/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleepPersistentFixedOrder-NoLbe-LoopLockstep.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/popl20-mult-equiv.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-ba0fd47f62a02cd5486659f03d300faf678a2e90-ba0fd47 [2021-11-14 11:40:43,647 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-14 11:40:43,649 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-14 11:40:43,697 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-14 11:40:43,697 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-14 11:40:43,699 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-14 11:40:43,700 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-14 11:40:43,703 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-14 11:40:43,704 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-14 11:40:43,707 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-14 11:40:43,707 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-14 11:40:43,708 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-14 11:40:43,708 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-14 11:40:43,709 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-14 11:40:43,711 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-14 11:40:43,714 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-14 11:40:43,715 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-14 11:40:43,715 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-14 11:40:43,717 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-14 11:40:43,720 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-14 11:40:43,721 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-14 11:40:43,723 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-14 11:40:43,724 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-14 11:40:43,725 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-14 11:40:43,727 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-11-14 11:40:43,729 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-14 11:40:43,729 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-14 11:40:43,730 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-14 11:40:43,730 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-14 11:40:43,731 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-14 11:40:43,731 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-14 11:40:43,731 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-14 11:40:43,732 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-14 11:40:43,732 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-14 11:40:43,732 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-14 11:40:43,733 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-14 11:40:43,733 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleepPersistentFixedOrder-NoLbe-LoopLockstep.epf [2021-11-14 11:40:43,745 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-14 11:40:43,745 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-14 11:40:43,746 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-14 11:40:43,746 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-14 11:40:43,746 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-14 11:40:43,746 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-14 11:40:43,747 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-14 11:40:43,747 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-14 11:40:43,747 INFO L138 SettingsManager]: * Use SBE=true [2021-11-14 11:40:43,747 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-14 11:40:43,747 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-14 11:40:43,747 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-14 11:40:43,747 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-14 11:40:43,748 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-14 11:40:43,748 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-14 11:40:43,748 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-14 11:40:43,748 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-14 11:40:43,748 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-14 11:40:43,748 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-14 11:40:43,748 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-14 11:40:43,748 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-14 11:40:43,749 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-14 11:40:43,749 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-14 11:40:43,749 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-11-14 11:40:43,749 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-14 11:40:43,749 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-14 11:40:43,749 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-14 11:40:43,749 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-14 11:40:43,749 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-14 11:40:43,749 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-14 11:40:43,750 INFO L138 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2021-11-14 11:40:43,750 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-14 11:40:43,750 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-14 11:40:43,750 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-11-14 11:40:43,750 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-14 11:40:43,750 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2021-11-14 11:40:43,750 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2021-11-14 11:40:43,750 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-11-14 11:40:43,937 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-14 11:40:43,950 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-14 11:40:43,952 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-14 11:40:43,953 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-14 11:40:43,963 INFO L275 PluginConnector]: CDTParser initialized [2021-11-14 11:40:43,964 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-mult-equiv.wvr.c [2021-11-14 11:40:44,012 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6aac4c84c/e74867810aa7451ba1ceef9336aee054/FLAG25066d6cf [2021-11-14 11:40:44,345 INFO L306 CDTParser]: Found 1 translation units. [2021-11-14 11:40:44,345 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-mult-equiv.wvr.c [2021-11-14 11:40:44,349 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6aac4c84c/e74867810aa7451ba1ceef9336aee054/FLAG25066d6cf [2021-11-14 11:40:44,804 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6aac4c84c/e74867810aa7451ba1ceef9336aee054 [2021-11-14 11:40:44,805 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-14 11:40:44,806 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-11-14 11:40:44,807 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-14 11:40:44,807 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-14 11:40:44,809 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-14 11:40:44,810 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 11:40:44" (1/1) ... [2021-11-14 11:40:44,810 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3867afe3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 11:40:44, skipping insertion in model container [2021-11-14 11:40:44,810 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 11:40:44" (1/1) ... [2021-11-14 11:40:44,814 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-14 11:40:44,826 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-14 11:40:44,997 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-mult-equiv.wvr.c[2591,2604] [2021-11-14 11:40:44,999 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-14 11:40:45,002 INFO L203 MainTranslator]: Completed pre-run [2021-11-14 11:40:45,035 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-mult-equiv.wvr.c[2591,2604] [2021-11-14 11:40:45,035 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-14 11:40:45,043 INFO L208 MainTranslator]: Completed translation [2021-11-14 11:40:45,044 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 11:40:45 WrapperNode [2021-11-14 11:40:45,044 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-14 11:40:45,044 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-14 11:40:45,044 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-14 11:40:45,044 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-14 11:40:45,052 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 11:40:45" (1/1) ... [2021-11-14 11:40:45,062 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 11:40:45" (1/1) ... [2021-11-14 11:40:45,077 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-14 11:40:45,077 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-14 11:40:45,077 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-14 11:40:45,077 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-14 11:40:45,082 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 11:40:45" (1/1) ... [2021-11-14 11:40:45,082 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 11:40:45" (1/1) ... [2021-11-14 11:40:45,086 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 11:40:45" (1/1) ... [2021-11-14 11:40:45,086 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 11:40:45" (1/1) ... [2021-11-14 11:40:45,099 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 11:40:45" (1/1) ... [2021-11-14 11:40:45,101 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 11:40:45" (1/1) ... [2021-11-14 11:40:45,101 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 11:40:45" (1/1) ... [2021-11-14 11:40:45,102 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-14 11:40:45,103 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-14 11:40:45,103 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-14 11:40:45,103 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-14 11:40:45,106 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 11:40:45" (1/1) ... [2021-11-14 11:40:45,110 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-14 11:40:45,118 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-14 11:40:45,128 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) [2021-11-14 11:40:45,168 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 [2021-11-14 11:40:45,176 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-14 11:40:45,176 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-11-14 11:40:45,176 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-11-14 11:40:45,176 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-11-14 11:40:45,176 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-11-14 11:40:45,176 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-11-14 11:40:45,176 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-11-14 11:40:45,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-14 11:40:45,176 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-14 11:40:45,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-14 11:40:45,177 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-11-14 11:40:45,177 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-11-14 11:40:45,177 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-14 11:40:45,177 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-14 11:40:45,177 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-14 11:40:45,177 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-14 11:40:45,178 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-14 11:40:45,377 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-14 11:40:45,377 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2021-11-14 11:40:45,378 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 11:40:45 BoogieIcfgContainer [2021-11-14 11:40:45,378 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-14 11:40:45,379 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-14 11:40:45,379 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-14 11:40:45,381 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-14 11:40:45,381 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 11:40:44" (1/3) ... [2021-11-14 11:40:45,382 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28183e3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 11:40:45, skipping insertion in model container [2021-11-14 11:40:45,382 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 11:40:45" (2/3) ... [2021-11-14 11:40:45,382 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28183e3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 11:40:45, skipping insertion in model container [2021-11-14 11:40:45,382 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 11:40:45" (3/3) ... [2021-11-14 11:40:45,383 INFO L111 eAbstractionObserver]: Analyzing ICFG popl20-mult-equiv.wvr.c [2021-11-14 11:40:45,385 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-14 11:40:45,385 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-14 11:40:45,385 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-14 11:40:45,386 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-14 11:40:45,404 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 11:40:45,404 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 11:40:45,404 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 11:40:45,404 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 11:40:45,404 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 11:40:45,404 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 11:40:45,405 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 11:40:45,405 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 11:40:45,405 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 11:40:45,405 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 11:40:45,405 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 11:40:45,405 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 11:40:45,405 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 11:40:45,405 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 11:40:45,406 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 11:40:45,406 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 11:40:45,406 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 11:40:45,406 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 11:40:45,406 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 11:40:45,406 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 11:40:45,407 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 11:40:45,407 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 11:40:45,407 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 11:40:45,407 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 11:40:45,407 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 11:40:45,407 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 11:40:45,407 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 11:40:45,408 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 11:40:45,408 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 11:40:45,408 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 11:40:45,408 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 11:40:45,408 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 11:40:45,408 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 11:40:45,409 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 11:40:45,410 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 11:40:45,410 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 11:40:45,410 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 11:40:45,410 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 11:40:45,411 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 11:40:45,411 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~cond~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 11:40:45,411 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 11:40:45,412 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 11:40:45,412 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 11:40:45,412 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-14 11:40:45,414 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-11-14 11:40:45,455 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-11-14 11:40:45,455 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-14 11:40:45,456 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-11-14 11:40:45,461 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2021-11-14 11:40:45,486 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2021-11-14 11:40:45,490 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=PARTIAL_ORDER_FA, 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 [2021-11-14 11:40:45,490 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-11-14 11:40:45,735 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-14 11:40:45,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 11:40:45,739 INFO L85 PathProgramCache]: Analyzing trace with hash 1497038811, now seen corresponding path program 1 times [2021-11-14 11:40:45,744 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 11:40:45,744 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797701126] [2021-11-14 11:40:45,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 11:40:45,745 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 11:40:45,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 11:40:45,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-14 11:40:45,914 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-14 11:40:45,914 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797701126] [2021-11-14 11:40:45,915 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [797701126] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-14 11:40:45,915 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-14 11:40:45,915 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-14 11:40:45,916 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905761575] [2021-11-14 11:40:45,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-14 11:40:45,920 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-14 11:40:45,920 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-14 11:40:45,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-14 11:40:45,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-14 11:40:45,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 11:40:45,937 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-14 11:40:45,938 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 35.5) internal successors, (71), 2 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-14 11:40:45,939 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 11:40:45,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 11:40:45,972 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-14 11:40:45,972 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-14 11:40:45,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 11:40:45,972 INFO L85 PathProgramCache]: Analyzing trace with hash -1704705153, now seen corresponding path program 1 times [2021-11-14 11:40:45,972 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 11:40:45,973 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550115401] [2021-11-14 11:40:45,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 11:40:45,973 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 11:40:46,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 11:40:46,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-14 11:40:46,126 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-14 11:40:46,126 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [550115401] [2021-11-14 11:40:46,127 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [550115401] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-14 11:40:46,127 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-14 11:40:46,127 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-14 11:40:46,127 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101672061] [2021-11-14 11:40:46,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-14 11:40:46,128 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-14 11:40:46,128 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-14 11:40:46,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-14 11:40:46,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-14 11:40:46,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 11:40:46,129 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-14 11:40:46,129 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-14 11:40:46,129 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 11:40:46,129 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 11:40:46,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 11:40:46,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-14 11:40:46,182 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-14 11:40:46,182 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-14 11:40:46,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 11:40:46,182 INFO L85 PathProgramCache]: Analyzing trace with hash 1089410114, now seen corresponding path program 1 times [2021-11-14 11:40:46,183 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 11:40:46,183 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [712715150] [2021-11-14 11:40:46,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 11:40:46,183 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 11:40:46,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 11:40:46,334 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-14 11:40:46,334 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-14 11:40:46,335 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [712715150] [2021-11-14 11:40:46,335 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [712715150] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-14 11:40:46,335 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-14 11:40:46,335 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-14 11:40:46,335 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307209562] [2021-11-14 11:40:46,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-14 11:40:46,335 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-14 11:40:46,336 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-14 11:40:46,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-14 11:40:46,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-14 11:40:46,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 11:40:46,336 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-14 11:40:46,336 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-14 11:40:46,336 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 11:40:46,336 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-14 11:40:46,337 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 11:40:47,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 11:40:47,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-14 11:40:47,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-14 11:40:47,475 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-14 11:40:47,475 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-14 11:40:47,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 11:40:47,476 INFO L85 PathProgramCache]: Analyzing trace with hash 1281586826, now seen corresponding path program 1 times [2021-11-14 11:40:47,476 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 11:40:47,476 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158406250] [2021-11-14 11:40:47,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 11:40:47,476 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 11:40:47,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 11:40:47,619 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-14 11:40:47,620 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-14 11:40:47,620 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [158406250] [2021-11-14 11:40:47,620 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [158406250] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-14 11:40:47,620 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-14 11:40:47,620 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-14 