/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf -i ../../../trunk/examples/svcomp/pthread-ext/01_inc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b09bf87 [2020-10-16 12:31:01,284 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-16 12:31:01,286 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-16 12:31:01,309 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-16 12:31:01,310 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-16 12:31:01,311 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-16 12:31:01,312 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-16 12:31:01,314 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-16 12:31:01,316 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-16 12:31:01,316 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-16 12:31:01,318 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-16 12:31:01,319 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-16 12:31:01,319 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-16 12:31:01,320 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-16 12:31:01,321 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-16 12:31:01,322 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-16 12:31:01,323 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-16 12:31:01,324 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-16 12:31:01,325 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-16 12:31:01,327 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-16 12:31:01,329 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-16 12:31:01,330 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-16 12:31:01,331 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-16 12:31:01,331 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-16 12:31:01,334 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-16 12:31:01,337 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-16 12:31:01,338 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-16 12:31:01,341 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-16 12:31:01,341 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-16 12:31:01,343 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-16 12:31:01,343 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-16 12:31:01,344 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-16 12:31:01,344 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-16 12:31:01,344 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-16 12:31:01,348 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-16 12:31:01,349 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-16 12:31:01,350 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf [2020-10-16 12:31:01,396 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-16 12:31:01,397 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-16 12:31:01,403 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-16 12:31:01,403 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-16 12:31:01,403 INFO L138 SettingsManager]: * Use SBE=true [2020-10-16 12:31:01,403 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-16 12:31:01,404 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-16 12:31:01,404 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-16 12:31:01,404 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-16 12:31:01,405 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-16 12:31:01,405 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-16 12:31:01,405 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-16 12:31:01,405 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-16 12:31:01,405 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-16 12:31:01,406 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-16 12:31:01,406 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-16 12:31:01,406 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-16 12:31:01,406 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-16 12:31:01,406 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-16 12:31:01,407 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-16 12:31:01,407 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-16 12:31:01,407 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 12:31:01,409 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-16 12:31:01,409 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-16 12:31:01,410 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-16 12:31:01,410 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-16 12:31:01,410 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-16 12:31:01,410 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-10-16 12:31:01,410 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-16 12:31:01,411 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-16 12:31:01,411 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-10-16 12:31:01,726 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-16 12:31:01,738 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-16 12:31:01,741 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-16 12:31:01,742 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-16 12:31:01,743 INFO L275 PluginConnector]: CDTParser initialized [2020-10-16 12:31:01,743 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/01_inc.i [2020-10-16 12:31:01,808 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bcbacad27/39b5c621917b4ee99a3bf59ca8f8dddc/FLAGf0ab15f55 [2020-10-16 12:31:02,326 INFO L306 CDTParser]: Found 1 translation units. [2020-10-16 12:31:02,327 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread-ext/01_inc.i [2020-10-16 12:31:02,341 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bcbacad27/39b5c621917b4ee99a3bf59ca8f8dddc/FLAGf0ab15f55 [2020-10-16 12:31:02,633 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bcbacad27/39b5c621917b4ee99a3bf59ca8f8dddc [2020-10-16 12:31:02,641 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-16 12:31:02,643 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-16 12:31:02,644 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-16 12:31:02,644 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-16 12:31:02,647 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-16 12:31:02,648 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 12:31:02" (1/1) ... [2020-10-16 12:31:02,651 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d338159 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:31:02, skipping insertion in model container [2020-10-16 12:31:02,651 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 12:31:02" (1/1) ... [2020-10-16 12:31:02,659 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-16 12:31:02,700 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-16 12:31:03,207 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 12:31:03,219 INFO L203 MainTranslator]: Completed pre-run [2020-10-16 12:31:03,264 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 12:31:03,339 INFO L208 MainTranslator]: Completed translation [2020-10-16 12:31:03,341 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:31:03 WrapperNode [2020-10-16 12:31:03,341 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-16 12:31:03,342 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-16 12:31:03,342 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-16 12:31:03,343 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-16 12:31:03,353 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:31:03" (1/1) ... [2020-10-16 12:31:03,393 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:31:03" (1/1) ... [2020-10-16 12:31:03,420 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-16 12:31:03,420 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-16 12:31:03,420 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-16 12:31:03,421 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-16 12:31:03,429 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:31:03" (1/1) ... [2020-10-16 12:31:03,430 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:31:03" (1/1) ... [2020-10-16 12:31:03,432 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:31:03" (1/1) ... [2020-10-16 12:31:03,432 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:31:03" (1/1) ... [2020-10-16 12:31:03,437 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:31:03" (1/1) ... [2020-10-16 12:31:03,442 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:31:03" (1/1) ... [2020-10-16 12:31:03,444 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:31:03" (1/1) ... [2020-10-16 12:31:03,447 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-16 12:31:03,447 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-16 12:31:03,447 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-16 12:31:03,447 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-16 12:31:03,448 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:31:03" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-10-16 12:31:03,509 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2020-10-16 12:31:03,510 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2020-10-16 12:31:03,510 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-16 12:31:03,510 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-16 12:31:03,510 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-16 12:31:03,510 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-16 12:31:03,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-16 12:31:03,512 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-16 12:31:03,975 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-16 12:31:03,975 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-16 12:31:03,978 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 12:31:03 BoogieIcfgContainer [2020-10-16 12:31:03,978 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-16 12:31:03,980 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-16 12:31:03,980 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-16 12:31:03,984 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-16 12:31:03,984 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 12:31:02" (1/3) ... [2020-10-16 12:31:03,985 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2510e5b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 12:31:03, skipping insertion in model container [2020-10-16 12:31:03,985 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:31:03" (2/3) ... [2020-10-16 12:31:03,986 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2510e5b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 12:31:03, skipping insertion in model container [2020-10-16 12:31:03,986 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 12:31:03" (3/3) ... [2020-10-16 12:31:03,988 INFO L111 eAbstractionObserver]: Analyzing ICFG 01_inc.i [2020-10-16 12:31:04,000 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-16 12:31:04,001 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-16 12:31:04,009 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-16 12:31:04,010 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-16 12:31:04,033 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:04,034 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:04,034 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:04,038 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:04,039 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:04,039 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:04,039 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:04,040 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:04,040 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:04,040 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:04,041 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:04,041 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:04,041 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:04,041 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:04,042 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:04,042 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:04,042 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:04,043 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:04,043 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:04,047 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:04,048 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:04,048 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:04,048 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:04,049 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:04,049 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:04,049 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:04,052 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-16 12:31:04,064 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-10-16 12:31:04,083 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-16 12:31:04,083 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-16 12:31:04,083 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-16 12:31:04,083 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-10-16 12:31:04,083 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-16 12:31:04,084 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-16 12:31:04,084 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-16 12:31:04,084 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-16 12:31:04,095 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-16 12:31:04,095 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 35 places, 35 transitions, 75 flow [2020-10-16 12:31:04,098 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 35 places, 35 transitions, 75 flow [2020-10-16 12:31:04,099 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 35 places, 35 transitions, 75 flow [2020-10-16 12:31:04,130 INFO L129 PetriNetUnfolder]: 4/43 cut-off events. [2020-10-16 12:31:04,130 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 12:31:04,135 INFO L80 FinitePrefix]: Finished finitePrefix Result has 48 conditions, 43 events. 4/43 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 62 event pairs, 0 based on Foata normal form. 0/36 useless extension candidates. Maximal degree in co-relation 25. Up to 4 conditions per place. [2020-10-16 12:31:04,137 INFO L117 LiptonReduction]: Number of co-enabled transitions 320 [2020-10-16 12:31:05,276 INFO L132 LiptonReduction]: Checked pairs total: 295 [2020-10-16 12:31:05,277 INFO L134 LiptonReduction]: Total number of compositions: 34 [2020-10-16 12:31:05,284 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 11 places, 8 transitions, 21 flow [2020-10-16 12:31:05,294 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 19 states. [2020-10-16 12:31:05,296 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2020-10-16 12:31:05,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-10-16 12:31:05,303 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:31:05,304 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-10-16 12:31:05,305 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-16 12:31:05,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:31:05,312 INFO L82 PathProgramCache]: Analyzing trace with hash 7400622, now seen corresponding path program 1 times [2020-10-16 12:31:05,335 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:31:05,336 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944393077] [2020-10-16 12:31:05,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:31:05,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:31:05,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:31:05,497 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944393077] [2020-10-16 12:31:05,498 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:31:05,499 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-16 12:31:05,499 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [477154924] [2020-10-16 12:31:05,501 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 12:31:05,504 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 12:31:05,518 INFO L258 McrAutomatonBuilder]: Finished intersection with 5 states and 4 transitions. [2020-10-16 12:31:05,518 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 12:31:05,522 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 12:31:05,523 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-16 12:31:05,524 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:31:05,539 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-16 12:31:05,540 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-16 12:31:05,542 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 2 states. [2020-10-16 12:31:05,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:31:05,546 INFO L93 Difference]: Finished difference Result 11 states and 13 transitions. [2020-10-16 12:31:05,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-16 12:31:05,548 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 4 [2020-10-16 12:31:05,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:31:05,557 INFO L225 Difference]: With dead ends: 11 [2020-10-16 12:31:05,557 INFO L226 Difference]: Without dead ends: 11 [2020-10-16 12:31:05,558 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-16 12:31:05,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2020-10-16 12:31:05,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2020-10-16 12:31:05,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-10-16 12:31:05,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 13 transitions. [2020-10-16 12:31:05,587 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 13 transitions. Word has length 4 [2020-10-16 12:31:05,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:31:05,587 INFO L481 AbstractCegarLoop]: Abstraction has 11 states and 13 transitions. [2020-10-16 12:31:05,587 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-16 12:31:05,588 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2020-10-16 12:31:05,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-10-16 12:31:05,588 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:31:05,589 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2020-10-16 12:31:05,589 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-16 12:31:05,589 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-16 12:31:05,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:31:05,590 INFO L82 PathProgramCache]: Analyzing trace with hash -1478000843, now seen corresponding path program 1 times [2020-10-16 12:31:05,595 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:31:05,595 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690432751] [2020-10-16 12:31:05,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:31:05,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-16 12:31:05,622 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-16 12:31:05,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-16 12:31:05,635 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-16 12:31:05,657 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-16 12:31:05,658 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-16 12:31:05,659 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-16 12:31:05,661 WARN L371 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-16 12:31:05,661 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2020-10-16 12:31:05,669 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:05,669 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:05,669 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:05,670 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:05,670 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:05,670 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:05,670 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:05,671 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:05,671 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:05,671 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:05,671 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:05,672 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:05,672 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:05,672 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:05,672 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:05,673 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:05,673 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:05,673 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:05,673 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:05,674 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:05,674 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:05,675 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:05,675 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:05,675 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:05,675 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:05,676 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:05,676 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:05,676 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:05,676 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:05,677 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:05,677 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:05,677 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:05,677 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:05,678 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:05,678 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:05,678 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:05,678 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:05,679 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:05,679 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:05,680 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:05,680 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:05,680 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:05,680 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:05,680 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:05,681 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:05,684 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:05,685 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:05,685 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:05,685 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:05,685 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:05,686 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:05,686 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:05,688 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-16 12:31:05,688 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-16 12:31:05,688 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-16 12:31:05,689 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-16 12:31:05,689 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-16 12:31:05,689 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-10-16 12:31:05,689 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-16 12:31:05,689 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-16 12:31:05,690 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-16 12:31:05,690 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-16 12:31:05,692 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-16 12:31:05,693 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 52 places, 52 transitions, 116 flow [2020-10-16 12:31:05,693 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 52 places, 52 transitions, 116 flow [2020-10-16 12:31:05,693 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 52 places, 52 transitions, 116 flow [2020-10-16 12:31:05,729 INFO L129 PetriNetUnfolder]: 7/69 cut-off events. [2020-10-16 12:31:05,729 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2020-10-16 12:31:05,730 INFO L80 FinitePrefix]: Finished finitePrefix Result has 79 conditions, 69 events. 7/69 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 166 event pairs, 0 based on Foata normal form. 0/57 useless extension candidates. Maximal degree in co-relation 44. Up to 6 conditions per place. [2020-10-16 12:31:05,733 INFO L117 LiptonReduction]: Number of co-enabled transitions 1184 [2020-10-16 12:31:06,326 INFO L132 LiptonReduction]: Checked pairs total: 3194 [2020-10-16 12:31:06,326 INFO L134 LiptonReduction]: Total number of compositions: 34 [2020-10-16 12:31:06,327 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 28 places, 25 transitions, 62 flow [2020-10-16 12:31:06,354 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 445 states. [2020-10-16 12:31:06,354 INFO L276 IsEmpty]: Start isEmpty. Operand 445 states. [2020-10-16 12:31:06,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-16 12:31:06,356 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:31:06,357 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:31:06,357 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:31:06,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:31:06,358 INFO L82 PathProgramCache]: Analyzing trace with hash 1194994076, now seen corresponding path program 1 times [2020-10-16 12:31:06,362 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:31:06,363 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637137501] [2020-10-16 12:31:06,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:31:06,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:31:06,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:31:06,551 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637137501] [2020-10-16 12:31:06,552 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:31:06,552 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 12:31:06,553 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [584486704] [2020-10-16 12:31:06,553 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 12:31:06,554 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 12:31:06,557 INFO L258 McrAutomatonBuilder]: Finished intersection with 10 states and 9 transitions. [2020-10-16 12:31:06,557 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 12:31:06,557 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 12:31:06,557 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 12:31:06,558 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:31:06,558 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 12:31:06,558 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-16 12:31:06,559 INFO L87 Difference]: Start difference. First operand 445 states. Second operand 5 states. [2020-10-16 12:31:06,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:31:06,698 INFO L93 Difference]: Finished difference Result 420 states and 1023 transitions. [2020-10-16 12:31:06,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-16 12:31:06,700 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2020-10-16 12:31:06,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:31:06,710 INFO L225 Difference]: With dead ends: 420 [2020-10-16 12:31:06,710 INFO L226 Difference]: Without dead ends: 420 [2020-10-16 12:31:06,711 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-16 12:31:06,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 420 states. [2020-10-16 12:31:06,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 420 to 340. [2020-10-16 12:31:06,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 340 states. [2020-10-16 12:31:06,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 855 transitions. [2020-10-16 12:31:06,761 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 855 transitions. Word has length 9 [2020-10-16 12:31:06,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:31:06,762 INFO L481 AbstractCegarLoop]: Abstraction has 340 states and 855 transitions. [2020-10-16 12:31:06,762 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 12:31:06,762 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 855 transitions. [2020-10-16 12:31:06,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-16 12:31:06,763 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:31:06,763 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1] [2020-10-16 12:31:06,763 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-16 12:31:06,764 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:31:06,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:31:06,764 INFO L82 PathProgramCache]: Analyzing trace with hash -1335142672, now seen corresponding path program 1 times [2020-10-16 12:31:06,769 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:31:06,770 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1582353103] [2020-10-16 12:31:06,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:31:06,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-16 12:31:06,800 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-16 12:31:06,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-16 12:31:06,821 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-16 12:31:06,829 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-16 12:31:06,830 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-16 12:31:06,830 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-16 12:31:06,831 WARN L371 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-16 12:31:06,832 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2020-10-16 12:31:06,839 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:06,840 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:06,840 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:06,840 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:06,840 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:06,840 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:06,841 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:06,841 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:06,841 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:06,841 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:06,842 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:06,842 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:06,842 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:06,842 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:06,842 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:06,843 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:06,843 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:06,843 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:06,843 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:06,844 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:06,844 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:06,844 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:06,844 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:06,845 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:06,845 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:06,845 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:06,845 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:06,845 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:06,846 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:06,846 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:06,846 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:06,846 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:06,846 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:06,862 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:06,863 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:06,863 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:06,864 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:06,864 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:06,864 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:06,864 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:06,865 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:06,865 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:06,865 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:06,865 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:06,865 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:06,866 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:06,866 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:06,866 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:06,866 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:06,867 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:06,867 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:06,867 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:06,867 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:06,867 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:06,868 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:06,868 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:06,868 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:06,869 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:06,869 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:06,869 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:06,869 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:06,869 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:06,869 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:06,870 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:06,874 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:06,875 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:06,875 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:06,875 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:06,875 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:06,876 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:06,876 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:06,877 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:06,877 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:06,878 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:06,878 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:06,878 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:06,878 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:06,878 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:06,880 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-16 12:31:06,880 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-16 12:31:06,880 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-16 12:31:06,881 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-16 12:31:06,881 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-16 12:31:06,881 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-10-16 12:31:06,881 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-16 12:31:06,881 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-16 12:31:06,881 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-16 12:31:06,881 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-16 12:31:06,884 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-16 12:31:06,884 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 69 places, 69 transitions, 159 flow [2020-10-16 12:31:06,884 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 69 places, 69 transitions, 159 flow [2020-10-16 12:31:06,884 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 69 places, 69 transitions, 159 flow [2020-10-16 12:31:06,905 INFO L129 PetriNetUnfolder]: 10/95 cut-off events. [2020-10-16 12:31:06,905 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2020-10-16 12:31:06,907 INFO L80 FinitePrefix]: Finished finitePrefix Result has 111 conditions, 95 events. 10/95 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 251 event pairs, 0 based on Foata normal form. 0/78 useless extension candidates. Maximal degree in co-relation 73. Up to 8 conditions per place. [2020-10-16 12:31:06,911 INFO L117 LiptonReduction]: Number of co-enabled transitions 2592 [2020-10-16 12:31:07,617 INFO L132 LiptonReduction]: Checked pairs total: 9163 [2020-10-16 12:31:07,617 INFO L134 LiptonReduction]: Total number of compositions: 43 [2020-10-16 12:31:07,618 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 39 places, 35 transitions, 91 flow [2020-10-16 12:31:07,862 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 4009 states. [2020-10-16 12:31:07,863 INFO L276 IsEmpty]: Start isEmpty. Operand 4009 states. [2020-10-16 12:31:07,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-16 12:31:07,865 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:31:07,865 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:31:07,866 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:31:07,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:31:07,866 INFO L82 PathProgramCache]: Analyzing trace with hash 680083894, now seen corresponding path program 1 times [2020-10-16 12:31:07,867 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:31:07,868 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911651321] [2020-10-16 12:31:07,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:31:07,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:31:08,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:31:08,016 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1911651321] [2020-10-16 12:31:08,016 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:31:08,016 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 12:31:08,016 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [132383664] [2020-10-16 12:31:08,017 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 12:31:08,017 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 12:31:08,019 INFO L258 McrAutomatonBuilder]: Finished intersection with 10 states and 9 transitions. [2020-10-16 12:31:08,019 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 12:31:08,020 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 12:31:08,020 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 12:31:08,020 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:31:08,021 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 12:31:08,021 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-16 12:31:08,021 INFO L87 Difference]: Start difference. First operand 4009 states. Second operand 5 states. [2020-10-16 12:31:08,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:31:08,255 INFO L93 Difference]: Finished difference Result 4685 states and 16109 transitions. [2020-10-16 12:31:08,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-16 12:31:08,256 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2020-10-16 12:31:08,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:31:08,299 INFO L225 Difference]: With dead ends: 4685 [2020-10-16 12:31:08,299 INFO L226 Difference]: Without dead ends: 4685 [2020-10-16 12:31:08,300 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-16 12:31:08,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4685 states. [2020-10-16 12:31:08,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4685 to 3505. [2020-10-16 12:31:08,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3505 states. [2020-10-16 12:31:08,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3505 states to 3505 states and 12416 transitions. [2020-10-16 12:31:08,531 INFO L78 Accepts]: Start accepts. Automaton has 3505 states and 12416 transitions. Word has length 9 [2020-10-16 12:31:08,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:31:08,532 INFO L481 AbstractCegarLoop]: Abstraction has 3505 states and 12416 transitions. [2020-10-16 12:31:08,532 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 12:31:08,532 INFO L276 IsEmpty]: Start isEmpty. Operand 3505 states and 12416 transitions. [2020-10-16 12:31:08,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-16 12:31:08,534 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:31:08,534 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 1, 1, 1, 1, 1] [2020-10-16 12:31:08,534 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-16 12:31:08,535 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:31:08,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:31:08,535 INFO L82 PathProgramCache]: Analyzing trace with hash -450990296, now seen corresponding path program 1 times [2020-10-16 12:31:08,539 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:31:08,539 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430010582] [2020-10-16 12:31:08,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:31:08,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-16 12:31:08,552 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-16 12:31:08,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-16 12:31:08,562 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-16 12:31:08,567 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-16 12:31:08,568 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-16 12:31:08,568 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-16 12:31:08,568 WARN L371 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-16 12:31:08,569 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2020-10-16 12:31:08,577 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:08,578 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:08,578 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:08,578 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:08,579 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:08,579 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:08,579 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:08,579 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:08,579 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:08,580 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:08,580 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:08,580 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:08,580 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:08,581 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:08,581 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:08,581 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:08,581 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:08,582 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:08,582 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:08,582 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:08,583 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:08,583 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:08,583 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:08,583 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:08,584 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:08,584 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:08,584 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:08,584 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:08,585 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:08,585 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:08,585 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:08,585 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:08,586 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:08,586 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:08,586 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:08,586 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:08,587 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:08,587 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:08,587 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:08,588 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:08,588 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:08,588 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:08,588 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:08,588 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:08,589 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:08,589 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:08,589 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:08,590 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:08,590 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:08,590 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:08,590 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:08,591 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:08,591 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:08,591 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:08,591 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:08,592 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:08,592 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:08,592 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:08,593 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:08,593 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:08,593 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:08,593 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:08,594 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:08,594 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:08,594 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:08,594 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:08,595 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:08,595 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:08,595 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:08,595 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:08,596 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:08,596 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:08,596 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:08,596 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:08,597 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:08,597 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:08,597 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:08,598 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:08,598 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:08,598 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:08,599 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:08,599 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:08,599 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:08,602 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:08,603 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:08,603 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:08,603 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:08,604 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:08,604 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:08,604 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:08,606 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:08,606 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:08,607 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:08,607 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:08,607 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:08,607 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:08,607 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:08,609 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:08,609 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:08,610 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:08,610 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:08,610 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:08,610 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:08,611 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:08,613 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-16 12:31:08,614 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-10-16 12:31:08,614 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-16 12:31:08,614 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-16 12:31:08,614 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-16 12:31:08,615 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-10-16 12:31:08,615 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-16 12:31:08,615 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-16 12:31:08,615 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-16 12:31:08,615 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-16 12:31:08,617 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-16 12:31:08,617 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 86 places, 86 transitions, 204 flow [2020-10-16 12:31:08,618 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 86 places, 86 transitions, 204 flow [2020-10-16 12:31:08,618 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 86 places, 86 transitions, 204 flow [2020-10-16 12:31:08,659 INFO L129 PetriNetUnfolder]: 13/121 cut-off events. [2020-10-16 12:31:08,659 INFO L130 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2020-10-16 12:31:08,662 INFO L80 FinitePrefix]: Finished finitePrefix Result has 144 conditions, 121 events. 13/121 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 357 event pairs, 0 based on Foata normal form. 0/99 useless extension candidates. Maximal degree in co-relation 104. Up to 10 conditions per place. [2020-10-16 12:31:08,668 INFO L117 LiptonReduction]: Number of co-enabled transitions 4544 [2020-10-16 12:31:09,652 INFO L132 LiptonReduction]: Checked pairs total: 16244 [2020-10-16 12:31:09,652 INFO L134 LiptonReduction]: Total number of compositions: 54 [2020-10-16 12:31:09,653 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 50 places, 45 transitions, 122 flow [2020-10-16 12:31:14,437 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 36085 states. [2020-10-16 12:31:14,437 INFO L276 IsEmpty]: Start isEmpty. Operand 36085 states. [2020-10-16 12:31:14,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-16 12:31:14,438 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:31:14,438 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:31:14,439 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-16 12:31:14,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:31:14,439 INFO L82 PathProgramCache]: Analyzing trace with hash 1611612170, now seen corresponding path program 1 times [2020-10-16 12:31:14,442 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:31:14,442 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497780787] [2020-10-16 12:31:14,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:31:14,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:31:14,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:31:14,543 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1497780787] [2020-10-16 12:31:14,543 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:31:14,543 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 12:31:14,543 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [603528654] [2020-10-16 12:31:14,543 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 12:31:14,544 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 12:31:14,545 INFO L258 McrAutomatonBuilder]: Finished intersection with 10 states and 9 transitions. [2020-10-16 12:31:14,545 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 12:31:14,545 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 12:31:14,546 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 12:31:14,546 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:31:14,546 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 12:31:14,546 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-16 12:31:14,546 INFO L87 Difference]: Start difference. First operand 36085 states. Second operand 5 states. [2020-10-16 12:31:16,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:31:16,123 INFO L93 Difference]: Finished difference Result 47190 states and 210662 transitions. [2020-10-16 12:31:16,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-16 12:31:16,124 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2020-10-16 12:31:16,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:31:16,448 INFO L225 Difference]: With dead ends: 47190 [2020-10-16 12:31:16,449 INFO L226 Difference]: Without dead ends: 47190 [2020-10-16 12:31:16,449 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-16 12:31:17,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47190 states. [2020-10-16 12:31:18,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47190 to 34210. [2020-10-16 12:31:18,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34210 states. [2020-10-16 12:31:20,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34210 states to 34210 states and 156599 transitions. [2020-10-16 12:31:20,665 INFO L78 Accepts]: Start accepts. Automaton has 34210 states and 156599 transitions. Word has length 9 [2020-10-16 12:31:20,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:31:20,665 INFO L481 AbstractCegarLoop]: Abstraction has 34210 states and 156599 transitions. [2020-10-16 12:31:20,666 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 12:31:20,666 INFO L276 IsEmpty]: Start isEmpty. Operand 34210 states and 156599 transitions. [2020-10-16 12:31:20,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-16 12:31:20,667 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:31:20,667 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:31:20,667 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-16 12:31:20,667 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-16 12:31:20,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:31:20,668 INFO L82 PathProgramCache]: Analyzing trace with hash -2021235878, now seen corresponding path program 1 times [2020-10-16 12:31:20,671 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:31:20,671 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534434284] [2020-10-16 12:31:20,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:31:20,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:31:20,766 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-16 12:31:20,767 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [534434284] [2020-10-16 12:31:20,767 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:31:20,767 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 12:31:20,768 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1104548516] [2020-10-16 12:31:20,768 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 12:31:20,769 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 12:31:20,770 INFO L258 McrAutomatonBuilder]: Finished intersection with 13 states and 12 transitions. [2020-10-16 12:31:20,770 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 12:31:20,771 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 12:31:20,771 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 12:31:20,771 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:31:20,771 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 12:31:20,772 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-16 12:31:20,772 INFO L87 Difference]: Start difference. First operand 34210 states and 156599 transitions. Second operand 5 states. [2020-10-16 12:31:21,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:31:21,492 INFO L93 Difference]: Finished difference Result 58400 states and 260286 transitions. [2020-10-16 12:31:21,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-16 12:31:21,492 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-10-16 12:31:21,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:31:21,760 INFO L225 Difference]: With dead ends: 58400 [2020-10-16 12:31:21,760 INFO L226 Difference]: Without dead ends: 58400 [2020-10-16 12:31:21,761 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-16 12:31:24,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58400 states. [2020-10-16 12:31:25,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58400 to 42352. [2020-10-16 12:31:25,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42352 states. [2020-10-16 12:31:25,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42352 states to 42352 states and 193270 transitions. [2020-10-16 12:31:25,996 INFO L78 Accepts]: Start accepts. Automaton has 42352 states and 193270 transitions. Word has length 12 [2020-10-16 12:31:25,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:31:25,997 INFO L481 AbstractCegarLoop]: Abstraction has 42352 states and 193270 transitions. [2020-10-16 12:31:25,997 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 12:31:25,997 INFO L276 IsEmpty]: Start isEmpty. Operand 42352 states and 193270 transitions. [2020-10-16 12:31:25,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-16 12:31:25,999 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:31:25,999 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:31:26,000 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-16 12:31:26,000 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-16 12:31:26,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:31:26,000 INFO L82 PathProgramCache]: Analyzing trace with hash 252682179, now seen corresponding path program 1 times [2020-10-16 12:31:26,003 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:31:26,003 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208198644] [2020-10-16 12:31:26,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:31:26,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:31:26,093 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-16 12:31:26,094 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [208198644] [2020-10-16 12:31:26,094 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:31:26,094 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 12:31:26,094 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1280225779] [2020-10-16 12:31:26,095 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 12:31:26,096 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 12:31:26,097 INFO L258 McrAutomatonBuilder]: Finished intersection with 16 states and 15 transitions. [2020-10-16 12:31:26,098 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 12:31:26,098 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 12:31:26,098 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 12:31:26,099 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:31:26,099 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 12:31:26,099 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-16 12:31:26,099 INFO L87 Difference]: Start difference. First operand 42352 states and 193270 transitions. Second operand 5 states. [2020-10-16 12:31:26,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:31:26,689 INFO L93 Difference]: Finished difference Result 70864 states and 315512 transitions. [2020-10-16 12:31:26,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-16 12:31:26,690 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-10-16 12:31:26,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:31:26,910 INFO L225 Difference]: With dead ends: 70864 [2020-10-16 12:31:26,911 INFO L226 Difference]: Without dead ends: 70864 [2020-10-16 12:31:26,911 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-16 12:31:30,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70864 states. [2020-10-16 12:31:31,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70864 to 51472. [2020-10-16 12:31:31,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51472 states. [2020-10-16 12:31:31,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51472 states to 51472 states and 234268 transitions. [2020-10-16 12:31:31,637 INFO L78 Accepts]: Start accepts. Automaton has 51472 states and 234268 transitions. Word has length 15 [2020-10-16 12:31:31,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:31:31,639 INFO L481 AbstractCegarLoop]: Abstraction has 51472 states and 234268 transitions. [2020-10-16 12:31:31,639 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 12:31:31,639 INFO L276 IsEmpty]: Start isEmpty. Operand 51472 states and 234268 transitions. [2020-10-16 12:31:31,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-16 12:31:31,640 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:31:31,640 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 1, 1, 1, 1, 1, 1] [2020-10-16 12:31:31,640 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-16 12:31:31,640 INFO L429 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-16 12:31:31,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:31:31,641 INFO L82 PathProgramCache]: Analyzing trace with hash 649438076, now seen corresponding path program 1 times [2020-10-16 12:31:31,644 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:31:31,644 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1626043535] [2020-10-16 12:31:31,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:31:31,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-16 12:31:31,654 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-16 12:31:31,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-16 12:31:31,660 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-16 12:31:31,665 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-16 12:31:31,665 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-16 12:31:31,665 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-16 12:31:31,666 WARN L371 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-16 12:31:31,666 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2020-10-16 12:31:31,674 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:31,674 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:31,674 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:31,674 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:31,674 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:31,675 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:31,675 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:31,675 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:31,675 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:31,675 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:31,676 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:31,676 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:31,676 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:31,676 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:31,676 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:31,676 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:31,677 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:31,677 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:31,677 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:31,677 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:31,677 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:31,678 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:31,678 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:31,678 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:31,678 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:31,678 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:31,678 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:31,679 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:31,679 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:31,679 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:31,679 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:31,679 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:31,679 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:31,680 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:31,680 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:31,680 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:31,680 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:31,680 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:31,681 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:31,681 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:31,681 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:31,681 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:31,681 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:31,681 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:31,681 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:31,682 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:31,682 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:31,682 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:31,682 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:31,682 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:31,682 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:31,683 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:31,683 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:31,683 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:31,683 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:31,683 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:31,683 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:31,684 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:31,684 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:31,684 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:31,684 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:31,684 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:31,684 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:31,685 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:31,685 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:31,685 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:31,685 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:31,685 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:31,685 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:31,686 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:31,686 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:31,686 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:31,686 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:31,686 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:31,686 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:31,687 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:31,687 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:31,687 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:31,687 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:31,687 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:31,687 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:31,688 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:31,688 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:31,688 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:31,688 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:31,688 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:31,688 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:31,689 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:31,689 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:31,689 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:31,689 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:31,689 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:31,689 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:31,690 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:31,690 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:31,690 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:31,690 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:31,690 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:31,691 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:31,691 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:31,691 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:31,691 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:31,701 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:31,702 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:31,702 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:31,702 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:31,702 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:31,702 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:31,703 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:31,704 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:31,705 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:31,705 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:31,705 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:31,705 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:31,705 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:31,705 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:31,715 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:31,716 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:31,716 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:31,716 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:31,716 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:31,716 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:31,717 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:31,718 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:31,718 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:31,719 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:31,719 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:31,719 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:31,721 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:31,721 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~v~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:31:31,726 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-16 12:31:31,726 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2020-10-16 12:31:31,726 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-16 12:31:31,727 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-16 12:31:31,727 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-16 12:31:31,727 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-10-16 12:31:31,727 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-16 12:31:31,727 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-16 12:31:31,727 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-16 12:31:31,727 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-16 12:31:31,728 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-16 12:31:31,729 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 103 places, 103 transitions, 251 flow [2020-10-16 12:31:31,729 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 103 places, 103 transitions, 251 flow [2020-10-16 12:31:31,730 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 103 places, 103 transitions, 251 flow [2020-10-16 12:31:31,769 INFO L129 PetriNetUnfolder]: 16/147 cut-off events. [2020-10-16 12:31:31,769 INFO L130 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES. [2020-10-16 12:31:31,776 INFO L80 FinitePrefix]: Finished finitePrefix Result has 178 conditions, 147 events. 16/147 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 449 event pairs, 0 based on Foata normal form. 0/120 useless extension candidates. Maximal degree in co-relation 137. Up to 12 conditions per place. [2020-10-16 12:31:31,785 INFO L117 LiptonReduction]: Number of co-enabled transitions 7040 [2020-10-16 12:31:32,902 INFO L132 LiptonReduction]: Checked pairs total: 25658 [2020-10-16 12:31:32,902 INFO L134 LiptonReduction]: Total number of compositions: 61 [2020-10-16 12:31:32,903 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 61 places, 56 transitions, 157 flow Received shutdown request... [2020-10-16 12:35:20,520 WARN L546 AbstractCegarLoop]: Verification canceled [2020-10-16 12:35:20,526 WARN L235 ceAbstractionStarter]: Timeout [2020-10-16 12:35:20,527 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 12:35:20 BasicIcfg [2020-10-16 12:35:20,527 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-16 12:35:20,529 INFO L168 Benchmark]: Toolchain (without parser) took 257886.04 ms. Allocated memory was 140.5 MB in the beginning and 2.7 GB in the end (delta: 2.5 GB). Free memory was 103.0 MB in the beginning and 1.6 GB in the end (delta: -1.5 GB). Peak memory consumption was 2.8 GB. Max. memory is 7.1 GB. [2020-10-16 12:35:20,539 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 140.5 MB. Free memory was 122.1 MB in the beginning and 121.9 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-16 12:35:20,540 INFO L168 Benchmark]: CACSL2BoogieTranslator took 697.78 ms. Allocated memory was 140.5 MB in the beginning and 203.9 MB in the end (delta: 63.4 MB). Free memory was 102.6 MB in the beginning and 163.9 MB in the end (delta: -61.3 MB). Peak memory consumption was 25.8 MB. Max. memory is 7.1 GB. [2020-10-16 12:35:20,541 INFO L168 Benchmark]: Boogie Procedure Inliner took 77.88 ms. Allocated memory is still 203.9 MB. Free memory was 163.9 MB in the beginning and 162.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-10-16 12:35:20,542 INFO L168 Benchmark]: Boogie Preprocessor took 26.47 ms. Allocated memory is still 203.9 MB. Free memory was 162.0 MB in the beginning and 160.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-10-16 12:35:20,543 INFO L168 Benchmark]: RCFGBuilder took 531.27 ms. Allocated memory is still 203.9 MB. Free memory was 160.6 MB in the beginning and 133.5 MB in the end (delta: 27.1 MB). Peak memory consumption was 27.1 MB. Max. memory is 7.1 GB. [2020-10-16 12:35:20,544 INFO L168 Benchmark]: TraceAbstraction took 256546.89 ms. Allocated memory was 203.9 MB in the beginning and 2.7 GB in the end (delta: 2.5 GB). Free memory was 132.8 MB in the beginning and 1.6 GB in the end (delta: -1.5 GB). Peak memory consumption was 2.8 GB. Max. memory is 7.1 GB. [2020-10-16 12:35:20,552 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 140.5 MB. Free memory was 122.1 MB in the beginning and 121.9 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 697.78 ms. Allocated memory was 140.5 MB in the beginning and 203.9 MB in the end (delta: 63.4 MB). Free memory was 102.6 MB in the beginning and 163.9 MB in the end (delta: -61.3 MB). Peak memory consumption was 25.8 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 77.88 ms. Allocated memory is still 203.9 MB. Free memory was 163.9 MB in the beginning and 162.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 26.47 ms. Allocated memory is still 203.9 MB. Free memory was 162.0 MB in the beginning and 160.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 531.27 ms. Allocated memory is still 203.9 MB. Free memory was 160.6 MB in the beginning and 133.5 MB in the end (delta: 27.1 MB). Peak memory consumption was 27.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 256546.89 ms. Allocated memory was 203.9 MB in the beginning and 2.7 GB in the end (delta: 2.5 GB). Free memory was 132.8 MB in the beginning and 1.6 GB in the end (delta: -1.5 GB). Peak memory consumption was 2.8 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 167 VarBasedMoverChecksPositive, 0 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 2 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.1s, 35 PlacesBefore, 11 PlacesAfterwards, 35 TransitionsBefore, 8 TransitionsAfterwards, 320 CoEnabledTransitionPairs, 4 FixpointIterations, 7 TrivialSequentialCompositions, 21 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 3 ChoiceCompositions, 34 TotalNumberOfCompositions, 295 MoverChecksTotal - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 561 VarBasedMoverChecksPositive, 29 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 112 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 0.6s, 52 PlacesBefore, 28 PlacesAfterwards, 52 TransitionsBefore, 25 TransitionsAfterwards, 1184 CoEnabledTransitionPairs, 3 FixpointIterations, 7 TrivialSequentialCompositions, 17 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 7 ConcurrentYvCompositions, 3 ChoiceCompositions, 34 TotalNumberOfCompositions, 3194 MoverChecksTotal - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 1332 VarBasedMoverChecksPositive, 45 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 209 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 0.7s, 69 PlacesBefore, 39 PlacesAfterwards, 69 TransitionsBefore, 35 TransitionsAfterwards, 2592 CoEnabledTransitionPairs, 4 FixpointIterations, 7 TrivialSequentialCompositions, 21 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 11 ConcurrentYvCompositions, 4 ChoiceCompositions, 43 TotalNumberOfCompositions, 9163 MoverChecksTotal - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 2114 VarBasedMoverChecksPositive, 62 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 244 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.0s, 86 PlacesBefore, 50 PlacesAfterwards, 86 TransitionsBefore, 45 TransitionsAfterwards, 4544 CoEnabledTransitionPairs, 4 FixpointIterations, 7 TrivialSequentialCompositions, 28 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 14 ConcurrentYvCompositions, 5 ChoiceCompositions, 54 TotalNumberOfCompositions, 16244 MoverChecksTotal - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 3250 VarBasedMoverChecksPositive, 82 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 497 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.1s, 103 PlacesBefore, 61 PlacesAfterwards, 103 TransitionsBefore, 56 TransitionsAfterwards, 7040 CoEnabledTransitionPairs, 4 FixpointIterations, 7 TrivialSequentialCompositions, 36 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 13 ConcurrentYvCompositions, 5 ChoiceCompositions, 61 TotalNumberOfCompositions, 25658 MoverChecksTotal - TimeoutResultAtElement [Line: 698]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 698). Cancelled while BasicCegarLoop was constructing initial abstraction,while PetriNet2FiniteAutomaton was constructing automaton for Petri net that has has 61 places, 56 transitions, 157 flow. Already constructed 285823 states. Currently 16718 states in worklist.. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 32 locations, 1 error locations. Started 5 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 256.2s, OverallIterations: 10, TraceHistogramMax: 5, AutomataDifference: 4.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 237.4s, HoareTripleCheckerStatistics: 289 SDtfs, 519 SDslu, 372 SDs, 0 SdLazy, 571 SolverSat, 29 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=51472occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 13.4s AutomataMinimizationTime, 6 MinimizatonAttempts, 49680 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 100 NumberOfCodeBlocks, 100 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 52 ConstructedInterpolants, 0 QuantifiedInterpolants, 3968 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 9/9 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