/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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/goblint-regression/28-race_reach_06-cond_racing1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-1d1d2b5 [2020-10-21 22:15:24,122 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-21 22:15:24,125 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-21 22:15:24,167 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-21 22:15:24,168 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-21 22:15:24,176 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-21 22:15:24,179 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-21 22:15:24,181 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-21 22:15:24,186 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-21 22:15:24,189 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-21 22:15:24,189 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-21 22:15:24,192 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-21 22:15:24,192 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-21 22:15:24,195 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-21 22:15:24,197 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-21 22:15:24,198 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-21 22:15:24,200 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-21 22:15:24,201 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-21 22:15:24,202 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-21 22:15:24,210 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-21 22:15:24,213 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-21 22:15:24,214 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-21 22:15:24,215 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-21 22:15:24,216 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-21 22:15:24,232 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-21 22:15:24,237 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-21 22:15:24,238 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-21 22:15:24,238 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-21 22:15:24,244 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-21 22:15:24,245 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-21 22:15:24,246 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-21 22:15:24,246 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-21 22:15:24,246 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-21 22:15:24,247 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-21 22:15:24,251 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-21 22:15:24,252 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-21 22:15:24,253 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-21 22:15:24,294 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-21 22:15:24,294 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-21 22:15:24,295 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-21 22:15:24,295 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-21 22:15:24,295 INFO L138 SettingsManager]: * Use SBE=true [2020-10-21 22:15:24,296 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-21 22:15:24,296 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-21 22:15:24,299 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-21 22:15:24,299 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-21 22:15:24,300 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-21 22:15:24,301 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-21 22:15:24,301 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-21 22:15:24,301 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-21 22:15:24,301 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-21 22:15:24,302 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-21 22:15:24,302 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-21 22:15:24,302 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-21 22:15:24,302 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-21 22:15:24,303 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-21 22:15:24,303 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-21 22:15:24,303 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-21 22:15:24,303 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-21 22:15:24,303 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-21 22:15:24,304 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-21 22:15:24,304 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-21 22:15:24,304 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-21 22:15:24,304 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-21 22:15:24,305 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-21 22:15:24,305 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-21 22:15:24,305 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-21 22:15:24,677 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-21 22:15:24,692 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-21 22:15:24,697 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-21 22:15:24,698 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-21 22:15:24,698 INFO L275 PluginConnector]: CDTParser initialized [2020-10-21 22:15:24,699 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/28-race_reach_06-cond_racing1.i [2020-10-21 22:15:24,766 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9a252daec/4fd04cc82f9d49908e45be600102b003/FLAGae004a456 [2020-10-21 22:15:25,399 INFO L306 CDTParser]: Found 1 translation units. [2020-10-21 22:15:25,400 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_06-cond_racing1.i [2020-10-21 22:15:25,427 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9a252daec/4fd04cc82f9d49908e45be600102b003/FLAGae004a456 [2020-10-21 22:15:25,622 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9a252daec/4fd04cc82f9d49908e45be600102b003 [2020-10-21 22:15:25,630 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-21 22:15:25,637 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-21 22:15:25,638 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-21 22:15:25,638 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-21 22:15:25,642 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-21 22:15:25,643 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 10:15:25" (1/1) ... [2020-10-21 22:15:25,646 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@195b11b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:15:25, skipping insertion in model container [2020-10-21 22:15:25,646 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 10:15:25" (1/1) ... [2020-10-21 22:15:25,654 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-21 22:15:25,714 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-21 22:15:26,321 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-21 22:15:26,337 INFO L203 MainTranslator]: Completed pre-run [2020-10-21 22:15:26,383 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-21 22:15:26,590 INFO L208 MainTranslator]: Completed translation [2020-10-21 22:15:26,592 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:15:26 WrapperNode [2020-10-21 22:15:26,592 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-21 22:15:26,593 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-21 22:15:26,593 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-21 22:15:26,594 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-21 22:15:26,603 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:15:26" (1/1) ... [2020-10-21 22:15:26,651 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:15:26" (1/1) ... [2020-10-21 22:15:26,700 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-21 22:15:26,701 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-21 22:15:26,701 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-21 22:15:26,701 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-21 22:15:26,713 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:15:26" (1/1) ... [2020-10-21 22:15:26,713 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:15:26" (1/1) ... [2020-10-21 22:15:26,727 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:15:26" (1/1) ... [2020-10-21 22:15:26,728 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:15:26" (1/1) ... [2020-10-21 22:15:26,748 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:15:26" (1/1) ... [2020-10-21 22:15:26,760 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:15:26" (1/1) ... [2020-10-21 22:15:26,765 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:15:26" (1/1) ... [2020-10-21 22:15:26,775 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-21 22:15:26,775 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-21 22:15:26,776 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-21 22:15:26,776 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-21 22:15:26,779 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:15:26" (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 [2020-10-21 22:15:26,854 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-21 22:15:26,855 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-21 22:15:26,855 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-21 22:15:26,855 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-21 