11:40:47,620 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903336125] [2021-11-14 11:40:47,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-14 11:40:47,621 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-14 11:40:47,621 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-14 11:40:47,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-14 11:40:47,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-14 11:40:47,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 11:40:47,621 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-14 11:40:47,622 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-14 11:40:47,622 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 11:40:47,622 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-14 11:40:47,622 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-11-14 11:40:47,622 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 11:40:47,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 11:40:47,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-14 11:40:47,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-14 11:40:47,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-14 11:40:47,699 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-14 11:40:47,699 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-14 11:40:47,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 11:40:47,701 INFO L85 PathProgramCache]: Analyzing trace with hash -1179579267, now seen corresponding path program 1 times [2021-11-14 11:40:47,701 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 11:40:47,701 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224975912] [2021-11-14 11:40:47,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 11:40:47,701 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 11:40:47,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 11:40:47,875 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-14 11:40:47,875 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-14 11:40:47,875 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224975912] [2021-11-14 11:40:47,876 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1224975912] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-14 11:40:47,876 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-14 11:40:47,876 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-14 11:40:47,876 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815285445] [2021-11-14 11:40:47,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-14 11:40:47,877 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-14 11:40:47,877 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-14 11:40:47,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-14 11:40:47,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-11-14 11:40:47,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 11:40:47,877 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-14 11:40:47,878 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-14 11:40:47,878 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 11:40:47,878 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-11-14 11:40:47,878 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-11-14 11:40:47,878 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-11-14 11:40:47,878 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 11:40:47,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 11:40:47,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-14 11:40:47,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-14 11:40:47,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-14 11:40:47,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-14 11:40:47,935 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-14 11:40:47,936 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-14 11:40:47,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 11:40:47,937 INFO L85 PathProgramCache]: Analyzing trace with hash -1259002676, now seen corresponding path program 1 times [2021-11-14 11:40:47,937 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 11:40:47,937 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1041523796] [2021-11-14 11:40:47,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 11:40:47,937 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 11:40:47,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 11:40:48,100 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-14 11:40:48,100 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-14 11:40:48,100 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1041523796] [2021-11-14 11:40:48,101 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1041523796] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-14 11:40:48,101 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [918255714] [2021-11-14 11:40:48,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 11:40:48,101 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-14 11:40:48,101 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-14 11:40:48,102 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) [2021-11-14 11:40:48,103 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-14 11:40:48,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 11:40:48,263 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-14 11:40:48,267 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-14 11:40:48,688 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-14 11:40:48,688 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-14 11:40:49,376 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-14 11:40:49,377 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [918255714] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-14 11:40:49,377 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-14 11:40:49,377 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 9] total 16 [2021-11-14 11:40:49,377 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656033450] [2021-11-14 11:40:49,377 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-14 11:40:49,378 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-11-14 11:40:49,378 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-14 11:40:49,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-11-14 11:40:49,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=178, Unknown=0, NotChecked=0, Total=240 [2021-11-14 11:40:49,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 11:40:49,379 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-14 11:40:49,379 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 8.5625) internal successors, (137), 16 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-14 11:40:49,379 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 11:40:49,379 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-11-14 11:40:49,379 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-11-14 11:40:49,379 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-11-14 11:40:49,379 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-14 11:40:49,379 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 11:40:49,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 11:40:49,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-14 11:40:49,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-14 11:40:49,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-14 11:40:49,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-14 11:40:49,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-14 11:40:49,577 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-14 11:40:49,759 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-11-14 11:40:49,759 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-14 11:40:49,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 11:40:49,759 INFO L85 PathProgramCache]: Analyzing trace with hash 2052532259, now seen corresponding path program 2 times [2021-11-14 11:40:49,759 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 11:40:49,760 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380221317] [2021-11-14 11:40:49,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 11:40:49,760 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 11:40:49,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 11:40:49,971 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-14 11:40:49,971 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-14 11:40:49,971 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1380221317] [2021-11-14 11:40:49,971 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1380221317] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-14 11:40:49,971 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1935077571] [2021-11-14 11:40:49,972 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-14 11:40:49,972 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-14 11:40:49,972 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-14 11:40:49,975 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) [2021-11-14 11:40:49,978 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-14 11:40:50,026 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-14 11:40:50,027 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-14 11:40:50,027 INFO L263 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 19 conjunts are in the unsatisfiable core [2021-11-14 11:40:50,029 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-14 11:40:50,528 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-14 11:40:50,528 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-14 11:41:25,217 WARN L227 SmtUtils]: Spent 33.47s on a formula simplification. DAG size of input: 86 DAG size of output: 77 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-14 11:41:26,575 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-14 11:41:26,576 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1935077571] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-14 11:41:26,576 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-14 11:41:26,576 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 12, 10] total 25 [2021-11-14 11:41:26,576 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579245436] [2021-11-14 11:41:26,576 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-14 11:41:26,577 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-11-14 11:41:26,577 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-14 11:41:26,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-11-14 11:41:26,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=506, Unknown=0, NotChecked=0, Total=600 [2021-11-14 11:41:26,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 11:41:26,578 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-14 11:41:26,578 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 8.2) internal successors, (205), 25 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-14 11:41:26,578 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 11:41:26,578 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-11-14 11:41:26,578 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-11-14 11:41:26,578 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-11-14 11:41:26,578 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-14 11:41:26,578 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-11-14 11:41:26,578 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 11:41:30,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 11:41:30,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-14 11:41:30,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-14 11:41:30,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-14 11:41:30,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-14 11:41:30,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-14 11:41:30,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-11-14 11:41:30,552 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-14 11:41:30,736 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-14 11:41:30,736 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-14 11:41:30,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 11:41:30,737 INFO L85 PathProgramCache]: Analyzing trace with hash 1050657683, now seen corresponding path program 1 times [2021-11-14 11:41:30,737 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 11:41:30,737 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199531143] [2021-11-14 11:41:30,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 11:41:30,737 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 11:41:30,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 11:41:30,880 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-14 11:41:30,880 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-14 11:41:30,880 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1199531143] [2021-11-14 11:41:30,881 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1199531143] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-14 11:41:30,881 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1512695320] [2021-11-14 11:41:30,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 11:41:30,881 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-14 11:41:30,881 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-14 11:41:30,882 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) [2021-11-14 11:41:30,883 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-14 11:41:30,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 11:41:30,929 INFO L263 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-14 11:41:30,930 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-14 11:41:31,392 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-14 11:41:31,392 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-14 11:41:31,837 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-14 11:41:31,838 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1512695320] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-14 11:41:31,838 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-14 11:41:31,838 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10, 10] total 21 [2021-11-14 11:41:31,838 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532827613] [2021-11-14 11:41:31,838 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-14 11:41:31,839 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-11-14 11:41:31,839 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-14 11:41:31,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-11-14 11:41:31,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=314, Unknown=0, NotChecked=0, Total=420 [2021-11-14 11:41:31,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 11:41:31,839 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-14 11:41:31,840 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 6.9523809523809526) internal successors, (146), 21 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-14 11:41:31,840 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 11:41:31,840 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-11-14 11:41:31,840 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-11-14 11:41:31,840 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-11-14 11:41:31,840 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-14 11:41:31,840 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-11-14 11:41:31,840 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-11-14 11:41:31,840 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 11:41:32,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 11:41:32,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-14 11:41:32,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-14 11:41:32,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-14 11:41:32,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-14 11:41:32,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-14 11:41:32,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-11-14 11:41:32,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-14 11:41:32,077 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2021-11-14 11:41:32,262 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-14 11:41:32,262 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-14 11:41:32,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 11:41:32,262 INFO L85 PathProgramCache]: Analyzing trace with hash 880872950, now seen corresponding path program 2 times [2021-11-14 11:41:32,263 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 11:41:32,263 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243625130] [2021-11-14 11:41:32,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 11:41:32,263 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 11:41:32,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 11:41:32,677 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-14 11:41:32,677 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-14 11:41:32,677 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243625130] [2021-11-14 11:41:32,677 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [243625130] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-14 11:41:32,677 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1232676306] [2021-11-14 11:41:32,677 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-14 11:41:32,677 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-14 11:41:32,678 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-14 11:41:32,678 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) [2021-11-14 11:41:32,679 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-14 11:41:32,783 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-14 11:41:32,784 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-14 11:41:32,785 INFO L263 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 31 conjunts are in the unsatisfiable core [2021-11-14 11:41:32,786 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-14 11:41:33,997 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-14 11:41:33,997 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-14 11:42:52,589 WARN L227 SmtUtils]: Spent 1.01m on a formula simplification. DAG size of input: 153 DAG size of output: 104 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-14 11:43:28,579 WARN L227 SmtUtils]: Spent 34.40s on a formula simplification. DAG size of input: 99 DAG size of output: 75 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-14 11:43:29,050 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-14 11:43:29,050 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1232676306] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-14 11:43:29,050 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-14 11:43:29,050 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 18, 16] total 40 [2021-11-14 11:43:29,051 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477339791] [2021-11-14 11:43:29,051 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-14 11:43:29,051 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2021-11-14 11:43:29,051 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-14 11:43:29,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2021-11-14 11:43:29,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=239, Invalid=1321, Unknown=0, NotChecked=0, Total=1560 [2021-11-14 11:43:29,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 11:43:29,052 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-14 11:43:29,053 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 40 states have (on average 5.1) internal successors, (204), 40 states have internal predecessors, (204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-14 11:43:29,053 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 11:43:29,053 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-11-14 11:43:29,053 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-11-14 11:43:29,053 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-11-14 11:43:29,053 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-14 11:43:29,053 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-11-14 11:43:29,053 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-11-14 11:43:29,053 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-11-14 11:43:29,053 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 11:43:41,644 WARN L227 SmtUtils]: Spent 10.25s on a formula simplification. DAG size of input: 155 DAG size of output: 43 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-14 11:43:48,677 WARN L227 SmtUtils]: Spent 6.28s on a formula simplification. DAG size of input: 149 DAG size of output: 43 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-14 11:45:01,988 WARN L227 SmtUtils]: Spent 1.19m on a formula simplification. DAG size of input: 198 DAG size of output: 62 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-14 11:45:04,001 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-14 11:45:06,022 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-14 11:45:29,738 WARN L227 SmtUtils]: Spent 15.60s on a formula simplification. DAG size of input: 107 DAG size of output: 37 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-14 11:45:31,755 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-14 11:45:33,770 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-14 11:47:22,693 WARN L227 SmtUtils]: Spent 1.61m on a formula simplification. DAG size of input: 193 DAG size of output: 87 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-14 11:47:24,698 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-14 11:47:26,706 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-14 11:47:28,715 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-14 11:47:30,728 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-14 11:47:32,735 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-14 11:47:34,750 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-14 11:47:36,769 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-14 11:47:38,779 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-14 11:47:40,811 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-14 11:47:42,826 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-14 11:47:44,834 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-14 11:47:46,851 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-14 11:47:48,864 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-14 11:47:50,871 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-14 11:47:52,909 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-14 11:49:19,294 WARN L227 SmtUtils]: Spent 1.27m on a formula simplification. DAG size of input: 195 DAG size of output: 64 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-14 11:49:21,297 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-14 11:49:23,309 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-14 11:50:01,407 WARN L227 SmtUtils]: Spent 25.32s on a formula simplification. DAG size of input: 197 DAG size of output: 66 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-14 11:50:03,414 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-14 11:50:05,432 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-14 11:50:52,892 WARN L227 SmtUtils]: Spent 35.77s on a formula simplification. DAG size of input: 197 DAG size of output: 152 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-14 11:50:54,298 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-14 11:50:56,401 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-14 11:51:59,384 WARN L227 SmtUtils]: Spent 49.36s on a formula simplification. DAG size of input: 157 DAG size of output: 133 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-14 11:52:01,388 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-14 11:52:03,397 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-14 11:52:05,411 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-14 11:52:07,927 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-14 11:52:09,935 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-14 11:52:12,443 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-14 11:52:14,075 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-14 11:52:16,084 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-14 11:52:18,637 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-14 11:52:50,991 WARN L227 SmtUtils]: Spent 23.10s on a formula simplification. DAG size of input: 159 DAG size of output: 135 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-14 11:52:53,019 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-14 11:53:21,263 WARN L227 SmtUtils]: Spent 15.98s on a formula simplification. DAG size of input: 161 DAG size of output: 137 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-14 11:53:22,865 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-14 11:53:23,919 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-14 11:54:30,159 WARN L227 SmtUtils]: Spent 51.12s on a formula simplification. DAG size of input: 196 DAG size of output: 191 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-14 11:54:32,195 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-14 11:55:19,575 WARN L227 SmtUtils]: Spent 37.90s on a formula simplification. DAG size of input: 198 DAG size of output: 193 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-14 11:55:19,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 11:55:19,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-14 11:55:19,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-14 11:55:19,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-14 11:55:19,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-14 11:55:19,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-14 11:55:19,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-11-14 11:55:19,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-14 11:55:19,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-11-14 11:55:19,584 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-14 11:55:19,780 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 [2021-11-14 11:55:19,781 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-14 11:55:19,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-14 11:55:19,781 INFO L85 PathProgramCache]: Analyzing trace with hash -935808234, now seen corresponding path program 3 times [2021-11-14 11:55:19,781 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-14 11:55:19,781 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576577215] [2021-11-14 11:55:19,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-14 11:55:19,781 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-14 11:55:19,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-14 11:55:19,944 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 14 proven. 10 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-14 11:55:19,944 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-14 11:55:19,945 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576577215] [2021-11-14 11:55:19,945 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [576577215] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-14 11:55:19,945 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1405919608] [2021-11-14 11:55:19,945 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-14 11:55:19,945 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-14 11:55:19,945 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-14 11:55:19,946 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) [2021-11-14 11:55:19,950 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-14 11:55:20,031 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-11-14 11:55:20,032 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-14 11:55:20,033 INFO L263 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 25 conjunts are in the unsatisfiable core [2021-11-14 11:55:20,034 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-14 11:55:20,586 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 11 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-14 11:55:20,586 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-14 11:55:21,059 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 11 proven. 12 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-14 11:55:21,059 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1405919608] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-14 11:55:21,059 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-14 11:55:21,059 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 14, 10] total 25 [2021-11-14 11:55:21,060 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739008947] [2021-11-14 11:55:21,060 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-14 11:55:21,060 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-11-14 11:55:21,060 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-14 11:55:21,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-11-14 11:55:21,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=503, Unknown=0, NotChecked=0, Total=600 [2021-11-14 11:55:21,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-14 11:55:21,061 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-14 11:55:21,061 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 6.68) internal successors, (167), 25 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-14 11:55:21,061 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-14 11:55:21,061 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-11-14 11:55:21,061 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-11-14 11:55:21,061 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-11-14 11:55:21,061 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-11-14 11:55:21,061 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-11-14 11:55:21,061 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-11-14 11:55:21,061 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-11-14 11:55:21,061 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2021-11-14 11:55:21,061 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. Received shutdown request... [2021-11-14 11:55:27,435 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2021-11-14 11:55:27,436 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2021-11-14 11:55:27,442 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2021-11-14 11:55:27,852 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2021-11-14 11:55:28,034 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-14 11:55:28,034 WARN L594 AbstractCegarLoop]: Verification canceled: while PredicateComparison was comparing new predicate (quantifier-free) to 65 known predicates. [2021-11-14 11:55:28,036 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2021-11-14 11:55:28,036 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (2 of 4 remaining) [2021-11-14 11:55:28,036 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (1 of 4 remaining) [2021-11-14 11:55:28,036 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATION (0 of 4 remaining) [2021-11-14 11:55:28,040 INFO L732 BasicCegarLoop]: Path program histogram: [3, 2, 1, 1, 1, 1, 1] [2021-11-14 11:55:28,041 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-11-14 11:55:28,041 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-14 11:55:28,044 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.11 11:55:28 BasicIcfg [2021-11-14 11:55:28,044 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-14 11:55:28,045 INFO L158 Benchmark]: Toolchain (without parser) took 883237.92ms. Allocated memory was 341.8MB in the beginning and 436.2MB in the end (delta: 94.4MB). Free memory was 285.9MB in the beginning and 266.0MB in the end (delta: 19.9MB). Peak memory consumption was 116.2MB. Max. memory is 16.0GB. [2021-11-14 11:55:28,046 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 341.8MB. Free memory is still 304.7MB. There was no memory consumed. Max. memory is 16.0GB. [2021-11-14 11:55:28,046 INFO L158 Benchmark]: CACSL2BoogieTranslator took 236.70ms. Allocated memory is still 341.8MB. Free memory was 285.3MB in the beginning and 314.3MB in the end (delta: -29.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. [2021-11-14 11:55:28,046 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.43ms. Allocated memory is still 341.8MB. Free memory was 314.1MB in the beginning and 312.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2021-11-14 11:55:28,046 INFO L158 Benchmark]: Boogie Preprocessor took 25.07ms. Allocated memory is still 341.8MB. Free memory was 312.5MB in the beginning and 311.3MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.0GB. [2021-11-14 11:55:28,046 INFO L158 Benchmark]: RCFGBuilder took 275.62ms. Allocated memory is still 341.8MB. Free memory was 311.3MB in the beginning and 297.5MB in the end (delta: 13.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. [2021-11-14 11:55:28,046 INFO L158 Benchmark]: TraceAbstraction took 882664.67ms. Allocated memory was 341.8MB in the beginning and 436.2MB in the end (delta: 94.4MB). Free memory was 296.9MB in the beginning and 266.0MB in the end (delta: 30.9MB). Peak memory consumption was 127.6MB. Max. memory is 16.0GB. [2021-11-14 11:55:28,048 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 341.8MB. Free memory is still 304.7MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 236.70ms. Allocated memory is still 341.8MB. Free memory was 285.3MB in the beginning and 314.3MB in the end (delta: -29.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 32.43ms. Allocated memory is still 341.8MB. Free memory was 314.1MB in the beginning and 312.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 25.07ms. Allocated memory is still 341.8MB. Free memory was 312.5MB in the beginning and 311.3MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.0GB. * RCFGBuilder took 275.62ms. Allocated memory is still 341.8MB. Free memory was 311.3MB in the beginning and 297.5MB in the end (delta: 13.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. * TraceAbstraction took 882664.67ms. Allocated memory was 341.8MB in the beginning and 436.2MB in the end (delta: 94.4MB). Free memory was 296.9MB in the beginning and 266.0MB in the end (delta: 30.9MB). Peak memory consumption was 127.6MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 6666, positive: 4910, positive conditional: 3955, positive unconditional: 955, negative: 1756, negative conditional: 1746, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 4920, positive: 4910, positive conditional: 3955, positive unconditional: 955, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 4920, positive: 4910, positive conditional: 3955, positive unconditional: 955, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 4920, positive: 4910, positive conditional: 3398, positive unconditional: 1512, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 4920, positive: 4910, positive conditional: 1811, positive unconditional: 3099, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 4920, positive: 4910, positive conditional: 1811, positive unconditional: 3099, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 936, positive: 926, positive conditional: 0, positive unconditional: 926, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 936, positive: 925, positive conditional: 0, positive unconditional: 925, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 11, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , SemanticIndependenceRelation.Query Time [ms]: [ total: 2150, positive: 13, positive conditional: 0, positive unconditional: 13, negative: 107, negative conditional: 0, negative unconditional: 107, unknown: 2030, unknown conditional: 0, unknown unconditional: 2030] ], Cache Queries: [ total: 4920, positive: 3984, positive conditional: 1811, positive unconditional: 2173, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 936, unknown conditional: 0, unknown unconditional: 936] , Statistics on independence cache: Total cache size (in pairs): 936, Positive cache size: 926, Positive conditional cache size: 0, Positive unconditional cache size: 926, Negative cache size: 10, Negative conditional cache size: 0, Negative unconditional cache size: 10, Eliminated conditions: 1587, Maximal queried relation: 0, Independence queries for same thread: 1746 - StatisticsResult: Persistent set benchmarks Persistent set computation time: 2187.45ms, Number of persistent set computation: 105, Number of trivial persistent sets: 75, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 965, positive: 955, positive conditional: 0, positive unconditional: 955, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 6666, positive: 4910, positive conditional: 3955, positive unconditional: 955, negative: 1756, negative conditional: 1746, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 4920, positive: 4910, positive conditional: 3955, positive unconditional: 955, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 4920, positive: 4910, positive conditional: 3955, positive unconditional: 955, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 4920, positive: 4910, positive conditional: 3398, positive unconditional: 1512, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 4920, positive: 4910, positive conditional: 1811, positive unconditional: 3099, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 4920, positive: 4910, positive conditional: 1811, positive unconditional: 3099, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 936, positive: 926, positive conditional: 0, positive unconditional: 926, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 936, positive: 925, positive conditional: 0, positive unconditional: 925, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 11, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , SemanticIndependenceRelation.Query Time [ms]: [ total: 2150, positive: 13, positive conditional: 0, positive unconditional: 13, negative: 107, negative conditional: 0, negative unconditional: 107, unknown: 2030, unknown conditional: 0, unknown unconditional: 2030] ], Cache Queries: [ total: 4920, positive: 3984, positive conditional: 1811, positive unconditional: 2173, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 936, unknown conditional: 0, unknown unconditional: 936] , Statistics on independence cache: Total cache size (in pairs): 936, Positive cache size: 926, Positive conditional cache size: 0, Positive unconditional cache size: 926, Negative cache size: 10, Negative conditional cache size: 0, Negative unconditional cache size: 10, Eliminated conditions: 1587, Maximal queried relation: 0, Independence queries for same thread: 1746 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 105]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while PredicateComparison was comparing new predicate (quantifier-free) to 65 known predicates. - TimeoutResultAtElement [Line: 97]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PredicateComparison was comparing new predicate (quantifier-free) to 65 known predicates. - TimeoutResultAtElement [Line: 98]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PredicateComparison was comparing new predicate (quantifier-free) to 65 known predicates. - TimeoutResultAtElement [Line: 99]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PredicateComparison was comparing new predicate (quantifier-free) to 65 known predicates. - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 7 procedures, 113 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 882.6s, OverallIterations: 10, TraceHistogramMax: 0, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 723.2s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 138, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 157.4s InterpolantComputationTime, 1169 NumberOfCodeBlocks, 1169 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 1554 ConstructedInterpolants, 40 QuantifiedInterpolants, 26440 SizeOfPredicates, 47 NumberOfNonLiveVariables, 922 ConjunctsInSsa, 103 ConjunctsInUnsatCore, 20 InterpolantComputations, 5 PerfectInterpolantSequences, 58/156 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown