/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-SP.epf -i ../../../trunk/examples/svcomp/goblint-regression/28-race_reach_40-trylock_racing.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-1d1d2b5 [2020-10-22 02:39:51,059 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-22 02:39:51,061 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-22 02:39:51,087 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-22 02:39:51,087 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-22 02:39:51,088 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-22 02:39:51,090 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-22 02:39:51,092 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-22 02:39:51,093 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-22 02:39:51,094 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-22 02:39:51,095 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-22 02:39:51,096 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-22 02:39:51,096 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-22 02:39:51,097 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-22 02:39:51,098 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-22 02:39:51,100 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-22 02:39:51,100 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-22 02:39:51,101 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-22 02:39:51,103 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-22 02:39:51,105 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-22 02:39:51,107 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-22 02:39:51,108 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-22 02:39:51,110 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-22 02:39:51,111 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-22 02:39:51,113 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-22 02:39:51,114 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-22 02:39:51,114 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-22 02:39:51,115 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-22 02:39:51,116 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-22 02:39:51,116 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-22 02:39:51,117 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-22 02:39:51,118 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-22 02:39:51,118 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-22 02:39:51,119 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-22 02:39:51,123 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-22 02:39:51,123 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-22 02:39:51,124 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-22 02:39:51,124 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-22 02:39:51,125 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-22 02:39:51,126 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-22 02:39:51,126 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-22 02:39:51,128 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-SP.epf [2020-10-22 02:39:51,172 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-22 02:39:51,172 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-22 02:39:51,175 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-22 02:39:51,175 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-22 02:39:51,175 INFO L138 SettingsManager]: * Use SBE=true [2020-10-22 02:39:51,175 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-22 02:39:51,177 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-22 02:39:51,177 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-22 02:39:51,177 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-22 02:39:51,177 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-22 02:39:51,178 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-22 02:39:51,179 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-22 02:39:51,179 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-22 02:39:51,179 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-22 02:39:51,179 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-22 02:39:51,180 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-22 02:39:51,180 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-22 02:39:51,180 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-22 02:39:51,180 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-22 02:39:51,181 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-22 02:39:51,181 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-22 02:39:51,181 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-22 02:39:51,181 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-22 02:39:51,181 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-22 02:39:51,182 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-22 02:39:51,182 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-22 02:39:51,182 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-22 02:39:51,182 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-10-22 02:39:51,183 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-22 02:39:51,183 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-22 02:39:51,183 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-10-22 02:39:51,513 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-22 02:39:51,534 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-22 02:39:51,538 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-22 02:39:51,540 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-22 02:39:51,540 INFO L275 PluginConnector]: CDTParser initialized [2020-10-22 02:39:51,541 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/28-race_reach_40-trylock_racing.i [2020-10-22 02:39:51,617 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3131b2374/217944d9a6c9405ab651c00b065615f7/FLAGe90220bc1 [2020-10-22 02:39:52,130 INFO L306 CDTParser]: Found 1 translation units. [2020-10-22 02:39:52,131 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_40-trylock_racing.i [2020-10-22 02:39:52,151 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3131b2374/217944d9a6c9405ab651c00b065615f7/FLAGe90220bc1 [2020-10-22 02:39:52,416 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3131b2374/217944d9a6c9405ab651c00b065615f7 [2020-10-22 02:39:52,425 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-22 02:39:52,433 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-22 02:39:52,434 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-22 02:39:52,434 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-22 02:39:52,438 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-22 02:39:52,439 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 02:39:52" (1/1) ... [2020-10-22 02:39:52,442 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2010bc51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:39:52, skipping insertion in model container [2020-10-22 02:39:52,442 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 02:39:52" (1/1) ... [2020-10-22 02:39:52,450 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-22 02:39:52,489 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-22 02:39:52,979 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-22 02:39:53,000 INFO L203 MainTranslator]: Completed pre-run [2020-10-22 02:39:53,085 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-22 02:39:53,174 INFO L208 MainTranslator]: Completed translation [2020-10-22 02:39:53,175 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:39:53 WrapperNode [2020-10-22 02:39:53,175 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-22 02:39:53,176 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-22 02:39:53,176 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-22 02:39:53,176 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-22 02:39:53,185 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:39:53" (1/1) ... [2020-10-22 02:39:53,201 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:39:53" (1/1) ... [2020-10-22 02:39:53,224 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-22 02:39:53,224 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-22 02:39:53,225 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-22 02:39:53,225 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-22 02:39:53,233 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:39:53" (1/1) ... [2020-10-22 02:39:53,234 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:39:53" (1/1) ... [2020-10-22 02:39:53,242 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:39:53" (1/1) ... [2020-10-22 02:39:53,242 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:39:53" (1/1) ... [2020-10-22 02:39:53,250 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:39:53" (1/1) ... [2020-10-22 02:39:53,259 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:39:53" (1/1) ... [2020-10-22 02:39:53,261 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:39:53" (1/1) ... [2020-10-22 02:39:53,264 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-22 02:39:53,265 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-22 02:39:53,265 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-22 02:39:53,265 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-22 02:39:53,266 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:39:53" (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 [2020-10-22 02:39:53,335 INFO L130 BoogieDeclarations]: Found specification of procedure pthread_mutex_trylock [2020-10-22 02:39:53,336 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-22 02:39:53,336 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-22 02:39:53,336 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2020-10-22 02:39:53,336 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-22 02:39:53,337 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2020-10-22 02:39:53,337 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2020-10-22 02:39:53,337 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-22 02:39:53,337 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-22 02:39:53,337 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-22 02:39:53,338 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-22 02:39:53,340 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-22 02:39:53,783 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-22 02:39:53,784 INFO L298 CfgBuilder]: Removed 18 assume(true) statements. [2020-10-22 02:39:53,786 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 02:39:53 BoogieIcfgContainer [2020-10-22 02:39:53,786 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-22 02:39:53,787 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-22 02:39:53,788 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-22 02:39:53,791 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-22 02:39:53,792 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 02:39:52" (1/3) ... [2020-10-22 02:39:53,793 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7230a583 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 02:39:53, skipping insertion in model container [2020-10-22 02:39:53,793 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:39:53" (2/3) ... [2020-10-22 02:39:53,794 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7230a583 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 02:39:53, skipping insertion in model container [2020-10-22 02:39:53,794 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 02:39:53" (3/3) ... [2020-10-22 02:39:53,796 INFO L111 eAbstractionObserver]: Analyzing ICFG 28-race_reach_40-trylock_racing.i [2020-10-22 02:39:53,808 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-22 02:39:53,809 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-22 02:39:53,816 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-22 02:39:53,817 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-22 02:39:53,847 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:39:53,847 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:39:53,847 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:39:53,848 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:39:53,849 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:39:53,849 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:39:53,849 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:39:53,850 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:39:53,850 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:39:53,851 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:39:53,851 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:39:53,851 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:39:53,852 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:39:53,852 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:39:53,852 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:39:53,853 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:39:53,853 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:39:53,853 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:39:53,857 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:39:53,858 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:39:53,858 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:39:53,858 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:39:53,859 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:39:53,859 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:39:53,859 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:39:53,859 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:39:53,860 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:39:53,868 INFO L149 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2020-10-22 02:39:53,883 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-10-22 02:39:53,905 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-22 02:39:53,905 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-22 02:39:53,906 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-22 02:39:53,906 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-10-22 02:39:53,906 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-22 02:39:53,906 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-22 02:39:53,906 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-22 02:39:53,906 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-22 02:39:53,922 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-22 02:39:53,922 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 89 places, 99 transitions, 206 flow [2020-10-22 02:39:53,925 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 89 places, 99 transitions, 206 flow [2020-10-22 02:39:53,928 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 89 places, 99 transitions, 206 flow [2020-10-22 02:39:53,995 INFO L129 PetriNetUnfolder]: 19/135 cut-off events. [2020-10-22 02:39:53,996 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2020-10-22 02:39:54,003 INFO L80 FinitePrefix]: Finished finitePrefix Result has 141 conditions, 135 events. 19/135 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 352 event pairs, 0 based on Foata normal form. 0/111 useless extension candidates. Maximal degree in co-relation 68. Up to 4 conditions per place. [2020-10-22 02:39:54,008 INFO L116 LiptonReduction]: Number of co-enabled transitions 2296 [2020-10-22 02:39:55,495 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 62 [2020-10-22 02:39:55,890 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 96 [2020-10-22 02:39:56,024 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-22 02:39:56,465 WARN L193 SmtUtils]: Spent 431.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 110 [2020-10-22 02:39:56,664 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-22 02:39:56,676 INFO L131 LiptonReduction]: Checked pairs total: 3930 [2020-10-22 02:39:56,676 INFO L133 LiptonReduction]: Total number of compositions: 81 [2020-10-22 02:39:56,683 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 27 places, 34 transitions, 76 flow [2020-10-22 02:39:56,696 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 143 states. [2020-10-22 02:39:56,699 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states. [2020-10-22 02:39:56,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-10-22 02:39:56,705 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:39:56,706 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-10-22 02:39:56,706 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:39:56,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:39:56,711 INFO L82 PathProgramCache]: Analyzing trace with hash 12127871, now seen corresponding path program 1 times [2020-10-22 02:39:56,739 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:39:56,740 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637865895] [2020-10-22 02:39:56,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:39:56,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:39:56,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:39:56,953 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [637865895] [2020-10-22 02:39:56,953 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:39:56,954 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-22 02:39:56,954 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [284125193] [2020-10-22 02:39:56,955 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:39:56,958 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:39:56,971 INFO L252 McrAutomatonBuilder]: Finished intersection with 5 states and 4 transitions. [2020-10-22 02:39:56,971 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:39:56,976 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:39:56,977 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-22 02:39:56,977 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:39:56,993 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-22 02:39:56,994 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 02:39:56,996 INFO L87 Difference]: Start difference. First operand 143 states. Second operand 3 states. [2020-10-22 02:39:57,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:39:57,028 INFO L93 Difference]: Finished difference Result 137 states and 244 transitions. [2020-10-22 02:39:57,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-22 02:39:57,030 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-10-22 02:39:57,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:39:57,041 INFO L225 Difference]: With dead ends: 137 [2020-10-22 02:39:57,041 INFO L226 Difference]: Without dead ends: 73 [2020-10-22 02:39:57,043 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 02:39:57,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2020-10-22 02:39:57,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2020-10-22 02:39:57,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2020-10-22 02:39:57,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 126 transitions. [2020-10-22 02:39:57,089 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 126 transitions. Word has length 4 [2020-10-22 02:39:57,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:39:57,090 INFO L481 AbstractCegarLoop]: Abstraction has 73 states and 126 transitions. [2020-10-22 02:39:57,090 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-22 02:39:57,090 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 126 transitions. [2020-10-22 02:39:57,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-10-22 02:39:57,091 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:39:57,091 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2020-10-22 02:39:57,092 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-22 02:39:57,092 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:39:57,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:39:57,092 INFO L82 PathProgramCache]: Analyzing trace with hash -1248074610, now seen corresponding path program 1 times [2020-10-22 02:39:57,094 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:39:57,094 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838487999] [2020-10-22 02:39:57,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:39:57,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-22 02:39:57,130 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-22 02:39:57,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-22 02:39:57,158 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-22 02:39:57,185 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-22 02:39:57,186 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-22 02:39:57,187 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-22 02:39:57,189 WARN L371 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-22 02:39:57,189 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2020-10-22 02:39:57,198 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:39:57,198 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:39:57,198 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:39:57,198 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:39:57,199 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:39:57,199 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:39:57,199 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:39:57,199 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:39:57,200 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:39:57,200 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:39:57,200 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:39:57,200 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:39:57,200 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:39:57,201 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:39:57,201 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:39:57,201 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:39:57,201 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:39:57,201 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:39:57,202 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:39:57,202 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:39:57,202 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:39:57,202 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:39:57,203 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:39:57,203 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:39:57,203 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:39:57,203 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:39:57,204 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:39:57,204 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:39:57,204 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:39:57,204 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:39:57,204 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:39:57,205 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:39:57,205 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:39:57,205 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:39:57,205 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:39:57,205 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:39:57,206 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:39:57,206 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:39:57,207 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:39:57,207 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:39:57,207 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:39:57,207 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:39:57,207 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:39:57,208 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:39:57,208 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:39:57,211 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:39:57,211 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:39:57,212 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:39:57,212 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:39:57,212 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:39:57,212 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:39:57,212 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:39:57,213 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:39:57,213 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:39:57,216 INFO L149 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2020-10-22 02:39:57,216 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-10-22 02:39:57,217 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-22 02:39:57,217 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-22 02:39:57,217 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-22 02:39:57,217 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-10-22 02:39:57,217 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-22 02:39:57,217 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-22 02:39:57,217 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-22 02:39:57,217 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-22 02:39:57,220 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-22 02:39:57,220 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 114 places, 129 transitions, 276 flow [2020-10-22 02:39:57,221 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 114 places, 129 transitions, 276 flow [2020-10-22 02:39:57,221 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 114 places, 129 transitions, 276 flow [2020-10-22 02:39:57,267 INFO L129 PetriNetUnfolder]: 34/224 cut-off events. [2020-10-22 02:39:57,267 INFO L130 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2020-10-22 02:39:57,270 INFO L80 FinitePrefix]: Finished finitePrefix Result has 238 conditions, 224 events. 34/224 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 713 event pairs, 0 based on Foata normal form. 0/183 useless extension candidates. Maximal degree in co-relation 137. Up to 8 conditions per place. [2020-10-22 02:39:57,280 INFO L116 LiptonReduction]: Number of co-enabled transitions 6776 [2020-10-22 02:39:58,459 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 55 [2020-10-22 02:39:59,205 WARN L193 SmtUtils]: Spent 337.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 110 [2020-10-22 02:39:59,403 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-22 02:39:59,425 INFO L131 LiptonReduction]: Checked pairs total: 14746 [2020-10-22 02:39:59,425 INFO L133 LiptonReduction]: Total number of compositions: 92 [2020-10-22 02:39:59,426 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 45 places, 58 transitions, 134 flow [2020-10-22 02:39:59,535 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 2270 states. [2020-10-22 02:39:59,536 INFO L276 IsEmpty]: Start isEmpty. Operand 2270 states. [2020-10-22 02:39:59,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-10-22 02:39:59,537 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:39:59,537 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-10-22 02:39:59,537 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:39:59,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:39:59,538 INFO L82 PathProgramCache]: Analyzing trace with hash 19857691, now seen corresponding path program 1 times [2020-10-22 02:39:59,542 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:39:59,542 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882358704] [2020-10-22 02:39:59,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:39:59,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:39:59,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:39:59,578 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1882358704] [2020-10-22 02:39:59,578 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:39:59,578 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-22 02:39:59,579 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1969712779] [2020-10-22 02:39:59,579 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:39:59,579 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:39:59,580 INFO L252 McrAutomatonBuilder]: Finished intersection with 5 states and 4 transitions. [2020-10-22 02:39:59,581 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:39:59,581 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:39:59,581 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-22 02:39:59,581 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:39:59,582 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-22 02:39:59,582 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 02:39:59,582 INFO L87 Difference]: Start difference. First operand 2270 states. Second operand 3 states. [2020-10-22 02:39:59,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:39:59,649 INFO L93 Difference]: Finished difference Result 2264 states and 6049 transitions. [2020-10-22 02:39:59,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-22 02:39:59,649 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-10-22 02:39:59,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:39:59,668 INFO L225 Difference]: With dead ends: 2264 [2020-10-22 02:39:59,668 INFO L226 Difference]: Without dead ends: 1239 [2020-10-22 02:39:59,669 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 02:39:59,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1239 states. [2020-10-22 02:39:59,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1239 to 1239. [2020-10-22 02:39:59,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1239 states. [2020-10-22 02:39:59,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1239 states to 1239 states and 3284 transitions. [2020-10-22 02:39:59,796 INFO L78 Accepts]: Start accepts. Automaton has 1239 states and 3284 transitions. Word has length 4 [2020-10-22 02:39:59,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:39:59,796 INFO L481 AbstractCegarLoop]: Abstraction has 1239 states and 3284 transitions. [2020-10-22 02:39:59,796 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-22 02:39:59,797 INFO L276 IsEmpty]: Start isEmpty. Operand 1239 states and 3284 transitions. [2020-10-22 02:39:59,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-22 02:39:59,797 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:39:59,798 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:39:59,798 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-22 02:39:59,798 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:39:59,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:39:59,798 INFO L82 PathProgramCache]: Analyzing trace with hash -1374178967, now seen corresponding path program 1 times [2020-10-22 02:39:59,809 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:39:59,809 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772208362] [2020-10-22 02:39:59,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:39:59,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:39:59,855 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:39:59,855 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [772208362] [2020-10-22 02:39:59,855 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [642821434] [2020-10-22 02:39:59,856 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 [2020-10-22 02:39:59,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:39:59,921 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-22 02:39:59,923 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-22 02:39:59,932 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-22 02:39:59,933 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-22 02:39:59,933 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [3] total 4 [2020-10-22 02:39:59,934 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1468229849] [2020-10-22 02:39:59,934 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:39:59,935 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:39:59,936 INFO L252 McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions. [2020-10-22 02:39:59,936 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:39:59,937 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:39:59,937 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-22 02:39:59,937 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:39:59,937 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-22 02:39:59,938 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-22 02:39:59,938 INFO L87 Difference]: Start difference. First operand 1239 states and 3284 transitions. Second operand 3 states. [2020-10-22 02:40:00,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:40:00,016 INFO L93 Difference]: Finished difference Result 1209 states and 3199 transitions. [2020-10-22 02:40:00,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-22 02:40:00,017 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-10-22 02:40:00,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:40:00,026 INFO L225 Difference]: With dead ends: 1209 [2020-10-22 02:40:00,026 INFO L226 Difference]: Without dead ends: 1209 [2020-10-22 02:40:00,027 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-22 02:40:00,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1209 states. [2020-10-22 02:40:00,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1209 to 1209. [2020-10-22 02:40:00,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1209 states. [2020-10-22 02:40:00,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1209 states to 1209 states and 3199 transitions. [2020-10-22 02:40:00,074 INFO L78 Accepts]: Start accepts. Automaton has 1209 states and 3199 transitions. Word has length 8 [2020-10-22 02:40:00,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:40:00,074 INFO L481 AbstractCegarLoop]: Abstraction has 1209 states and 3199 transitions. [2020-10-22 02:40:00,074 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-22 02:40:00,074 INFO L276 IsEmpty]: Start isEmpty. Operand 1209 states and 3199 transitions. [2020-10-22 02:40:00,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-22 02:40:00,076 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:40:00,076 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2020-10-22 02:40:00,290 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-22 02:40:00,291 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:40:00,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:40:00,292 INFO L82 PathProgramCache]: Analyzing trace with hash 881700379, now seen corresponding path program 1 times [2020-10-22 02:40:00,293 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:40:00,294 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59935296] [2020-10-22 02:40:00,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:40:00,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-22 02:40:00,317 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-22 02:40:00,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-22 02:40:00,335 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-22 02:40:00,343 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-22 02:40:00,343 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-22 02:40:00,344 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-22 02:40:00,344 WARN L371 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-22 02:40:00,346 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2020-10-22 02:40:00,354 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:00,354 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:00,354 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:00,355 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:00,355 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:00,355 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:00,355 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:00,355 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:00,356 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:00,356 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:00,356 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:00,356 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:00,356 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:00,356 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:00,357 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:00,357 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:00,357 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:00,357 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:00,358 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:00,358 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:00,358 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:00,358 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:00,358 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:00,358 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:00,359 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:00,359 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:00,359 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:00,359 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:00,359 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:00,360 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:00,360 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:00,360 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:00,360 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:00,360 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:00,360 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:00,361 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:00,361 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:00,361 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:00,361 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:00,361 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:00,362 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:00,362 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:00,362 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:00,362 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:00,362 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:00,363 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:00,363 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:00,363 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:00,363 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:00,363 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:00,367 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:00,367 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:00,367 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:00,368 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:00,368 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:00,368 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:00,369 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:00,369 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:00,369 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:00,369 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:00,369 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:00,369 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:00,370 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:00,384 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:00,384 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:00,384 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:00,384 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:00,384 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:00,385 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:00,385 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:00,385 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:00,385 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:00,387 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:00,387 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:00,387 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:00,387 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:00,387 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:00,387 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:00,388 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:00,388 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:00,388 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:00,391 INFO L149 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2020-10-22 02:40:00,392 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-10-22 02:40:00,392 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-22 02:40:00,392 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-22 02:40:00,392 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-22 02:40:00,392 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-10-22 02:40:00,393 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-22 02:40:00,393 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-22 02:40:00,393 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-22 02:40:00,393 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-22 02:40:00,395 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-22 02:40:00,395 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 139 places, 159 transitions, 348 flow [2020-10-22 02:40:00,395 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 139 places, 159 transitions, 348 flow [2020-10-22 02:40:00,396 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 139 places, 159 transitions, 348 flow [2020-10-22 02:40:00,455 INFO L129 PetriNetUnfolder]: 54/344 cut-off events. [2020-10-22 02:40:00,455 INFO L130 PetriNetUnfolder]: For 19/19 co-relation queries the response was YES. [2020-10-22 02:40:00,461 INFO L80 FinitePrefix]: Finished finitePrefix Result has 372 conditions, 344 events. 54/344 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1276 event pairs, 1 based on Foata normal form. 0/282 useless extension candidates. Maximal degree in co-relation 232. Up to 16 conditions per place. [2020-10-22 02:40:00,479 INFO L116 LiptonReduction]: Number of co-enabled transitions 12768 [2020-10-22 02:40:01,856 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 62 [2020-10-22 02:40:02,464 WARN L193 SmtUtils]: Spent 410.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 110 [2020-10-22 02:40:02,644 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-22 02:40:02,660 INFO L131 LiptonReduction]: Checked pairs total: 28538 [2020-10-22 02:40:02,660 INFO L133 LiptonReduction]: Total number of compositions: 107 [2020-10-22 02:40:02,660 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 59 places, 76 transitions, 182 flow [2020-10-22 02:40:05,795 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 28106 states. [2020-10-22 02:40:05,796 INFO L276 IsEmpty]: Start isEmpty. Operand 28106 states. [2020-10-22 02:40:05,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-10-22 02:40:05,796 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:40:05,796 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-10-22 02:40:05,796 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:40:05,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:40:05,797 INFO L82 PathProgramCache]: Analyzing trace with hash 28970780, now seen corresponding path program 1 times [2020-10-22 02:40:05,798 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:40:05,798 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812018842] [2020-10-22 02:40:05,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:40:05,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:40:05,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:40:05,838 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1812018842] [2020-10-22 02:40:05,838 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:40:05,838 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-22 02:40:05,838 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [341512549] [2020-10-22 02:40:05,838 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:40:05,839 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:40:05,839 INFO L252 McrAutomatonBuilder]: Finished intersection with 5 states and 4 transitions. [2020-10-22 02:40:05,839 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:40:05,840 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:40:05,840 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-22 02:40:05,840 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:40:05,840 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-22 02:40:05,841 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 02:40:05,841 INFO L87 Difference]: Start difference. First operand 28106 states. Second operand 3 states. [2020-10-22 02:40:06,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:40:06,901 INFO L93 Difference]: Finished difference Result 28100 states and 99969 transitions. [2020-10-22 02:40:06,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-22 02:40:06,902 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-10-22 02:40:06,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:40:07,051 INFO L225 Difference]: With dead ends: 28100 [2020-10-22 02:40:07,051 INFO L226 Difference]: Without dead ends: 14919 [2020-10-22 02:40:07,052 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 02:40:07,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14919 states. [2020-10-22 02:40:07,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14919 to 14919. [2020-10-22 02:40:07,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14919 states. [2020-10-22 02:40:07,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14919 states to 14919 states and 53132 transitions. [2020-10-22 02:40:07,973 INFO L78 Accepts]: Start accepts. Automaton has 14919 states and 53132 transitions. Word has length 4 [2020-10-22 02:40:07,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:40:07,973 INFO L481 AbstractCegarLoop]: Abstraction has 14919 states and 53132 transitions. [2020-10-22 02:40:07,973 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-22 02:40:07,973 INFO L276 IsEmpty]: Start isEmpty. Operand 14919 states and 53132 transitions. [2020-10-22 02:40:07,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-22 02:40:07,974 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:40:07,974 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:40:07,975 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-22 02:40:07,975 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:40:07,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:40:07,975 INFO L82 PathProgramCache]: Analyzing trace with hash 1255468561, now seen corresponding path program 1 times [2020-10-22 02:40:07,976 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:40:07,977 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30822586] [2020-10-22 02:40:07,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:40:07,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:40:08,019 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:40:08,020 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [30822586] [2020-10-22 02:40:08,020 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [791270112] [2020-10-22 02:40:08,020 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 [2020-10-22 02:40:08,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:40:08,083 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-22 02:40:08,084 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-22 02:40:08,092 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-22 02:40:08,092 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-22 02:40:08,092 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [3] total 4 [2020-10-22 02:40:08,093 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1573339936] [2020-10-22 02:40:08,093 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:40:08,094 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:40:08,094 INFO L252 McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions. [2020-10-22 02:40:08,095 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:40:08,095 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:40:08,095 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-22 02:40:08,096 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:40:08,096 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-22 02:40:08,096 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-22 02:40:08,096 INFO L87 Difference]: Start difference. First operand 14919 states and 53132 transitions. Second operand 3 states. [2020-10-22 02:40:08,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:40:08,207 INFO L93 Difference]: Finished difference Result 14764 states and 52547 transitions. [2020-10-22 02:40:08,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-22 02:40:08,208 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-10-22 02:40:08,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:40:08,274 INFO L225 Difference]: With dead ends: 14764 [2020-10-22 02:40:08,274 INFO L226 Difference]: Without dead ends: 14764 [2020-10-22 02:40:08,275 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-22 02:40:08,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14764 states. [2020-10-22 02:40:09,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14764 to 14764. [2020-10-22 02:40:09,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14764 states. [2020-10-22 02:40:09,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14764 states to 14764 states and 52547 transitions. [2020-10-22 02:40:09,247 INFO L78 Accepts]: Start accepts. Automaton has 14764 states and 52547 transitions. Word has length 8 [2020-10-22 02:40:09,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:40:09,247 INFO L481 AbstractCegarLoop]: Abstraction has 14764 states and 52547 transitions. [2020-10-22 02:40:09,247 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-22 02:40:09,247 INFO L276 IsEmpty]: Start isEmpty. Operand 14764 states and 52547 transitions. [2020-10-22 02:40:09,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-22 02:40:09,249 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:40:09,249 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:40:09,456 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-22 02:40:09,457 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:40:09,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:40:09,457 INFO L82 PathProgramCache]: Analyzing trace with hash 82722520, now seen corresponding path program 1 times [2020-10-22 02:40:09,459 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:40:09,459 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958154849] [2020-10-22 02:40:09,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:40:09,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:40:09,513 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:40:09,514 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [958154849] [2020-10-22 02:40:09,514 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [756243124] [2020-10-22 02:40:09,514 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 [2020-10-22 02:40:09,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:40:09,579 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-22 02:40:09,580 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-22 02:40:09,638 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2020-10-22 02:40:09,639 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-22 02:40:09,642 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-22 02:40:09,642 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-22 02:40:09,642 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:11, output treesize:7 [2020-10-22 02:40:09,658 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:40:09,658 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-22 02:40:09,659 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2020-10-22 02:40:09,660 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2034093019] [2020-10-22 02:40:09,660 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:40:09,661 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:40:09,664 INFO L252 McrAutomatonBuilder]: Finished intersection with 31 states and 47 transitions. [2020-10-22 02:40:09,665 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:40:09,741 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [158654#(not (= (select (select |#pthreadsMutex| |~#__global_lock~0.base|) |~#__global_lock~0.offset|) 0))] [2020-10-22 02:40:09,741 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-22 02:40:09,741 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:40:09,742 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-22 02:40:09,744 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-22 02:40:09,744 INFO L87 Difference]: Start difference. First operand 14764 states and 52547 transitions. Second operand 4 states. [2020-10-22 02:40:09,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:40:09,923 INFO L93 Difference]: Finished difference Result 8822 states and 24746 transitions. [2020-10-22 02:40:09,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-22 02:40:09,923 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-10-22 02:40:09,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:40:09,948 INFO L225 Difference]: With dead ends: 8822 [2020-10-22 02:40:09,948 INFO L226 Difference]: Without dead ends: 8783 [2020-10-22 02:40:09,949 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-22 02:40:10,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8783 states. [2020-10-22 02:40:10,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8783 to 8617. [2020-10-22 02:40:10,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8617 states. [2020-10-22 02:40:10,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8617 states to 8617 states and 24318 transitions. [2020-10-22 02:40:10,252 INFO L78 Accepts]: Start accepts. Automaton has 8617 states and 24318 transitions. Word has length 13 [2020-10-22 02:40:10,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:40:10,252 INFO L481 AbstractCegarLoop]: Abstraction has 8617 states and 24318 transitions. [2020-10-22 02:40:10,252 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-22 02:40:10,252 INFO L276 IsEmpty]: Start isEmpty. Operand 8617 states and 24318 transitions. [2020-10-22 02:40:10,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-22 02:40:10,254 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:40:10,254 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:40:10,467 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-22 02:40:10,468 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:40:10,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:40:10,468 INFO L82 PathProgramCache]: Analyzing trace with hash -1767270532, now seen corresponding path program 1 times [2020-10-22 02:40:10,470 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:40:10,470 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199112683] [2020-10-22 02:40:10,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:40:10,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:40:10,502 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:40:10,503 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1199112683] [2020-10-22 02:40:10,503 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [810142850] [2020-10-22 02:40:10,503 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 [2020-10-22 02:40:10,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:40:10,574 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-22 02:40:10,575 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-22 02:40:10,593 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:40:10,594 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-22 02:40:10,594 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 4 [2020-10-22 02:40:10,594 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2050234256] [2020-10-22 02:40:10,594 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:40:10,596 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:40:10,599 INFO L252 McrAutomatonBuilder]: Finished intersection with 33 states and 50 transitions. [2020-10-22 02:40:10,599 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:40:10,736 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 2 new interpolants: [184755#(< ULTIMATE.start_main_~i~0 10000), 184756#(< ULTIMATE.start_main_~i~0 9999)] [2020-10-22 02:40:10,736 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-22 02:40:10,736 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:40:10,737 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-22 02:40:10,737 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2020-10-22 02:40:10,737 INFO L87 Difference]: Start difference. First operand 8617 states and 24318 transitions. Second operand 6 states. [2020-10-22 02:40:10,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:40:10,786 INFO L93 Difference]: Finished difference Result 6273 states and 17891 transitions. [2020-10-22 02:40:10,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-22 02:40:10,787 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-10-22 02:40:10,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:40:10,803 INFO L225 Difference]: With dead ends: 6273 [2020-10-22 02:40:10,803 INFO L226 Difference]: Without dead ends: 6273 [2020-10-22 02:40:10,804 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 25 SyntacticMatches, 4 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2020-10-22 02:40:10,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6273 states. [2020-10-22 02:40:11,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6273 to 6111. [2020-10-22 02:40:11,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6111 states. [2020-10-22 02:40:11,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6111 states to 6111 states and 17459 transitions. [2020-10-22 02:40:11,685 INFO L78 Accepts]: Start accepts. Automaton has 6111 states and 17459 transitions. Word has length 14 [2020-10-22 02:40:11,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:40:11,686 INFO L481 AbstractCegarLoop]: Abstraction has 6111 states and 17459 transitions. [2020-10-22 02:40:11,686 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-22 02:40:11,686 INFO L276 IsEmpty]: Start isEmpty. Operand 6111 states and 17459 transitions. [2020-10-22 02:40:11,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-22 02:40:11,689 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:40:11,689 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1] [2020-10-22 02:40:11,902 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-22 02:40:11,903 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:40:11,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:40:11,903 INFO L82 PathProgramCache]: Analyzing trace with hash 1455480140, now seen corresponding path program 1 times [2020-10-22 02:40:11,905 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:40:11,905 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440703233] [2020-10-22 02:40:11,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:40:11,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-22 02:40:11,922 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-22 02:40:11,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-22 02:40:11,936 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-22 02:40:11,943 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-22 02:40:11,944 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-22 02:40:11,944 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-22 02:40:11,945 WARN L371 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-22 02:40:11,945 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2020-10-22 02:40:11,954 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:11,954 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:11,954 WARN L313 ript$VariableManager]: TermVariabe t_funThread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:11,954 WARN L313 ript$VariableManager]: TermVariabe t_funThread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:11,954 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:11,955 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:11,955 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:11,955 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:11,955 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:11,955 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:11,955 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:11,956 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:11,956 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:11,956 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:11,956 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:11,956 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:11,956 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:11,956 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:11,957 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:11,957 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:11,957 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:11,957 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:11,957 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:11,958 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:11,958 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:11,958 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:11,958 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:11,958 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:11,958 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:11,959 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:11,959 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:11,959 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:11,959 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:11,959 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:11,959 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:11,960 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:11,960 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:11,960 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:11,960 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:11,960 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:11,961 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:11,961 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:11,961 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:11,961 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:11,961 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:11,962 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:11,962 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:11,962 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:11,962 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:11,962 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:11,962 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:11,963 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:11,963 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:11,963 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:11,963 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:11,963 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:11,963 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:11,964 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:11,964 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:11,964 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:11,964 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:11,964 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:11,964 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:11,965 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:11,965 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:11,965 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:11,965 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:11,965 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:11,965 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:11,966 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:11,966 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:11,966 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:11,966 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:11,966 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:11,967 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:11,967 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:11,967 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:11,967 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:11,967 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:11,967 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:11,968 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:11,969 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:11,969 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:11,969 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:11,969 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:11,970 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:11,970 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:11,970 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:11,970 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:11,970 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:11,971 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:11,971 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:11,972 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:11,972 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:11,972 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:11,972 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:11,972 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:11,972 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:11,972 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:11,974 WARN L313 ript$VariableManager]: TermVariabe t_funThread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:11,974 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:11,974 WARN L313 ript$VariableManager]: TermVariabe t_funThread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:11,974 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:11,974 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:11,974 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:11,975 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:11,975 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:11,975 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:40:11,978 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2020-10-22 02:40:11,979 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-10-22 02:40:11,979 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-22 02:40:11,979 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-22 02:40:11,979 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-22 02:40:11,979 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-10-22 02:40:11,979 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-22 02:40:11,979 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-22 02:40:11,979 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-22 02:40:11,980 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-22 02:40:11,982 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-22 02:40:11,982 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 164 places, 189 transitions, 422 flow [2020-10-22 02:40:11,982 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 164 places, 189 transitions, 422 flow [2020-10-22 02:40:11,982 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 164 places, 189 transitions, 422 flow [2020-10-22 02:40:12,053 INFO L129 PetriNetUnfolder]: 86/528 cut-off events. [2020-10-22 02:40:12,054 INFO L130 PetriNetUnfolder]: For 48/48 co-relation queries the response was YES. [2020-10-22 02:40:12,061 INFO L80 FinitePrefix]: Finished finitePrefix Result has 583 conditions, 528 events. 86/528 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 2132 event pairs, 6 based on Foata normal form. 0/437 useless extension candidates. Maximal degree in co-relation 364. Up to 32 conditions per place. [2020-10-22 02:40:12,091 INFO L116 LiptonReduction]: Number of co-enabled transitions 20496 [2020-10-22 02:40:13,661 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 70 [2020-10-22 02:40:14,105 WARN L193 SmtUtils]: Spent 350.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 108 [2020-10-22 02:40:14,296 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-10-22 02:40:14,472 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-22 02:40:14,638 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-22 02:40:14,656 INFO L131 LiptonReduction]: Checked pairs total: 58177 [2020-10-22 02:40:14,656 INFO L133 LiptonReduction]: Total number of compositions: 120 [2020-10-22 02:40:14,656 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 74 places, 97 transitions, 238 flow Received shutdown request... [2020-10-22 02:44:17,401 WARN L546 AbstractCegarLoop]: Verification canceled [2020-10-22 02:44:17,403 WARN L235 ceAbstractionStarter]: Timeout [2020-10-22 02:44:17,404 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 02:44:17 BasicIcfg [2020-10-22 02:44:17,404 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-22 02:44:17,408 INFO L168 Benchmark]: Toolchain (without parser) took 264979.06 ms. Allocated memory was 140.0 MB in the beginning and 3.0 GB in the end (delta: 2.8 GB). Free memory was 101.8 MB in the beginning and 1.7 GB in the end (delta: -1.6 GB). Peak memory consumption was 2.9 GB. Max. memory is 7.1 GB. [2020-10-22 02:44:17,409 INFO L168 Benchmark]: CDTParser took 3.16 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-10-22 02:44:17,414 INFO L168 Benchmark]: CACSL2BoogieTranslator took 741.40 ms. Allocated memory was 140.0 MB in the beginning and 203.4 MB in the end (delta: 63.4 MB). Free memory was 101.0 MB in the beginning and 158.8 MB in the end (delta: -57.8 MB). Peak memory consumption was 22.7 MB. Max. memory is 7.1 GB. [2020-10-22 02:44:17,414 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.41 ms. Allocated memory is still 203.4 MB. Free memory was 158.8 MB in the beginning and 156.1 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. [2020-10-22 02:44:17,415 INFO L168 Benchmark]: Boogie Preprocessor took 40.23 ms. Allocated memory is still 203.4 MB. Free memory was 156.1 MB in the beginning and 154.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2020-10-22 02:44:17,416 INFO L168 Benchmark]: RCFGBuilder took 521.04 ms. Allocated memory is still 203.4 MB. Free memory was 154.7 MB in the beginning and 128.1 MB in the end (delta: 26.6 MB). Peak memory consumption was 26.6 MB. Max. memory is 7.1 GB. [2020-10-22 02:44:17,417 INFO L168 Benchmark]: TraceAbstraction took 263616.96 ms. Allocated memory was 203.4 MB in the beginning and 3.0 GB in the end (delta: 2.8 GB). Free memory was 127.5 MB in the beginning and 1.7 GB in the end (delta: -1.6 GB). Peak memory consumption was 2.9 GB. Max. memory is 7.1 GB. [2020-10-22 02:44:17,422 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 3.16 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 741.40 ms. Allocated memory was 140.0 MB in the beginning and 203.4 MB in the end (delta: 63.4 MB). Free memory was 101.0 MB in the beginning and 158.8 MB in the end (delta: -57.8 MB). Peak memory consumption was 22.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 48.41 ms. Allocated memory is still 203.4 MB. Free memory was 158.8 MB in the beginning and 156.1 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 40.23 ms. Allocated memory is still 203.4 MB. Free memory was 156.1 MB in the beginning and 154.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 521.04 ms. Allocated memory is still 203.4 MB. Free memory was 154.7 MB in the beginning and 128.1 MB in the end (delta: 26.6 MB). Peak memory consumption was 26.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 263616.96 ms. Allocated memory was 203.4 MB in the beginning and 3.0 GB in the end (delta: 2.8 GB). Free memory was 127.5 MB in the beginning and 1.7 GB in the end (delta: -1.6 GB). Peak memory consumption was 2.9 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 1212 VarBasedMoverChecksPositive, 28 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 86 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 2.7s, 89 PlacesBefore, 27 PlacesAfterwards, 99 TransitionsBefore, 34 TransitionsAfterwards, 2296 CoEnabledTransitionPairs, 6 FixpointIterations, 26 TrivialSequentialCompositions, 36 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 16 ConcurrentYvCompositions, 3 ChoiceCompositions, 81 TotalNumberOfCompositions, 3930 MoverChecksTotal - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 3230 VarBasedMoverChecksPositive, 49 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 214 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 2.2s, 114 PlacesBefore, 45 PlacesAfterwards, 129 TransitionsBefore, 58 TransitionsAfterwards, 6776 CoEnabledTransitionPairs, 5 FixpointIterations, 23 TrivialSequentialCompositions, 47 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 20 ConcurrentYvCompositions, 2 ChoiceCompositions, 92 TotalNumberOfCompositions, 14746 MoverChecksTotal - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 5845 VarBasedMoverChecksPositive, 59 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 490 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 2.2s, 139 PlacesBefore, 59 PlacesAfterwards, 159 TransitionsBefore, 76 TransitionsAfterwards, 12768 CoEnabledTransitionPairs, 5 FixpointIterations, 23 TrivialSequentialCompositions, 56 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 25 ConcurrentYvCompositions, 3 ChoiceCompositions, 107 TotalNumberOfCompositions, 28538 MoverChecksTotal - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 9192 VarBasedMoverChecksPositive, 87 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 843 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 2.6s, 164 PlacesBefore, 74 PlacesAfterwards, 189 TransitionsBefore, 97 TransitionsAfterwards, 20496 CoEnabledTransitionPairs, 6 FixpointIterations, 23 TrivialSequentialCompositions, 67 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 28 ConcurrentYvCompositions, 2 ChoiceCompositions, 120 TotalNumberOfCompositions, 58177 MoverChecksTotal - TimeoutResultAtElement [Line: 683]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 683). Cancelled while BasicCegarLoop was constructing initial abstraction,while PetriNet2FiniteAutomaton was constructing automaton for Petri net that has has 74 places, 97 transitions, 238 flow. Already constructed 326832 states. Currently 24901 states in worklist.. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 86 locations, 1 error locations. Started 4 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 263.3s, OverallIterations: 10, TraceHistogramMax: 4, AutomataDifference: 1.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 255.9s, HoareTripleCheckerStatistics: 274 SDtfs, 290 SDslu, 298 SDs, 0 SdLazy, 94 SolverSat, 21 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 92 GetRequests, 70 SyntacticMatches, 4 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=28106occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 3.2s AutomataMinimizationTime, 7 MinimizatonAttempts, 328 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 130 NumberOfCodeBlocks, 130 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 87 ConstructedInterpolants, 0 QuantifiedInterpolants, 2099 SizeOfPredicates, 3 NumberOfNonLiveVariables, 359 ConjunctsInSsa, 11 ConjunctsInUnsatCore, 11 InterpolantComputations, 6 PerfectInterpolantSequences, 3/8 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown