/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-WP.epf -i ../../../trunk/examples/svcomp/goblint-regression/28-race_reach_06-cond_racing1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-1d1d2b5 [2020-10-22 00:55:37,068 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-22 00:55:37,071 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-22 00:55:37,094 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-22 00:55:37,094 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-22 00:55:37,095 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-22 00:55:37,097 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-22 00:55:37,098 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-22 00:55:37,100 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-22 00:55:37,101 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-22 00:55:37,102 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-22 00:55:37,103 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-22 00:55:37,103 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-22 00:55:37,104 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-22 00:55:37,105 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-22 00:55:37,106 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-22 00:55:37,107 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-22 00:55:37,108 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-22 00:55:37,109 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-22 00:55:37,111 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-22 00:55:37,112 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-22 00:55:37,113 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-22 00:55:37,114 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-22 00:55:37,115 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-22 00:55:37,118 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-22 00:55:37,118 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-22 00:55:37,118 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-22 00:55:37,119 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-22 00:55:37,119 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-22 00:55:37,120 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-22 00:55:37,120 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-22 00:55:37,121 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-22 00:55:37,122 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-22 00:55:37,123 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-22 00:55:37,124 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-22 00:55:37,124 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-22 00:55:37,124 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-22 00:55:37,125 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-22 00:55:37,125 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-22 00:55:37,126 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-22 00:55:37,126 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-22 00:55:37,127 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-WP.epf [2020-10-22 00:55:37,151 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-22 00:55:37,151 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-22 00:55:37,153 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-22 00:55:37,153 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-22 00:55:37,153 INFO L138 SettingsManager]: * Use SBE=true [2020-10-22 00:55:37,153 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-22 00:55:37,153 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-22 00:55:37,154 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-22 00:55:37,154 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-22 00:55:37,154 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-22 00:55:37,154 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-22 00:55:37,154 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-22 00:55:37,154 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-22 00:55:37,155 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-22 00:55:37,155 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-22 00:55:37,155 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-22 00:55:37,155 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-22 00:55:37,155 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-22 00:55:37,156 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-22 00:55:37,156 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-22 00:55:37,156 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-22 00:55:37,156 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-22 00:55:37,156 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-22 00:55:37,157 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-22 00:55:37,157 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-22 00:55:37,157 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-22 00:55:37,157 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-22 00:55:37,157 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-10-22 00:55:37,158 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-22 00:55:37,158 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-22 00:55:37,158 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-10-22 00:55:37,467 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-22 00:55:37,479 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-22 00:55:37,483 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-22 00:55:37,484 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-22 00:55:37,486 INFO L275 PluginConnector]: CDTParser initialized [2020-10-22 00:55:37,487 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/28-race_reach_06-cond_racing1.i [2020-10-22 00:55:37,548 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3e9cec174/fd6903f038084f40ba5b5c62e35b76f0/FLAG06198ac9a [2020-10-22 00:55:38,055 INFO L306 CDTParser]: Found 1 translation units. [2020-10-22 00:55:38,055 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_06-cond_racing1.i [2020-10-22 00:55:38,073 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3e9cec174/fd6903f038084f40ba5b5c62e35b76f0/FLAG06198ac9a [2020-10-22 00:55:38,364 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3e9cec174/fd6903f038084f40ba5b5c62e35b76f0 [2020-10-22 00:55:38,373 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-22 00:55:38,380 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-22 00:55:38,381 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-22 00:55:38,381 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-22 00:55:38,384 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-22 00:55:38,385 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 12:55:38" (1/1) ... [2020-10-22 00:55:38,388 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f25ea6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:55:38, skipping insertion in model container [2020-10-22 00:55:38,389 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 12:55:38" (1/1) ... [2020-10-22 00:55:38,396 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-22 00:55:38,441 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-22 00:55:39,034 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-22 00:55:39,052 INFO L203 MainTranslator]: Completed pre-run [2020-10-22 00:55:39,101 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-22 00:55:39,283 INFO L208 MainTranslator]: Completed translation [2020-10-22 00:55:39,284 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:55:39 WrapperNode [2020-10-22 00:55:39,284 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-22 00:55:39,285 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-22 00:55:39,285 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-22 00:55:39,285 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-22 00:55:39,295 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:55:39" (1/1) ... [2020-10-22 00:55:39,322 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:55:39" (1/1) ... [2020-10-22 00:55:39,375 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-22 00:55:39,376 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-22 00:55:39,376 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-22 00:55:39,376 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-22 00:55:39,387 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:55:39" (1/1) ... [2020-10-22 00:55:39,387 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:55:39" (1/1) ... [2020-10-22 00:55:39,406 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:55:39" (1/1) ... [2020-10-22 00:55:39,407 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:55:39" (1/1) ... [2020-10-22 00:55:39,424 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:55:39" (1/1) ... [2020-10-22 00:55:39,434 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:55:39" (1/1) ... [2020-10-22 00:55:39,440 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:55:39" (1/1) ... [2020-10-22 00:55:39,444 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-22 00:55:39,445 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-22 00:55:39,445 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-22 00:55:39,445 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-22 00:55:39,446 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:55:39" (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 00:55:39,529 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-22 00:55:39,529 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-22 00:55:39,529 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-22 00:55:39,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-22 00:55:39,530 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2020-10-22 00:55:39,530 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2020-10-22 00:55:39,530 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2020-10-22 00:55:39,531 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-22 00:55:39,531 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-22 00:55:39,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-22 00:55:39,533 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 00:55:39,981 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-22 00:55:39,981 INFO L298 CfgBuilder]: Removed 18 assume(true) statements. [2020-10-22 00:55:39,983 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 12:55:39 BoogieIcfgContainer [2020-10-22 00:55:39,984 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-22 00:55:39,985 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-22 00:55:39,986 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-22 00:55:39,990 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-22 00:55:39,990 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 12:55:38" (1/3) ... [2020-10-22 00:55:39,991 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@178603e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 12:55:39, skipping insertion in model container [2020-10-22 00:55:39,991 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 12:55:39" (2/3) ... [2020-10-22 00:55:39,992 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@178603e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 12:55:39, skipping insertion in model container [2020-10-22 00:55:39,992 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 12:55:39" (3/3) ... [2020-10-22 00:55:39,994 INFO L111 eAbstractionObserver]: Analyzing ICFG 28-race_reach_06-cond_racing1.i [2020-10-22 00:55:40,008 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-22 00:55:40,008 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-22 00:55:40,017 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-22 00:55:40,018 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-22 00:55:40,047 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:55:40,047 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:55:40,048 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:55:40,048 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:55:40,048 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:55:40,049 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:55:40,049 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:55:40,049 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:55:40,050 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:55:40,050 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:55:40,050 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:55:40,051 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:55:40,052 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:55:40,052 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:55:40,052 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:55:40,053 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:55:40,053 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:55:40,053 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:55:40,057 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:55:40,058 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:55:40,058 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:55:40,058 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:55:40,058 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:55:40,059 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:55:40,059 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:55:40,059 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:55:40,059 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:55:40,072 INFO L149 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2020-10-22 00:55:40,088 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-10-22 00:55:40,108 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-22 00:55:40,108 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-22 00:55:40,122 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-22 00:55:40,122 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-10-22 00:55:40,123 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-22 00:55:40,123 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-22 00:55:40,123 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-22 00:55:40,123 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-22 00:55:40,139 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-22 00:55:40,140 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 106 places, 119 transitions, 246 flow [2020-10-22 00:55:40,143 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 106 places, 119 transitions, 246 flow [2020-10-22 00:55:40,145 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 106 places, 119 transitions, 246 flow [2020-10-22 00:55:40,217 INFO L129 PetriNetUnfolder]: 25/163 cut-off events. [2020-10-22 00:55:40,217 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2020-10-22 00:55:40,224 INFO L80 FinitePrefix]: Finished finitePrefix Result has 169 conditions, 163 events. 25/163 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 398 event pairs, 0 based on Foata normal form. 0/133 useless extension candidates. Maximal degree in co-relation 80. Up to 6 conditions per place. [2020-10-22 00:55:40,229 INFO L116 LiptonReduction]: Number of co-enabled transitions 2744 [2020-10-22 00:55:41,821 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2020-10-22 00:55:41,935 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 69 [2020-10-22 00:55:42,371 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2020-10-22 00:55:42,505 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2020-10-22 00:55:43,149 WARN L193 SmtUtils]: Spent 394.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 101 [2020-10-22 00:55:43,330 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-10-22 00:55:43,459 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-22 00:55:43,569 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2020-10-22 00:55:45,030 WARN L193 SmtUtils]: Spent 1.45 s on a formula simplification. DAG size of input: 172 DAG size of output: 166 [2020-10-22 00:55:45,718 WARN L193 SmtUtils]: Spent 683.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2020-10-22 00:55:45,730 INFO L131 LiptonReduction]: Checked pairs total: 4458 [2020-10-22 00:55:45,730 INFO L133 LiptonReduction]: Total number of compositions: 107 [2020-10-22 00:55:45,737 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 27 places, 35 transitions, 78 flow [2020-10-22 00:55:45,753 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 143 states. [2020-10-22 00:55:45,755 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states. [2020-10-22 00:55:45,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-10-22 00:55:45,762 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 00:55:45,763 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-10-22 00:55:45,763 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 00:55:45,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 00:55:45,769 INFO L82 PathProgramCache]: Analyzing trace with hash 14554876, now seen corresponding path program 1 times [2020-10-22 00:55:45,799 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 00:55:45,799 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844069788] [2020-10-22 00:55:45,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 00:55:45,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 00:55:46,017 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 00:55:46,017 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [844069788] [2020-10-22 00:55:46,019 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 00:55:46,019 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-22 00:55:46,020 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1970955752] [2020-10-22 00:55:46,021 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 00:55:46,024 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 00:55:46,037 INFO L252 McrAutomatonBuilder]: Finished intersection with 5 states and 4 transitions. [2020-10-22 00:55:46,038 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 00:55:46,045 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 00:55:46,046 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-22 00:55:46,046 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 00:55:46,063 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-22 00:55:46,064 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 00:55:46,066 INFO L87 Difference]: Start difference. First operand 143 states. Second operand 3 states. [2020-10-22 00:55:46,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 00:55:46,117 INFO L93 Difference]: Finished difference Result 137 states and 254 transitions. [2020-10-22 00:55:46,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-22 00:55:46,119 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-10-22 00:55:46,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 00:55:46,129 INFO L225 Difference]: With dead ends: 137 [2020-10-22 00:55:46,129 INFO L226 Difference]: Without dead ends: 73 [2020-10-22 00:55:46,131 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 00:55:46,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2020-10-22 00:55:46,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2020-10-22 00:55:46,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2020-10-22 00:55:46,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 126 transitions. [2020-10-22 00:55:46,188 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 126 transitions. Word has length 4 [2020-10-22 00:55:46,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 00:55:46,189 INFO L481 AbstractCegarLoop]: Abstraction has 73 states and 126 transitions. [2020-10-22 00:55:46,189 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-22 00:55:46,189 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 126 transitions. [2020-10-22 00:55:46,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-10-22 00:55:46,190 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 00:55:46,193 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2020-10-22 00:55:46,194 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-22 00:55:46,194 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 00:55:46,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 00:55:46,200 INFO L82 PathProgramCache]: Analyzing trace with hash 1018925527, now seen corresponding path program 1 times [2020-10-22 00:55:46,202 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 00:55:46,202 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545123791] [2020-10-22 00:55:46,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 00:55:46,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-22 00:55:46,294 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-22 00:55:46,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-22 00:55:46,347 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-22 00:55:46,372 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-22 00:55:46,372 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-22 00:55:46,374 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-22 00:55:46,375 WARN L371 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-22 00:55:46,376 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2020-10-22 00:55:46,384 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:55:46,384 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:55:46,385 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:55:46,385 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:55:46,385 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:55:46,385 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:55:46,386 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:55:46,386 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:55:46,386 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:55:46,386 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:55:46,387 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:55:46,387 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:55:46,387 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:55:46,387 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:55:46,387 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:55:46,388 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:55:46,388 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:55:46,388 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:55:46,388 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:55:46,389 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:55:46,389 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:55:46,389 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:55:46,389 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:55:46,389 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:55:46,390 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:55:46,390 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:55:46,390 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:55:46,390 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:55:46,390 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:55:46,391 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:55:46,391 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:55:46,391 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:55:46,391 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:55:46,391 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:55:46,392 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:55:46,392 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:55:46,392 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:55:46,393 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:55:46,393 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:55:46,393 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:55:46,393 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:55:46,393 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:55:46,394 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:55:46,394 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:55:46,394 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:55:46,396 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:55:46,396 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:55:46,396 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:55:46,396 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:55:46,397 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:55:46,397 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:55:46,397 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:55:46,397 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:55:46,397 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:55:46,400 INFO L149 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2020-10-22 00:55:46,400 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-10-22 00:55:46,401 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-22 00:55:46,401 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-22 00:55:46,401 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-22 00:55:46,401 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-10-22 00:55:46,401 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-22 00:55:46,401 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-22 00:55:46,401 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-22 00:55:46,402 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-22 00:55:46,404 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-22 00:55:46,404 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 131 places, 149 transitions, 316 flow [2020-10-22 00:55:46,405 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 131 places, 149 transitions, 316 flow [2020-10-22 00:55:46,405 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 131 places, 149 transitions, 316 flow [2020-10-22 00:55:46,461 INFO L129 PetriNetUnfolder]: 43/260 cut-off events. [2020-10-22 00:55:46,462 INFO L130 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2020-10-22 00:55:46,465 INFO L80 FinitePrefix]: Finished finitePrefix Result has 274 conditions, 260 events. 43/260 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 811 event pairs, 0 based on Foata normal form. 0/210 useless extension candidates. Maximal degree in co-relation 165. Up to 9 conditions per place. [2020-10-22 00:55:46,476 INFO L116 LiptonReduction]: Number of co-enabled transitions 7672 [2020-10-22 00:55:48,309 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 55 [2020-10-22 00:55:48,993 WARN L193 SmtUtils]: Spent 394.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 97 [2020-10-22 00:55:49,174 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-10-22 00:55:49,329 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-10-22 00:55:49,438 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-10-22 00:55:50,848 WARN L193 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 172 DAG size of output: 166 [2020-10-22 00:55:51,608 WARN L193 SmtUtils]: Spent 755.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2020-10-22 00:55:51,632 INFO L131 LiptonReduction]: Checked pairs total: 18579 [2020-10-22 00:55:51,633 INFO L133 LiptonReduction]: Total number of compositions: 117 [2020-10-22 00:55:51,633 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 47 places, 61 transitions, 140 flow [2020-10-22 00:55:51,768 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 2584 states. [2020-10-22 00:55:51,769 INFO L276 IsEmpty]: Start isEmpty. Operand 2584 states. [2020-10-22 00:55:51,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-10-22 00:55:51,770 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 00:55:51,770 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-10-22 00:55:51,770 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 00:55:51,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 00:55:51,771 INFO L82 PathProgramCache]: Analyzing trace with hash 23669903, now seen corresponding path program 1 times [2020-10-22 00:55:51,772 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 00:55:51,773 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932555191] [2020-10-22 00:55:51,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 00:55:51,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 00:55:51,833 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 00:55:51,834 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [932555191] [2020-10-22 00:55:51,834 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 00:55:51,834 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-22 00:55:51,835 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1784524702] [2020-10-22 00:55:51,835 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 00:55:51,836 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 00:55:51,837 INFO L252 McrAutomatonBuilder]: Finished intersection with 5 states and 4 transitions. [2020-10-22 00:55:51,838 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 00:55:51,838 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 00:55:51,839 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-22 00:55:51,839 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 00:55:51,839 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-22 00:55:51,840 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 00:55:51,841 INFO L87 Difference]: Start difference. First operand 2584 states. Second operand 3 states. [2020-10-22 00:55:51,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 00:55:51,959 INFO L93 Difference]: Finished difference Result 2420 states and 6636 transitions. [2020-10-22 00:55:51,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-22 00:55:51,960 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-10-22 00:55:51,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 00:55:51,979 INFO L225 Difference]: With dead ends: 2420 [2020-10-22 00:55:51,982 INFO L226 Difference]: Without dead ends: 1239 [2020-10-22 00:55:51,983 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 00:55:52,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1239 states. [2020-10-22 00:55:52,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1239 to 1239. [2020-10-22 00:55:52,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1239 states. [2020-10-22 00:55:52,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1239 states to 1239 states and 3284 transitions. [2020-10-22 00:55:52,082 INFO L78 Accepts]: Start accepts. Automaton has 1239 states and 3284 transitions. Word has length 4 [2020-10-22 00:55:52,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 00:55:52,083 INFO L481 AbstractCegarLoop]: Abstraction has 1239 states and 3284 transitions. [2020-10-22 00:55:52,083 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-22 00:55:52,083 INFO L276 IsEmpty]: Start isEmpty. Operand 1239 states and 3284 transitions. [2020-10-22 00:55:52,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-22 00:55:52,084 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 00:55:52,084 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 00:55:52,084 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-22 00:55:52,084 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 00:55:52,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 00:55:52,085 INFO L82 PathProgramCache]: Analyzing trace with hash 1601372496, now seen corresponding path program 1 times [2020-10-22 00:55:52,087 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 00:55:52,087 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923149138] [2020-10-22 00:55:52,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 00:55:52,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 00:55:52,176 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 00:55:52,176 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1923149138] [2020-10-22 00:55:52,177 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [917678414] [2020-10-22 00:55:52,177 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 00:55:52,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 00:55:52,246 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-22 00:55:52,248 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-22 00:55:52,259 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 00:55:52,260 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-22 00:55:52,260 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [3] total 4 [2020-10-22 00:55:52,260 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [287081512] [2020-10-22 00:55:52,261 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 00:55:52,262 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 00:55:52,263 INFO L252 McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions. [2020-10-22 00:55:52,263 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 00:55:52,263 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 00:55:52,264 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-22 00:55:52,264 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 00:55:52,264 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-22 00:55:52,264 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-22 00:55:52,265 INFO L87 Difference]: Start difference. First operand 1239 states and 3284 transitions. Second operand 3 states. [2020-10-22 00:55:52,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 00:55:52,302 INFO L93 Difference]: Finished difference Result 1209 states and 3199 transitions. [2020-10-22 00:55:52,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-22 00:55:52,303 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-10-22 00:55:52,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 00:55:52,311 INFO L225 Difference]: With dead ends: 1209 [2020-10-22 00:55:52,312 INFO L226 Difference]: Without dead ends: 1209 [2020-10-22 00:55:52,313 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 00:55:52,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1209 states. [2020-10-22 00:55:52,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1209 to 1209. [2020-10-22 00:55:52,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1209 states. [2020-10-22 00:55:52,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1209 states to 1209 states and 3199 transitions. [2020-10-22 00:55:52,380 INFO L78 Accepts]: Start accepts. Automaton has 1209 states and 3199 transitions. Word has length 8 [2020-10-22 00:55:52,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 00:55:52,381 INFO L481 AbstractCegarLoop]: Abstraction has 1209 states and 3199 transitions. [2020-10-22 00:55:52,381 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-22 00:55:52,381 INFO L276 IsEmpty]: Start isEmpty. Operand 1209 states and 3199 transitions. [2020-10-22 00:55:52,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-22 00:55:52,382 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 00:55:52,382 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2020-10-22 00:55:52,595 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-22 00:55:52,596 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 00:55:52,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 00:55:52,597 INFO L82 PathProgramCache]: Analyzing trace with hash 455027975, now seen corresponding path program 1 times [2020-10-22 00:55:52,599 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 00:55:52,599 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121489800] [2020-10-22 00:55:52,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 00:55:52,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-22 00:55:52,621 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-22 00:55:52,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-22 00:55:52,661 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-22 00:55:52,680 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-22 00:55:52,680 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-22 00:55:52,681 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-22 00:55:52,681 WARN L371 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-22 00:55:52,682 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2020-10-22 00:55:52,695 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:55:52,695 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:55:52,695 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:55:52,695 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:55:52,695 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:55:52,696 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:55:52,696 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:55:52,696 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:55:52,696 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:55:52,696 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:55:52,696 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:55:52,697 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:55:52,697 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:55:52,697 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:55:52,697 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:55:52,697 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:55:52,697 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:55:52,698 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:55:52,698 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:55:52,699 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:55:52,699 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:55:52,699 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:55:52,699 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:55:52,699 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:55:52,699 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:55:52,700 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:55:52,700 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:55:52,700 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:55:52,700 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:55:52,700 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:55:52,700 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:55:52,700 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:55:52,701 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:55:52,701 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:55:52,701 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:55:52,701 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:55:52,701 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:55:52,702 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:55:52,702 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:55:52,702 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:55:52,702 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:55:52,702 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:55:52,702 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:55:52,703 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:55:52,704 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:55:52,704 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:55:52,705 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:55:52,705 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:55:52,706 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:55:52,706 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:55:52,706 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:55:52,706 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:55:52,706 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:55:52,706 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:55:52,707 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:55:52,707 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:55:52,707 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:55:52,708 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:55:52,708 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:55:52,708 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:55:52,708 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:55:52,708 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:55:52,708 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:55:52,709 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:55:52,710 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:55:52,710 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:55:52,710 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:55:52,710 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:55:52,710 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:55:52,710 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:55:52,710 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:55:52,710 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:55:52,711 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:55:52,711 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:55:52,711 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:55:52,712 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:55:52,712 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:55:52,712 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:55:52,712 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:55:52,712 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:55:52,712 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:55:52,718 INFO L149 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2020-10-22 00:55:52,719 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-10-22 00:55:52,719 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-22 00:55:52,719 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-22 00:55:52,719 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-22 00:55:52,719 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-10-22 00:55:52,719 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-22 00:55:52,719 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-22 00:55:52,719 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-22 00:55:52,720 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-22 00:55:52,722 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-22 00:55:52,722 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 156 places, 179 transitions, 388 flow [2020-10-22 00:55:52,722 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 156 places, 179 transitions, 388 flow [2020-10-22 00:55:52,722 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 156 places, 179 transitions, 388 flow [2020-10-22 00:55:52,790 INFO L129 PetriNetUnfolder]: 66/388 cut-off events. [2020-10-22 00:55:52,791 INFO L130 PetriNetUnfolder]: For 19/19 co-relation queries the response was YES. [2020-10-22 00:55:52,797 INFO L80 FinitePrefix]: Finished finitePrefix Result has 416 conditions, 388 events. 66/388 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1398 event pairs, 1 based on Foata normal form. 0/314 useless extension candidates. Maximal degree in co-relation 268. Up to 16 conditions per place. [2020-10-22 00:55:52,818 INFO L116 LiptonReduction]: Number of co-enabled transitions 14112 [2020-10-22 00:55:54,535 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-10-22 00:55:55,275 WARN L193 SmtUtils]: Spent 356.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 82 [2020-10-22 00:55:55,421 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2020-10-22 00:55:56,309 WARN L193 SmtUtils]: Spent 758.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 126 [2020-10-22 00:55:56,646 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-22 00:55:58,173 WARN L193 SmtUtils]: Spent 1.52 s on a formula simplification. DAG size of input: 170 DAG size of output: 166 [2020-10-22 00:55:58,948 WARN L193 SmtUtils]: Spent 771.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2020-10-22 00:55:58,964 INFO L131 LiptonReduction]: Checked pairs total: 35638 [2020-10-22 00:55:58,964 INFO L133 LiptonReduction]: Total number of compositions: 134 [2020-10-22 00:55:58,965 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 59 places, 76 transitions, 182 flow [2020-10-22 00:56:01,344 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 28106 states. [2020-10-22 00:56:01,345 INFO L276 IsEmpty]: Start isEmpty. Operand 28106 states. [2020-10-22 00:56:01,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-10-22 00:56:01,345 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 00:56:01,345 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-10-22 00:56:01,345 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 00:56:01,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 00:56:01,346 INFO L82 PathProgramCache]: Analyzing trace with hash 34214907, now seen corresponding path program 1 times [2020-10-22 00:56:01,347 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 00:56:01,347 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240561409] [2020-10-22 00:56:01,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 00:56:01,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 00:56:01,390 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 00:56:01,390 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [240561409] [2020-10-22 00:56:01,390 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 00:56:01,390 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-22 00:56:01,391 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1319369080] [2020-10-22 00:56:01,391 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 00:56:01,391 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 00:56:01,392 INFO L252 McrAutomatonBuilder]: Finished intersection with 5 states and 4 transitions. [2020-10-22 00:56:01,392 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 00:56:01,392 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 00:56:01,392 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-22 00:56:01,393 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 00:56:01,393 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-22 00:56:01,396 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 00:56:01,396 INFO L87 Difference]: Start difference. First operand 28106 states. Second operand 3 states. [2020-10-22 00:56:02,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 00:56:02,656 INFO L93 Difference]: Finished difference Result 28100 states and 101853 transitions. [2020-10-22 00:56:02,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-22 00:56:02,658 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-10-22 00:56:02,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 00:56:02,800 INFO L225 Difference]: With dead ends: 28100 [2020-10-22 00:56:02,801 INFO L226 Difference]: Without dead ends: 14919 [2020-10-22 00:56:02,801 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 00:56:03,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14919 states. [2020-10-22 00:56:03,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14919 to 14919. [2020-10-22 00:56:03,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14919 states. [2020-10-22 00:56:03,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14919 states to 14919 states and 53132 transitions. [2020-10-22 00:56:03,806 INFO L78 Accepts]: Start accepts. Automaton has 14919 states and 53132 transitions. Word has length 4 [2020-10-22 00:56:03,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 00:56:03,806 INFO L481 AbstractCegarLoop]: Abstraction has 14919 states and 53132 transitions. [2020-10-22 00:56:03,806 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-22 00:56:03,806 INFO L276 IsEmpty]: Start isEmpty. Operand 14919 states and 53132 transitions. [2020-10-22 00:56:03,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-22 00:56:03,808 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 00:56:03,808 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 00:56:03,808 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-22 00:56:03,809 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 00:56:03,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 00:56:03,809 INFO L82 PathProgramCache]: Analyzing trace with hash -1152141003, now seen corresponding path program 1 times [2020-10-22 00:56:03,810 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 00:56:03,811 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873699400] [2020-10-22 00:56:03,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 00:56:03,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 00:56:03,883 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 00:56:03,883 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1873699400] [2020-10-22 00:56:03,883 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [287196522] [2020-10-22 00:56:03,884 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 00:56:03,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 00:56:03,970 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-22 00:56:03,972 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-22 00:56:03,979 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 00:56:03,980 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-22 00:56:03,980 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [3] total 4 [2020-10-22 00:56:03,980 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [24205684] [2020-10-22 00:56:03,980 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 00:56:03,981 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 00:56:03,983 INFO L252 McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions. [2020-10-22 00:56:03,985 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 00:56:03,986 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 00:56:03,986 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-22 00:56:03,986 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 00:56:03,987 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-22 00:56:03,987 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-22 00:56:03,987 INFO L87 Difference]: Start difference. First operand 14919 states and 53132 transitions. Second operand 3 states. [2020-10-22 00:56:04,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 00:56:04,315 INFO L93 Difference]: Finished difference Result 14764 states and 52547 transitions. [2020-10-22 00:56:04,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-22 00:56:04,316 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-10-22 00:56:04,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 00:56:04,389 INFO L225 Difference]: With dead ends: 14764 [2020-10-22 00:56:04,390 INFO L226 Difference]: Without dead ends: 14764 [2020-10-22 00:56:04,390 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 00:56:04,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14764 states. [2020-10-22 00:56:05,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14764 to 14764. [2020-10-22 00:56:05,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14764 states. [2020-10-22 00:56:05,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14764 states to 14764 states and 52547 transitions. [2020-10-22 00:56:05,355 INFO L78 Accepts]: Start accepts. Automaton has 14764 states and 52547 transitions. Word has length 8 [2020-10-22 00:56:05,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 00:56:05,355 INFO L481 AbstractCegarLoop]: Abstraction has 14764 states and 52547 transitions. [2020-10-22 00:56:05,355 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-22 00:56:05,355 INFO L276 IsEmpty]: Start isEmpty. Operand 14764 states and 52547 transitions. [2020-10-22 00:56:05,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-22 00:56:05,357 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 00:56:05,357 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 00:56:05,565 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-22 00:56:05,566 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 00:56:05,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 00:56:05,566 INFO L82 PathProgramCache]: Analyzing trace with hash 111514487, now seen corresponding path program 1 times [2020-10-22 00:56:05,568 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 00:56:05,568 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133327200] [2020-10-22 00:56:05,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 00:56:05,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 00:56:05,625 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 00:56:05,626 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2133327200] [2020-10-22 00:56:05,626 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1361317756] [2020-10-22 00:56:05,627 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 00:56:05,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 00:56:05,697 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-22 00:56:05,698 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-22 00:56:05,718 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 00:56:05,718 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-22 00:56:05,719 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 4 [2020-10-22 00:56:05,719 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1045729008] [2020-10-22 00:56:05,719 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 00:56:05,720 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 00:56:05,723 INFO L252 McrAutomatonBuilder]: Finished intersection with 28 states and 41 transitions. [2020-10-22 00:56:05,723 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 00:56:05,852 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 2 new interpolants: [158672#(< ULTIMATE.start_main_~i~1 9999), 158671#(< ULTIMATE.start_main_~i~1 10000)] [2020-10-22 00:56:05,853 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-22 00:56:05,853 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 00:56:05,853 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-22 00:56:05,854 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2020-10-22 00:56:05,854 INFO L87 Difference]: Start difference. First operand 14764 states and 52547 transitions. Second operand 6 states. [2020-10-22 00:56:05,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 00:56:05,948 INFO L93 Difference]: Finished difference Result 9267 states and 32399 transitions. [2020-10-22 00:56:05,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-22 00:56:05,949 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2020-10-22 00:56:05,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 00:56:05,989 INFO L225 Difference]: With dead ends: 9267 [2020-10-22 00:56:05,989 INFO L226 Difference]: Without dead ends: 9267 [2020-10-22 00:56:05,990 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 22 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2020-10-22 00:56:06,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9267 states. [2020-10-22 00:56:06,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9267 to 9267. [2020-10-22 00:56:06,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9267 states. [2020-10-22 00:56:07,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9267 states to 9267 states and 32399 transitions. [2020-10-22 00:56:07,458 INFO L78 Accepts]: Start accepts. Automaton has 9267 states and 32399 transitions. Word has length 13 [2020-10-22 00:56:07,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 00:56:07,459 INFO L481 AbstractCegarLoop]: Abstraction has 9267 states and 32399 transitions. [2020-10-22 00:56:07,459 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-22 00:56:07,459 INFO L276 IsEmpty]: Start isEmpty. Operand 9267 states and 32399 transitions. [2020-10-22 00:56:07,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-22 00:56:07,462 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 00:56:07,462 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1] [2020-10-22 00:56:07,675 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-22 00:56:07,675 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 00:56:07,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 00:56:07,675 INFO L82 PathProgramCache]: Analyzing trace with hash 802862708, now seen corresponding path program 1 times [2020-10-22 00:56:07,677 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 00:56:07,677 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034801082] [2020-10-22 00:56:07,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 00:56:07,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-22 00:56:07,696 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-22 00:56:07,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-22 00:56:07,713 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-22 00:56:07,721 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-22 00:56:07,722 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-22 00:56:07,722 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-22 00:56:07,723 WARN L371 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-22 00:56:07,723 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2020-10-22 00:56:07,733 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:56:07,733 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:56:07,733 WARN L313 ript$VariableManager]: TermVariabe t_funThread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:56:07,733 WARN L313 ript$VariableManager]: TermVariabe t_funThread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:56:07,734 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:56:07,734 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:56:07,734 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:56:07,734 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:56:07,734 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:56:07,735 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:56:07,735 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:56:07,735 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:56:07,735 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:56:07,735 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:56:07,736 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:56:07,736 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:56:07,736 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:56:07,736 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:56:07,736 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:56:07,736 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:56:07,737 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:56:07,737 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:56:07,737 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:56:07,737 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:56:07,737 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:56:07,737 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:56:07,738 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:56:07,738 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:56:07,738 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:56:07,738 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:56:07,738 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:56:07,738 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:56:07,739 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:56:07,739 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:56:07,739 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:56:07,739 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:56:07,739 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:56:07,740 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:56:07,740 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:56:07,740 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:56:07,740 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:56:07,740 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:56:07,740 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:56:07,741 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:56:07,741 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:56:07,741 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:56:07,741 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:56:07,741 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:56:07,741 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:56:07,742 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:56:07,742 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:56:07,742 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:56:07,742 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:56:07,742 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:56:07,743 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:56:07,743 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:56:07,743 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:56:07,743 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:56:07,743 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:56:07,743 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:56:07,743 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:56:07,744 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:56:07,744 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:56:07,744 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:56:07,744 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:56:07,744 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:56:07,745 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:56:07,745 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:56:07,745 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:56:07,745 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:56:07,745 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:56:07,745 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:56:07,746 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:56:07,746 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:56:07,746 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:56:07,746 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:56:07,746 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:56:07,747 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:56:07,747 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:56:07,747 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:56:07,747 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:56:07,749 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:56:07,749 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:56:07,749 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:56:07,749 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:56:07,749 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:56:07,750 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:56:07,750 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:56:07,750 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:56:07,750 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:56:07,752 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:56:07,752 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:56:07,752 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:56:07,752 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:56:07,752 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:56:07,753 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:56:07,753 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:56:07,753 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:56:07,753 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:56:07,755 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:56:07,755 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:56:07,755 WARN L313 ript$VariableManager]: TermVariabe t_funThread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:56:07,755 WARN L313 ript$VariableManager]: TermVariabe t_funThread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:56:07,755 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:56:07,755 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:56:07,756 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:56:07,756 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:56:07,756 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 00:56:07,760 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2020-10-22 00:56:07,760 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-10-22 00:56:07,761 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-22 00:56:07,761 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-22 00:56:07,761 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-22 00:56:07,761 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-10-22 00:56:07,761 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-22 00:56:07,761 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-22 00:56:07,761 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-22 00:56:07,761 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-22 00:56:07,764 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-22 00:56:07,764 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 181 places, 209 transitions, 462 flow [2020-10-22 00:56:07,764 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 181 places, 209 transitions, 462 flow [2020-10-22 00:56:07,764 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 181 places, 209 transitions, 462 flow [2020-10-22 00:56:07,849 INFO L129 PetriNetUnfolder]: 101/580 cut-off events. [2020-10-22 00:56:07,850 INFO L130 PetriNetUnfolder]: For 48/48 co-relation queries the response was YES. [2020-10-22 00:56:07,859 INFO L80 FinitePrefix]: Finished finitePrefix Result has 635 conditions, 580 events. 101/580 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 2306 event pairs, 6 based on Foata normal form. 0/474 useless extension candidates. Maximal degree in co-relation 408. Up to 32 conditions per place. [2020-10-22 00:56:07,892 INFO L116 LiptonReduction]: Number of co-enabled transitions 22288 [2020-10-22 00:56:09,703 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2020-10-22 00:56:10,481 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 82 [2020-10-22 00:56:10,630 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2020-10-22 00:56:11,361 WARN L193 SmtUtils]: Spent 491.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 114 [2020-10-22 00:56:11,568 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2020-10-22 00:56:12,647 WARN L193 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 170 DAG size of output: 166 [2020-10-22 00:56:13,206 WARN L193 SmtUtils]: Spent 555.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2020-10-22 00:56:13,228 INFO L131 LiptonReduction]: Checked pairs total: 59034 [2020-10-22 00:56:13,228 INFO L133 LiptonReduction]: Total number of compositions: 147 [2020-10-22 00:56:13,228 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 74 places, 98 transitions, 240 flow Received shutdown request... [2020-10-22 00:59:59,596 WARN L546 AbstractCegarLoop]: Verification canceled [2020-10-22 00:59:59,599 WARN L235 ceAbstractionStarter]: Timeout [2020-10-22 00:59:59,599 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 12:59:59 BasicIcfg [2020-10-22 00:59:59,599 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-22 00:59:59,601 INFO L168 Benchmark]: Toolchain (without parser) took 261226.47 ms. Allocated memory was 146.8 MB in the beginning and 3.1 GB in the end (delta: 2.9 GB). Free memory was 101.1 MB in the beginning and 1.4 GB in the end (delta: -1.3 GB). Peak memory consumption was 2.6 GB. Max. memory is 7.1 GB. [2020-10-22 00:59:59,601 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 146.8 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-10-22 00:59:59,602 INFO L168 Benchmark]: CACSL2BoogieTranslator took 903.61 ms. Allocated memory was 146.8 MB in the beginning and 203.9 MB in the end (delta: 57.1 MB). Free memory was 100.2 MB in the beginning and 136.2 MB in the end (delta: -35.9 MB). Peak memory consumption was 30.6 MB. Max. memory is 7.1 GB. [2020-10-22 00:59:59,603 INFO L168 Benchmark]: Boogie Procedure Inliner took 90.64 ms. Allocated memory is still 203.9 MB. Free memory was 136.2 MB in the beginning and 133.5 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. [2020-10-22 00:59:59,603 INFO L168 Benchmark]: Boogie Preprocessor took 68.39 ms. Allocated memory is still 203.9 MB. Free memory was 133.5 MB in the beginning and 131.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-10-22 00:59:59,604 INFO L168 Benchmark]: RCFGBuilder took 539.45 ms. Allocated memory is still 203.9 MB. Free memory was 131.4 MB in the beginning and 100.4 MB in the end (delta: 31.0 MB). Peak memory consumption was 31.0 MB. Max. memory is 7.1 GB. [2020-10-22 00:59:59,605 INFO L168 Benchmark]: TraceAbstraction took 259613.87 ms. Allocated memory was 203.9 MB in the beginning and 3.1 GB in the end (delta: 2.9 GB). Free memory was 99.7 MB in the beginning and 1.4 GB in the end (delta: -1.3 GB). Peak memory consumption was 2.6 GB. Max. memory is 7.1 GB. [2020-10-22 00:59:59,618 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 146.8 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 903.61 ms. Allocated memory was 146.8 MB in the beginning and 203.9 MB in the end (delta: 57.1 MB). Free memory was 100.2 MB in the beginning and 136.2 MB in the end (delta: -35.9 MB). Peak memory consumption was 30.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 90.64 ms. Allocated memory is still 203.9 MB. Free memory was 136.2 MB in the beginning and 133.5 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 68.39 ms. Allocated memory is still 203.9 MB. Free memory was 133.5 MB in the beginning and 131.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 539.45 ms. Allocated memory is still 203.9 MB. Free memory was 131.4 MB in the beginning and 100.4 MB in the end (delta: 31.0 MB). Peak memory consumption was 31.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 259613.87 ms. Allocated memory was 203.9 MB in the beginning and 3.1 GB in the end (delta: 2.9 GB). Free memory was 99.7 MB in the beginning and 1.4 GB in the end (delta: -1.3 GB). Peak memory consumption was 2.6 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 1461 VarBasedMoverChecksPositive, 36 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 102 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 5.5s, 106 PlacesBefore, 27 PlacesAfterwards, 119 TransitionsBefore, 35 TransitionsAfterwards, 2744 CoEnabledTransitionPairs, 6 FixpointIterations, 38 TrivialSequentialCompositions, 43 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 21 ConcurrentYvCompositions, 5 ChoiceCompositions, 107 TotalNumberOfCompositions, 4458 MoverChecksTotal - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 3851 VarBasedMoverChecksPositive, 49 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 257 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 5.2s, 131 PlacesBefore, 47 PlacesAfterwards, 149 TransitionsBefore, 61 TransitionsAfterwards, 7672 CoEnabledTransitionPairs, 6 FixpointIterations, 35 TrivialSequentialCompositions, 54 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 24 ConcurrentYvCompositions, 4 ChoiceCompositions, 117 TotalNumberOfCompositions, 18579 MoverChecksTotal - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 7043 VarBasedMoverChecksPositive, 86 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 678 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 6.2s, 156 PlacesBefore, 59 PlacesAfterwards, 179 TransitionsBefore, 76 TransitionsAfterwards, 14112 CoEnabledTransitionPairs, 6 FixpointIterations, 35 TrivialSequentialCompositions, 63 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 30 ConcurrentYvCompositions, 6 ChoiceCompositions, 134 TotalNumberOfCompositions, 35638 MoverChecksTotal - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 10728 VarBasedMoverChecksPositive, 92 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 940 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 5.4s, 181 PlacesBefore, 74 PlacesAfterwards, 209 TransitionsBefore, 98 TransitionsAfterwards, 22288 CoEnabledTransitionPairs, 6 FixpointIterations, 35 TrivialSequentialCompositions, 76 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 32 ConcurrentYvCompositions, 4 ChoiceCompositions, 147 TotalNumberOfCompositions, 59034 MoverChecksTotal - TimeoutResultAtElement [Line: 921]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 921). Cancelled while BasicCegarLoop was constructing initial abstraction,while PetriNet2FiniteAutomaton was constructing automaton for Petri net that has has 74 places, 98 transitions, 240 flow. Already constructed 313376 states. Currently 27354 states in worklist.. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 103 locations, 1 error locations. Started 4 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 259.3s, OverallIterations: 9, TraceHistogramMax: 4, AutomataDifference: 2.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 251.4s, HoareTripleCheckerStatistics: 230 SDtfs, 200 SDslu, 263 SDs, 0 SdLazy, 53 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 55 GetRequests, 39 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 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: 3.6s AutomataMinimizationTime, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 102 NumberOfCodeBlocks, 102 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 61 ConstructedInterpolants, 0 QuantifiedInterpolants, 1249 SizeOfPredicates, 1 NumberOfNonLiveVariables, 373 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 9 InterpolantComputations, 5 PerfectInterpolantSequences, 2/6 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