/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-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/bench-exp2x6.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-bc79526 [2022-01-18 00:30:28,707 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-18 00:30:28,709 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-18 00:30:28,762 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-01-18 00:30:28,769 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-18 00:30:28,770 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-18 00:30:28,778 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-18 00:30:28,779 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-18 00:30:28,779 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-18 00:30:28,780 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-18 00:30:28,781 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-18 00:30:28,783 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-18 00:30:28,784 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-18 00:30:28,792 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-18 00:30:28,793 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-18 00:30:28,793 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-18 00:30:28,795 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-18 00:30:28,801 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-18 00:30:28,802 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-18 00:30:28,802 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-18 00:30:28,809 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-FA-NoLbe.epf [2022-01-18 00:30:28,826 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-18 00:30:28,826 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-18 00:30:28,827 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-18 00:30:28,827 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-18 00:30:28,827 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-18 00:30:28,827 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-18 00:30:28,828 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-18 00:30:28,828 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-18 00:30:28,828 INFO L138 SettingsManager]: * Use SBE=true [2022-01-18 00:30:28,828 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-18 00:30:28,828 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-18 00:30:28,828 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-18 00:30:28,829 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-18 00:30:28,829 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-18 00:30:28,829 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-18 00:30:28,829 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-18 00:30:28,829 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-18 00:30:28,829 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-18 00:30:28,829 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-18 00:30:28,829 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-18 00:30:28,829 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-18 00:30:28,830 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-18 00:30:28,830 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-18 00:30:28,830 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-18 00:30:28,830 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-18 00:30:28,830 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-18 00:30:28,830 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-18 00:30:28,830 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-18 00:30:28,830 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-18 00:30:28,831 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-18 00:30:28,831 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-18 00:30:28,831 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-18 00:30:28,831 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-18 00:30:28,831 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-18 00:30:29,049 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-18 00:30:29,065 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-18 00:30:29,067 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-18 00:30:29,068 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-18 00:30:29,071 INFO L275 PluginConnector]: CDTParser initialized [2022-01-18 00:30:29,073 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/bench-exp2x6.wvr.c [2022-01-18 00:30:29,139 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e969fb42c/2ec836e3a46d4004a175773b25de72fe/FLAGbb403efd8 [2022-01-18 00:30:29,506 INFO L306 CDTParser]: Found 1 translation units. [2022-01-18 00:30:29,507 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/bench-exp2x6.wvr.c [2022-01-18 00:30:29,519 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e969fb42c/2ec836e3a46d4004a175773b25de72fe/FLAGbb403efd8 [2022-01-18 00:30:29,535 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e969fb42c/2ec836e3a46d4004a175773b25de72fe [2022-01-18 00:30:29,538 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-18 00:30:29,541 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-18 00:30:29,545 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-18 00:30:29,545 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-18 00:30:29,548 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-18 00:30:29,548 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.01 12:30:29" (1/1) ... [2022-01-18 00:30:29,550 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@646be534 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 12:30:29, skipping insertion in model container [2022-01-18 00:30:29,550 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.01 12:30:29" (1/1) ... [2022-01-18 00:30:29,556 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-18 00:30:29,575 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-18 00:30:29,786 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/bench-exp2x6.wvr.c[2453,2466] [2022-01-18 00:30:29,789 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-18 00:30:29,795 INFO L203 MainTranslator]: Completed pre-run [2022-01-18 00:30:29,811 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/bench-exp2x6.wvr.c[2453,2466] [2022-01-18 00:30:29,812 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-18 00:30:29,821 INFO L208 MainTranslator]: Completed translation [2022-01-18 00:30:29,822 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 12:30:29 WrapperNode [2022-01-18 00:30:29,822 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-18 00:30:29,823 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-18 00:30:29,823 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-18 00:30:29,823 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-18 00:30:29,828 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 12:30:29" (1/1) ... [2022-01-18 00:30:29,833 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 12:30:29" (1/1) ... [2022-01-18 00:30:29,849 INFO L137 Inliner]: procedures = 20, calls = 32, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 91 [2022-01-18 00:30:29,849 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-18 00:30:29,850 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-18 00:30:29,850 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-18 00:30:29,850 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-18 00:30:29,857 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 12:30:29" (1/1) ... [2022-01-18 00:30:29,857 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 12:30:29" (1/1) ... [2022-01-18 00:30:29,860 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 12:30:29" (1/1) ... [2022-01-18 00:30:29,860 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 12:30:29" (1/1) ... [2022-01-18 00:30:29,865 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 12:30:29" (1/1) ... [2022-01-18 00:30:29,869 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 12:30:29" (1/1) ... [2022-01-18 00:30:29,870 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 12:30:29" (1/1) ... [2022-01-18 00:30:29,872 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-18 00:30:29,873 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-18 00:30:29,873 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-18 00:30:29,873 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-18 00:30:29,874 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 12:30:29" (1/1) ... [2022-01-18 00:30:29,884 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-18 00:30:29,894 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 00:30:29,907 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) [2022-01-18 00:30:29,914 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 [2022-01-18 00:30:29,949 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-18 00:30:29,950 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-01-18 00:30:29,950 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-01-18 00:30:29,950 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-01-18 00:30:29,950 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-01-18 00:30:29,950 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-01-18 00:30:29,951 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-01-18 00:30:29,951 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-01-18 00:30:29,951 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-01-18 00:30:29,951 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-18 00:30:29,951 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-18 00:30:29,951 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-18 00:30:29,951 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-18 00:30:29,951 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-18 00:30:29,952 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-18 00:30:29,952 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-18 00:30:29,953 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-01-18 00:30:30,011 INFO L234 CfgBuilder]: Building ICFG [2022-01-18 00:30:30,012 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-18 00:30:30,257 INFO L275 CfgBuilder]: Performing block encoding [2022-01-18 00:30:30,265 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-18 00:30:30,265 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-01-18 00:30:30,271 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 12:30:30 BoogieIcfgContainer [2022-01-18 00:30:30,272 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-18 00:30:30,273 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-18 00:30:30,273 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-18 00:30:30,276 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-18 00:30:30,276 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.01 12:30:29" (1/3) ... [2022-01-18 00:30:30,277 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48121829 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.01 12:30:30, skipping insertion in model container [2022-01-18 00:30:30,277 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 12:30:29" (2/3) ... [2022-01-18 00:30:30,277 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48121829 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.01 12:30:30, skipping insertion in model container [2022-01-18 00:30:30,277 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 12:30:30" (3/3) ... [2022-01-18 00:30:30,278 INFO L111 eAbstractionObserver]: Analyzing ICFG bench-exp2x6.wvr.c [2022-01-18 00:30:30,282 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-01-18 00:30:30,282 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-18 00:30:30,283 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-18 00:30:30,283 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-18 00:30:30,326 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:30:30,326 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:30:30,327 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:30:30,327 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:30:30,328 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:30:30,329 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:30:30,329 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:30:30,329 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:30:30,330 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:30:30,331 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:30:30,331 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:30:30,331 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:30:30,332 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:30:30,333 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:30:30,333 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:30:30,333 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:30:30,336 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:30:30,336 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:30:30,338 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:30:30,338 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:30:30,339 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:30:30,339 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:30:30,340 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:30:30,340 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 00:30:30,346 INFO L148 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-01-18 00:30:30,380 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-18 00:30:30,385 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=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-18 00:30:30,385 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-01-18 00:30:30,395 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 140 places, 137 transitions, 306 flow [2022-01-18 00:30:31,363 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 21692 states, 21691 states have (on average 4.990779586003412) internal successors, (108255), 21691 states have internal predecessors, (108255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:30:31,423 INFO L276 IsEmpty]: Start isEmpty. Operand has 21692 states, 21691 states have (on average 4.990779586003412) internal successors, (108255), 21691 states have internal predecessors, (108255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:30:31,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-01-18 00:30:31,707 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:30:31,707 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:30:31,708 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 00:30:31,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:30:31,717 INFO L85 PathProgramCache]: Analyzing trace with hash -1092536451, now seen corresponding path program 1 times [2022-01-18 00:30:31,724 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:30:31,724 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32880506] [2022-01-18 00:30:31,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:30:31,725 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:30:31,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:30:31,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:30:31,980 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:30:31,980 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32880506] [2022-01-18 00:30:31,981 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [32880506] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:30:31,981 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:30:31,981 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-18 00:30:31,982 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991293538] [2022-01-18 00:30:31,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:30:31,988 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-18 00:30:31,988 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:30:32,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-18 00:30:32,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-18 00:30:32,065 INFO L87 Difference]: Start difference. First operand has 21692 states, 21691 states have (on average 4.990779586003412) internal successors, (108255), 21691 states have internal predecessors, (108255), 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) Second operand has 2 states, 2 states have (on average 46.0) internal successors, (92), 2 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:30:32,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:30:32,634 INFO L93 Difference]: Finished difference Result 21692 states and 98180 transitions. [2022-01-18 00:30:32,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-18 00:30:32,636 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 46.0) internal successors, (92), 2 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 92 [2022-01-18 00:30:32,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:30:33,063 INFO L225 Difference]: With dead ends: 21692 [2022-01-18 00:30:33,063 INFO L226 Difference]: Without dead ends: 21690 [2022-01-18 00:30:33,065 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-18 00:30:33,068 INFO L933 BasicCegarLoop]: 106 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 00:30:33,068 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 106 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 00:30:33,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21690 states. [2022-01-18 00:30:33,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21690 to 21690. [2022-01-18 00:30:33,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21690 states, 21689 states have (on average 4.526626400479506) internal successors, (98178), 21689 states have internal predecessors, (98178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:30:34,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21690 states to 21690 states and 98178 transitions. [2022-01-18 00:30:34,342 INFO L78 Accepts]: Start accepts. Automaton has 21690 states and 98178 transitions. Word has length 92 [2022-01-18 00:30:34,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:30:34,342 INFO L470 AbstractCegarLoop]: Abstraction has 21690 states and 98178 transitions. [2022-01-18 00:30:34,343 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 46.0) internal successors, (92), 2 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:30:34,343 INFO L276 IsEmpty]: Start isEmpty. Operand 21690 states and 98178 transitions. [2022-01-18 00:30:34,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-01-18 00:30:34,439 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:30:34,439 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:30:34,440 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-18 00:30:34,440 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 00:30:34,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:30:34,441 INFO L85 PathProgramCache]: Analyzing trace with hash -1883690018, now seen corresponding path program 1 times [2022-01-18 00:30:34,441 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:30:34,441 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054528244] [2022-01-18 00:30:34,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:30:34,442 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:30:34,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:30:35,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:30:35,067 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:30:35,071 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054528244] [2022-01-18 00:30:35,072 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1054528244] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:30:35,072 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:30:35,072 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 00:30:35,072 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906447124] [2022-01-18 00:30:35,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:30:35,074 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-18 00:30:35,074 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:30:35,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-18 00:30:35,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-01-18 00:30:35,075 INFO L87 Difference]: Start difference. First operand 21690 states and 98178 transitions. Second operand has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:30:35,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:30:35,987 INFO L93 Difference]: Finished difference Result 25591 states and 115324 transitions. [2022-01-18 00:30:35,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-18 00:30:35,987 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 92 [2022-01-18 00:30:35,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:30:36,225 INFO L225 Difference]: With dead ends: 25591 [2022-01-18 00:30:36,225 INFO L226 Difference]: Without dead ends: 25144 [2022-01-18 00:30:36,229 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2022-01-18 00:30:36,230 INFO L933 BasicCegarLoop]: 88 mSDtfsCounter, 125 mSDsluCounter, 229 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 287 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 00:30:36,231 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [125 Valid, 287 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 00:30:36,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25144 states. [2022-01-18 00:30:37,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25144 to 23029. [2022-01-18 00:30:37,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23029 states, 23028 states have (on average 4.511377453534827) internal successors, (103888), 23028 states have internal predecessors, (103888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:30:37,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23029 states to 23029 states and 103888 transitions. [2022-01-18 00:30:37,206 INFO L78 Accepts]: Start accepts. Automaton has 23029 states and 103888 transitions. Word has length 92 [2022-01-18 00:30:37,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:30:37,207 INFO L470 AbstractCegarLoop]: Abstraction has 23029 states and 103888 transitions. [2022-01-18 00:30:37,207 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:30:37,207 INFO L276 IsEmpty]: Start isEmpty. Operand 23029 states and 103888 transitions. [2022-01-18 00:30:37,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-01-18 00:30:37,462 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:30:37,484 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:30:37,484 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-18 00:30:37,484 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 00:30:37,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:30:37,485 INFO L85 PathProgramCache]: Analyzing trace with hash -660876130, now seen corresponding path program 1 times [2022-01-18 00:30:37,485 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:30:37,485 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996765171] [2022-01-18 00:30:37,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:30:37,485 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:30:37,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:30:37,721 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:30:37,721 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:30:37,722 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996765171] [2022-01-18 00:30:37,722 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1996765171] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:30:37,723 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:30:37,723 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 00:30:37,723 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186416234] [2022-01-18 00:30:37,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:30:37,724 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-18 00:30:37,724 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:30:37,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-18 00:30:37,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-18 00:30:37,726 INFO L87 Difference]: Start difference. First operand 23029 states and 103888 transitions. Second operand has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 6 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:30:38,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:30:38,176 INFO L93 Difference]: Finished difference Result 32048 states and 143540 transitions. [2022-01-18 00:30:38,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-18 00:30:38,177 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 6 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2022-01-18 00:30:38,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:30:38,617 INFO L225 Difference]: With dead ends: 32048 [2022-01-18 00:30:38,617 INFO L226 Difference]: Without dead ends: 31739 [2022-01-18 00:30:38,618 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-01-18 00:30:38,623 INFO L933 BasicCegarLoop]: 129 mSDtfsCounter, 192 mSDsluCounter, 364 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 192 SdHoareTripleChecker+Valid, 462 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 00:30:38,625 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [192 Valid, 462 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 00:30:38,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31739 states. [2022-01-18 00:30:39,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31739 to 25391. [2022-01-18 00:30:39,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25391 states, 25390 states have (on average 4.498227648680583) internal successors, (114210), 25390 states have internal predecessors, (114210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:30:39,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25391 states to 25391 states and 114210 transitions. [2022-01-18 00:30:39,718 INFO L78 Accepts]: Start accepts. Automaton has 25391 states and 114210 transitions. Word has length 97 [2022-01-18 00:30:39,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:30:39,718 INFO L470 AbstractCegarLoop]: Abstraction has 25391 states and 114210 transitions. [2022-01-18 00:30:39,718 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 6 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:30:39,719 INFO L276 IsEmpty]: Start isEmpty. Operand 25391 states and 114210 transitions. [2022-01-18 00:30:39,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-01-18 00:30:39,791 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:30:39,791 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:30:39,791 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-18 00:30:39,792 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 00:30:39,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:30:39,792 INFO L85 PathProgramCache]: Analyzing trace with hash -920447929, now seen corresponding path program 1 times [2022-01-18 00:30:39,792 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:30:39,792 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718610496] [2022-01-18 00:30:39,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:30:39,793 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:30:39,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:30:40,019 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:30:40,019 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:30:40,019 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718610496] [2022-01-18 00:30:40,019 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [718610496] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:30:40,019 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:30:40,019 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 00:30:40,020 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344128016] [2022-01-18 00:30:40,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:30:40,020 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-18 00:30:40,020 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:30:40,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-18 00:30:40,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-18 00:30:40,021 INFO L87 Difference]: Start difference. First operand 25391 states and 114210 transitions. Second operand has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 7 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:30:40,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:30:40,885 INFO L93 Difference]: Finished difference Result 39298 states and 174131 transitions. [2022-01-18 00:30:40,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-18 00:30:40,886 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 7 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2022-01-18 00:30:40,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:30:41,120 INFO L225 Difference]: With dead ends: 39298 [2022-01-18 00:30:41,120 INFO L226 Difference]: Without dead ends: 39298 [2022-01-18 00:30:41,120 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-01-18 00:30:41,121 INFO L933 BasicCegarLoop]: 117 mSDtfsCounter, 216 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 361 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 00:30:41,121 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [216 Valid, 361 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 00:30:41,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39298 states. [2022-01-18 00:30:42,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39298 to 31001. [2022-01-18 00:30:42,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31001 states, 31000 states have (on average 4.461967741935484) internal successors, (138321), 31000 states have internal predecessors, (138321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:30:42,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31001 states to 31001 states and 138321 transitions. [2022-01-18 00:30:42,272 INFO L78 Accepts]: Start accepts. Automaton has 31001 states and 138321 transitions. Word has length 97 [2022-01-18 00:30:42,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:30:42,272 INFO L470 AbstractCegarLoop]: Abstraction has 31001 states and 138321 transitions. [2022-01-18 00:30:42,272 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 7 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:30:42,273 INFO L276 IsEmpty]: Start isEmpty. Operand 31001 states and 138321 transitions. [2022-01-18 00:30:42,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-01-18 00:30:42,363 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:30:42,363 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:30:42,364 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-18 00:30:42,364 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 00:30:42,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:30:42,364 INFO L85 PathProgramCache]: Analyzing trace with hash 1969505223, now seen corresponding path program 2 times [2022-01-18 00:30:42,365 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:30:42,365 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928403676] [2022-01-18 00:30:42,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:30:42,365 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:30:42,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:30:42,917 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:30:42,918 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:30:42,918 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [928403676] [2022-01-18 00:30:42,918 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [928403676] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:30:42,918 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:30:42,918 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 00:30:42,918 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949173220] [2022-01-18 00:30:42,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:30:42,920 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-18 00:30:42,920 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:30:42,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-18 00:30:42,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-01-18 00:30:42,921 INFO L87 Difference]: Start difference. First operand 31001 states and 138321 transitions. Second operand has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 6 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:30:43,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:30:43,368 INFO L93 Difference]: Finished difference Result 32134 states and 142799 transitions. [2022-01-18 00:30:43,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-18 00:30:43,369 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 6 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2022-01-18 00:30:43,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:30:43,486 INFO L225 Difference]: With dead ends: 32134 [2022-01-18 00:30:43,487 INFO L226 Difference]: Without dead ends: 31990 [2022-01-18 00:30:43,487 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2022-01-18 00:30:43,488 INFO L933 BasicCegarLoop]: 106 mSDtfsCounter, 118 mSDsluCounter, 211 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 295 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 00:30:43,488 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [118 Valid, 295 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 00:30:43,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31990 states. [2022-01-18 00:30:44,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31990 to 30974. [2022-01-18 00:30:44,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30974 states, 30973 states have (on average 4.458399250960514) internal successors, (138090), 30973 states have internal predecessors, (138090), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:30:44,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30974 states to 30974 states and 138090 transitions. [2022-01-18 00:30:44,539 INFO L78 Accepts]: Start accepts. Automaton has 30974 states and 138090 transitions. Word has length 97 [2022-01-18 00:30:44,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:30:44,540 INFO L470 AbstractCegarLoop]: Abstraction has 30974 states and 138090 transitions. [2022-01-18 00:30:44,540 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 6 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:30:44,540 INFO L276 IsEmpty]: Start isEmpty. Operand 30974 states and 138090 transitions. [2022-01-18 00:30:44,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-01-18 00:30:44,620 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:30:44,620 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:30:44,621 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-18 00:30:44,621 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 00:30:44,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:30:44,621 INFO L85 PathProgramCache]: Analyzing trace with hash -734856798, now seen corresponding path program 2 times [2022-01-18 00:30:44,622 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:30:44,622 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092813610] [2022-01-18 00:30:44,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:30:44,622 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:30:44,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:30:44,841 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:30:44,841 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:30:44,841 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1092813610] [2022-01-18 00:30:44,841 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1092813610] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 00:30:44,842 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1963433985] [2022-01-18 00:30:44,842 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-18 00:30:44,842 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 00:30:44,842 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 00:30:44,844 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 00:30:44,866 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-01-18 00:30:44,987 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-01-18 00:30:44,988 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 00:30:44,990 INFO L263 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 7 conjunts are in the unsatisfiable core [2022-01-18 00:30:44,995 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 00:30:45,791 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:30:45,792 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 00:30:46,146 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:30:46,146 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1963433985] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 00:30:46,146 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 00:30:46,147 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 14 [2022-01-18 00:30:46,147 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673084234] [2022-01-18 00:30:46,147 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 00:30:46,147 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-18 00:30:46,147 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:30:46,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-18 00:30:46,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2022-01-18 00:30:46,148 INFO L87 Difference]: Start difference. First operand 30974 states and 138090 transitions. Second operand has 14 states, 14 states have (on average 12.428571428571429) internal successors, (174), 14 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:30:47,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:30:47,224 INFO L93 Difference]: Finished difference Result 43530 states and 193891 transitions. [2022-01-18 00:30:47,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-18 00:30:47,225 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 12.428571428571429) internal successors, (174), 14 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2022-01-18 00:30:47,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:30:47,465 INFO L225 Difference]: With dead ends: 43530 [2022-01-18 00:30:47,465 INFO L226 Difference]: Without dead ends: 43530 [2022-01-18 00:30:47,465 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 186 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=147, Invalid=359, Unknown=0, NotChecked=0, Total=506 [2022-01-18 00:30:47,466 INFO L933 BasicCegarLoop]: 113 mSDtfsCounter, 626 mSDsluCounter, 1047 mSDsCounter, 0 mSdLazyCounter, 445 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 626 SdHoareTripleChecker+Valid, 1065 SdHoareTripleChecker+Invalid, 465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 445 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 00:30:47,466 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [626 Valid, 1065 Invalid, 465 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 445 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 00:30:47,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43530 states. [2022-01-18 00:30:48,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43530 to 33787. [2022-01-18 00:30:48,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33787 states, 33786 states have (on average 4.468448469780382) internal successors, (150971), 33786 states have internal predecessors, (150971), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:30:49,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33787 states to 33787 states and 150971 transitions. [2022-01-18 00:30:49,131 INFO L78 Accepts]: Start accepts. Automaton has 33787 states and 150971 transitions. Word has length 97 [2022-01-18 00:30:49,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:30:49,132 INFO L470 AbstractCegarLoop]: Abstraction has 33787 states and 150971 transitions. [2022-01-18 00:30:49,132 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 12.428571428571429) internal successors, (174), 14 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:30:49,132 INFO L276 IsEmpty]: Start isEmpty. Operand 33787 states and 150971 transitions. [2022-01-18 00:30:49,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-01-18 00:30:49,225 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:30:49,225 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:30:49,252 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-01-18 00:30:49,448 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-01-18 00:30:49,448 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 00:30:49,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:30:49,449 INFO L85 PathProgramCache]: Analyzing trace with hash 1260665222, now seen corresponding path program 1 times [2022-01-18 00:30:49,449 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:30:49,449 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564161594] [2022-01-18 00:30:49,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:30:49,450 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:30:49,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:30:49,665 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:30:49,665 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:30:49,665 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564161594] [2022-01-18 00:30:49,666 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1564161594] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:30:49,666 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:30:49,666 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 00:30:49,666 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727717275] [2022-01-18 00:30:49,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:30:49,666 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-18 00:30:49,666 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:30:49,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-18 00:30:49,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-01-18 00:30:49,667 INFO L87 Difference]: Start difference. First operand 33787 states and 150971 transitions. Second operand has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 6 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:30:50,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:30:50,351 INFO L93 Difference]: Finished difference Result 34921 states and 154991 transitions. [2022-01-18 00:30:50,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-18 00:30:50,356 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 6 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2022-01-18 00:30:50,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:30:50,498 INFO L225 Difference]: With dead ends: 34921 [2022-01-18 00:30:50,498 INFO L226 Difference]: Without dead ends: 34408 [2022-01-18 00:30:50,499 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2022-01-18 00:30:50,499 INFO L933 BasicCegarLoop]: 112 mSDtfsCounter, 86 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 324 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 00:30:50,500 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [86 Valid, 324 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 00:30:50,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34408 states. [2022-01-18 00:30:51,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34408 to 33409. [2022-01-18 00:30:51,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33409 states, 33408 states have (on average 4.469438457854406) internal successors, (149315), 33408 states have internal predecessors, (149315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:30:51,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33409 states to 33409 states and 149315 transitions. [2022-01-18 00:30:51,957 INFO L78 Accepts]: Start accepts. Automaton has 33409 states and 149315 transitions. Word has length 97 [2022-01-18 00:30:51,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:30:51,957 INFO L470 AbstractCegarLoop]: Abstraction has 33409 states and 149315 transitions. [2022-01-18 00:30:51,957 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 6 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:30:51,957 INFO L276 IsEmpty]: Start isEmpty. Operand 33409 states and 149315 transitions. [2022-01-18 00:30:52,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-01-18 00:30:52,076 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:30:52,076 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:30:52,077 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-18 00:30:52,077 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 00:30:52,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:30:52,077 INFO L85 PathProgramCache]: Analyzing trace with hash -334142793, now seen corresponding path program 1 times [2022-01-18 00:30:52,077 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:30:52,077 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137987633] [2022-01-18 00:30:52,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:30:52,077 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:30:52,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:30:52,165 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:30:52,165 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:30:52,165 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137987633] [2022-01-18 00:30:52,165 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2137987633] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 00:30:52,165 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1982557980] [2022-01-18 00:30:52,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:30:52,166 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 00:30:52,166 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 00:30:52,168 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) [2022-01-18 00:30:52,192 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-01-18 00:30:52,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:30:52,260 INFO L263 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 7 conjunts are in the unsatisfiable core [2022-01-18 00:30:52,266 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 00:30:52,924 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:30:52,924 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 00:30:53,199 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:30:53,199 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1982557980] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 00:30:53,199 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 00:30:53,199 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 10 [2022-01-18 00:30:53,199 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508230532] [2022-01-18 00:30:53,200 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 00:30:53,200 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 00:30:53,200 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:30:53,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 00:30:53,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-01-18 00:30:53,201 INFO L87 Difference]: Start difference. First operand 33409 states and 149315 transitions. Second operand has 10 states, 10 states have (on average 12.2) internal successors, (122), 10 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:30:53,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:30:53,957 INFO L93 Difference]: Finished difference Result 63556 states and 281343 transitions. [2022-01-18 00:30:53,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-01-18 00:30:53,957 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.2) internal successors, (122), 10 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2022-01-18 00:30:53,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:30:54,281 INFO L225 Difference]: With dead ends: 63556 [2022-01-18 00:30:54,282 INFO L226 Difference]: Without dead ends: 63556 [2022-01-18 00:30:54,282 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 188 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=77, Invalid=163, Unknown=0, NotChecked=0, Total=240 [2022-01-18 00:30:54,282 INFO L933 BasicCegarLoop]: 150 mSDtfsCounter, 755 mSDsluCounter, 509 mSDsCounter, 0 mSdLazyCounter, 197 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 755 SdHoareTripleChecker+Valid, 607 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 00:30:54,283 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [755 Valid, 607 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 197 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 00:30:54,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63556 states. [2022-01-18 00:30:55,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63556 to 38026. [2022-01-18 00:30:55,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38026 states, 38025 states have (on average 4.495095332018409) internal successors, (170926), 38025 states have internal predecessors, (170926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:30:56,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38026 states to 38026 states and 170926 transitions. [2022-01-18 00:30:56,229 INFO L78 Accepts]: Start accepts. Automaton has 38026 states and 170926 transitions. Word has length 97 [2022-01-18 00:30:56,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:30:56,229 INFO L470 AbstractCegarLoop]: Abstraction has 38026 states and 170926 transitions. [2022-01-18 00:30:56,229 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.2) internal successors, (122), 10 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:30:56,230 INFO L276 IsEmpty]: Start isEmpty. Operand 38026 states and 170926 transitions. [2022-01-18 00:30:56,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-01-18 00:30:56,324 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:30:56,324 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:30:56,349 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-01-18 00:30:56,539 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,SelfDestructingSolverStorable7 [2022-01-18 00:30:56,539 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 00:30:56,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:30:56,540 INFO L85 PathProgramCache]: Analyzing trace with hash 388933738, now seen corresponding path program 2 times [2022-01-18 00:30:56,540 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:30:56,540 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375267600] [2022-01-18 00:30:56,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:30:56,540 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:30:56,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:30:56,627 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:30:56,627 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:30:56,627 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1375267600] [2022-01-18 00:30:56,627 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1375267600] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 00:30:56,627 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 00:30:56,627 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 00:30:56,628 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14066980] [2022-01-18 00:30:56,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 00:30:56,628 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-18 00:30:56,628 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 00:30:56,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-18 00:30:56,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-18 00:30:56,629 INFO L87 Difference]: Start difference. First operand 38026 states and 170926 transitions. Second operand has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 6 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:30:57,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 00:30:57,238 INFO L93 Difference]: Finished difference Result 63142 states and 279569 transitions. [2022-01-18 00:30:57,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-18 00:30:57,238 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 6 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2022-01-18 00:30:57,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 00:30:58,095 INFO L225 Difference]: With dead ends: 63142 [2022-01-18 00:30:58,096 INFO L226 Difference]: Without dead ends: 63142 [2022-01-18 00:30:58,096 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-01-18 00:30:58,096 INFO L933 BasicCegarLoop]: 142 mSDtfsCounter, 301 mSDsluCounter, 334 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 301 SdHoareTripleChecker+Valid, 448 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 00:30:58,097 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [301 Valid, 448 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 00:30:58,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63142 states. [2022-01-18 00:30:59,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63142 to 41404. [2022-01-18 00:30:59,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41404 states, 41403 states have (on average 4.497814168055455) internal successors, (186223), 41403 states have internal predecessors, (186223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:30:59,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41404 states to 41404 states and 186223 transitions. [2022-01-18 00:30:59,854 INFO L78 Accepts]: Start accepts. Automaton has 41404 states and 186223 transitions. Word has length 97 [2022-01-18 00:30:59,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 00:30:59,855 INFO L470 AbstractCegarLoop]: Abstraction has 41404 states and 186223 transitions. [2022-01-18 00:30:59,855 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 6 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 00:30:59,855 INFO L276 IsEmpty]: Start isEmpty. Operand 41404 states and 186223 transitions. [2022-01-18 00:30:59,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-01-18 00:30:59,962 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 00:30:59,962 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 00:30:59,962 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-18 00:30:59,962 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-18 00:30:59,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 00:30:59,962 INFO L85 PathProgramCache]: Analyzing trace with hash 796018631, now seen corresponding path program 1 times [2022-01-18 00:30:59,962 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 00:30:59,963 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034319519] [2022-01-18 00:30:59,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:30:59,963 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 00:31:00,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:31:18,886 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 00:31:18,886 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 00:31:18,887 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2034319519] [2022-01-18 00:31:18,887 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2034319519] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 00:31:18,887 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1819685963] [2022-01-18 00:31:18,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 00:31:18,887 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 00:31:18,887 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 00:31:18,888 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) [2022-01-18 00:31:18,889 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-01-18 00:42:04,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 00:42:04,331 INFO L263 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 32 conjunts are in the unsatisfiable core [2022-01-18 00:42:04,334 INFO L286 TraceCheckSpWp]: Computing forward predicates... Received shutdown request... [2022-01-18 00:44:51,955 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 [2022-01-18 00:44:51,955 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-01-18 00:44:52,399 WARN L244 SmtUtils]: Removed 1 from assertion stack [2022-01-18 00:44:52,400 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2022-01-18 00:44:52,412 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-01-18 00:44:52,600 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 00:44:52,601 WARN L594 AbstractCegarLoop]: Verification canceled: while BasicCegarLoop was analyzing trace of length 103 with TraceHistMax 1,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-403-2-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∨-2-1 context. [2022-01-18 00:44:52,603 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (3 of 5 remaining) [2022-01-18 00:44:52,603 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (2 of 5 remaining) [2022-01-18 00:44:52,603 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATION (1 of 5 remaining) [2022-01-18 00:44:52,603 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3INUSE_VIOLATION (0 of 5 remaining) [2022-01-18 00:44:52,605 INFO L732 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1, 1, 1, 1] [2022-01-18 00:44:52,607 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-01-18 00:44:52,607 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-18 00:44:52,609 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.01 12:44:52 BasicIcfg [2022-01-18 00:44:52,610 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-18 00:44:52,610 INFO L158 Benchmark]: Toolchain (without parser) took 863069.39ms. Allocated memory was 381.7MB in the beginning and 13.2GB in the end (delta: 12.8GB). Free memory was 326.6MB in the beginning and 9.8GB in the end (delta: -9.5GB). Peak memory consumption was 10.3GB. Max. memory is 16.0GB. [2022-01-18 00:44:52,610 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 381.7MB. Free memory was 342.8MB in the beginning and 342.7MB in the end (delta: 69.4kB). There was no memory consumed. Max. memory is 16.0GB. [2022-01-18 00:44:52,611 INFO L158 Benchmark]: CACSL2BoogieTranslator took 277.35ms. Allocated memory was 381.7MB in the beginning and 553.6MB in the end (delta: 172.0MB). Free memory was 326.3MB in the beginning and 526.1MB in the end (delta: -199.8MB). Peak memory consumption was 7.0MB. Max. memory is 16.0GB. [2022-01-18 00:44:52,611 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.68ms. Allocated memory is still 553.6MB. Free memory was 526.1MB in the beginning and 524.2MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-18 00:44:52,611 INFO L158 Benchmark]: Boogie Preprocessor took 22.40ms. Allocated memory is still 553.6MB. Free memory was 524.2MB in the beginning and 522.8MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-18 00:44:52,611 INFO L158 Benchmark]: RCFGBuilder took 398.74ms. Allocated memory is still 553.6MB. Free memory was 522.8MB in the beginning and 508.1MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. [2022-01-18 00:44:52,612 INFO L158 Benchmark]: TraceAbstraction took 862336.43ms. Allocated memory was 553.6MB in the beginning and 13.2GB in the end (delta: 12.7GB). Free memory was 507.5MB in the beginning and 9.8GB in the end (delta: -9.3GB). Peak memory consumption was 10.3GB. Max. memory is 16.0GB. [2022-01-18 00:44:52,613 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 381.7MB. Free memory was 342.8MB in the beginning and 342.7MB in the end (delta: 69.4kB). There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 277.35ms. Allocated memory was 381.7MB in the beginning and 553.6MB in the end (delta: 172.0MB). Free memory was 326.3MB in the beginning and 526.1MB in the end (delta: -199.8MB). Peak memory consumption was 7.0MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 26.68ms. Allocated memory is still 553.6MB. Free memory was 526.1MB in the beginning and 524.2MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 22.40ms. Allocated memory is still 553.6MB. Free memory was 524.2MB in the beginning and 522.8MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 398.74ms. Allocated memory is still 553.6MB. Free memory was 522.8MB in the beginning and 508.1MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. * TraceAbstraction took 862336.43ms. Allocated memory was 553.6MB in the beginning and 13.2GB in the end (delta: 12.7GB). Free memory was 507.5MB in the beginning and 9.8GB in the end (delta: -9.3GB). Peak memory consumption was 10.3GB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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: 104]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was analyzing trace of length 103 with TraceHistMax 1,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-403-2-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∨-2-1 context. - 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 BasicCegarLoop was analyzing trace of length 103 with TraceHistMax 1,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-403-2-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∨-2-1 context. - TimeoutResultAtElement [Line: 96]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was analyzing trace of length 103 with TraceHistMax 1,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-403-2-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∨-2-1 context. - TimeoutResultAtElement [Line: 94]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was analyzing trace of length 103 with TraceHistMax 1,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-403-2-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∨-2-1 context. - TimeoutResultAtElement [Line: 95]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was analyzing trace of length 103 with TraceHistMax 1,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-403-2-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∨-2-1 context. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 164 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 862.2s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 1.3s, AutomataDifference: 9.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2419 SdHoareTripleChecker+Valid, 1.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2419 mSDsluCounter, 3955 SdHoareTripleChecker+Invalid, 1.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3203 mSDsCounter, 61 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1645 IncrementalHoareTripleChecker+Invalid, 1706 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 61 mSolverCounterUnsat, 1063 mSDtfsCounter, 1645 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 462 GetRequests, 388 SyntacticMatches, 3 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=41404occurred in iteration=9, InterpolantAutomatonStates: 68, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 12.4s AutomataMinimizationTime, 9 MinimizatonAttempts, 75786 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 3.6s InterpolantComputationTime, 1057 NumberOfCodeBlocks, 1057 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 1238 ConstructedInterpolants, 0 QuantifiedInterpolants, 11740 SizeOfPredicates, 20 NumberOfNonLiveVariables, 514 ConjunctsInSsa, 14 ConjunctsInUnsatCore, 13 InterpolantComputations, 7 PerfectInterpolantSequences, 5/11 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