27 23:52:17,650 INFO L225 Difference]: With dead ends: 143 [2021-12-27 23:52:17,650 INFO L226 Difference]: Without dead ends: 123 [2021-12-27 23:52:17,650 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 170 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=189, Invalid=933, Unknown=0, NotChecked=0, Total=1122 [2021-12-27 23:52:17,651 INFO L933 BasicCegarLoop]: 63 mSDtfsCounter, 176 mSDsluCounter, 363 mSDsCounter, 0 mSdLazyCounter, 494 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 426 SdHoareTripleChecker+Invalid, 568 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 494 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-27 23:52:17,651 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [176 Valid, 426 Invalid, 568 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 494 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-27 23:52:17,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2021-12-27 23:52:17,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 109. [2021-12-27 23:52:17,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 83 states have (on average 1.0602409638554218) internal successors, (88), 84 states have internal predecessors, (88), 13 states have call successors, (13), 10 states have call predecessors, (13), 11 states have return successors, (14), 14 states have call predecessors, (14), 13 states have call successors, (14) [2021-12-27 23:52:17,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 115 transitions. [2021-12-27 23:52:17,658 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 115 transitions. Word has length 103 [2021-12-27 23:52:17,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-27 23:52:17,658 INFO L470 AbstractCegarLoop]: Abstraction has 109 states and 115 transitions. [2021-12-27 23:52:17,658 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 3.4) internal successors, (51), 12 states have internal predecessors, (51), 5 states have call successors, (12), 4 states have call predecessors, (12), 5 states have return successors, (12), 7 states have call predecessors, (12), 5 states have call successors, (12) [2021-12-27 23:52:17,658 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 115 transitions. [2021-12-27 23:52:17,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2021-12-27 23:52:17,663 INFO L506 BasicCegarLoop]: Found error trace [2021-12-27 23:52:17,663 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-27 23:52:17,663 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-27 23:52:17,664 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-27 23:52:17,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-27 23:52:17,664 INFO L85 PathProgramCache]: Analyzing trace with hash 1365564594, now seen corresponding path program 2 times [2021-12-27 23:52:17,664 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-27 23:52:17,664 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43434086] [2021-12-27 23:52:17,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-27 23:52:17,664 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-27 23:52:17,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-27 23:52:17,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-27 23:52:17,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-27 23:52:17,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-27 23:52:17,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-27 23:52:17,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-27 23:52:17,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-27 23:52:17,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-27 23:52:17,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-27 23:52:17,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-27 23:52:17,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-27 23:52:17,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-27 23:52:17,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-27 23:52:18,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-27 23:52:18,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-27 23:52:18,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-27 23:52:18,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-27 23:52:18,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-27 23:52:18,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-27 23:52:18,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-27 23:52:18,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-27 23:52:18,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-27 23:52:18,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-27 23:52:18,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-27 23:52:18,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-27 23:52:18,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-27 23:52:18,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-27 23:52:18,461 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 44 proven. 22 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2021-12-27 23:52:18,461 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-27 23:52:18,461 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43434086] [2021-12-27 23:52:18,461 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [43434086] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-27 23:52:18,461 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [379273771] [2021-12-27 23:52:18,461 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-27 23:52:18,461 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-27 23:52:18,461 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-27 23:52:18,462 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-27 23:52:18,463 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-12-27 23:52:18,754 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-27 23:52:18,755 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-27 23:52:18,760 INFO L263 TraceCheckSpWp]: Trace formula consists of 779 conjuncts, 214 conjunts are in the unsatisfiable core [2021-12-27 23:52:18,767 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-27 23:52:18,851 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-12-27 23:52:19,365 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-12-27 23:52:19,392 INFO L353 Elim1Store]: treesize reduction 33, result has 40.0 percent of original size [2021-12-27 23:52:19,393 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 12 treesize of output 27 [2021-12-27 23:52:19,413 INFO L353 Elim1Store]: treesize reduction 33, result has 40.0 percent of original size [2021-12-27 23:52:19,414 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 12 treesize of output 27 [2021-12-27 23:52:19,505 INFO L353 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-12-27 23:52:19,505 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-12-27 23:52:20,479 INFO L387 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 [2021-12-27 23:52:20,482 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-12-27 23:52:20,630 INFO L353 Elim1Store]: treesize reduction 162, result has 40.7 percent of original size [2021-12-27 23:52:20,630 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 6 new quantified variables, introduced 11 case distinctions, treesize of input 354 treesize of output 239 [2021-12-27 23:52:20,662 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-27 23:52:20,663 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 77 treesize of output 91 [2021-12-27 23:52:20,673 INFO L387 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 [2021-12-27 23:52:20,683 INFO L387 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 12 treesize of output 11 [2021-12-27 23:52:20,807 INFO L353 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-12-27 23:52:20,807 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 1 case distinctions, treesize of input 40 treesize of output 34 [2021-12-27 23:52:20,829 INFO L387 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 9 treesize of output 7 [2021-12-27 23:52:20,902 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-27 23:52:20,902 INFO L387 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 19 treesize of output 23 [2021-12-27 23:52:20,912 INFO L387 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 9 treesize of output 7 [2021-12-27 23:52:20,981 INFO L387 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 11 treesize of output 7 [2021-12-27 23:52:21,393 INFO L387 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 12 treesize of output 10 [2021-12-27 23:52:21,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-27 23:52:21,405 INFO L387 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 20 treesize of output 16 [2021-12-27 23:52:21,445 INFO L387 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 34 treesize of output 30 [2021-12-27 23:52:21,779 INFO L353 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-12-27 23:52:21,779 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 1 case distinctions, treesize of input 179 treesize of output 153 [2021-12-27 23:52:21,791 INFO L387 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 133 treesize of output 115 [2021-12-27 23:52:22,313 INFO L353 Elim1Store]: treesize reduction 17, result has 32.0 percent of original size [2021-12-27 23:52:22,313 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 191 treesize of output 171 [2021-12-27 23:52:22,329 INFO L387 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 143 treesize of output 123 [2021-12-27 23:52:22,680 INFO L353 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-12-27 23:52:22,680 INFO L387 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 183 treesize of output 157 [2021-12-27 23:52:22,687 INFO L387 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 142 treesize of output 122 [2021-12-27 23:52:23,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-27 23:52:23,446 INFO L387 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 21 treesize of output 25 [2021-12-27 23:52:23,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-27 23:52:23,523 INFO L387 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 13 treesize of output 17 [2021-12-27 23:52:23,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-27 23:52:23,829 INFO L387 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 13 treesize of output 17 [2021-12-27 23:52:24,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-27 23:52:24,086 INFO L387 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 21 treesize of output 25