/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-PN-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_31-traces-mine-vs-mutex_true.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-bf34d27 [2022-01-18 23:28:56,764 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-18 23:28:56,765 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-18 23:28:56,816 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-18 23:28:56,816 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-18 23:28:56,817 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-18 23:28:56,817 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-18 23:28:56,818 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-18 23:28:56,821 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-18 23:28:56,821 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-18 23:28:56,822 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-18 23:28:56,823 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-18 23:28:56,823 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-18 23:28:56,823 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-18 23:28:56,824 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-18 23:28:56,824 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-18 23:28:56,825 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-18 23:28:56,825 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-18 23:28:56,826 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-18 23:28:56,827 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-18 23:28:56,828 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-18 23:28:56,835 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-18 23:28:56,836 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-18 23:28:56,837 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-18 23:28:56,838 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-18 23:28:56,842 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-18 23:28:56,843 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-18 23:28:56,843 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-18 23:28:56,844 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-PN-NoLbe.epf [2022-01-18 23:28:56,856 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-18 23:28:56,856 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-18 23:28:56,857 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-18 23:28:56,857 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-18 23:28:56,857 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-18 23:28:56,857 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-18 23:28:56,858 INFO L138 SettingsManager]: * Use SBE=true [2022-01-18 23:28:56,858 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-18 23:28:56,858 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-18 23:28:56,858 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-18 23:28:56,858 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-18 23:28:56,858 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-18 23:28:56,858 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-18 23:28:56,858 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-18 23:28:56,859 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-18 23:28:56,859 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-18 23:28:56,859 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-18 23:28:56,859 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-18 23:28:56,859 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-18 23:28:56,859 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-18 23:28:56,859 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-18 23:28:56,859 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-18 23:28:56,860 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-18 23:28:56,860 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-18 23:28:56,860 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-18 23:28:56,860 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-18 23:28:56,860 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-18 23:28:56,860 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-18 23:28:56,860 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-18 23:28:56,860 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-18 23:28:56,860 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-18 23:28:56,861 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-18 23:28:57,013 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-18 23:28:57,037 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-18 23:28:57,039 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-18 23:28:57,039 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-18 23:28:57,040 INFO L275 PluginConnector]: CDTParser initialized [2022-01-18 23:28:57,040 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_31-traces-mine-vs-mutex_true.i [2022-01-18 23:28:57,101 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/00fef1506/8b8257e816f04c7eaaad611fa0cfa074/FLAG9d2bfc4ab [2022-01-18 23:28:57,491 INFO L306 CDTParser]: Found 1 translation units. [2022-01-18 23:28:57,492 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_31-traces-mine-vs-mutex_true.i [2022-01-18 23:28:57,500 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/00fef1506/8b8257e816f04c7eaaad611fa0cfa074/FLAG9d2bfc4ab [2022-01-18 23:28:57,508 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/00fef1506/8b8257e816f04c7eaaad611fa0cfa074 [2022-01-18 23:28:57,509 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-18 23:28:57,510 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-18 23:28:57,523 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-18 23:28:57,523 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-18 23:28:57,525 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-18 23:28:57,525 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.01 11:28:57" (1/1) ... [2022-01-18 23:28:57,526 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c116d3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:28:57, skipping insertion in model container [2022-01-18 23:28:57,526 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.01 11:28:57" (1/1) ... [2022-01-18 23:28:57,530 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-18 23:28:57,555 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-18 23:28:57,675 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_31-traces-mine-vs-mutex_true.i[1097,1110] [2022-01-18 23:28:57,746 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-18 23:28:57,752 INFO L203 MainTranslator]: Completed pre-run [2022-01-18 23:28:57,758 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_31-traces-mine-vs-mutex_true.i[1097,1110] [2022-01-18 23:28:57,774 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-18 23:28:57,795 INFO L208 MainTranslator]: Completed translation [2022-01-18 23:28:57,795 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:28:57 WrapperNode [2022-01-18 23:28:57,795 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-18 23:28:57,796 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-18 23:28:57,796 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-18 23:28:57,796 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-18 23:28:57,800 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:28:57" (1/1) ... [2022-01-18 23:28:57,818 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:28:57" (1/1) ... [2022-01-18 23:28:57,833 INFO L137 Inliner]: procedures = 162, calls = 31, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 55 [2022-01-18 23:28:57,834 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-18 23:28:57,834 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-18 23:28:57,834 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-18 23:28:57,835 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-18 23:28:57,839 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:28:57" (1/1) ... [2022-01-18 23:28:57,839 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:28:57" (1/1) ... [2022-01-18 23:28:57,842 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:28:57" (1/1) ... [2022-01-18 23:28:57,842 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:28:57" (1/1) ... [2022-01-18 23:28:57,855 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:28:57" (1/1) ... [2022-01-18 23:28:57,856 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:28:57" (1/1) ... [2022-01-18 23:28:57,856 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:28:57" (1/1) ... [2022-01-18 23:28:57,858 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-18 23:28:57,858 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-18 23:28:57,858 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-18 23:28:57,858 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-18 23:28:57,862 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:28:57" (1/1) ... [2022-01-18 23:28:57,866 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-18 23:28:57,873 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 23:28:57,881 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 23:28:57,902 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 23:28:57,923 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-18 23:28:57,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-18 23:28:57,924 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-01-18 23:28:57,924 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-18 23:28:57,924 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-18 23:28:57,924 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-01-18 23:28:57,924 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-01-18 23:28:57,924 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-18 23:28:57,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-18 23:28:57,924 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-18 23:28:57,924 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-18 23:28:57,925 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 23:28:57,992 INFO L234 CfgBuilder]: Building ICFG [2022-01-18 23:28:57,993 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-18 23:28:58,129 INFO L275 CfgBuilder]: Performing block encoding [2022-01-18 23:28:58,134 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-18 23:28:58,134 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-01-18 23:28:58,135 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 11:28:58 BoogieIcfgContainer [2022-01-18 23:28:58,136 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-18 23:28:58,137 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-18 23:28:58,137 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-18 23:28:58,139 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-18 23:28:58,139 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.01 11:28:57" (1/3) ... [2022-01-18 23:28:58,139 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36f15871 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.01 11:28:58, skipping insertion in model container [2022-01-18 23:28:58,139 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:28:57" (2/3) ... [2022-01-18 23:28:58,140 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36f15871 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.01 11:28:58, skipping insertion in model container [2022-01-18 23:28:58,140 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 11:28:58" (3/3) ... [2022-01-18 23:28:58,140 INFO L111 eAbstractionObserver]: Analyzing ICFG 13-privatized_31-traces-mine-vs-mutex_true.i [2022-01-18 23:28:58,143 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-18 23:28:58,143 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-18 23:28:58,144 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-18 23:28:58,161 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:58,161 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:58,161 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:58,161 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:58,161 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:58,161 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:58,161 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:58,161 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:58,162 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:58,162 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:58,162 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:58,162 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:58,162 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:58,162 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:58,163 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:58,163 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:58,163 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:58,163 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:58,163 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:58,163 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:58,163 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:58,163 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:58,164 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:58,164 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:58,164 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:58,164 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:58,164 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:58,164 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:58,164 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:58,164 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:58,165 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:58,165 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:58,165 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:58,165 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:58,165 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:58,165 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:58,167 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:58,167 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:58,167 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:58,167 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:58,167 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:58,168 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:58,168 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:58,168 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:58,168 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:28:58,170 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-01-18 23:28:58,197 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-18 23:28:58,201 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=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-18 23:28:58,201 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-01-18 23:28:58,207 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 84 places, 81 transitions, 170 flow [2022-01-18 23:28:58,229 INFO L129 PetriNetUnfolder]: 1/80 cut-off events. [2022-01-18 23:28:58,229 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-01-18 23:28:58,231 INFO L84 FinitePrefix]: Finished finitePrefix Result has 85 conditions, 80 events. 1/80 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 48 event pairs, 0 based on Foata normal form. 0/78 useless extension candidates. Maximal degree in co-relation 40. Up to 2 conditions per place. [2022-01-18 23:28:58,231 INFO L82 GeneralOperation]: Start removeDead. Operand has 84 places, 81 transitions, 170 flow [2022-01-18 23:28:58,233 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 69 places, 65 transitions, 133 flow [2022-01-18 23:28:58,243 INFO L129 PetriNetUnfolder]: 0/61 cut-off events. [2022-01-18 23:28:58,243 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-01-18 23:28:58,243 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 23:28:58,244 INFO L254 CegarLoopForPetriNet]: 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] [2022-01-18 23:28:58,244 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-18 23:28:58,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 23:28:58,247 INFO L85 PathProgramCache]: Analyzing trace with hash 1972094872, now seen corresponding path program 1 times [2022-01-18 23:28:58,253 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 23:28:58,253 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459502866] [2022-01-18 23:28:58,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 23:28:58,253 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 23:28:58,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 23:28:58,440 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 23:28:58,440 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 23:28:58,440 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1459502866] [2022-01-18 23:28:58,441 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1459502866] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 23:28:58,441 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 23:28:58,441 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-18 23:28:58,442 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647695542] [2022-01-18 23:28:58,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 23:28:58,447 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-18 23:28:58,448 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 23:28:58,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-18 23:28:58,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-18 23:28:58,468 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 81 [2022-01-18 23:28:58,470 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 65 transitions, 133 flow. Second operand has 5 states, 5 states have (on average 68.2) internal successors, (341), 5 states have internal predecessors, (341), 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 23:28:58,470 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 23:28:58,470 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 81 [2022-01-18 23:28:58,471 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 23:28:58,536 INFO L129 PetriNetUnfolder]: 17/139 cut-off events. [2022-01-18 23:28:58,536 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-01-18 23:28:58,536 INFO L84 FinitePrefix]: Finished finitePrefix Result has 194 conditions, 139 events. 17/139 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 358 event pairs, 8 based on Foata normal form. 5/143 useless extension candidates. Maximal degree in co-relation 155. Up to 24 conditions per place. [2022-01-18 23:28:58,537 INFO L132 encePairwiseOnDemand]: 76/81 looper letters, 8 selfloop transitions, 2 changer transitions 13/78 dead transitions. [2022-01-18 23:28:58,538 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 78 transitions, 205 flow [2022-01-18 23:28:58,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-18 23:28:58,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-01-18 23:28:58,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 494 transitions. [2022-01-18 23:28:58,548 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8712522045855379 [2022-01-18 23:28:58,548 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 494 transitions. [2022-01-18 23:28:58,548 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 494 transitions. [2022-01-18 23:28:58,550 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 23:28:58,551 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 494 transitions. [2022-01-18 23:28:58,554 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 70.57142857142857) internal successors, (494), 7 states have internal predecessors, (494), 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 23:28:58,559 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 81.0) internal successors, (648), 8 states have internal predecessors, (648), 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 23:28:58,560 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 81.0) internal successors, (648), 8 states have internal predecessors, (648), 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 23:28:58,561 INFO L186 Difference]: Start difference. First operand has 69 places, 65 transitions, 133 flow. Second operand 7 states and 494 transitions. [2022-01-18 23:28:58,562 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 78 transitions, 205 flow [2022-01-18 23:28:58,564 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 78 transitions, 204 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-01-18 23:28:58,566 INFO L242 Difference]: Finished difference. Result has 79 places, 65 transitions, 148 flow [2022-01-18 23:28:58,568 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=132, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=148, PETRI_PLACES=79, PETRI_TRANSITIONS=65} [2022-01-18 23:28:58,571 INFO L334 CegarLoopForPetriNet]: 69 programPoint places, 10 predicate places. [2022-01-18 23:28:58,571 INFO L470 AbstractCegarLoop]: Abstraction has has 79 places, 65 transitions, 148 flow [2022-01-18 23:28:58,571 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 68.2) internal successors, (341), 5 states have internal predecessors, (341), 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 23:28:58,572 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 23:28:58,572 INFO L254 CegarLoopForPetriNet]: 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] [2022-01-18 23:28:58,572 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-18 23:28:58,572 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-18 23:28:58,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 23:28:58,573 INFO L85 PathProgramCache]: Analyzing trace with hash 1681565644, now seen corresponding path program 1 times [2022-01-18 23:28:58,573 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 23:28:58,573 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217538762] [2022-01-18 23:28:58,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 23:28:58,574 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 23:28:58,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 23:28:58,638 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 23:28:58,638 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 23:28:58,639 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217538762] [2022-01-18 23:28:58,639 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1217538762] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 23:28:58,639 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 23:28:58,639 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-18 23:28:58,639 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047868402] [2022-01-18 23:28:58,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 23:28:58,641 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-18 23:28:58,641 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 23:28:58,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-18 23:28:58,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-18 23:28:58,643 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 81 [2022-01-18 23:28:58,643 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 65 transitions, 148 flow. Second operand has 3 states, 3 states have (on average 63.333333333333336) internal successors, (190), 3 states have internal predecessors, (190), 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 23:28:58,643 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 23:28:58,643 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 81 [2022-01-18 23:28:58,643 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 23:28:58,692 INFO L129 PetriNetUnfolder]: 13/149 cut-off events. [2022-01-18 23:28:58,692 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2022-01-18 23:28:58,693 INFO L84 FinitePrefix]: Finished finitePrefix Result has 233 conditions, 149 events. 13/149 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 335 event pairs, 8 based on Foata normal form. 8/157 useless extension candidates. Maximal degree in co-relation 213. Up to 33 conditions per place. [2022-01-18 23:28:58,694 INFO L132 encePairwiseOnDemand]: 73/81 looper letters, 13 selfloop transitions, 8 changer transitions 0/69 dead transitions. [2022-01-18 23:28:58,694 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 69 transitions, 198 flow [2022-01-18 23:28:58,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-18 23:28:58,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-01-18 23:28:58,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 202 transitions. [2022-01-18 23:28:58,696 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.831275720164609 [2022-01-18 23:28:58,696 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 202 transitions. [2022-01-18 23:28:58,696 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 202 transitions. [2022-01-18 23:28:58,696 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 23:28:58,696 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 202 transitions. [2022-01-18 23:28:58,697 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 67.33333333333333) internal successors, (202), 3 states have internal predecessors, (202), 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 23:28:58,698 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 81.0) internal successors, (324), 4 states have internal predecessors, (324), 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 23:28:58,698 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 81.0) internal successors, (324), 4 states have internal predecessors, (324), 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 23:28:58,698 INFO L186 Difference]: Start difference. First operand has 79 places, 65 transitions, 148 flow. Second operand 3 states and 202 transitions. [2022-01-18 23:28:58,698 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 69 transitions, 198 flow [2022-01-18 23:28:58,699 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 69 transitions, 186 flow, removed 4 selfloop flow, removed 6 redundant places. [2022-01-18 23:28:58,700 INFO L242 Difference]: Finished difference. Result has 72 places, 67 transitions, 168 flow [2022-01-18 23:28:58,701 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=136, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=168, PETRI_PLACES=72, PETRI_TRANSITIONS=67} [2022-01-18 23:28:58,701 INFO L334 CegarLoopForPetriNet]: 69 programPoint places, 3 predicate places. [2022-01-18 23:28:58,701 INFO L470 AbstractCegarLoop]: Abstraction has has 72 places, 67 transitions, 168 flow [2022-01-18 23:28:58,701 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.333333333333336) internal successors, (190), 3 states have internal predecessors, (190), 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 23:28:58,702 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 23:28:58,702 INFO L254 CegarLoopForPetriNet]: 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] [2022-01-18 23:28:58,702 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-18 23:28:58,702 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-18 23:28:58,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 23:28:58,702 INFO L85 PathProgramCache]: Analyzing trace with hash -1672303611, now seen corresponding path program 1 times [2022-01-18 23:28:58,703 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 23:28:58,703 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396256605] [2022-01-18 23:28:58,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 23:28:58,703 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 23:28:58,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 23:28:58,859 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 23:28:58,859 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 23:28:58,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396256605] [2022-01-18 23:28:58,859 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1396256605] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 23:28:58,860 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 23:28:58,860 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 23:28:58,860 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509033854] [2022-01-18 23:28:58,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 23:28:58,860 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-18 23:28:58,860 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 23:28:58,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-18 23:28:58,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-18 23:28:58,861 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 81 [2022-01-18 23:28:58,862 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 67 transitions, 168 flow. Second operand has 6 states, 6 states have (on average 56.333333333333336) internal successors, (338), 6 states have internal predecessors, (338), 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 23:28:58,862 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 23:28:58,862 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 81 [2022-01-18 23:28:58,862 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 23:28:58,940 INFO L129 PetriNetUnfolder]: 6/104 cut-off events. [2022-01-18 23:28:58,941 INFO L130 PetriNetUnfolder]: For 28/28 co-relation queries the response was YES. [2022-01-18 23:28:58,941 INFO L84 FinitePrefix]: Finished finitePrefix Result has 190 conditions, 104 events. 6/104 cut-off events. For 28/28 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 130 event pairs, 1 based on Foata normal form. 7/111 useless extension candidates. Maximal degree in co-relation 138. Up to 21 conditions per place. [2022-01-18 23:28:58,941 INFO L132 encePairwiseOnDemand]: 76/81 looper letters, 21 selfloop transitions, 6 changer transitions 0/69 dead transitions. [2022-01-18 23:28:58,941 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 69 transitions, 232 flow [2022-01-18 23:28:58,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-18 23:28:58,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-01-18 23:28:58,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 292 transitions. [2022-01-18 23:28:58,943 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7209876543209877 [2022-01-18 23:28:58,943 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 292 transitions. [2022-01-18 23:28:58,943 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 292 transitions. [2022-01-18 23:28:58,943 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 23:28:58,944 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 292 transitions. [2022-01-18 23:28:58,944 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 58.4) internal successors, (292), 5 states have internal predecessors, (292), 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 23:28:58,945 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 81.0) internal successors, (486), 6 states have internal predecessors, (486), 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 23:28:58,946 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 81.0) internal successors, (486), 6 states have internal predecessors, (486), 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 23:28:58,946 INFO L186 Difference]: Start difference. First operand has 72 places, 67 transitions, 168 flow. Second operand 5 states and 292 transitions. [2022-01-18 23:28:58,946 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 69 transitions, 232 flow [2022-01-18 23:28:58,947 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 69 transitions, 222 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-01-18 23:28:58,948 INFO L242 Difference]: Finished difference. Result has 75 places, 67 transitions, 172 flow [2022-01-18 23:28:58,948 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=160, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=172, PETRI_PLACES=75, PETRI_TRANSITIONS=67} [2022-01-18 23:28:58,948 INFO L334 CegarLoopForPetriNet]: 69 programPoint places, 6 predicate places. [2022-01-18 23:28:58,949 INFO L470 AbstractCegarLoop]: Abstraction has has 75 places, 67 transitions, 172 flow [2022-01-18 23:28:58,949 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 56.333333333333336) internal successors, (338), 6 states have internal predecessors, (338), 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 23:28:58,949 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 23:28:58,949 INFO L254 CegarLoopForPetriNet]: 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] [2022-01-18 23:28:58,949 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-18 23:28:58,949 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-18 23:28:58,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 23:28:58,950 INFO L85 PathProgramCache]: Analyzing trace with hash 551900832, now seen corresponding path program 1 times [2022-01-18 23:28:58,950 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 23:28:58,950 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998944304] [2022-01-18 23:28:58,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 23:28:58,950 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 23:28:58,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 23:28:59,025 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 23:28:59,025 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 23:28:59,025 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1998944304] [2022-01-18 23:28:59,026 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1998944304] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 23:28:59,026 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 23:28:59,026 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 23:28:59,026 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775945483] [2022-01-18 23:28:59,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 23:28:59,026 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-18 23:28:59,026 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 23:28:59,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-18 23:28:59,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-01-18 23:28:59,028 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 81 [2022-01-18 23:28:59,028 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 67 transitions, 172 flow. Second operand has 8 states, 8 states have (on average 66.5) internal successors, (532), 8 states have internal predecessors, (532), 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 23:28:59,029 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-18 23:28:59,029 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 81 [2022-01-18 23:28:59,029 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-18 23:28:59,095 INFO L129 PetriNetUnfolder]: 4/96 cut-off events. [2022-01-18 23:28:59,096 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-01-18 23:28:59,096 INFO L84 FinitePrefix]: Finished finitePrefix Result has 153 conditions, 96 events. 4/96 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 109 event pairs, 3 based on Foata normal form. 1/97 useless extension candidates. Maximal degree in co-relation 110. Up to 13 conditions per place. [2022-01-18 23:28:59,096 INFO L132 encePairwiseOnDemand]: 71/81 looper letters, 0 selfloop transitions, 0 changer transitions 65/65 dead transitions. [2022-01-18 23:28:59,096 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 65 transitions, 190 flow [2022-01-18 23:28:59,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 23:28:59,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-01-18 23:28:59,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 662 transitions. [2022-01-18 23:28:59,099 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.817283950617284 [2022-01-18 23:28:59,099 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 662 transitions. [2022-01-18 23:28:59,099 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 662 transitions. [2022-01-18 23:28:59,100 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-18 23:28:59,100 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 662 transitions. [2022-01-18 23:28:59,101 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 66.2) internal successors, (662), 10 states have internal predecessors, (662), 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 23:28:59,103 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 81.0) internal successors, (891), 11 states have internal predecessors, (891), 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 23:28:59,104 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 81.0) internal successors, (891), 11 states have internal predecessors, (891), 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 23:28:59,104 INFO L186 Difference]: Start difference. First operand has 75 places, 67 transitions, 172 flow. Second operand 10 states and 662 transitions. [2022-01-18 23:28:59,104 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 65 transitions, 190 flow [2022-01-18 23:28:59,105 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 65 transitions, 183 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-01-18 23:28:59,105 INFO L242 Difference]: Finished difference. Result has 79 places, 0 transitions, 0 flow [2022-01-18 23:28:59,105 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=161, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=0, PETRI_PLACES=79, PETRI_TRANSITIONS=0} [2022-01-18 23:28:59,106 INFO L334 CegarLoopForPetriNet]: 69 programPoint places, 10 predicate places. [2022-01-18 23:28:59,106 INFO L470 AbstractCegarLoop]: Abstraction has has 79 places, 0 transitions, 0 flow [2022-01-18 23:28:59,106 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 66.5) internal successors, (532), 8 states have internal predecessors, (532), 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 23:28:59,108 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-01-18 23:28:59,109 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (0 of 2 remaining) [2022-01-18 23:28:59,109 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-18 23:28:59,111 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-01-18 23:28:59,112 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-01-18 23:28:59,112 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-01-18 23:28:59,115 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.01 11:28:59 BasicIcfg [2022-01-18 23:28:59,115 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-18 23:28:59,117 INFO L158 Benchmark]: Toolchain (without parser) took 1604.85ms. Allocated memory is still 419.4MB. Free memory was 363.1MB in the beginning and 254.7MB in the end (delta: 108.4MB). Peak memory consumption was 107.5MB. Max. memory is 16.0GB. [2022-01-18 23:28:59,117 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 419.4MB. Free memory is still 381.8MB. There was no memory consumed. Max. memory is 16.0GB. [2022-01-18 23:28:59,117 INFO L158 Benchmark]: CACSL2BoogieTranslator took 272.52ms. Allocated memory is still 419.4MB. Free memory was 363.0MB in the beginning and 383.7MB in the end (delta: -20.7MB). Peak memory consumption was 17.3MB. Max. memory is 16.0GB. [2022-01-18 23:28:59,118 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.70ms. Allocated memory is still 419.4MB. Free memory was 382.6MB in the beginning and 381.6MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.0GB. [2022-01-18 23:28:59,118 INFO L158 Benchmark]: Boogie Preprocessor took 23.48ms. Allocated memory is still 419.4MB. Free memory was 381.6MB in the beginning and 379.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-18 23:28:59,118 INFO L158 Benchmark]: RCFGBuilder took 277.47ms. Allocated memory is still 419.4MB. Free memory was 379.5MB in the beginning and 366.9MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. [2022-01-18 23:28:59,119 INFO L158 Benchmark]: TraceAbstraction took 978.23ms. Allocated memory is still 419.4MB. Free memory was 365.9MB in the beginning and 254.7MB in the end (delta: 111.1MB). Peak memory consumption was 111.1MB. Max. memory is 16.0GB. [2022-01-18 23:28:59,120 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 419.4MB. Free memory is still 381.8MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 272.52ms. Allocated memory is still 419.4MB. Free memory was 363.0MB in the beginning and 383.7MB in the end (delta: -20.7MB). Peak memory consumption was 17.3MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 37.70ms. Allocated memory is still 419.4MB. Free memory was 382.6MB in the beginning and 381.6MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.0GB. * Boogie Preprocessor took 23.48ms. Allocated memory is still 419.4MB. Free memory was 381.6MB in the beginning and 379.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 277.47ms. Allocated memory is still 419.4MB. Free memory was 379.5MB in the beginning and 366.9MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. * TraceAbstraction took 978.23ms. Allocated memory is still 419.4MB. Free memory was 365.9MB in the beginning and 254.7MB in the end (delta: 111.1MB). Peak memory consumption was 111.1MB. 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 - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 101 locations, 2 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 0.9s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 32 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 32 mSDsluCounter, 66 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 42 mSDsCounter, 28 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 148 IncrementalHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 28 mSolverCounterUnsat, 32 mSDtfsCounter, 148 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 35 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=172occurred in iteration=3, InterpolantAutomatonStates: 25, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 220 NumberOfCodeBlocks, 220 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 216 ConstructedInterpolants, 0 QuantifiedInterpolants, 625 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-01-18 23:28:59,146 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...