22:15:26,855 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2020-10-21 22:15:26,856 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2020-10-21 22:15:26,856 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2020-10-21 22:15:26,856 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-21 22:15:26,856 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-21 22:15:26,856 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-21 22:15:26,859 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-21 22:15:27,348 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-21 22:15:27,348 INFO L298 CfgBuilder]: Removed 18 assume(true) statements. [2020-10-21 22:15:27,351 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 10:15:27 BoogieIcfgContainer [2020-10-21 22:15:27,351 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-21 22:15:27,353 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-21 22:15:27,353 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-21 22:15:27,357 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-21 22:15:27,357 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.10 10:15:25" (1/3) ... [2020-10-21 22:15:27,358 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@571117c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 10:15:27, skipping insertion in model container [2020-10-21 22:15:27,358 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:15:26" (2/3) ... [2020-10-21 22:15:27,359 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@571117c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 10:15:27, skipping insertion in model container [2020-10-21 22:15:27,359 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 10:15:27" (3/3) ... [2020-10-21 22:15:27,361 INFO L111 eAbstractionObserver]: Analyzing ICFG 28-race_reach_06-cond_racing1.i [2020-10-21 22:15:27,372 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-21 22:15:27,372 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-21 22:15:27,379 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-21 22:15:27,380 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-21 22:15:27,409 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:27,409 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:27,410 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:27,410 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:27,410 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:27,411 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:27,411 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:27,411 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:27,412 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:27,412 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:27,412 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:27,412 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:27,413 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:27,413 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:27,413 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:27,414 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:27,414 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:27,414 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:27,419 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:27,419 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:27,419 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:27,419 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:27,420 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:27,420 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:27,420 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:27,420 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:27,421 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:27,444 INFO L149 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2020-10-21 22:15:27,458 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-10-21 22:15:27,476 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-21 22:15:27,477 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-21 22:15:27,477 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-21 22:15:27,477 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-21 22:15:27,477 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-21 22:15:27,477 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-21 22:15:27,478 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-21 22:15:27,478 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-21 22:15:27,493 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-21 22:15:27,496 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 106 places, 119 transitions, 246 flow [2020-10-21 22:15:27,499 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 106 places, 119 transitions, 246 flow [2020-10-21 22:15:27,502 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 106 places, 119 transitions, 246 flow [2020-10-21 22:15:27,597 INFO L129 PetriNetUnfolder]: 25/163 cut-off events. [2020-10-21 22:15:27,597 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2020-10-21 22:15:27,605 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. [2020-10-21 22:15:27,611 INFO L116 LiptonReduction]: Number of co-enabled transitions 2744 [2020-10-21 22:15:29,306 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2020-10-21 22:15:29,412 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 69 [2020-10-21 22:15:29,911 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2020-10-21 22:15:30,045 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2020-10-21 22:15:30,150 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-21 22:15:30,247 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-21 22:15:30,259 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-21 22:15:30,275 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-21 22:15:30,332 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-21 22:15:30,451 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-21 22:15:30,890 WARN L193 SmtUtils]: Spent 414.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 101 [2020-10-21 22:15:31,073 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-10-21 22:15:31,201 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-21 22:15:31,304 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2020-10-21 22:15:32,820 WARN L193 SmtUtils]: Spent 1.49 s on a formula simplification. DAG size of input: 172 DAG size of output: 166 [2020-10-21 22:15:33,557 WARN L193 SmtUtils]: Spent 733.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2020-10-21 22:15:33,585 INFO L131 LiptonReduction]: Checked pairs total: 3996 [2020-10-21 22:15:33,585 INFO L133 LiptonReduction]: Total number of compositions: 113 [2020-10-21 22:15:33,592 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 26 places, 34 transitions, 76 flow [2020-10-21 22:15:33,605 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 132 states. [2020-10-21 22:15:33,608 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states. [2020-10-21 22:15:33,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-10-21 22:15:33,614 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:15:33,615 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-10-21 22:15:33,615 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:15:33,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:15:33,621 INFO L82 PathProgramCache]: Analyzing trace with hash 14707679, now seen corresponding path program 1 times [2020-10-21 22:15:33,632 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:15:33,632 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170385691] [2020-10-21 22:15:33,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:15:33,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:15:33,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:15:33,855 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170385691] [2020-10-21 22:15:33,856 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:15:33,856 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-21 22:15:33,856 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878720910] [2020-10-21 22:15:33,862 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-21 22:15:33,862 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:15:33,878 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-21 22:15:33,879 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 22:15:33,881 INFO L87 Difference]: Start difference. First operand 132 states. Second operand 3 states. [2020-10-21 22:15:33,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:15:33,921 INFO L93 Difference]: Finished difference Result 127 states and 235 transitions. [2020-10-21 22:15:33,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-21 22:15:33,923 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-10-21 22:15:33,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:15:33,935 INFO L225 Difference]: With dead ends: 127 [2020-10-21 22:15:33,936 INFO L226 Difference]: Without dead ends: 73 [2020-10-21 22:15:33,937 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 [2020-10-21 22:15:33,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2020-10-21 22:15:33,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2020-10-21 22:15:33,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2020-10-21 22:15:33,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 126 transitions. [2020-10-21 22:15:33,986 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 126 transitions. Word has length 4 [2020-10-21 22:15:33,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:15:33,987 INFO L481 AbstractCegarLoop]: Abstraction has 73 states and 126 transitions. [2020-10-21 22:15:33,987 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-21 22:15:33,987 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 126 transitions. [2020-10-21 22:15:33,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-10-21 22:15:33,988 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:15:33,988 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2020-10-21 22:15:33,989 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-21 22:15:33,989 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:15:33,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:15:33,989 INFO L82 PathProgramCache]: Analyzing trace with hash 1162071282, now seen corresponding path program 1 times [2020-10-21 22:15:33,990 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:15:33,990 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1866395921] [2020-10-21 22:15:33,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:15:34,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-21 22:15:34,042 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-21 22:15:34,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-21 22:15:34,075 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-21 22:15:34,107 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-21 22:15:34,107 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-21 22:15:34,109 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-21 22:15:34,111 WARN L371 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-21 22:15:34,111 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2020-10-21 22:15:34,119 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:34,119 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:34,119 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:34,120 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:34,120 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:34,120 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:34,120 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:34,120 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:34,121 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:34,121 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:34,121 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:34,121 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:34,121 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:34,122 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:34,122 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:34,122 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:34,122 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:34,122 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:34,123 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:34,123 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:34,123 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:34,123 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:34,124 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:34,124 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:34,124 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:34,124 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:34,125 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:34,125 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:34,125 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:34,125 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:34,125 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:34,126 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:34,126 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:34,126 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:34,126 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:34,126 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:34,127 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:34,127 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:34,127 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:34,128 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:34,128 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:34,128 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:34,128 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:34,128 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:34,128 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:34,130 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:34,131 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:34,131 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:34,131 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:34,131 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:34,131 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:34,132 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:34,132 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:34,132 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:34,139 INFO L149 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2020-10-21 22:15:34,140 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-10-21 22:15:34,140 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-21 22:15:34,140 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-21 22:15:34,140 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-21 22:15:34,140 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-21 22:15:34,140 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-21 22:15:34,141 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-21 22:15:34,141 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-21 22:15:34,141 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-21 22:15:34,144 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-21 22:15:34,144 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 131 places, 149 transitions, 316 flow [2020-10-21 22:15:34,144 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 131 places, 149 transitions, 316 flow [2020-10-21 22:15:34,144 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 131 places, 149 transitions, 316 flow [2020-10-21 22:15:34,193 INFO L129 PetriNetUnfolder]: 43/260 cut-off events. [2020-10-21 22:15:34,193 INFO L130 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2020-10-21 22:15:34,197 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 815 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. [2020-10-21 22:15:34,213 INFO L116 LiptonReduction]: Number of co-enabled transitions 7672 [2020-10-21 22:15:36,484 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 55 [2020-10-21 22:15:36,749 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-10-21 22:15:36,858 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-21 22:15:37,000 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-21 22:15:37,018 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-21 22:15:37,526 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-21 22:15:37,730 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-21 22:15:38,035 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 138 [2020-10-21 22:15:38,289 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2020-10-21 22:15:39,801 WARN L193 SmtUtils]: Spent 1.50 s on a formula simplification. DAG size of input: 178 DAG size of output: 166 [2020-10-21 22:15:40,471 WARN L193 SmtUtils]: Spent 666.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2020-10-21 22:15:40,495 INFO L131 LiptonReduction]: Checked pairs total: 17487 [2020-10-21 22:15:40,496 INFO L133 LiptonReduction]: Total number of compositions: 134 [2020-10-21 22:15:40,496 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 44 places, 57 transitions, 132 flow [2020-10-21 22:15:40,611 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 2113 states. [2020-10-21 22:15:40,612 INFO L276 IsEmpty]: Start isEmpty. Operand 2113 states. [2020-10-21 22:15:40,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-10-21 22:15:40,612 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:15:40,612 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-10-21 22:15:40,613 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:15:40,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:15:40,613 INFO L82 PathProgramCache]: Analyzing trace with hash 24370605, now seen corresponding path program 1 times [2020-10-21 22:15:40,613 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:15:40,614 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1960734629] [2020-10-21 22:15:40,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:15:40,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:15:40,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:15:40,660 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1960734629] [2020-10-21 22:15:40,661 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:15:40,661 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-21 22:15:40,661 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480980691] [2020-10-21 22:15:40,661 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-21 22:15:40,661 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:15:40,662 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-21 22:15:40,662 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 22:15:40,662 INFO L87 Difference]: Start difference. First operand 2113 states. Second operand 3 states. [2020-10-21 22:15:40,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:15:40,723 INFO L93 Difference]: Finished difference Result 2108 states and 5774 transitions. [2020-10-21 22:15:40,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-21 22:15:40,724 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-10-21 22:15:40,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:15:40,743 INFO L225 Difference]: With dead ends: 2108 [2020-10-21 22:15:40,744 INFO L226 Difference]: Without dead ends: 1239 [2020-10-21 22:15:40,744 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 [2020-10-21 22:15:40,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1239 states. [2020-10-21 22:15:40,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1239 to 1239. [2020-10-21 22:15:40,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1239 states. [2020-10-21 22:15:40,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1239 states to 1239 states and 3284 transitions. [2020-10-21 22:15:40,884 INFO L78 Accepts]: Start accepts. Automaton has 1239 states and 3284 transitions. Word has length 4 [2020-10-21 22:15:40,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:15:40,884 INFO L481 AbstractCegarLoop]: Abstraction has 1239 states and 3284 transitions. [2020-10-21 22:15:40,885 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-21 22:15:40,885 INFO L276 IsEmpty]: Start isEmpty. Operand 1239 states and 3284 transitions. [2020-10-21 22:15:40,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-21 22:15:40,886 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:15:40,886 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:15:40,886 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-21 22:15:40,886 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:15:40,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:15:40,887 INFO L82 PathProgramCache]: Analyzing trace with hash -1831045462, now seen corresponding path program 1 times [2020-10-21 22:15:40,887 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:15:40,887 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420217310] [2020-10-21 22:15:40,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:15:40,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:15:41,006 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:15:41,007 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [420217310] [2020-10-21 22:15:41,007 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1349565769] [2020-10-21 22:15:41,008 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 [2020-10-21 22:15:41,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:15:41,079 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-21 22:15:41,082 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-21 22:15:41,097 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-21 22:15:41,098 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-21 22:15:41,098 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [3] total 4 [2020-10-21 22:15:41,098 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228881802] [2020-10-21 22:15:41,099 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-21 22:15:41,099 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:15:41,099 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-21 22:15:41,100 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-21 22:15:41,100 INFO L87 Difference]: Start difference. First operand 1239 states and 3284 transitions. Second operand 3 states. [2020-10-21 22:15:41,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:15:41,131 INFO L93 Difference]: Finished difference Result 1209 states and 3199 transitions. [2020-10-21 22:15:41,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-21 22:15:41,132 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-10-21 22:15:41,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:15:41,141 INFO L225 Difference]: With dead ends: 1209 [2020-10-21 22:15:41,141 INFO L226 Difference]: Without dead ends: 1209 [2020-10-21 22:15:41,142 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 [2020-10-21 22:15:41,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1209 states. [2020-10-21 22:15:41,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1209 to 1209. [2020-10-21 22:15:41,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1209 states. [2020-10-21 22:15:41,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1209 states to 1209 states and 3199 transitions. [2020-10-21 22:15:41,182 INFO L78 Accepts]: Start accepts. Automaton has 1209 states and 3199 transitions. Word has length 8 [2020-10-21 22:15:41,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:15:41,183 INFO L481 AbstractCegarLoop]: Abstraction has 1209 states and 3199 transitions. [2020-10-21 22:15:41,183 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-21 22:15:41,183 INFO L276 IsEmpty]: Start isEmpty. Operand 1209 states and 3199 transitions. [2020-10-21 22:15:41,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-21 22:15:41,184 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:15:41,185 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2020-10-21 22:15:41,399 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-21 22:15:41,400 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:15:41,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:15:41,400 INFO L82 PathProgramCache]: Analyzing trace with hash -468759960, now seen corresponding path program 1 times [2020-10-21 22:15:41,400 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:15:41,400 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140797660] [2020-10-21 22:15:41,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:15:41,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-21 22:15:41,442 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-21 22:15:41,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-21 22:15:41,484 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-21 22:15:41,502 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-21 22:15:41,502 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-21 22:15:41,502 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-21 22:15:41,504 WARN L371 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-21 22:15:41,505 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2020-10-21 22:15:41,519 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:41,519 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:41,519 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:41,519 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:41,519 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:41,520 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:41,520 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:41,520 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:41,520 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:41,520 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:41,521 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:41,521 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:41,521 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:41,521 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:41,521 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:41,521 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:41,522 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:41,522 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:41,523 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:41,523 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:41,523 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:41,523 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:41,524 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:41,524 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:41,524 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:41,524 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:41,524 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:41,525 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:41,525 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:41,525 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:41,525 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:41,525 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:41,525 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:41,526 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:41,526 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:41,526 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:41,526 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:41,527 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:41,527 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:41,527 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:41,527 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:41,528 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:41,528 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:41,528 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:41,528 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:41,528 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:41,529 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:41,529 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:41,532 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:41,533 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:41,533 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:41,534 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:41,534 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:41,534 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:41,535 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:41,542 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:41,542 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:41,543 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:41,543 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:41,543 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:41,543 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:41,543 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:41,543 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:41,546 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:41,547 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:41,547 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:41,547 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:41,547 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:41,548 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:41,548 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:41,548 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:41,548 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:41,549 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:41,549 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:41,550 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:41,550 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:41,550 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:41,550 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:41,550 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:41,550 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:41,551 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:41,553 INFO L149 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2020-10-21 22:15:41,554 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-10-21 22:15:41,554 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-21 22:15:41,554 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-21 22:15:41,554 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-21 22:15:41,555 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-21 22:15:41,555 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-21 22:15:41,555 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-21 22:15:41,555 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-21 22:15:41,555 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-21 22:15:41,558 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-21 22:15:41,562 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 156 places, 179 transitions, 388 flow [2020-10-21 22:15:41,563 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 156 places, 179 transitions, 388 flow [2020-10-21 22:15:41,563 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 156 places, 179 transitions, 388 flow [2020-10-21 22:15:41,653 INFO L129 PetriNetUnfolder]: 66/388 cut-off events. [2020-10-21 22:15:41,653 INFO L130 PetriNetUnfolder]: For 19/19 co-relation queries the response was YES. [2020-10-21 22:15:41,661 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 1375 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. [2020-10-21 22:15:41,680 INFO L116 LiptonReduction]: Number of co-enabled transitions 14112 [2020-10-21 22:15:44,954 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-10-21 22:15:45,096 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2020-10-21 22:15:45,258 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-21 22:15:46,091 WARN L193 SmtUtils]: Spent 660.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 114 [2020-10-21 22:15:46,380 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2020-10-21 22:15:46,630 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-21 22:15:46,646 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-21 22:15:46,654 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-21 22:15:48,245 WARN L193 SmtUtils]: Spent 1.55 s on a formula simplification. DAG size of input: 170 DAG size of output: 166 [2020-10-21 22:15:48,998 WARN L193 SmtUtils]: Spent 750.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2020-10-21 22:15:49,122 INFO L131 LiptonReduction]: Checked pairs total: 34228 [2020-10-21 22:15:49,122 INFO L133 LiptonReduction]: Total number of compositions: 155 [2020-10-21 22:15:49,123 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 58 places, 75 transitions, 180 flow [2020-10-21 22:15:52,126 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 26221 states. [2020-10-21 22:15:52,126 INFO L276 IsEmpty]: Start isEmpty. Operand 26221 states. [2020-10-21 22:15:52,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-10-21 22:15:52,126 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:15:52,127 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-10-21 22:15:52,127 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:15:52,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:15:52,127 INFO L82 PathProgramCache]: Analyzing trace with hash 35509174, now seen corresponding path program 1 times [2020-10-21 22:15:52,127 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:15:52,128 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1372036307] [2020-10-21 22:15:52,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:15:52,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:15:52,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:15:52,153 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1372036307] [2020-10-21 22:15:52,153 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:15:52,153 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-21 22:15:52,154 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676380710] [2020-10-21 22:15:52,154 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-21 22:15:52,154 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:15:52,154 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-21 22:15:52,155 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 22:15:52,155 INFO L87 Difference]: Start difference. First operand 26221 states. Second operand 3 states. [2020-10-21 22:15:52,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:15:52,470 INFO L93 Difference]: Finished difference Result 26216 states and 94942 transitions. [2020-10-21 22:15:52,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-21 22:15:52,471 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-10-21 22:15:52,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:15:52,606 INFO L225 Difference]: With dead ends: 26216 [2020-10-21 22:15:52,606 INFO L226 Difference]: Without dead ends: 14919 [2020-10-21 22:15:52,607 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 [2020-10-21 22:15:52,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14919 states. [2020-10-21 22:15:54,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14919 to 14919. [2020-10-21 22:15:54,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14919 states. [2020-10-21 22:15:54,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14919 states to 14919 states and 53132 transitions. [2020-10-21 22:15:54,438 INFO L78 Accepts]: Start accepts. Automaton has 14919 states and 53132 transitions. Word has length 4 [2020-10-21 22:15:54,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:15:54,438 INFO L481 AbstractCegarLoop]: Abstraction has 14919 states and 53132 transitions. [2020-10-21 22:15:54,439 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-21 22:15:54,439 INFO L276 IsEmpty]: Start isEmpty. Operand 14919 states and 53132 transitions. [2020-10-21 22:15:54,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-21 22:15:54,440 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:15:54,441 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:15:54,441 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-21 22:15:54,441 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:15:54,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:15:54,441 INFO L82 PathProgramCache]: Analyzing trace with hash -1667006931, now seen corresponding path program 1 times [2020-10-21 22:15:54,442 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:15:54,442 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822804051] [2020-10-21 22:15:54,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:15:54,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:15:54,496 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:15:54,497 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822804051] [2020-10-21 22:15:54,497 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1420315697] [2020-10-21 22:15:54,497 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 [2020-10-21 22:15:54,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:15:54,573 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-21 22:15:54,575 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-21 22:15:54,580 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-21 22:15:54,581 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-21 22:15:54,581 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [3] total 4 [2020-10-21 22:15:54,581 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721129167] [2020-10-21 22:15:54,582 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-21 22:15:54,582 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:15:54,582 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-21 22:15:54,583 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-21 22:15:54,583 INFO L87 Difference]: Start difference. First operand 14919 states and 53132 transitions. Second operand 3 states. [2020-10-21 22:15:54,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:15:54,719 INFO L93 Difference]: Finished difference Result 14764 states and 52547 transitions. [2020-10-21 22:15:54,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-21 22:15:54,720 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-10-21 22:15:54,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:15:54,785 INFO L225 Difference]: With dead ends: 14764 [2020-10-21 22:15:54,785 INFO L226 Difference]: Without dead ends: 14764 [2020-10-21 22:15:54,786 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 [2020-10-21 22:15:55,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14764 states. [2020-10-21 22:15:55,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14764 to 14764. [2020-10-21 22:15:55,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14764 states. [2020-10-21 22:15:55,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14764 states to 14764 states and 52547 transitions. [2020-10-21 22:15:55,705 INFO L78 Accepts]: Start accepts. Automaton has 14764 states and 52547 transitions. Word has length 8 [2020-10-21 22:15:55,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:15:55,706 INFO L481 AbstractCegarLoop]: Abstraction has 14764 states and 52547 transitions. [2020-10-21 22:15:55,706 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-21 22:15:55,706 INFO L276 IsEmpty]: Start isEmpty. Operand 14764 states and 52547 transitions. [2020-10-21 22:15:55,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-21 22:15:55,709 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:15:55,709 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:15:55,914 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-21 22:15:55,915 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:15:55,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:15:55,915 INFO L82 PathProgramCache]: Analyzing trace with hash 1253902044, now seen corresponding path program 1 times [2020-10-21 22:15:55,916 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:15:55,916 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310411152] [2020-10-21 22:15:55,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:15:55,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:15:55,957 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:15:55,958 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [310411152] [2020-10-21 22:15:55,958 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2025555096] [2020-10-21 22:15:55,958 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 [2020-10-21 22:15:56,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:15:56,041 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-21 22:15:56,042 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-21 22:15:56,103 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2020-10-21 22:15:56,103 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-21 22:15:56,106 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-21 22:15:56,107 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-21 22:15:56,107 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:11, output treesize:7 [2020-10-21 22:15:56,124 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-21 22:15:56,125 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-21 22:15:56,125 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2020-10-21 22:15:56,125 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492456060] [2020-10-21 22:15:56,126 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-21 22:15:56,126 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:15:56,126 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-21 22:15:56,126 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-21 22:15:56,126 INFO L87 Difference]: Start difference. First operand 14764 states and 52547 transitions. Second operand 3 states. [2020-10-21 22:15:56,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:15:56,250 INFO L93 Difference]: Finished difference Result 8822 states and 24746 transitions. [2020-10-21 22:15:56,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-21 22:15:56,252 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2020-10-21 22:15:56,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:15:56,280 INFO L225 Difference]: With dead ends: 8822 [2020-10-21 22:15:56,280 INFO L226 Difference]: Without dead ends: 8783 [2020-10-21 22:15:56,281 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-21 22:15:56,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8783 states. [2020-10-21 22:15:56,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8783 to 8617. [2020-10-21 22:15:56,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8617 states. [2020-10-21 22:15:57,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8617 states to 8617 states and 24318 transitions. [2020-10-21 22:15:57,499 INFO L78 Accepts]: Start accepts. Automaton has 8617 states and 24318 transitions. Word has length 13 [2020-10-21 22:15:57,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:15:57,500 INFO L481 AbstractCegarLoop]: Abstraction has 8617 states and 24318 transitions. [2020-10-21 22:15:57,500 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-21 22:15:57,500 INFO L276 IsEmpty]: Start isEmpty. Operand 8617 states and 24318 transitions. [2020-10-21 22:15:57,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-21 22:15:57,502 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:15:57,502 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:15:57,717 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-21 22:15:57,718 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:15:57,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:15:57,720 INFO L82 PathProgramCache]: Analyzing trace with hash -134549265, now seen corresponding path program 1 times [2020-10-21 22:15:57,720 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:15:57,721 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37843376] [2020-10-21 22:15:57,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:15:57,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:15:57,765 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:15:57,766 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [37843376] [2020-10-21 22:15:57,766 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [28055349] [2020-10-21 22:15:57,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-21 22:15:57,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:15:57,828 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-21 22:15:57,829 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-21 22:15:57,860 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:15:57,861 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-21 22:15:57,861 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 4 [2020-10-21 22:15:57,862 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804476622] [2020-10-21 22:15:57,863 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-21 22:15:57,863 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:15:57,863 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-21 22:15:57,863 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-10-21 22:15:57,863 INFO L87 Difference]: Start difference. First operand 8617 states and 24318 transitions. Second operand 5 states. [2020-10-21 22:15:57,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:15:57,924 INFO L93 Difference]: Finished difference Result 8599 states and 24287 transitions. [2020-10-21 22:15:57,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-21 22:15:57,925 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-10-21 22:15:57,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:15:57,949 INFO L225 Difference]: With dead ends: 8599 [2020-10-21 22:15:57,949 INFO L226 Difference]: Without dead ends: 8599 [2020-10-21 22:15:57,949 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-10-21 22:15:58,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8599 states. [2020-10-21 22:15:58,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8599 to 8599. [2020-10-21 22:15:58,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8599 states. [2020-10-21 22:15:58,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8599 states to 8599 states and 24287 transitions. [2020-10-21 22:15:58,241 INFO L78 Accepts]: Start accepts. Automaton has 8599 states and 24287 transitions. Word has length 14 [2020-10-21 22:15:58,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:15:58,241 INFO L481 AbstractCegarLoop]: Abstraction has 8599 states and 24287 transitions. [2020-10-21 22:15:58,241 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-21 22:15:58,241 INFO L276 IsEmpty]: Start isEmpty. Operand 8599 states and 24287 transitions. [2020-10-21 22:15:58,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-21 22:15:58,244 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:15:58,244 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1] [2020-10-21 22:15:58,457 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-21 22:15:58,458 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:15:58,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:15:58,458 INFO L82 PathProgramCache]: Analyzing trace with hash -1743988172, now seen corresponding path program 1 times [2020-10-21 22:15:58,459 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:15:58,459 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376256954] [2020-10-21 22:15:58,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:15:58,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-21 22:15:58,483 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-21 22:15:58,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-21 22:15:58,511 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-21 22:15:58,530 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-21 22:15:58,530 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-21 22:15:58,530 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-21 22:15:58,531 WARN L371 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-21 22:15:58,531 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2020-10-21 22:15:58,540 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:58,540 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:58,540 WARN L313 ript$VariableManager]: TermVariabe t_funThread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:58,540 WARN L313 ript$VariableManager]: TermVariabe t_funThread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:58,541 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:58,541 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:58,541 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:58,541 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:58,541 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:58,542 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:58,542 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:58,542 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:58,542 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:58,542 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:58,542 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:58,543 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:58,543 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:58,543 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:58,543 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:58,543 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:58,543 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:58,544 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:58,544 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:58,544 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:58,544 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:58,544 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:58,544 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:58,545 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:58,545 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:58,545 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:58,545 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:58,545 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:58,545 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:58,546 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:58,546 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:58,546 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:58,546 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:58,546 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:58,547 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:58,547 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:58,547 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:58,547 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:58,547 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:58,547 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:58,547 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:58,548 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:58,548 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:58,548 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:58,548 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:58,548 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:58,548 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:58,549 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:58,549 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:58,549 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:58,549 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:58,549 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:58,549 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:58,550 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:58,550 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:58,550 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:58,550 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:58,550 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:58,551 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:58,551 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:58,551 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:58,551 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:58,551 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:58,551 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:58,552 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:58,552 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:58,552 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:58,552 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:58,553 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:58,553 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:58,553 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:58,553 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:58,553 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:58,553 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:58,554 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:58,554 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:58,554 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:58,555 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:58,555 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:58,556 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:58,556 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:58,556 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:58,556 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:58,556 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:58,556 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:58,557 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:58,558 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:58,558 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:58,558 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:58,559 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:58,559 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:58,559 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:58,559 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:58,559 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:58,559 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:58,561 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:58,561 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:58,561 WARN L313 ript$VariableManager]: TermVariabe t_funThread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:58,561 WARN L313 ript$VariableManager]: TermVariabe t_funThread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:58,561 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:58,562 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:58,562 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:58,562 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:58,562 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:15:58,565 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2020-10-21 22:15:58,565 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-10-21 22:15:58,566 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-21 22:15:58,566 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-21 22:15:58,566 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-21 22:15:58,566 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-21 22:15:58,566 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-21 22:15:58,566 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-21 22:15:58,566 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-21 22:15:58,566 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-21 22:15:58,568 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-21 22:15:58,568 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 181 places, 209 transitions, 462 flow [2020-10-21 22:15:58,568 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 181 places, 209 transitions, 462 flow [2020-10-21 22:15:58,569 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 181 places, 209 transitions, 462 flow [2020-10-21 22:15:58,660 INFO L129 PetriNetUnfolder]: 101/580 cut-off events. [2020-10-21 22:15:58,660 INFO L130 PetriNetUnfolder]: For 48/48 co-relation queries the response was YES. [2020-10-21 22:15:58,668 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 2322 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. [2020-10-21 22:15:58,706 INFO L116 LiptonReduction]: Number of co-enabled transitions 22288 [2020-10-21 22:16:01,416 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-10-21 22:16:01,525 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 75 [2020-10-21 22:16:02,381 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2020-10-21 22:16:03,143 WARN L193 SmtUtils]: Spent 389.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 82 [2020-10-21 22:16:03,321 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2020-10-21 22:16:03,366 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-21 22:16:04,739 WARN L193 SmtUtils]: Spent 805.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 126 [2020-10-21 22:16:05,071 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-21 22:16:06,807 WARN L193 SmtUtils]: Spent 1.66 s on a formula simplification. DAG size of input: 170 DAG size of output: 166 [2020-10-21 22:16:07,664 WARN L193 SmtUtils]: Spent 855.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2020-10-21 22:16:07,736 INFO L131 LiptonReduction]: Checked pairs total: 53416 [2020-10-21 22:16:07,736 INFO L133 LiptonReduction]: Total number of compositions: 174 [2020-10-21 22:16:07,737 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 72 places, 95 transitions, 234 flow Received shutdown request... [2020-10-21 22:19:41,760 WARN L546 AbstractCegarLoop]: Verification canceled [2020-10-21 22:19:41,763 WARN L235 ceAbstractionStarter]: Timeout [2020-10-21 22:19:41,766 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.10 10:19:41 BasicIcfg [2020-10-21 22:19:41,766 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-21 22:19:41,775 INFO L168 Benchmark]: Toolchain (without parser) took 256135.29 ms. Allocated memory was 139.5 MB in the beginning and 3.1 GB in the end (delta: 2.9 GB). Free memory was 100.2 MB in the beginning and 670.6 MB in the end (delta: -570.3 MB). Peak memory consumption was 2.5 GB. Max. memory is 7.1 GB. [2020-10-21 22:19:41,776 INFO L168 Benchmark]: CDTParser took 3.32 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-10-21 22:19:41,781 INFO L168 Benchmark]: CACSL2BoogieTranslator took 954.50 ms. Allocated memory was 139.5 MB in the beginning and 200.8 MB in the end (delta: 61.3 MB). Free memory was 99.4 MB in the beginning and 131.0 MB in the end (delta: -31.6 MB). Peak memory consumption was 35.0 MB. Max. memory is 7.1 GB. [2020-10-21 22:19:41,782 INFO L168 Benchmark]: Boogie Procedure Inliner took 107.10 ms. Allocated memory is still 200.8 MB. Free memory was 131.0 MB in the beginning and 128.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. [2020-10-21 22:19:41,782 INFO L168 Benchmark]: Boogie Preprocessor took 74.42 ms. Allocated memory is still 200.8 MB. Free memory was 128.3 MB in the beginning and 126.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-10-21 22:19:41,785 INFO L168 Benchmark]: RCFGBuilder took 576.20 ms. Allocated memory is still 200.8 MB. Free memory was 126.3 MB in the beginning and 95.2 MB in the end (delta: 31.1 MB). Peak memory consumption was 31.1 MB. Max. memory is 7.1 GB. [2020-10-21 22:19:41,786 INFO L168 Benchmark]: TraceAbstraction took 254412.82 ms. Allocated memory was 200.8 MB in the beginning and 3.1 GB in the end (delta: 2.9 GB). Free memory was 95.2 MB in the beginning and 670.6 MB in the end (delta: -575.4 MB). Peak memory consumption was 2.5 GB. Max. memory is 7.1 GB. [2020-10-21 22:19:41,794 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 3.32 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 954.50 ms. Allocated memory was 139.5 MB in the beginning and 200.8 MB in the end (delta: 61.3 MB). Free memory was 99.4 MB in the beginning and 131.0 MB in the end (delta: -31.6 MB). Peak memory consumption was 35.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 107.10 ms. Allocated memory is still 200.8 MB. Free memory was 131.0 MB in the beginning and 128.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 74.42 ms. Allocated memory is still 200.8 MB. Free memory was 128.3 MB in the beginning and 126.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 576.20 ms. Allocated memory is still 200.8 MB. Free memory was 126.3 MB in the beginning and 95.2 MB in the end (delta: 31.1 MB). Peak memory consumption was 31.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 254412.82 ms. Allocated memory was 200.8 MB in the beginning and 3.1 GB in the end (delta: 2.9 GB). Free memory was 95.2 MB in the beginning and 670.6 MB in the end (delta: -575.4 MB). Peak memory consumption was 2.5 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 1884 VarBasedMoverChecksPositive, 104 VarBasedMoverChecksNegative, 70 SemBasedMoverChecksPositive, 34 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.5s, 146 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 6.0s, 106 PlacesBefore, 26 PlacesAfterwards, 119 TransitionsBefore, 34 TransitionsAfterwards, 2744 CoEnabledTransitionPairs, 6 FixpointIterations, 38 TrivialSequentialCompositions, 49 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 21 ConcurrentYvCompositions, 5 ChoiceCompositions, 113 TotalNumberOfCompositions, 3996 MoverChecksTotal - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 4790 VarBasedMoverChecksPositive, 355 VarBasedMoverChecksNegative, 300 SemBasedMoverChecksPositive, 55 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.8s, 436 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 6.3s, 131 PlacesBefore, 44 PlacesAfterwards, 149 TransitionsBefore, 57 TransitionsAfterwards, 7672 CoEnabledTransitionPairs, 7 FixpointIterations, 35 TrivialSequentialCompositions, 69 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 25 ConcurrentYvCompositions, 5 ChoiceCompositions, 134 TotalNumberOfCompositions, 17487 MoverChecksTotal - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 8436 VarBasedMoverChecksPositive, 797 VarBasedMoverChecksNegative, 723 SemBasedMoverChecksPositive, 74 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 1.5s, 505 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 7.5s, 156 PlacesBefore, 58 PlacesAfterwards, 179 TransitionsBefore, 75 TransitionsAfterwards, 14112 CoEnabledTransitionPairs, 7 FixpointIterations, 35 TrivialSequentialCompositions, 84 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 30 ConcurrentYvCompositions, 6 ChoiceCompositions, 155 TotalNumberOfCompositions, 34228 MoverChecksTotal - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 13236 VarBasedMoverChecksPositive, 1310 VarBasedMoverChecksNegative, 1219 SemBasedMoverChecksPositive, 91 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 2.1s, 1695 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 9.1s, 181 PlacesBefore, 72 PlacesAfterwards, 209 TransitionsBefore, 95 TransitionsAfterwards, 22288 CoEnabledTransitionPairs, 6 FixpointIterations, 35 TrivialSequentialCompositions, 102 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 32 ConcurrentYvCompositions, 5 ChoiceCompositions, 174 TotalNumberOfCompositions, 53416 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 72 places, 95 transitions, 234 flow. Already constructed 305938 states. Currently 14976 states in worklist.. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 103 locations, 1 error locations. Started 4 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 254.1s, OverallIterations: 10, TraceHistogramMax: 4, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 246.3s, HoareTripleCheckerStatistics: 276 SDtfs, 124 SDslu, 278 SDs, 0 SdLazy, 85 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 57 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26221occurred 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: 4.4s AutomataMinimizationTime, 7 MinimizatonAttempts, 166 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 130 NumberOfCodeBlocks, 130 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 87 ConstructedInterpolants, 0 QuantifiedInterpolants, 1803 SizeOfPredicates, 3 NumberOfNonLiveVariables, 509 ConjunctsInSsa, 11 ConjunctsInUnsatCore, 11 InterpolantComputations, 6 PerfectInterpolantSequences, 3/8 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown