/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-Separate.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/28-race_reach_06-cond_racing1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-29289db [2021-06-05 11:29:36,009 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-05 11:29:36,011 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-05 11:29:36,042 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-05 11:29:36,050 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-05 11:29:36,050 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-05 11:29:36,051 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-05 11:29:36,051 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-05 11:29:36,052 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-05 11:29:36,053 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-05 11:29:36,054 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-05 11:29:36,055 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-05 11:29:36,056 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-05 11:29:36,059 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-05 11:29:36,059 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-05 11:29:36,060 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-05 11:29:36,062 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-06-05 11:29:36,068 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-05 11:29:36,069 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-05 11:29:36,069 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-05 11:29:36,075 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-Separate.epf [2021-06-05 11:29:36,093 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-05 11:29:36,093 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-05 11:29:36,093 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-05 11:29:36,094 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-05 11:29:36,094 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-05 11:29:36,094 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-05 11:29:36,094 INFO L138 SettingsManager]: * Use SBE=true [2021-06-05 11:29:36,095 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-05 11:29:36,095 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-05 11:29:36,095 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-05 11:29:36,095 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-05 11:29:36,095 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-05 11:29:36,095 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-05 11:29:36,095 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-05 11:29:36,095 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-05 11:29:36,095 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-05 11:29:36,095 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-05 11:29:36,095 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-05 11:29:36,096 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-05 11:29:36,096 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-05 11:29:36,096 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-05 11:29:36,096 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-05 11:29:36,096 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-05 11:29:36,096 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-05 11:29:36,096 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-05 11:29:36,096 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-05 11:29:36,096 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-05 11:29:36,096 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-05 11:29:36,096 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-05 11:29:36,097 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-05 11:29:36,097 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-05 11:29:36,097 INFO L138 SettingsManager]: * Check the insufficient thread errors last=true [2021-06-05 11:29:36,097 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-05 11:29:36,337 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-05 11:29:36,350 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-05 11:29:36,352 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-05 11:29:36,353 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-05 11:29:36,353 INFO L275 PluginConnector]: CDTParser initialized [2021-06-05 11:29:36,354 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/28-race_reach_06-cond_racing1.i [2021-06-05 11:29:36,397 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4b7be94c3/846068356ac545a0bb9826b9031932c5/FLAG51045c458 [2021-06-05 11:29:36,848 INFO L306 CDTParser]: Found 1 translation units. [2021-06-05 11:29:36,849 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_06-cond_racing1.i [2021-06-05 11:29:36,868 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4b7be94c3/846068356ac545a0bb9826b9031932c5/FLAG51045c458 [2021-06-05 11:29:37,174 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4b7be94c3/846068356ac545a0bb9826b9031932c5 [2021-06-05 11:29:37,178 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-05 11:29:37,180 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-05 11:29:37,183 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-05 11:29:37,183 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-05 11:29:37,185 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-05 11:29:37,186 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.06 11:29:37" (1/1) ... [2021-06-05 11:29:37,188 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e0fd491 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 11:29:37, skipping insertion in model container [2021-06-05 11:29:37,188 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.06 11:29:37" (1/1) ... [2021-06-05 11:29:37,192 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-05 11:29:37,240 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-05 11:29:37,551 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_06-cond_racing1.i[41060,41073] [2021-06-05 11:29:37,571 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-05 11:29:37,581 INFO L203 MainTranslator]: Completed pre-run [2021-06-05 11:29:37,610 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_06-cond_racing1.i[41060,41073] [2021-06-05 11:29:37,625 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-05 11:29:37,722 INFO L208 MainTranslator]: Completed translation [2021-06-05 11:29:37,722 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 11:29:37 WrapperNode [2021-06-05 11:29:37,722 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-05 11:29:37,723 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-05 11:29:37,723 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-05 11:29:37,723 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-05 11:29:37,727 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 11:29:37" (1/1) ... [2021-06-05 11:29:37,755 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 11:29:37" (1/1) ... [2021-06-05 11:29:37,776 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-05 11:29:37,777 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-05 11:29:37,777 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-05 11:29:37,777 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-05 11:29:37,782 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 11:29:37" (1/1) ... [2021-06-05 11:29:37,782 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 11:29:37" (1/1) ... [2021-06-05 11:29:37,791 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 11:29:37" (1/1) ... [2021-06-05 11:29:37,792 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 11:29:37" (1/1) ... [2021-06-05 11:29:37,802 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 11:29:37" (1/1) ... [2021-06-05 11:29:37,812 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 11:29:37" (1/1) ... [2021-06-05 11:29:37,813 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 11:29:37" (1/1) ... [2021-06-05 11:29:37,815 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-05 11:29:37,815 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-05 11:29:37,815 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-05 11:29:37,815 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-05 11:29:37,816 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 11:29:37" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-05 11:29:37,858 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-05 11:29:37,858 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-05 11:29:37,858 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-06-05 11:29:37,859 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-05 11:29:37,859 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-06-05 11:29:37,859 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2021-06-05 11:29:37,859 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2021-06-05 11:29:37,859 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-05 11:29:37,859 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-05 11:29:37,859 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-05 11:29:37,860 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-05 11:29:38,213 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-05 11:29:38,213 INFO L299 CfgBuilder]: Removed 16 assume(true) statements. [2021-06-05 11:29:38,214 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 11:29:38 BoogieIcfgContainer [2021-06-05 11:29:38,214 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-05 11:29:38,215 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-05 11:29:38,215 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-05 11:29:38,217 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-05 11:29:38,217 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.06 11:29:37" (1/3) ... [2021-06-05 11:29:38,218 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6da2ca03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 11:29:38, skipping insertion in model container [2021-06-05 11:29:38,218 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 11:29:37" (2/3) ... [2021-06-05 11:29:38,218 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6da2ca03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 11:29:38, skipping insertion in model container [2021-06-05 11:29:38,218 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 11:29:38" (3/3) ... [2021-06-05 11:29:38,219 INFO L111 eAbstractionObserver]: Analyzing ICFG 28-race_reach_06-cond_racing1.i [2021-06-05 11:29:38,223 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-05 11:29:38,223 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-05 11:29:38,223 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-05 11:29:38,224 INFO L510 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-05 11:29:38,240 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:38,241 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:38,241 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:38,241 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:38,241 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:38,241 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:38,241 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:38,242 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:38,242 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:38,242 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:38,242 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:38,242 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:38,242 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:38,242 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:38,243 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:38,243 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:38,243 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:38,243 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:38,243 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:38,243 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:38,243 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:38,243 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:38,244 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:38,244 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:38,244 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:38,244 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:38,244 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:38,244 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:38,244 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:38,244 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:38,245 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:38,245 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:38,245 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:38,245 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:38,245 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:38,245 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:38,246 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:38,247 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:38,247 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:38,247 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:38,247 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:38,247 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:38,247 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:38,247 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:38,247 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:38,252 INFO L149 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-06-05 11:29:38,267 INFO L255 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-06-05 11:29:38,283 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-05 11:29:38,283 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-05 11:29:38,283 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-05 11:29:38,283 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-05 11:29:38,283 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-05 11:29:38,283 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-05 11:29:38,283 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-05 11:29:38,283 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-05 11:29:38,290 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 106 places, 118 transitions, 244 flow [2021-06-05 11:29:38,325 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 1018 states, 1012 states have (on average 2.308300395256917) internal successors, (2336), 1017 states have internal predecessors, (2336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:29:38,329 INFO L276 IsEmpty]: Start isEmpty. Operand has 1018 states, 1012 states have (on average 2.308300395256917) internal successors, (2336), 1017 states have internal predecessors, (2336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:29:38,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-06-05 11:29:38,335 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:29:38,336 INFO L521 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] [2021-06-05 11:29:38,336 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:29:38,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:29:38,340 INFO L82 PathProgramCache]: Analyzing trace with hash 493182100, now seen corresponding path program 1 times [2021-06-05 11:29:38,345 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:29:38,345 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780845707] [2021-06-05 11:29:38,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:29:38,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:29:38,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:29:38,466 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:29:38,466 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780845707] [2021-06-05 11:29:38,467 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [780845707] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:29:38,467 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:29:38,467 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-05 11:29:38,467 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244923864] [2021-06-05 11:29:38,470 INFO L462 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-06-05 11:29:38,470 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:29:38,477 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-06-05 11:29:38,477 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-06-05 11:29:38,480 INFO L87 Difference]: Start difference. First operand has 1018 states, 1012 states have (on average 2.308300395256917) internal successors, (2336), 1017 states have internal predecessors, (2336), 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 24.0) internal successors, (48), 2 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:29:38,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:29:38,508 INFO L93 Difference]: Finished difference Result 994 states and 1924 transitions. [2021-06-05 11:29:38,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-05 11:29:38,509 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 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 48 [2021-06-05 11:29:38,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:29:38,517 INFO L225 Difference]: With dead ends: 994 [2021-06-05 11:29:38,518 INFO L226 Difference]: Without dead ends: 515 [2021-06-05 11:29:38,518 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-06-05 11:29:38,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 515 states. [2021-06-05 11:29:38,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 515 to 515. [2021-06-05 11:29:38,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 515 states, 513 states have (on average 1.8635477582846003) internal successors, (956), 514 states have internal predecessors, (956), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:29:38,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 515 states to 515 states and 956 transitions. [2021-06-05 11:29:38,560 INFO L78 Accepts]: Start accepts. Automaton has 515 states and 956 transitions. Word has length 48 [2021-06-05 11:29:38,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:29:38,561 INFO L482 AbstractCegarLoop]: Abstraction has 515 states and 956 transitions. [2021-06-05 11:29:38,561 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:29:38,561 INFO L276 IsEmpty]: Start isEmpty. Operand 515 states and 956 transitions. [2021-06-05 11:29:38,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-06-05 11:29:38,562 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:29:38,562 INFO L521 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] [2021-06-05 11:29:38,562 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-05 11:29:38,562 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:29:38,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:29:38,563 INFO L82 PathProgramCache]: Analyzing trace with hash 622264819, now seen corresponding path program 1 times [2021-06-05 11:29:38,563 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:29:38,563 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819960734] [2021-06-05 11:29:38,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:29:38,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:29:38,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:29:38,622 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:29:38,622 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819960734] [2021-06-05 11:29:38,622 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [819960734] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:29:38,622 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:29:38,623 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-05 11:29:38,623 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972052466] [2021-06-05 11:29:38,623 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-05 11:29:38,624 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:29:38,624 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-05 11:29:38,624 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 11:29:38,624 INFO L87 Difference]: Start difference. First operand 515 states and 956 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:29:38,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:29:38,640 INFO L93 Difference]: Finished difference Result 501 states and 941 transitions. [2021-06-05 11:29:38,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-05 11:29:38,641 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 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 48 [2021-06-05 11:29:38,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:29:38,643 INFO L225 Difference]: With dead ends: 501 [2021-06-05 11:29:38,643 INFO L226 Difference]: Without dead ends: 501 [2021-06-05 11:29:38,643 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 11:29:38,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 501 states. [2021-06-05 11:29:38,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 501 to 501. [2021-06-05 11:29:38,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 501 states, 500 states have (on average 1.882) internal successors, (941), 500 states have internal predecessors, (941), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:29:38,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 501 states to 501 states and 941 transitions. [2021-06-05 11:29:38,659 INFO L78 Accepts]: Start accepts. Automaton has 501 states and 941 transitions. Word has length 48 [2021-06-05 11:29:38,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:29:38,659 INFO L482 AbstractCegarLoop]: Abstraction has 501 states and 941 transitions. [2021-06-05 11:29:38,660 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:29:38,660 INFO L276 IsEmpty]: Start isEmpty. Operand 501 states and 941 transitions. [2021-06-05 11:29:38,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-06-05 11:29:38,661 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:29:38,661 INFO L521 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] [2021-06-05 11:29:38,662 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-05 11:29:38,662 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:29:38,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:29:38,662 INFO L82 PathProgramCache]: Analyzing trace with hash -204813098, now seen corresponding path program 1 times [2021-06-05 11:29:38,662 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:29:38,662 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [959128246] [2021-06-05 11:29:38,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:29:38,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:29:38,747 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:29:38,747 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:29:38,747 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [959128246] [2021-06-05 11:29:38,748 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [959128246] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 11:29:38,748 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1578679475] [2021-06-05 11:29:38,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 11:29:38,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:29:38,898 INFO L263 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 3 conjunts are in the unsatisfiable core [2021-06-05 11:29:38,902 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 11:29:39,008 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-05 11:29:39,008 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1578679475] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:29:39,009 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-06-05 11:29:39,009 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2021-06-05 11:29:39,009 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331911762] [2021-06-05 11:29:39,015 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-05 11:29:39,015 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:29:39,015 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-05 11:29:39,016 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-06-05 11:29:39,016 INFO L87 Difference]: Start difference. First operand 501 states and 941 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:29:39,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:29:39,028 INFO L93 Difference]: Finished difference Result 547 states and 1008 transitions. [2021-06-05 11:29:39,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-05 11:29:39,033 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 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 58 [2021-06-05 11:29:39,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:29:39,034 INFO L225 Difference]: With dead ends: 547 [2021-06-05 11:29:39,034 INFO L226 Difference]: Without dead ends: 501 [2021-06-05 11:29:39,035 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 12.3ms TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-06-05 11:29:39,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 501 states. [2021-06-05 11:29:39,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 501 to 501. [2021-06-05 11:29:39,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 501 states, 500 states have (on average 1.836) internal successors, (918), 500 states have internal predecessors, (918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:29:39,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 501 states to 501 states and 918 transitions. [2021-06-05 11:29:39,056 INFO L78 Accepts]: Start accepts. Automaton has 501 states and 918 transitions. Word has length 58 [2021-06-05 11:29:39,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:29:39,056 INFO L482 AbstractCegarLoop]: Abstraction has 501 states and 918 transitions. [2021-06-05 11:29:39,056 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:29:39,056 INFO L276 IsEmpty]: Start isEmpty. Operand 501 states and 918 transitions. [2021-06-05 11:29:39,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-06-05 11:29:39,057 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:29:39,058 INFO L521 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] [2021-06-05 11:29:39,268 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2021-06-05 11:29:39,269 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:29:39,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:29:39,269 INFO L82 PathProgramCache]: Analyzing trace with hash 1845387893, now seen corresponding path program 1 times [2021-06-05 11:29:39,270 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:29:39,270 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969150702] [2021-06-05 11:29:39,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:29:39,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:29:39,318 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:29:39,318 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:29:39,318 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969150702] [2021-06-05 11:29:39,318 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [969150702] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 11:29:39,318 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2047954340] [2021-06-05 11:29:39,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 11:29:39,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:29:39,388 INFO L263 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 4 conjunts are in the unsatisfiable core [2021-06-05 11:29:39,389 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 11:29:39,492 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:29:39,493 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2047954340] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 11:29:39,493 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-05 11:29:39,493 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2021-06-05 11:29:39,493 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221719666] [2021-06-05 11:29:39,493 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 11:29:39,493 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:29:39,494 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 11:29:39,494 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-06-05 11:29:39,494 INFO L87 Difference]: Start difference. First operand 501 states and 918 transitions. Second operand has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:29:39,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:29:39,524 INFO L93 Difference]: Finished difference Result 179 states and 288 transitions. [2021-06-05 11:29:39,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-05 11:29:39,524 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2021-06-05 11:29:39,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:29:39,526 INFO L225 Difference]: With dead ends: 179 [2021-06-05 11:29:39,526 INFO L226 Difference]: Without dead ends: 0 [2021-06-05 11:29:39,526 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 23.5ms TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2021-06-05 11:29:39,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-06-05 11:29:39,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-06-05 11:29:39,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:29:39,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-06-05 11:29:39,529 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 60 [2021-06-05 11:29:39,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:29:39,529 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-06-05 11:29:39,530 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:29:39,530 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-06-05 11:29:39,530 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-06-05 11:29:39,740 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 11:29:39,741 INFO L315 ceAbstractionStarter]: Result for error location AllErrorsAtOnce was SAFE (1/2) [2021-06-05 11:29:39,742 INFO L255 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-06-05 11:29:39,743 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-05 11:29:39,743 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-05 11:29:39,743 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-05 11:29:39,743 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-05 11:29:39,743 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-05 11:29:39,743 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-05 11:29:39,743 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-05 11:29:39,743 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == InUseError======== [2021-06-05 11:29:39,745 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 106 places, 118 transitions, 244 flow [2021-06-05 11:29:39,755 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 1018 states, 1012 states have (on average 2.308300395256917) internal successors, (2336), 1017 states have internal predecessors, (2336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:29:39,756 INFO L276 IsEmpty]: Start isEmpty. Operand has 1018 states, 1012 states have (on average 2.308300395256917) internal successors, (2336), 1017 states have internal predecessors, (2336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:29:39,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-06-05 11:29:39,758 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:29:39,758 INFO L521 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 11:29:39,758 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-06-05 11:29:39,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:29:39,758 INFO L82 PathProgramCache]: Analyzing trace with hash -693021782, now seen corresponding path program 1 times [2021-06-05 11:29:39,758 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:29:39,758 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954585981] [2021-06-05 11:29:39,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:29:39,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-05 11:29:39,775 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-05 11:29:39,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-05 11:29:39,786 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-05 11:29:39,806 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-06-05 11:29:39,806 INFO L622 BasicCegarLoop]: Counterexample might be feasible [2021-06-05 11:29:39,806 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-05 11:29:39,806 INFO L315 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (2/2) [2021-06-05 11:29:39,806 WARN L242 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2021-06-05 11:29:39,806 INFO L510 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2021-06-05 11:29:39,812 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:39,813 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:39,813 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:39,813 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:39,813 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:39,813 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:39,813 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:39,813 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:39,813 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:39,813 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:39,813 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:39,813 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:39,814 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:39,814 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:39,814 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:39,814 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:39,814 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:39,814 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:39,814 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:39,814 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:39,814 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:39,814 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:39,814 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:39,814 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:39,814 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:39,815 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:39,815 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:39,815 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:39,815 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:39,815 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:39,815 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:39,815 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:39,815 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:39,815 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:39,815 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:39,815 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:39,815 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:39,816 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:39,816 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:39,816 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:39,816 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:39,816 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:39,816 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:39,816 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:39,816 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:39,816 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:39,816 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:39,816 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:39,816 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:39,816 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:39,817 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:39,817 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:39,817 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:39,817 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:39,817 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:39,817 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:39,817 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:39,817 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:39,817 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:39,817 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:39,817 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:39,817 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:39,819 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:39,819 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:39,819 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:39,819 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:39,819 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:39,819 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:39,819 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:39,819 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:39,819 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:39,820 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:39,820 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:39,820 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:39,820 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:39,820 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:39,820 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:39,820 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:39,820 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:39,820 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:39,820 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:39,821 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:39,822 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:39,822 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:39,822 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:39,822 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:39,822 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:39,822 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:39,822 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:39,822 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:39,824 INFO L149 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-06-05 11:29:39,825 INFO L255 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-06-05 11:29:39,825 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-05 11:29:39,825 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-05 11:29:39,825 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-05 11:29:39,825 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-05 11:29:39,825 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-05 11:29:39,826 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-05 11:29:39,826 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-05 11:29:39,826 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-05 11:29:39,827 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 131 places, 148 transitions, 314 flow [2021-06-05 11:29:41,230 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 23075 states, 23066 states have (on average 3.5299575132229255) internal successors, (81422), 23074 states have internal predecessors, (81422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:29:41,268 INFO L276 IsEmpty]: Start isEmpty. Operand has 23075 states, 23066 states have (on average 3.5299575132229255) internal successors, (81422), 23074 states have internal predecessors, (81422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:29:41,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-06-05 11:29:41,269 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:29:41,269 INFO L521 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] [2021-06-05 11:29:41,270 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:29:41,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:29:41,270 INFO L82 PathProgramCache]: Analyzing trace with hash 1886558356, now seen corresponding path program 1 times [2021-06-05 11:29:41,270 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:29:41,270 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610430456] [2021-06-05 11:29:41,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:29:41,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:29:41,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:29:41,309 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:29:41,309 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610430456] [2021-06-05 11:29:41,309 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1610430456] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:29:41,310 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:29:41,310 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-05 11:29:41,311 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201432148] [2021-06-05 11:29:41,311 INFO L462 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-06-05 11:29:41,311 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:29:41,311 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-06-05 11:29:41,311 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-06-05 11:29:41,343 INFO L87 Difference]: Start difference. First operand has 23075 states, 23066 states have (on average 3.5299575132229255) internal successors, (81422), 23074 states have internal predecessors, (81422), 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 24.0) internal successors, (48), 2 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:29:41,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:29:41,548 INFO L93 Difference]: Finished difference Result 22522 states and 65389 transitions. [2021-06-05 11:29:41,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-05 11:29:41,548 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 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 48 [2021-06-05 11:29:41,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:29:41,593 INFO L225 Difference]: With dead ends: 22522 [2021-06-05 11:29:41,594 INFO L226 Difference]: Without dead ends: 11187 [2021-06-05 11:29:41,594 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-06-05 11:29:41,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11187 states. [2021-06-05 11:29:41,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11187 to 11187. [2021-06-05 11:29:41,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11187 states, 11184 states have (on average 2.8593526466380546) internal successors, (31979), 11186 states have internal predecessors, (31979), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:29:41,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11187 states to 11187 states and 31979 transitions. [2021-06-05 11:29:41,993 INFO L78 Accepts]: Start accepts. Automaton has 11187 states and 31979 transitions. Word has length 48 [2021-06-05 11:29:41,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:29:41,993 INFO L482 AbstractCegarLoop]: Abstraction has 11187 states and 31979 transitions. [2021-06-05 11:29:41,993 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:29:41,993 INFO L276 IsEmpty]: Start isEmpty. Operand 11187 states and 31979 transitions. [2021-06-05 11:29:41,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-06-05 11:29:41,994 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:29:41,994 INFO L521 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] [2021-06-05 11:29:41,994 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-06-05 11:29:41,994 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:29:41,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:29:41,995 INFO L82 PathProgramCache]: Analyzing trace with hash 2015641075, now seen corresponding path program 1 times [2021-06-05 11:29:41,995 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:29:41,997 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753562660] [2021-06-05 11:29:41,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:29:42,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:29:42,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:29:42,070 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:29:42,070 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753562660] [2021-06-05 11:29:42,070 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [753562660] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:29:42,070 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:29:42,071 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-05 11:29:42,071 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145367138] [2021-06-05 11:29:42,071 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-05 11:29:42,071 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:29:42,071 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-05 11:29:42,071 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 11:29:42,071 INFO L87 Difference]: Start difference. First operand 11187 states and 31979 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:29:42,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:29:42,131 INFO L93 Difference]: Finished difference Result 11173 states and 31964 transitions. [2021-06-05 11:29:42,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-05 11:29:42,131 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 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 48 [2021-06-05 11:29:42,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:29:42,169 INFO L225 Difference]: With dead ends: 11173 [2021-06-05 11:29:42,170 INFO L226 Difference]: Without dead ends: 11173 [2021-06-05 11:29:42,170 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 11:29:42,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11173 states. [2021-06-05 11:29:42,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11173 to 11173. [2021-06-05 11:29:42,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11173 states, 11171 states have (on average 2.8613373914600304) internal successors, (31964), 11172 states have internal predecessors, (31964), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:29:42,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11173 states to 11173 states and 31964 transitions. [2021-06-05 11:29:42,495 INFO L78 Accepts]: Start accepts. Automaton has 11173 states and 31964 transitions. Word has length 48 [2021-06-05 11:29:42,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:29:42,495 INFO L482 AbstractCegarLoop]: Abstraction has 11173 states and 31964 transitions. [2021-06-05 11:29:42,495 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:29:42,495 INFO L276 IsEmpty]: Start isEmpty. Operand 11173 states and 31964 transitions. [2021-06-05 11:29:42,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-06-05 11:29:42,496 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:29:42,496 INFO L521 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] [2021-06-05 11:29:42,496 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-06-05 11:29:42,496 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:29:42,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:29:42,497 INFO L82 PathProgramCache]: Analyzing trace with hash 1320673466, now seen corresponding path program 1 times [2021-06-05 11:29:42,497 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:29:42,497 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754670394] [2021-06-05 11:29:42,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:29:42,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:29:42,543 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:29:42,543 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:29:42,543 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1754670394] [2021-06-05 11:29:42,543 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1754670394] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 11:29:42,543 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1057348980] [2021-06-05 11:29:42,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 11:29:42,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:29:42,626 INFO L263 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 3 conjunts are in the unsatisfiable core [2021-06-05 11:29:42,630 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 11:29:42,694 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-05 11:29:42,694 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1057348980] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:29:42,694 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-06-05 11:29:42,694 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2021-06-05 11:29:42,694 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488902778] [2021-06-05 11:29:42,694 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-05 11:29:42,694 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:29:42,695 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-05 11:29:42,695 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-06-05 11:29:42,696 INFO L87 Difference]: Start difference. First operand 11173 states and 31964 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:29:42,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:29:42,822 INFO L93 Difference]: Finished difference Result 12277 states and 34584 transitions. [2021-06-05 11:29:42,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-05 11:29:42,822 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 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 58 [2021-06-05 11:29:42,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:29:42,839 INFO L225 Difference]: With dead ends: 12277 [2021-06-05 11:29:42,840 INFO L226 Difference]: Without dead ends: 11173 [2021-06-05 11:29:42,841 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 9.7ms TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-06-05 11:29:42,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11173 states. [2021-06-05 11:29:43,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11173 to 11173. [2021-06-05 11:29:43,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11173 states, 11171 states have (on average 2.811923731089428) internal successors, (31412), 11172 states have internal predecessors, (31412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:29:43,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11173 states to 11173 states and 31412 transitions. [2021-06-05 11:29:43,162 INFO L78 Accepts]: Start accepts. Automaton has 11173 states and 31412 transitions. Word has length 58 [2021-06-05 11:29:43,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:29:43,162 INFO L482 AbstractCegarLoop]: Abstraction has 11173 states and 31412 transitions. [2021-06-05 11:29:43,162 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:29:43,162 INFO L276 IsEmpty]: Start isEmpty. Operand 11173 states and 31412 transitions. [2021-06-05 11:29:43,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-06-05 11:29:43,164 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:29:43,164 INFO L521 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] [2021-06-05 11:29:43,377 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 11:29:43,377 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:29:43,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:29:43,377 INFO L82 PathProgramCache]: Analyzing trace with hash -1040834599, now seen corresponding path program 1 times [2021-06-05 11:29:43,377 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:29:43,378 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155536195] [2021-06-05 11:29:43,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:29:43,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:29:43,405 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:29:43,405 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:29:43,405 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155536195] [2021-06-05 11:29:43,405 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1155536195] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 11:29:43,405 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1029418618] [2021-06-05 11:29:43,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 11:29:43,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:29:43,501 INFO L263 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 4 conjunts are in the unsatisfiable core [2021-06-05 11:29:43,502 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 11:29:43,590 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:29:43,590 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1029418618] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 11:29:43,591 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-05 11:29:43,591 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2021-06-05 11:29:43,591 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385354394] [2021-06-05 11:29:43,591 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 11:29:43,591 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:29:43,591 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 11:29:43,591 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-06-05 11:29:43,592 INFO L87 Difference]: Start difference. First operand 11173 states and 31412 transitions. Second operand has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:29:43,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:29:43,642 INFO L93 Difference]: Finished difference Result 10851 states and 30782 transitions. [2021-06-05 11:29:43,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-05 11:29:43,642 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2021-06-05 11:29:43,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:29:43,660 INFO L225 Difference]: With dead ends: 10851 [2021-06-05 11:29:43,660 INFO L226 Difference]: Without dead ends: 10851 [2021-06-05 11:29:43,660 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 23.1ms TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2021-06-05 11:29:43,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10851 states. [2021-06-05 11:29:43,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10851 to 10851. [2021-06-05 11:29:43,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10851 states, 10850 states have (on average 2.8370506912442397) internal successors, (30782), 10850 states have internal predecessors, (30782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:29:43,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10851 states to 10851 states and 30782 transitions. [2021-06-05 11:29:43,956 INFO L78 Accepts]: Start accepts. Automaton has 10851 states and 30782 transitions. Word has length 60 [2021-06-05 11:29:43,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:29:43,957 INFO L482 AbstractCegarLoop]: Abstraction has 10851 states and 30782 transitions. [2021-06-05 11:29:43,957 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:29:43,957 INFO L276 IsEmpty]: Start isEmpty. Operand 10851 states and 30782 transitions. [2021-06-05 11:29:43,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-06-05 11:29:43,960 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:29:43,960 INFO L521 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 11:29:44,177 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 11:29:44,179 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:29:44,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:29:44,180 INFO L82 PathProgramCache]: Analyzing trace with hash -1918720385, now seen corresponding path program 1 times [2021-06-05 11:29:44,180 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:29:44,180 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920015606] [2021-06-05 11:29:44,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:29:44,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:29:44,232 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-06-05 11:29:44,232 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:29:44,232 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920015606] [2021-06-05 11:29:44,232 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1920015606] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:29:44,232 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:29:44,232 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-06-05 11:29:44,232 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81285740] [2021-06-05 11:29:44,232 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-05 11:29:44,232 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:29:44,233 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-05 11:29:44,233 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-06-05 11:29:44,233 INFO L87 Difference]: Start difference. First operand 10851 states and 30782 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:29:44,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:29:44,304 INFO L93 Difference]: Finished difference Result 12118 states and 33980 transitions. [2021-06-05 11:29:44,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-05 11:29:44,304 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 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 70 [2021-06-05 11:29:44,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:29:44,320 INFO L225 Difference]: With dead ends: 12118 [2021-06-05 11:29:44,320 INFO L226 Difference]: Without dead ends: 10531 [2021-06-05 11:29:44,320 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 19.4ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-06-05 11:29:44,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10531 states. [2021-06-05 11:29:44,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10531 to 10531. [2021-06-05 11:29:44,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10531 states, 10530 states have (on average 2.832098765432099) internal successors, (29822), 10530 states have internal predecessors, (29822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:29:44,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10531 states to 10531 states and 29822 transitions. [2021-06-05 11:29:44,603 INFO L78 Accepts]: Start accepts. Automaton has 10531 states and 29822 transitions. Word has length 70 [2021-06-05 11:29:44,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:29:44,604 INFO L482 AbstractCegarLoop]: Abstraction has 10531 states and 29822 transitions. [2021-06-05 11:29:44,604 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:29:44,604 INFO L276 IsEmpty]: Start isEmpty. Operand 10531 states and 29822 transitions. [2021-06-05 11:29:44,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-06-05 11:29:44,610 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:29:44,610 INFO L521 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 11:29:44,611 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-06-05 11:29:44,611 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:29:44,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:29:44,611 INFO L82 PathProgramCache]: Analyzing trace with hash 2013609045, now seen corresponding path program 1 times [2021-06-05 11:29:44,611 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:29:44,611 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137596220] [2021-06-05 11:29:44,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:29:44,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:29:44,656 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:29:44,656 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:29:44,656 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137596220] [2021-06-05 11:29:44,656 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1137596220] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 11:29:44,656 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [259966981] [2021-06-05 11:29:44,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 11:29:44,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:29:44,742 INFO L263 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 6 conjunts are in the unsatisfiable core [2021-06-05 11:29:44,745 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 11:29:44,848 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:29:44,848 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [259966981] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 11:29:44,848 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-05 11:29:44,848 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2021-06-05 11:29:44,850 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873199732] [2021-06-05 11:29:44,850 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 11:29:44,850 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:29:44,850 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 11:29:44,850 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-06-05 11:29:44,850 INFO L87 Difference]: Start difference. First operand 10531 states and 29822 transitions. Second operand has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 9 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:29:44,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:29:44,894 INFO L93 Difference]: Finished difference Result 3445 states and 9208 transitions. [2021-06-05 11:29:44,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 11:29:44,894 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 9 states have internal predecessors, (96), 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 78 [2021-06-05 11:29:44,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:29:44,894 INFO L225 Difference]: With dead ends: 3445 [2021-06-05 11:29:44,894 INFO L226 Difference]: Without dead ends: 0 [2021-06-05 11:29:44,895 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 44.1ms TimeCoverageRelationStatistics Valid=55, Invalid=101, Unknown=0, NotChecked=0, Total=156 [2021-06-05 11:29:44,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-06-05 11:29:44,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-06-05 11:29:44,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:29:44,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-06-05 11:29:44,895 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 78 [2021-06-05 11:29:44,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:29:44,895 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-06-05 11:29:44,895 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 9 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:29:44,896 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-06-05 11:29:44,896 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-06-05 11:29:45,112 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-06-05 11:29:45,113 INFO L315 ceAbstractionStarter]: Result for error location AllErrorsAtOnce was SAFE (1/2) [2021-06-05 11:29:45,113 INFO L255 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-06-05 11:29:45,114 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-05 11:29:45,114 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-05 11:29:45,114 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-05 11:29:45,114 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-05 11:29:45,114 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-05 11:29:45,114 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-05 11:29:45,114 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-05 11:29:45,114 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == InUseError======== [2021-06-05 11:29:45,120 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 131 places, 148 transitions, 314 flow [2021-06-05 11:29:46,364 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 23075 states, 23066 states have (on average 3.5299575132229255) internal successors, (81422), 23074 states have internal predecessors, (81422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:29:46,397 INFO L276 IsEmpty]: Start isEmpty. Operand has 23075 states, 23066 states have (on average 3.5299575132229255) internal successors, (81422), 23074 states have internal predecessors, (81422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:29:46,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-06-05 11:29:46,402 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:29:46,402 INFO L521 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 11:29:46,403 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-06-05 11:29:46,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:29:46,403 INFO L82 PathProgramCache]: Analyzing trace with hash 205564304, now seen corresponding path program 1 times [2021-06-05 11:29:46,403 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:29:46,403 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623641303] [2021-06-05 11:29:46,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:29:46,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-05 11:29:46,414 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-05 11:29:46,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-05 11:29:46,424 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-05 11:29:46,436 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-06-05 11:29:46,437 INFO L622 BasicCegarLoop]: Counterexample might be feasible [2021-06-05 11:29:46,437 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-06-05 11:29:46,437 INFO L315 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (2/2) [2021-06-05 11:29:46,437 WARN L242 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2021-06-05 11:29:46,437 INFO L510 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2021-06-05 11:29:46,451 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:46,451 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:46,451 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:46,451 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:46,451 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:46,451 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:46,451 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:46,451 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:46,451 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:46,451 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:46,452 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:46,452 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:46,452 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:46,452 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:46,452 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:46,452 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:46,452 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:46,452 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:46,452 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:46,452 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:46,452 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:46,452 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:46,452 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:46,453 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:46,453 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:46,453 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:46,453 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:46,453 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:46,453 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:46,453 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:46,453 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:46,453 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:46,453 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:46,453 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:46,453 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:46,453 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:46,454 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:46,454 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:46,454 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:46,454 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:46,454 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:46,454 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:46,454 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:46,454 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:46,454 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:46,454 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:46,454 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:46,454 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:46,455 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:46,455 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:46,455 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:46,455 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:46,455 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:46,455 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:46,455 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:46,455 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:46,455 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:46,456 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:46,456 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:46,456 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:46,456 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:46,456 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:46,458 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:46,458 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:46,459 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:46,459 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:46,459 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:46,459 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:46,459 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:46,459 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:46,459 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:46,459 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:46,459 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:46,459 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:46,460 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:46,460 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:46,460 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:46,460 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:46,460 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:46,460 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:46,460 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:46,460 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:46,460 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:46,460 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:46,460 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:46,460 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:46,460 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:46,460 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:46,461 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:46,461 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:46,461 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:46,461 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:46,461 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:46,461 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:46,461 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:46,461 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:46,461 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:46,461 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:46,461 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:46,461 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:46,461 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:46,461 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:46,461 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:46,462 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:46,462 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:46,462 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:46,462 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:46,462 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:46,462 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:46,462 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:46,462 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:46,462 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:46,462 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:46,463 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:46,463 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:46,463 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:46,463 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:46,464 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:46,464 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:46,464 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:46,464 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:46,464 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:46,464 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:46,464 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:46,464 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:46,464 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:46,465 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:46,465 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:46,465 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:46,465 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:46,465 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:46,466 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:46,466 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:46,466 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:46,466 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:29:46,473 INFO L149 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-06-05 11:29:46,474 INFO L255 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-06-05 11:29:46,475 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-05 11:29:46,475 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-05 11:29:46,475 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-05 11:29:46,475 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-05 11:29:46,475 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-05 11:29:46,475 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-05 11:29:46,475 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-05 11:29:46,475 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-05 11:29:46,477 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 156 places, 178 transitions, 386 flow [2021-06-05 11:37:48,543 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 537562 states, 537548 states have (on average 4.730515228407509) internal successors, (2542879), 537561 states have internal predecessors, (2542879), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:37:49,234 INFO L276 IsEmpty]: Start isEmpty. Operand has 537562 states, 537548 states have (on average 4.730515228407509) internal successors, (2542879), 537561 states have internal predecessors, (2542879), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:37:49,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-06-05 11:37:49,235 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:37:49,235 INFO L521 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] [2021-06-05 11:37:49,235 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:37:49,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:37:49,236 INFO L82 PathProgramCache]: Analyzing trace with hash -1022792044, now seen corresponding path program 1 times [2021-06-05 11:37:49,236 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:37:49,236 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998885916] [2021-06-05 11:37:49,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:37:49,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:37:49,249 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:37:49,250 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:37:49,250 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1998885916] [2021-06-05 11:37:49,250 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1998885916] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:37:49,250 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:37:49,250 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-05 11:37:49,250 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900521135] [2021-06-05 11:37:49,250 INFO L462 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-06-05 11:37:49,250 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:37:49,250 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-06-05 11:37:49,250 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-06-05 11:37:49,848 INFO L87 Difference]: Start difference. First operand has 537562 states, 537548 states have (on average 4.730515228407509) internal successors, (2542879), 537561 states have internal predecessors, (2542879), 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 24.0) internal successors, (48), 2 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:37:55,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:37:55,342 INFO L93 Difference]: Finished difference Result 524842 states and 2019365 transitions. [2021-06-05 11:37:55,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-05 11:37:55,342 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 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 48 [2021-06-05 11:37:55,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:37:57,484 INFO L225 Difference]: With dead ends: 524842 [2021-06-05 11:37:57,485 INFO L226 Difference]: Without dead ends: 256643 [2021-06-05 11:37:57,485 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-06-05 11:38:22,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256643 states. [2021-06-05 11:38:27,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256643 to 256643. [2021-06-05 11:38:27,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256643 states, 256639 states have (on average 3.819731217780618) internal successors, (980292), 256642 states have internal predecessors, (980292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:38:29,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256643 states to 256643 states and 980292 transitions. [2021-06-05 11:38:29,216 INFO L78 Accepts]: Start accepts. Automaton has 256643 states and 980292 transitions. Word has length 48 [2021-06-05 11:38:29,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:38:29,216 INFO L482 AbstractCegarLoop]: Abstraction has 256643 states and 980292 transitions. [2021-06-05 11:38:29,217 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:38:29,217 INFO L276 IsEmpty]: Start isEmpty. Operand 256643 states and 980292 transitions. [2021-06-05 11:38:29,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-06-05 11:38:29,217 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:38:29,217 INFO L521 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] [2021-06-05 11:38:29,217 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-06-05 11:38:29,217 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:38:29,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:38:29,218 INFO L82 PathProgramCache]: Analyzing trace with hash -893709325, now seen corresponding path program 1 times [2021-06-05 11:38:29,218 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:38:29,218 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850368217] [2021-06-05 11:38:29,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:38:29,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:38:29,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:38:29,236 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:38:29,236 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1850368217] [2021-06-05 11:38:29,236 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1850368217] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:38:29,236 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:38:29,236 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-05 11:38:29,236 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595451469] [2021-06-05 11:38:29,236 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-05 11:38:29,236 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:38:29,237 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-05 11:38:29,237 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 11:38:29,237 INFO L87 Difference]: Start difference. First operand 256643 states and 980292 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:38:31,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:38:31,543 INFO L93 Difference]: Finished difference Result 256629 states and 980277 transitions. [2021-06-05 11:38:31,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-05 11:38:31,544 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 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 48 [2021-06-05 11:38:31,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:38:32,809 INFO L225 Difference]: With dead ends: 256629 [2021-06-05 11:38:32,809 INFO L226 Difference]: Without dead ends: 256629 [2021-06-05 11:38:32,810 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 11:38:57,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256629 states. [2021-06-05 11:39:01,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256629 to 256629. [2021-06-05 11:39:02,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256629 states, 256626 states have (on average 3.8198662645250288) internal successors, (980277), 256628 states have internal predecessors, (980277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:39:04,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256629 states to 256629 states and 980277 transitions. [2021-06-05 11:39:04,102 INFO L78 Accepts]: Start accepts. Automaton has 256629 states and 980277 transitions. Word has length 48 [2021-06-05 11:39:04,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:39:04,102 INFO L482 AbstractCegarLoop]: Abstraction has 256629 states and 980277 transitions. [2021-06-05 11:39:04,102 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:39:04,102 INFO L276 IsEmpty]: Start isEmpty. Operand 256629 states and 980277 transitions. [2021-06-05 11:39:04,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-06-05 11:39:04,103 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:39:04,103 INFO L521 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] [2021-06-05 11:39:04,103 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-06-05 11:39:04,103 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:39:04,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:39:04,103 INFO L82 PathProgramCache]: Analyzing trace with hash -1168457378, now seen corresponding path program 1 times [2021-06-05 11:39:04,104 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:39:04,104 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115638021] [2021-06-05 11:39:04,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:39:04,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:39:04,152 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:39:04,153 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:39:04,153 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2115638021] [2021-06-05 11:39:04,153 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2115638021] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 11:39:04,153 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [344272688] [2021-06-05 11:39:04,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 11:39:04,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:39:04,234 INFO L263 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 3 conjunts are in the unsatisfiable core [2021-06-05 11:39:04,235 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 11:39:04,294 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-05 11:39:04,294 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [344272688] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:39:04,294 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-06-05 11:39:04,294 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2021-06-05 11:39:04,294 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1578832577] [2021-06-05 11:39:04,294 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-05 11:39:04,295 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:39:04,295 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-05 11:39:04,295 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-06-05 11:39:04,296 INFO L87 Difference]: Start difference. First operand 256629 states and 980277 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:39:06,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:39:06,386 INFO L93 Difference]: Finished difference Result 282067 states and 1064892 transitions. [2021-06-05 11:39:06,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-05 11:39:06,386 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 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 58 [2021-06-05 11:39:06,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:39:07,925 INFO L225 Difference]: With dead ends: 282067 [2021-06-05 11:39:07,925 INFO L226 Difference]: Without dead ends: 256629 [2021-06-05 11:39:07,926 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 9.8ms TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-06-05 11:39:33,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256629 states. [2021-06-05 11:39:38,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256629 to 256629. [2021-06-05 11:39:38,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256629 states, 256626 states have (on average 3.7703038663268726) internal successors, (967558), 256628 states have internal predecessors, (967558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:39:39,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256629 states to 256629 states and 967558 transitions. [2021-06-05 11:39:39,818 INFO L78 Accepts]: Start accepts. Automaton has 256629 states and 967558 transitions. Word has length 58 [2021-06-05 11:39:39,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:39:39,818 INFO L482 AbstractCegarLoop]: Abstraction has 256629 states and 967558 transitions. [2021-06-05 11:39:39,818 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:39:39,819 INFO L276 IsEmpty]: Start isEmpty. Operand 256629 states and 967558 transitions. [2021-06-05 11:39:39,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-06-05 11:39:39,820 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:39:39,820 INFO L521 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] [2021-06-05 11:39:40,032 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 11:39:40,033 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:39:40,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:39:40,033 INFO L82 PathProgramCache]: Analyzing trace with hash -798786115, now seen corresponding path program 1 times [2021-06-05 11:39:40,033 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:39:40,033 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139295911] [2021-06-05 11:39:40,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:39:40,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:39:40,060 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:39:40,060 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:39:40,060 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139295911] [2021-06-05 11:39:40,061 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1139295911] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 11:39:40,061 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [134503315] [2021-06-05 11:39:40,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 11:39:40,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:39:40,137 INFO L263 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 4 conjunts are in the unsatisfiable core [2021-06-05 11:39:40,138 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 11:39:40,218 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:39:40,218 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [134503315] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 11:39:40,218 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-05 11:39:40,219 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2021-06-05 11:39:40,219 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1533105645] [2021-06-05 11:39:40,219 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 11:39:40,219 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:39:40,221 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 11:39:40,221 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-06-05 11:39:40,222 INFO L87 Difference]: Start difference. First operand 256629 states and 967558 transitions. Second operand has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:39:41,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:39:41,881 INFO L93 Difference]: Finished difference Result 256307 states and 966928 transitions. [2021-06-05 11:39:41,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-05 11:39:41,881 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2021-06-05 11:39:41,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:39:43,281 INFO L225 Difference]: With dead ends: 256307 [2021-06-05 11:39:43,281 INFO L226 Difference]: Without dead ends: 256307 [2021-06-05 11:39:43,281 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 24.5ms TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2021-06-05 11:40:08,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256307 states. [2021-06-05 11:40:12,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256307 to 256307. [2021-06-05 11:40:12,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256307 states, 256305 states have (on average 3.77256783909795) internal successors, (966928), 256306 states have internal predecessors, (966928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:40:14,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256307 states to 256307 states and 966928 transitions. [2021-06-05 11:40:14,872 INFO L78 Accepts]: Start accepts. Automaton has 256307 states and 966928 transitions. Word has length 60 [2021-06-05 11:40:14,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:40:14,873 INFO L482 AbstractCegarLoop]: Abstraction has 256307 states and 966928 transitions. [2021-06-05 11:40:14,873 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:40:14,873 INFO L276 IsEmpty]: Start isEmpty. Operand 256307 states and 966928 transitions. [2021-06-05 11:40:14,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-06-05 11:40:14,879 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:40:14,880 INFO L521 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 11:40:15,092 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-06-05 11:40:15,093 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:40:15,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:40:15,093 INFO L82 PathProgramCache]: Analyzing trace with hash 1833777415, now seen corresponding path program 1 times [2021-06-05 11:40:15,093 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:40:15,093 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950608775] [2021-06-05 11:40:15,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:40:15,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:40:15,208 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-06-05 11:40:15,208 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:40:15,208 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950608775] [2021-06-05 11:40:15,208 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1950608775] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:40:15,208 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:40:15,208 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-06-05 11:40:15,209 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739936266] [2021-06-05 11:40:15,209 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-05 11:40:15,209 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:40:15,210 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-05 11:40:15,210 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-06-05 11:40:15,210 INFO L87 Difference]: Start difference. First operand 256307 states and 966928 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:40:17,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:40:17,660 INFO L93 Difference]: Finished difference Result 291515 states and 1089474 transitions. [2021-06-05 11:40:17,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-05 11:40:17,661 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 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 70 [2021-06-05 11:40:17,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:40:19,742 INFO L225 Difference]: With dead ends: 291515 [2021-06-05 11:40:19,743 INFO L226 Difference]: Without dead ends: 253427 [2021-06-05 11:40:19,744 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 38.4ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-06-05 11:40:45,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253427 states. [2021-06-05 11:40:49,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253427 to 253427. [2021-06-05 11:40:49,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 253427 states, 253425 states have (on average 3.771245930748742) internal successors, (955728), 253426 states have internal predecessors, (955728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:40:51,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253427 states to 253427 states and 955728 transitions. [2021-06-05 11:40:51,208 INFO L78 Accepts]: Start accepts. Automaton has 253427 states and 955728 transitions. Word has length 70 [2021-06-05 11:40:51,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:40:51,208 INFO L482 AbstractCegarLoop]: Abstraction has 253427 states and 955728 transitions. [2021-06-05 11:40:51,209 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:40:51,209 INFO L276 IsEmpty]: Start isEmpty. Operand 253427 states and 955728 transitions. [2021-06-05 11:40:51,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-06-05 11:40:51,228 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:40:51,228 INFO L521 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 11:40:51,228 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-06-05 11:40:51,228 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:40:51,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:40:51,229 INFO L82 PathProgramCache]: Analyzing trace with hash -593347735, now seen corresponding path program 1 times [2021-06-05 11:40:51,229 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:40:51,229 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795870650] [2021-06-05 11:40:51,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:40:51,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:40:51,265 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:40:51,265 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:40:51,265 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795870650] [2021-06-05 11:40:51,265 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1795870650] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 11:40:51,265 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1241645150] [2021-06-05 11:40:51,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 11:40:51,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:40:51,352 INFO L263 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 6 conjunts are in the unsatisfiable core [2021-06-05 11:40:51,353 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 11:40:51,450 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:40:51,450 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1241645150] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 11:40:51,450 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-05 11:40:51,450 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2021-06-05 11:40:51,451 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513237169] [2021-06-05 11:40:51,451 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 11:40:51,451 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:40:51,451 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 11:40:51,451 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-06-05 11:40:51,451 INFO L87 Difference]: Start difference. First operand 253427 states and 955728 transitions. Second operand has 9 states, 9 states have (on average 9.777777777777779) internal successors, (88), 9 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:40:53,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:40:53,522 INFO L93 Difference]: Finished difference Result 246341 states and 935114 transitions. [2021-06-05 11:40:53,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 11:40:53,523 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.777777777777779) internal successors, (88), 9 states have internal predecessors, (88), 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 78 [2021-06-05 11:40:53,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:40:54,920 INFO L225 Difference]: With dead ends: 246341 [2021-06-05 11:40:54,920 INFO L226 Difference]: Without dead ends: 246341 [2021-06-05 11:40:54,920 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 43.0ms TimeCoverageRelationStatistics Valid=55, Invalid=101, Unknown=0, NotChecked=0, Total=156 [2021-06-05 11:41:19,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246341 states. [2021-06-05 11:41:23,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246341 to 246341. [2021-06-05 11:41:23,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246341 states, 246340 states have (on average 3.7960298774052124) internal successors, (935114), 246340 states have internal predecessors, (935114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:41:25,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246341 states to 246341 states and 935114 transitions. [2021-06-05 11:41:25,342 INFO L78 Accepts]: Start accepts. Automaton has 246341 states and 935114 transitions. Word has length 78 [2021-06-05 11:41:25,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:41:25,342 INFO L482 AbstractCegarLoop]: Abstraction has 246341 states and 935114 transitions. [2021-06-05 11:41:25,343 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 9.777777777777779) internal successors, (88), 9 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:41:25,343 INFO L276 IsEmpty]: Start isEmpty. Operand 246341 states and 935114 transitions. [2021-06-05 11:41:25,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-06-05 11:41:25,424 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:41:25,424 INFO L521 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 11:41:25,628 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-06-05 11:41:25,632 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:41:25,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:41:25,633 INFO L82 PathProgramCache]: Analyzing trace with hash -206939552, now seen corresponding path program 1 times [2021-06-05 11:41:25,633 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:41:25,633 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960850996] [2021-06-05 11:41:25,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:41:25,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:41:25,689 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:41:25,690 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:41:25,690 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960850996] [2021-06-05 11:41:25,690 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [960850996] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 11:41:25,690 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1114620353] [2021-06-05 11:41:25,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 11:41:25,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:41:25,775 INFO L263 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 8 conjunts are in the unsatisfiable core [2021-06-05 11:41:25,775 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-05 11:41:25,890 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:41:25,891 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1114620353] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-05 11:41:25,891 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-05 11:41:25,891 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 11 [2021-06-05 11:41:25,891 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862767008] [2021-06-05 11:41:25,891 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-05 11:41:25,891 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:41:25,892 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-05 11:41:25,892 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2021-06-05 11:41:25,892 INFO L87 Difference]: Start difference. First operand 246341 states and 935114 transitions. Second operand has 11 states, 11 states have (on average 8.909090909090908) internal successors, (98), 11 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:41:26,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:41:26,814 INFO L93 Difference]: Finished difference Result 78563 states and 286220 transitions. [2021-06-05 11:41:26,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-05 11:41:26,814 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.909090909090908) internal successors, (98), 11 states have internal predecessors, (98), 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 88 [2021-06-05 11:41:26,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:41:26,814 INFO L225 Difference]: With dead ends: 78563 [2021-06-05 11:41:26,814 INFO L226 Difference]: Without dead ends: 0 [2021-06-05 11:41:26,814 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 60.6ms TimeCoverageRelationStatistics Valid=92, Invalid=180, Unknown=0, NotChecked=0, Total=272 [2021-06-05 11:41:26,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-06-05 11:41:26,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-06-05 11:41:26,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:41:26,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-06-05 11:41:26,815 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 88 [2021-06-05 11:41:26,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:41:26,815 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-06-05 11:41:26,815 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 8.909090909090908) internal successors, (98), 11 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 11:41:26,815 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-06-05 11:41:26,815 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-06-05 11:41:27,015 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-05 11:41:27,016 INFO L315 ceAbstractionStarter]: Result for error location AllErrorsAtOnce was SAFE (1/2) [2021-06-05 11:41:27,016 INFO L255 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-06-05 11:41:27,016 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-05 11:41:27,016 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-05 11:41:27,016 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-05 11:41:27,016 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-05 11:41:27,017 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-05 11:41:27,017 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-05 11:41:27,017 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-05 11:41:27,017 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == InUseError======== [2021-06-05 11:41:27,017 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 156 places, 178 transitions, 386 flow Received shutdown request... [2021-06-05 11:42:52,947 WARN L547 AbstractCegarLoop]: Verification canceled [2021-06-05 11:42:52,947 INFO L315 ceAbstractionStarter]: Result for error location InUseError was TIMEOUT (2/2) [2021-06-05 11:42:52,948 INFO L246 ceAbstractionStarter]: Analysis of concurrent program completed with 3 thread instances [2021-06-05 11:42:52,949 WARN L196 ceAbstractionStarter]: Timeout [2021-06-05 11:42:52,950 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.06 11:42:52 BasicIcfg [2021-06-05 11:42:52,950 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-05 11:42:52,950 INFO L168 Benchmark]: Toolchain (without parser) took 795770.80 ms. Allocated memory was 356.5 MB in the beginning and 15.6 GB in the end (delta: 15.3 GB). Free memory was 317.9 MB in the beginning and 8.8 GB in the end (delta: -8.4 GB). Peak memory consumption was 7.4 GB. Max. memory is 16.0 GB. [2021-06-05 11:42:52,950 INFO L168 Benchmark]: CDTParser took 0.09 ms. Allocated memory is still 356.5 MB. Free memory was 336.4 MB in the beginning and 336.3 MB in the end (delta: 70.4 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-05 11:42:52,950 INFO L168 Benchmark]: CACSL2BoogieTranslator took 539.92 ms. Allocated memory is still 356.5 MB. Free memory was 317.7 MB in the beginning and 294.8 MB in the end (delta: 22.9 MB). Peak memory consumption was 23.7 MB. Max. memory is 16.0 GB. [2021-06-05 11:42:52,951 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.89 ms. Allocated memory is still 356.5 MB. Free memory was 294.8 MB in the beginning and 292.6 MB in the end (delta: 2.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. [2021-06-05 11:42:52,951 INFO L168 Benchmark]: Boogie Preprocessor took 38.29 ms. Allocated memory is still 356.5 MB. Free memory was 291.6 MB in the beginning and 290.6 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-05 11:42:52,951 INFO L168 Benchmark]: RCFGBuilder took 398.94 ms. Allocated memory is still 356.5 MB. Free memory was 290.6 MB in the beginning and 260.2 MB in the end (delta: 30.4 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.0 GB. [2021-06-05 11:42:52,951 INFO L168 Benchmark]: TraceAbstraction took 794734.61 ms. Allocated memory was 356.5 MB in the beginning and 15.6 GB in the end (delta: 15.3 GB). Free memory was 260.2 MB in the beginning and 8.8 GB in the end (delta: -8.5 GB). Peak memory consumption was 7.3 GB. Max. memory is 16.0 GB. [2021-06-05 11:42:52,951 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09 ms. Allocated memory is still 356.5 MB. Free memory was 336.4 MB in the beginning and 336.3 MB in the end (delta: 70.4 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 539.92 ms. Allocated memory is still 356.5 MB. Free memory was 317.7 MB in the beginning and 294.8 MB in the end (delta: 22.9 MB). Peak memory consumption was 23.7 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 52.89 ms. Allocated memory is still 356.5 MB. Free memory was 294.8 MB in the beginning and 292.6 MB in the end (delta: 2.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 38.29 ms. Allocated memory is still 356.5 MB. Free memory was 291.6 MB in the beginning and 290.6 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 398.94 ms. Allocated memory is still 356.5 MB. Free memory was 290.6 MB in the beginning and 260.2 MB in the end (delta: 30.4 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.0 GB. * TraceAbstraction took 794734.61 ms. Allocated memory was 356.5 MB in the beginning and 15.6 GB in the end (delta: 15.3 GB). Free memory was 260.2 MB in the beginning and 8.8 GB in the end (delta: -8.5 GB). Peak memory consumption was 7.3 GB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 939]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was constructing initial abstraction,while PetriNet2FiniteAutomaton was constructing automaton for Petri net that has has 156 places, 178 transitions, 386 flow. Already constructed 256488 states. Currently 27221 states in worklist.. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 127 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1460.2ms, OverallIterations: 4, TraceHistogramMax: 1, EmptinessCheckTime: 17.4ms, AutomataDifference: 119.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 41.5ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 377 SDtfs, 260 SDslu, 268 SDs, 0 SdLazy, 20 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 16.2ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 133 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 41.6ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=1018occurred in iteration=0, InterpolantAutomatonStates: 14, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 71.0ms AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 41.0ms SsaConstructionTime, 125.1ms SatisfiabilityAnalysisTime, 403.2ms InterpolantComputationTime, 332 NumberOfCodeBlocks, 332 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 326 ConstructedInterpolants, 0 QuantifiedInterpolants, 398 SizeOfPredicates, 2 NumberOfNonLiveVariables, 333 ConjunctsInSsa, 7 ConjunctsInUnsatCore, 6 InterpolantComputations, 3 PerfectInterpolantSequences, 1/4 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 - StatisticsResult: Ultimate Automizer benchmark data with 2 thread instances CFG has 4 procedures, 150 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5287.3ms, OverallIterations: 6, TraceHistogramMax: 2, EmptinessCheckTime: 50.8ms, AutomataDifference: 728.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1404.5ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 822 SDtfs, 917 SDslu, 1256 SDs, 0 SdLazy, 100 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 50.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 229 GetRequests, 200 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 98.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=23075occurred in iteration=0, InterpolantAutomatonStates: 30, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 1623.6ms AutomataMinimizationTime, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 41.3ms SsaConstructionTime, 142.0ms SatisfiabilityAnalysisTime, 429.4ms InterpolantComputationTime, 558 NumberOfCodeBlocks, 558 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 549 ConstructedInterpolants, 0 QuantifiedInterpolants, 844 SizeOfPredicates, 6 NumberOfNonLiveVariables, 542 ConjunctsInSsa, 13 ConjunctsInUnsatCore, 9 InterpolantComputations, 4 PerfectInterpolantSequences, 13/40 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 - StatisticsResult: Ultimate Automizer benchmark data with 3 thread instances CFG has 5 procedures, 173 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 700541.3ms, OverallIterations: 7, TraceHistogramMax: 3, EmptinessCheckTime: 777.6ms, AutomataDifference: 27427.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 482091.5ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 1214 SDtfs, 1633 SDslu, 2929 SDs, 0 SdLazy, 178 SolverSat, 11 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 148.4ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 331 GetRequests, 287 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 178.2ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=537562occurred in iteration=0, InterpolantAutomatonStates: 42, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 188391.6ms AutomataMinimizationTime, 7 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 52.6ms SsaConstructionTime, 105.2ms SatisfiabilityAnalysisTime, 599.5ms InterpolantComputationTime, 734 NumberOfCodeBlocks, 734 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 723 ConstructedInterpolants, 0 QuantifiedInterpolants, 1150 SizeOfPredicates, 12 NumberOfNonLiveVariables, 770 ConjunctsInSsa, 21 ConjunctsInUnsatCore, 11 InterpolantComputations, 4 PerfectInterpolantSequences, 13/106 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 - StatisticsResult: Ultimate Automizer benchmark data for thread instance sufficiency with 1 thread instances CFG has 3 procedures, 127 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 63.4ms, OverallIterations: 1, TraceHistogramMax: 2, EmptinessCheckTime: 2.1ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 12.3ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=1018occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 1.1ms SsaConstructionTime, 12.5ms SatisfiabilityAnalysisTime, 0.0ms InterpolantComputationTime, 51 NumberOfCodeBlocks, 51 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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 - StatisticsResult: Ultimate Automizer benchmark data for thread instance sufficiency with 2 thread instances CFG has 4 procedures, 150 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1323.3ms, OverallIterations: 1, TraceHistogramMax: 3, EmptinessCheckTime: 38.2ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1249.9ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=23075occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 1.2ms SsaConstructionTime, 7.7ms SatisfiabilityAnalysisTime, 0.0ms InterpolantComputationTime, 61 NumberOfCodeBlocks, 61 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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 - StatisticsResult: Ultimate Automizer benchmark data for thread instance sufficiency with 3 thread instances CFG has 5 procedures, 173 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: TIMEOUT, OverallTime: 85931.0ms, OverallIterations: 0, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 85930.4ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown