/usr/bin/java -Xmx16000000000 -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/concurrent/VMCAI2021_PN.epf -i ../../../trunk/examples/svcomp/pthread-ext/14_spin2003.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-11af1e5 [2020-10-09 15:14:52,555 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-09 15:14:52,558 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-09 15:14:52,595 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-09 15:14:52,596 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-09 15:14:52,606 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-09 15:14:52,608 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-09 15:14:52,610 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-09 15:14:52,613 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-09 15:14:52,614 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-09 15:14:52,615 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-09 15:14:52,616 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-09 15:14:52,617 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-09 15:14:52,617 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-09 15:14:52,621 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-09 15:14:52,622 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-09 15:14:52,623 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-09 15:14:52,626 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-09 15:14:52,628 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-09 15:14:52,634 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-09 15:14:52,637 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-09 15:14:52,638 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-09 15:14:52,639 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-09 15:14:52,640 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-09 15:14:52,646 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-09 15:14:52,650 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-09 15:14:52,651 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-09 15:14:52,652 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-09 15:14:52,652 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-09 15:14:52,653 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-09 15:14:52,654 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-09 15:14:52,654 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-09 15:14:52,654 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-09 15:14:52,655 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-09 15:14:52,655 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-09 15:14:52,657 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-09 15:14:52,657 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/VMCAI2021_PN.epf [2020-10-09 15:14:52,700 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-09 15:14:52,700 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-09 15:14:52,702 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-09 15:14:52,703 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-09 15:14:52,703 INFO L138 SettingsManager]: * Use SBE=true [2020-10-09 15:14:52,703 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-09 15:14:52,703 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-09 15:14:52,704 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-09 15:14:52,704 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-09 15:14:52,704 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-09 15:14:52,705 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-09 15:14:52,705 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-09 15:14:52,705 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-09 15:14:52,706 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-09 15:14:52,706 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-09 15:14:52,706 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-09 15:14:52,706 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-09 15:14:52,707 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-09 15:14:52,707 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-09 15:14:52,707 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-09 15:14:52,707 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-09 15:14:52,707 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-09 15:14:52,708 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-09 15:14:52,708 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-09 15:14:52,708 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-09 15:14:52,708 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-10-09 15:14:52,708 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-09 15:14:52,709 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-10-09 15:14:52,709 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2020-10-09 15:14:52,709 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-09 15:14:52,979 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-09 15:14:52,993 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-09 15:14:52,996 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-09 15:14:52,998 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-09 15:14:53,000 INFO L275 PluginConnector]: CDTParser initialized [2020-10-09 15:14:53,001 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/14_spin2003.i [2020-10-09 15:14:53,061 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/348cba4cb/8f2eaa73624942f68875f63df6a60412/FLAGd3b8128d0 [2020-10-09 15:14:53,607 INFO L306 CDTParser]: Found 1 translation units. [2020-10-09 15:14:53,608 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/14_spin2003.i [2020-10-09 15:14:53,626 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/348cba4cb/8f2eaa73624942f68875f63df6a60412/FLAGd3b8128d0 [2020-10-09 15:14:53,894 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/348cba4cb/8f2eaa73624942f68875f63df6a60412 [2020-10-09 15:14:53,902 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-09 15:14:53,903 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-09 15:14:53,904 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-09 15:14:53,904 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-09 15:14:53,908 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-09 15:14:53,909 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.10 03:14:53" (1/1) ... [2020-10-09 15:14:53,912 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a0caa91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 03:14:53, skipping insertion in model container [2020-10-09 15:14:53,912 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.10 03:14:53" (1/1) ... [2020-10-09 15:14:53,918 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-09 15:14:53,968 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-09 15:14:54,371 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-09 15:14:54,389 INFO L203 MainTranslator]: Completed pre-run [2020-10-09 15:14:54,453 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-09 15:14:54,521 INFO L208 MainTranslator]: Completed translation [2020-10-09 15:14:54,522 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 03:14:54 WrapperNode [2020-10-09 15:14:54,522 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-09 15:14:54,523 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-09 15:14:54,523 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-09 15:14:54,523 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-09 15:14:54,531 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 03:14:54" (1/1) ... [2020-10-09 15:14:54,546 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 03:14:54" (1/1) ... [2020-10-09 15:14:54,566 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-09 15:14:54,566 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-09 15:14:54,566 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-09 15:14:54,566 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-09 15:14:54,573 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 03:14:54" (1/1) ... [2020-10-09 15:14:54,573 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 03:14:54" (1/1) ... [2020-10-09 15:14:54,576 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 03:14:54" (1/1) ... [2020-10-09 15:14:54,577 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 03:14:54" (1/1) ... [2020-10-09 15:14:54,582 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 03:14:54" (1/1) ... [2020-10-09 15:14:54,586 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 03:14:54" (1/1) ... [2020-10-09 15:14:54,588 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 03:14:54" (1/1) ... [2020-10-09 15:14:54,590 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-09 15:14:54,591 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-09 15:14:54,591 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-09 15:14:54,591 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-09 15:14:54,592 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 03:14:54" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-09 15:14:54,648 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2020-10-09 15:14:54,648 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2020-10-09 15:14:54,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-09 15:14:54,649 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-09 15:14:54,649 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-09 15:14:54,649 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-09 15:14:54,649 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-09 15:14:54,651 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-09 15:14:55,029 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-09 15:14:55,029 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-09 15:14:55,031 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.10 03:14:55 BoogieIcfgContainer [2020-10-09 15:14:55,032 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-09 15:14:55,033 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-09 15:14:55,033 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-09 15:14:55,036 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-09 15:14:55,036 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.10 03:14:53" (1/3) ... [2020-10-09 15:14:55,037 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c33715d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.10 03:14:55, skipping insertion in model container [2020-10-09 15:14:55,037 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 03:14:54" (2/3) ... [2020-10-09 15:14:55,038 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c33715d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.10 03:14:55, skipping insertion in model container [2020-10-09 15:14:55,038 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.10 03:14:55" (3/3) ... [2020-10-09 15:14:55,040 INFO L111 eAbstractionObserver]: Analyzing ICFG 14_spin2003.i [2020-10-09 15:14:55,050 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-09 15:14:55,057 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-09 15:14:55,058 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-09 15:14:55,077 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:55,077 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:55,077 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:55,078 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:55,078 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:55,079 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:55,079 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:55,079 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:55,080 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:55,080 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:55,083 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:55,084 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:55,084 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:55,084 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:55,084 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:55,085 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:55,102 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-10-09 15:14:55,122 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-09 15:14:55,123 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-09 15:14:55,123 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-09 15:14:55,123 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-09 15:14:55,123 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-09 15:14:55,123 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-09 15:14:55,124 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-09 15:14:55,124 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-09 15:14:55,134 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 31 places, 30 transitions, 65 flow [2020-10-09 15:14:55,162 INFO L129 PetriNetUnfolder]: 3/38 cut-off events. [2020-10-09 15:14:55,162 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-09 15:14:55,166 INFO L80 FinitePrefix]: Finished finitePrefix Result has 43 conditions, 38 events. 3/38 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 46 event pairs, 0 based on Foata normal form. 0/32 useless extension candidates. Maximal degree in co-relation 20. Up to 4 conditions per place. [2020-10-09 15:14:55,167 INFO L82 GeneralOperation]: Start removeDead. Operand has 31 places, 30 transitions, 65 flow [2020-10-09 15:14:55,172 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 31 places, 30 transitions, 65 flow [2020-10-09 15:14:55,181 INFO L129 PetriNetUnfolder]: 2/28 cut-off events. [2020-10-09 15:14:55,181 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-09 15:14:55,181 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-09 15:14:55,182 INFO L255 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-09 15:14:55,183 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-09 15:14:55,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 15:14:55,189 INFO L82 PathProgramCache]: Analyzing trace with hash -1994190025, now seen corresponding path program 1 times [2020-10-09 15:14:55,201 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-10-09 15:14:55,202 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [491734945] [2020-10-09 15:14:55,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-10-09 15:14:55,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-09 15:14:55,268 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-09 15:14:55,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-09 15:14:55,279 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-09 15:14:55,303 INFO L173 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2020-10-09 15:14:55,304 INFO L519 BasicCegarLoop]: Counterexample might be feasible [2020-10-09 15:14:55,524 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-10-09 15:14:55,525 WARN L371 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-09 15:14:55,526 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2020-10-09 15:14:55,533 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:55,533 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:55,534 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:55,534 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:55,534 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:55,534 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:55,535 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:55,535 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:55,535 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:55,535 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:55,536 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:55,536 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:55,536 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:55,536 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:55,537 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:55,537 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:55,538 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:55,538 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:55,538 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:55,538 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:55,539 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:55,539 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:55,539 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:55,540 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:55,540 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:55,540 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:55,542 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:55,542 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:55,542 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:55,543 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:55,543 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:55,543 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:55,545 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-09 15:14:55,545 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-09 15:14:55,545 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-09 15:14:55,546 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-09 15:14:55,546 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-09 15:14:55,546 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-09 15:14:55,546 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-09 15:14:55,546 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-09 15:14:55,546 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-09 15:14:55,549 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 44 places, 42 transitions, 96 flow [2020-10-09 15:14:55,568 INFO L129 PetriNetUnfolder]: 5/59 cut-off events. [2020-10-09 15:14:55,568 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2020-10-09 15:14:55,570 INFO L80 FinitePrefix]: Finished finitePrefix Result has 69 conditions, 59 events. 5/59 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 113 event pairs, 0 based on Foata normal form. 0/49 useless extension candidates. Maximal degree in co-relation 39. Up to 6 conditions per place. [2020-10-09 15:14:55,570 INFO L82 GeneralOperation]: Start removeDead. Operand has 44 places, 42 transitions, 96 flow [2020-10-09 15:14:55,572 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 44 places, 42 transitions, 96 flow [2020-10-09 15:14:55,582 INFO L129 PetriNetUnfolder]: 4/40 cut-off events. [2020-10-09 15:14:55,582 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2020-10-09 15:14:55,582 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-09 15:14:55,583 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-09 15:14:55,583 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 15:14:55,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 15:14:55,583 INFO L82 PathProgramCache]: Analyzing trace with hash -2006876545, now seen corresponding path program 1 times [2020-10-09 15:14:55,584 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-10-09 15:14:55,585 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1419535125] [2020-10-09 15:14:55,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-10-09 15:14:55,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 15:14:55,642 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-09 15:14:55,643 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-09 15:14:55,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 15:14:55,671 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-09 15:14:55,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 15:14:55,677 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1419535125] [2020-10-09 15:14:55,678 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-09 15:14:55,678 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2020-10-09 15:14:55,679 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528250105] [2020-10-09 15:14:55,688 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-09 15:14:55,689 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-10-09 15:14:55,703 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-09 15:14:55,705 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-09 15:14:55,759 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 29 out of 42 [2020-10-09 15:14:55,760 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 42 transitions, 96 flow. Second operand 3 states. [2020-10-09 15:14:55,761 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-09 15:14:55,761 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 29 of 42 [2020-10-09 15:14:55,762 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-09 15:14:55,804 INFO L129 PetriNetUnfolder]: 11/88 cut-off events. [2020-10-09 15:14:55,804 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2020-10-09 15:14:55,805 INFO L80 FinitePrefix]: Finished finitePrefix Result has 136 conditions, 88 events. 11/88 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 269 event pairs, 4 based on Foata normal form. 35/119 useless extension candidates. Maximal degree in co-relation 108. Up to 27 conditions per place. [2020-10-09 15:14:55,807 INFO L132 encePairwiseOnDemand]: 29/42 looper letters, 8 selfloop transitions, 7 changer transitions 0/40 dead transitions. [2020-10-09 15:14:55,807 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 40 transitions, 122 flow [2020-10-09 15:14:55,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-09 15:14:55,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-09 15:14:55,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 112 transitions. [2020-10-09 15:14:55,822 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.8888888888888888 [2020-10-09 15:14:55,822 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 112 transitions. [2020-10-09 15:14:55,823 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 112 transitions. [2020-10-09 15:14:55,824 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-09 15:14:55,826 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 112 transitions. [2020-10-09 15:14:55,828 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-10-09 15:14:55,832 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 4 states. [2020-10-09 15:14:55,833 INFO L81 ComplementDD]: Finished complementDD. Result 4 states. [2020-10-09 15:14:55,835 INFO L185 Difference]: Start difference. First operand has 44 places, 42 transitions, 96 flow. Second operand 3 states and 112 transitions. [2020-10-09 15:14:55,836 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 40 transitions, 122 flow [2020-10-09 15:14:55,838 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 40 transitions, 120 flow, removed 1 selfloop flow, removed 0 redundant places. [2020-10-09 15:14:55,842 INFO L241 Difference]: Finished difference. Result has 43 places, 40 transitions, 134 flow [2020-10-09 15:14:55,845 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=134, PETRI_PLACES=43, PETRI_TRANSITIONS=40} [2020-10-09 15:14:55,846 INFO L341 CegarLoopForPetriNet]: 44 programPoint places, -1 predicate places. [2020-10-09 15:14:55,846 INFO L481 AbstractCegarLoop]: Abstraction has has 43 places, 40 transitions, 134 flow [2020-10-09 15:14:55,846 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-09 15:14:55,846 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-09 15:14:55,847 INFO L255 CegarLoopForPetriNet]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-09 15:14:56,055 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-10-09 15:14:56,057 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 15:14:56,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 15:14:56,058 INFO L82 PathProgramCache]: Analyzing trace with hash -225682667, now seen corresponding path program 1 times [2020-10-09 15:14:56,059 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-10-09 15:14:56,060 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1772402964] [2020-10-09 15:14:56,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-10-09 15:14:56,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-09 15:14:56,102 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-09 15:14:56,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-09 15:14:56,114 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-09 15:14:56,127 INFO L173 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2020-10-09 15:14:56,127 INFO L519 BasicCegarLoop]: Counterexample might be feasible [2020-10-09 15:14:56,339 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-10-09 15:14:56,339 WARN L371 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-09 15:14:56,340 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2020-10-09 15:14:56,366 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:56,367 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:56,367 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:56,367 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:56,367 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:56,367 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:56,368 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:56,368 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:56,368 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:56,368 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:56,369 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:56,369 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:56,369 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:56,369 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:56,370 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:56,370 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:56,370 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:56,370 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:56,371 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:56,371 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:56,371 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:56,371 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:56,372 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:56,372 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:56,372 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:56,372 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:56,373 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:56,373 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:56,373 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:56,373 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:56,374 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:56,374 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:56,374 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:56,374 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:56,374 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:56,374 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:56,376 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:56,376 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:56,377 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:56,377 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:56,377 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:56,377 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:56,379 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:56,379 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:56,379 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:56,379 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:56,379 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:56,379 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:56,381 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-09 15:14:56,381 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-09 15:14:56,381 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-09 15:14:56,381 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-09 15:14:56,382 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-09 15:14:56,382 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-09 15:14:56,382 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-09 15:14:56,382 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-09 15:14:56,382 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-09 15:14:56,385 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 57 places, 54 transitions, 129 flow [2020-10-09 15:14:56,398 INFO L129 PetriNetUnfolder]: 7/80 cut-off events. [2020-10-09 15:14:56,398 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2020-10-09 15:14:56,399 INFO L80 FinitePrefix]: Finished finitePrefix Result has 96 conditions, 80 events. 7/80 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 180 event pairs, 0 based on Foata normal form. 0/66 useless extension candidates. Maximal degree in co-relation 63. Up to 8 conditions per place. [2020-10-09 15:14:56,399 INFO L82 GeneralOperation]: Start removeDead. Operand has 57 places, 54 transitions, 129 flow [2020-10-09 15:14:56,401 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 57 places, 54 transitions, 129 flow [2020-10-09 15:14:56,407 INFO L129 PetriNetUnfolder]: 4/36 cut-off events. [2020-10-09 15:14:56,407 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2020-10-09 15:14:56,407 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-09 15:14:56,407 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-09 15:14:56,408 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 15:14:56,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 15:14:56,408 INFO L82 PathProgramCache]: Analyzing trace with hash -1770007424, now seen corresponding path program 1 times [2020-10-09 15:14:56,408 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-10-09 15:14:56,409 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1850213518] [2020-10-09 15:14:56,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2020-10-09 15:14:56,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 15:14:56,471 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-09 15:14:56,472 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-09 15:14:56,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 15:14:56,480 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-09 15:14:56,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 15:14:56,486 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1850213518] [2020-10-09 15:14:56,486 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-09 15:14:56,486 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2020-10-09 15:14:56,487 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806729973] [2020-10-09 15:14:56,487 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-09 15:14:56,487 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-10-09 15:14:56,487 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-09 15:14:56,488 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-09 15:14:56,537 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 36 out of 54 [2020-10-09 15:14:56,538 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 54 transitions, 129 flow. Second operand 3 states. [2020-10-09 15:14:56,538 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-09 15:14:56,538 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 36 of 54 [2020-10-09 15:14:56,538 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-09 15:14:56,639 INFO L129 PetriNetUnfolder]: 171/557 cut-off events. [2020-10-09 15:14:56,640 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2020-10-09 15:14:56,643 INFO L80 FinitePrefix]: Finished finitePrefix Result has 905 conditions, 557 events. 171/557 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 3706 event pairs, 76 based on Foata normal form. 240/763 useless extension candidates. Maximal degree in co-relation 867. Up to 226 conditions per place. [2020-10-09 15:14:56,648 INFO L132 encePairwiseOnDemand]: 36/54 looper letters, 12 selfloop transitions, 10 changer transitions 0/54 dead transitions. [2020-10-09 15:14:56,648 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 54 transitions, 173 flow [2020-10-09 15:14:56,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-09 15:14:56,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-09 15:14:56,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 143 transitions. [2020-10-09 15:14:56,651 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.8827160493827161 [2020-10-09 15:14:56,651 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 143 transitions. [2020-10-09 15:14:56,651 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 143 transitions. [2020-10-09 15:14:56,652 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-09 15:14:56,652 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 143 transitions. [2020-10-09 15:14:56,653 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-10-09 15:14:56,654 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 4 states. [2020-10-09 15:14:56,654 INFO L81 ComplementDD]: Finished complementDD. Result 4 states. [2020-10-09 15:14:56,654 INFO L185 Difference]: Start difference. First operand has 57 places, 54 transitions, 129 flow. Second operand 3 states and 143 transitions. [2020-10-09 15:14:56,654 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 54 transitions, 173 flow [2020-10-09 15:14:56,656 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 54 transitions, 167 flow, removed 3 selfloop flow, removed 0 redundant places. [2020-10-09 15:14:56,659 INFO L241 Difference]: Finished difference. Result has 56 places, 54 transitions, 187 flow [2020-10-09 15:14:56,659 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=105, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=187, PETRI_PLACES=56, PETRI_TRANSITIONS=54} [2020-10-09 15:14:56,659 INFO L341 CegarLoopForPetriNet]: 57 programPoint places, -1 predicate places. [2020-10-09 15:14:56,660 INFO L481 AbstractCegarLoop]: Abstraction has has 56 places, 54 transitions, 187 flow [2020-10-09 15:14:56,660 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-09 15:14:56,660 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-09 15:14:56,660 INFO L255 CegarLoopForPetriNet]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-09 15:14:56,870 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-10-09 15:14:56,871 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 15:14:56,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 15:14:56,872 INFO L82 PathProgramCache]: Analyzing trace with hash -1683000682, now seen corresponding path program 1 times [2020-10-09 15:14:56,873 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-10-09 15:14:56,874 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2036240469] [2020-10-09 15:14:56,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2020-10-09 15:14:56,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-09 15:14:56,914 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-09 15:14:56,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-09 15:14:56,926 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-09 15:14:56,940 INFO L173 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2020-10-09 15:14:56,940 INFO L519 BasicCegarLoop]: Counterexample might be feasible [2020-10-09 15:14:57,149 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-10-09 15:14:57,150 WARN L371 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-09 15:14:57,152 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2020-10-09 15:14:57,160 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:57,160 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:57,160 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:57,161 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:57,161 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:57,161 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:57,161 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:57,161 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:57,162 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:57,162 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:57,162 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:57,162 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:57,163 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:57,163 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:57,163 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:57,163 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:57,163 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:57,164 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:57,164 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:57,164 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:57,164 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:57,165 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:57,165 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:57,165 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:57,165 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:57,165 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:57,166 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:57,166 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:57,166 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:57,166 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:57,166 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:57,167 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:57,167 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:57,167 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:57,167 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:57,167 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:57,168 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:57,168 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:57,168 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:57,168 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:57,169 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:57,169 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:57,169 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:57,169 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:57,169 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:57,170 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:57,171 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:57,172 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:57,174 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:57,174 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:57,174 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:57,175 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:57,176 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:57,176 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:57,176 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:57,177 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:57,177 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:57,177 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:57,184 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:57,184 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:57,184 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:57,184 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:57,185 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:57,185 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:57,186 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-10-09 15:14:57,186 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-09 15:14:57,187 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-09 15:14:57,187 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-09 15:14:57,187 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-09 15:14:57,187 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-09 15:14:57,187 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-09 15:14:57,187 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-09 15:14:57,187 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-09 15:14:57,189 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 70 places, 66 transitions, 164 flow [2020-10-09 15:14:57,201 INFO L129 PetriNetUnfolder]: 9/101 cut-off events. [2020-10-09 15:14:57,201 INFO L130 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2020-10-09 15:14:57,202 INFO L80 FinitePrefix]: Finished finitePrefix Result has 124 conditions, 101 events. 9/101 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 250 event pairs, 0 based on Foata normal form. 0/83 useless extension candidates. Maximal degree in co-relation 89. Up to 10 conditions per place. [2020-10-09 15:14:57,202 INFO L82 GeneralOperation]: Start removeDead. Operand has 70 places, 66 transitions, 164 flow [2020-10-09 15:14:57,204 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 70 places, 66 transitions, 164 flow [2020-10-09 15:14:57,207 INFO L129 PetriNetUnfolder]: 4/36 cut-off events. [2020-10-09 15:14:57,208 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2020-10-09 15:14:57,208 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-09 15:14:57,208 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-09 15:14:57,208 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-09 15:14:57,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 15:14:57,209 INFO L82 PathProgramCache]: Analyzing trace with hash 970431149, now seen corresponding path program 1 times [2020-10-09 15:14:57,209 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-10-09 15:14:57,209 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [169466862] [2020-10-09 15:14:57,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2020-10-09 15:14:57,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 15:14:57,262 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-09 15:14:57,263 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-09 15:14:57,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 15:14:57,275 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-09 15:14:57,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 15:14:57,278 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [169466862] [2020-10-09 15:14:57,278 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-09 15:14:57,278 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2020-10-09 15:14:57,279 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156172366] [2020-10-09 15:14:57,279 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-09 15:14:57,279 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-10-09 15:14:57,279 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-09 15:14:57,280 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-09 15:14:57,327 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 66 [2020-10-09 15:14:57,328 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 66 transitions, 164 flow. Second operand 3 states. [2020-10-09 15:14:57,328 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-09 15:14:57,328 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 66 [2020-10-09 15:14:57,328 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-09 15:14:57,904 INFO L129 PetriNetUnfolder]: 1607/3738 cut-off events. [2020-10-09 15:14:57,904 INFO L130 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2020-10-09 15:14:57,919 INFO L80 FinitePrefix]: Finished finitePrefix Result has 6283 conditions, 3738 events. 1607/3738 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 280. Compared 32378 event pairs, 761 based on Foata normal form. 1557/5020 useless extension candidates. Maximal degree in co-relation 6234. Up to 1637 conditions per place. [2020-10-09 15:14:57,948 INFO L132 encePairwiseOnDemand]: 43/66 looper letters, 16 selfloop transitions, 13 changer transitions 0/68 dead transitions. [2020-10-09 15:14:57,949 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 68 transitions, 226 flow [2020-10-09 15:14:57,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-09 15:14:57,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-09 15:14:57,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 174 transitions. [2020-10-09 15:14:57,956 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.8787878787878788 [2020-10-09 15:14:57,956 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 174 transitions. [2020-10-09 15:14:57,956 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 174 transitions. [2020-10-09 15:14:57,957 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-09 15:14:57,957 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 174 transitions. [2020-10-09 15:14:57,959 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-10-09 15:14:57,961 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 4 states. [2020-10-09 15:14:57,961 INFO L81 ComplementDD]: Finished complementDD. Result 4 states. [2020-10-09 15:14:57,961 INFO L185 Difference]: Start difference. First operand has 70 places, 66 transitions, 164 flow. Second operand 3 states and 174 transitions. [2020-10-09 15:14:57,962 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 68 transitions, 226 flow [2020-10-09 15:14:57,964 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 68 transitions, 214 flow, removed 6 selfloop flow, removed 0 redundant places. [2020-10-09 15:14:57,966 INFO L241 Difference]: Finished difference. Result has 69 places, 68 transitions, 240 flow [2020-10-09 15:14:57,967 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=66, PETRI_DIFFERENCE_MINUEND_FLOW=132, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=240, PETRI_PLACES=69, PETRI_TRANSITIONS=68} [2020-10-09 15:14:57,967 INFO L341 CegarLoopForPetriNet]: 70 programPoint places, -1 predicate places. [2020-10-09 15:14:57,967 INFO L481 AbstractCegarLoop]: Abstraction has has 69 places, 68 transitions, 240 flow [2020-10-09 15:14:57,967 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-09 15:14:57,967 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-09 15:14:57,968 INFO L255 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-09 15:14:58,179 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2020-10-09 15:14:58,179 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-09 15:14:58,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 15:14:58,180 INFO L82 PathProgramCache]: Analyzing trace with hash -1215066237, now seen corresponding path program 1 times [2020-10-09 15:14:58,181 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-10-09 15:14:58,182 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1549863966] [2020-10-09 15:14:58,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2020-10-09 15:14:58,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 15:14:58,246 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-09 15:14:58,253 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-09 15:14:58,322 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-09 15:14:58,323 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-09 15:14:58,339 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 1] term [2020-10-09 15:14:58,340 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-09 15:14:58,351 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-09 15:14:58,352 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1549863966] [2020-10-09 15:14:58,353 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-09 15:14:58,353 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-10-09 15:14:58,353 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456707188] [2020-10-09 15:14:58,354 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-09 15:14:58,354 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-10-09 15:14:58,355 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-09 15:14:58,355 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-09 15:14:58,391 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 66 [2020-10-09 15:14:58,392 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 68 transitions, 240 flow. Second operand 4 states. [2020-10-09 15:14:58,392 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-09 15:14:58,392 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 66 [2020-10-09 15:14:58,392 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-09 15:14:58,443 INFO L129 PetriNetUnfolder]: 17/221 cut-off events. [2020-10-09 15:14:58,444 INFO L130 PetriNetUnfolder]: For 36/36 co-relation queries the response was YES. [2020-10-09 15:14:58,445 INFO L80 FinitePrefix]: Finished finitePrefix Result has 468 conditions, 221 events. 17/221 cut-off events. For 36/36 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1042 event pairs, 17 based on Foata normal form. 43/261 useless extension candidates. Maximal degree in co-relation 437. Up to 65 conditions per place. [2020-10-09 15:14:58,446 INFO L132 encePairwiseOnDemand]: 58/66 looper letters, 1 selfloop transitions, 8 changer transitions 0/48 dead transitions. [2020-10-09 15:14:58,446 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 48 transitions, 178 flow [2020-10-09 15:14:58,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-09 15:14:58,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-09 15:14:58,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 166 transitions. [2020-10-09 15:14:58,447 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.8383838383838383 [2020-10-09 15:14:58,447 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 166 transitions. [2020-10-09 15:14:58,448 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 166 transitions. [2020-10-09 15:14:58,448 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-09 15:14:58,448 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 166 transitions. [2020-10-09 15:14:58,449 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-10-09 15:14:58,451 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 4 states. [2020-10-09 15:14:58,451 INFO L81 ComplementDD]: Finished complementDD. Result 4 states. [2020-10-09 15:14:58,451 INFO L185 Difference]: Start difference. First operand has 69 places, 68 transitions, 240 flow. Second operand 3 states and 166 transitions. [2020-10-09 15:14:58,451 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 48 transitions, 178 flow [2020-10-09 15:14:58,457 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 48 transitions, 134 flow, removed 4 selfloop flow, removed 4 redundant places. [2020-10-09 15:14:58,458 INFO L241 Difference]: Finished difference. Result has 59 places, 48 transitions, 132 flow [2020-10-09 15:14:58,458 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=66, PETRI_DIFFERENCE_MINUEND_FLOW=116, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=132, PETRI_PLACES=59, PETRI_TRANSITIONS=48} [2020-10-09 15:14:58,458 INFO L341 CegarLoopForPetriNet]: 70 programPoint places, -11 predicate places. [2020-10-09 15:14:58,459 INFO L481 AbstractCegarLoop]: Abstraction has has 59 places, 48 transitions, 132 flow [2020-10-09 15:14:58,459 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-09 15:14:58,459 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-09 15:14:58,459 INFO L255 CegarLoopForPetriNet]: trace histogram [5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-09 15:14:58,680 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2020-10-09 15:14:58,680 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-09 15:14:58,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 15:14:58,681 INFO L82 PathProgramCache]: Analyzing trace with hash -1547309126, now seen corresponding path program 1 times [2020-10-09 15:14:58,681 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-10-09 15:14:58,682 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [268884778] [2020-10-09 15:14:58,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 9 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with mathsat -unsat_core_generation=3 [2020-10-09 15:14:58,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-09 15:14:58,735 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-09 15:14:58,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-09 15:14:58,754 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-09 15:14:58,783 INFO L173 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2020-10-09 15:14:58,783 INFO L519 BasicCegarLoop]: Counterexample might be feasible [2020-10-09 15:14:58,996 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3 [2020-10-09 15:14:58,997 WARN L371 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-09 15:14:58,997 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2020-10-09 15:14:59,005 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:59,005 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:59,006 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:59,006 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:59,006 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:59,006 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:59,007 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:59,007 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:59,007 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:59,007 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:59,007 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:59,008 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:59,008 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:59,008 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:59,008 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:59,008 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:59,008 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:59,009 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:59,009 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:59,009 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:59,009 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:59,009 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:59,010 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:59,010 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:59,010 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:59,010 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:59,010 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:59,011 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:59,011 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:59,011 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:59,011 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:59,011 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:59,012 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:59,012 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:59,012 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:59,012 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:59,012 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:59,012 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:59,013 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:59,013 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:59,013 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:59,013 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:59,013 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:59,013 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:59,014 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:59,014 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:59,014 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:59,014 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:59,014 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:59,015 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:59,015 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:59,015 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:59,015 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:59,016 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:59,016 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:59,016 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:59,018 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:59,018 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:59,018 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:59,018 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:59,018 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:59,018 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:59,020 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:59,020 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:59,020 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:59,020 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:59,020 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:59,021 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:59,022 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:59,022 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:59,022 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:59,022 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:59,022 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:59,023 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:59,024 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:59,024 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:59,024 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:59,024 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:59,024 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:59,024 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:14:59,026 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2020-10-09 15:14:59,026 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-09 15:14:59,026 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-09 15:14:59,026 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-09 15:14:59,026 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-09 15:14:59,027 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-09 15:14:59,027 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-09 15:14:59,027 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-09 15:14:59,027 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-09 15:14:59,028 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 83 places, 78 transitions, 201 flow [2020-10-09 15:14:59,040 INFO L129 PetriNetUnfolder]: 11/122 cut-off events. [2020-10-09 15:14:59,041 INFO L130 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES. [2020-10-09 15:14:59,042 INFO L80 FinitePrefix]: Finished finitePrefix Result has 153 conditions, 122 events. 11/122 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 316 event pairs, 0 based on Foata normal form. 0/100 useless extension candidates. Maximal degree in co-relation 117. Up to 12 conditions per place. [2020-10-09 15:14:59,042 INFO L82 GeneralOperation]: Start removeDead. Operand has 83 places, 78 transitions, 201 flow [2020-10-09 15:14:59,043 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 83 places, 78 transitions, 201 flow [2020-10-09 15:14:59,047 INFO L129 PetriNetUnfolder]: 4/37 cut-off events. [2020-10-09 15:14:59,047 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2020-10-09 15:14:59,047 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-09 15:14:59,047 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-09 15:14:59,047 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 15:14:59,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 15:14:59,048 INFO L82 PathProgramCache]: Analyzing trace with hash 943217830, now seen corresponding path program 1 times [2020-10-09 15:14:59,048 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-10-09 15:14:59,048 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2061198040] [2020-10-09 15:14:59,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 10 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with mathsat -unsat_core_generation=3 [2020-10-09 15:14:59,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 15:14:59,121 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-09 15:14:59,122 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-09 15:14:59,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 15:14:59,132 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-09 15:14:59,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 15:14:59,134 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2061198040] [2020-10-09 15:14:59,134 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-09 15:14:59,135 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2020-10-09 15:14:59,135 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912094126] [2020-10-09 15:14:59,136 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-09 15:14:59,136 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-10-09 15:14:59,136 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-09 15:14:59,136 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-09 15:14:59,202 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 78 [2020-10-09 15:14:59,202 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 78 transitions, 201 flow. Second operand 3 states. [2020-10-09 15:14:59,202 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-09 15:14:59,202 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 78 [2020-10-09 15:14:59,203 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-09 15:15:02,304 INFO L129 PetriNetUnfolder]: 12247/23814 cut-off events. [2020-10-09 15:15:02,305 INFO L130 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES. [2020-10-09 15:15:02,449 INFO L80 FinitePrefix]: Finished finitePrefix Result has 41077 conditions, 23814 events. 12247/23814 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 1374. Compared 236752 event pairs, 5979 based on Foata normal form. 9558/31433 useless extension candidates. Maximal degree in co-relation 41016. Up to 10816 conditions per place. [2020-10-09 15:15:02,625 INFO L132 encePairwiseOnDemand]: 50/78 looper letters, 20 selfloop transitions, 16 changer transitions 0/82 dead transitions. [2020-10-09 15:15:02,625 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 82 transitions, 281 flow [2020-10-09 15:15:02,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-09 15:15:02,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-09 15:15:02,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 205 transitions. [2020-10-09 15:15:02,627 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.8760683760683761 [2020-10-09 15:15:02,627 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 205 transitions. [2020-10-09 15:15:02,627 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 205 transitions. [2020-10-09 15:15:02,627 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-09 15:15:02,628 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 205 transitions. [2020-10-09 15:15:02,628 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-10-09 15:15:02,629 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 4 states. [2020-10-09 15:15:02,629 INFO L81 ComplementDD]: Finished complementDD. Result 4 states. [2020-10-09 15:15:02,630 INFO L185 Difference]: Start difference. First operand has 83 places, 78 transitions, 201 flow. Second operand 3 states and 205 transitions. [2020-10-09 15:15:02,630 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 82 transitions, 281 flow [2020-10-09 15:15:02,631 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 82 transitions, 261 flow, removed 10 selfloop flow, removed 0 redundant places. [2020-10-09 15:15:02,635 INFO L241 Difference]: Finished difference. Result has 82 places, 82 transitions, 293 flow [2020-10-09 15:15:02,635 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=78, PETRI_DIFFERENCE_MINUEND_FLOW=159, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=293, PETRI_PLACES=82, PETRI_TRANSITIONS=82} [2020-10-09 15:15:02,635 INFO L341 CegarLoopForPetriNet]: 83 programPoint places, -1 predicate places. [2020-10-09 15:15:02,635 INFO L481 AbstractCegarLoop]: Abstraction has has 82 places, 82 transitions, 293 flow [2020-10-09 15:15:02,636 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-09 15:15:02,636 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-09 15:15:02,636 INFO L255 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-09 15:15:02,847 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 mathsat -unsat_core_generation=3 [2020-10-09 15:15:02,847 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 15:15:02,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 15:15:02,848 INFO L82 PathProgramCache]: Analyzing trace with hash -657677876, now seen corresponding path program 1 times [2020-10-09 15:15:02,848 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-10-09 15:15:02,848 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1164732662] [2020-10-09 15:15:02,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 11 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with mathsat -unsat_core_generation=3 [2020-10-09 15:15:02,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 15:15:02,894 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-09 15:15:02,895 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-09 15:15:02,918 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 15:15:02,918 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-09 15:15:02,926 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 1] term [2020-10-09 15:15:02,926 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-09 15:15:02,933 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 15:15:02,934 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1164732662] [2020-10-09 15:15:02,935 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-09 15:15:02,935 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-10-09 15:15:02,935 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257561845] [2020-10-09 15:15:02,936 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-09 15:15:02,936 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-10-09 15:15:02,936 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-09 15:15:02,936 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-09 15:15:02,963 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 78 [2020-10-09 15:15:02,963 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 82 transitions, 293 flow. Second operand 4 states. [2020-10-09 15:15:02,964 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-09 15:15:02,964 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 78 [2020-10-09 15:15:02,964 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-09 15:15:03,035 INFO L129 PetriNetUnfolder]: 49/498 cut-off events. [2020-10-09 15:15:03,036 INFO L130 PetriNetUnfolder]: For 85/85 co-relation queries the response was YES. [2020-10-09 15:15:03,037 INFO L80 FinitePrefix]: Finished finitePrefix Result has 1085 conditions, 498 events. 49/498 cut-off events. For 85/85 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 3280 event pairs, 49 based on Foata normal form. 146/637 useless extension candidates. Maximal degree in co-relation 1053. Up to 161 conditions per place. [2020-10-09 15:15:03,039 INFO L132 encePairwiseOnDemand]: 68/78 looper letters, 1 selfloop transitions, 10 changer transitions 0/57 dead transitions. [2020-10-09 15:15:03,039 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 57 transitions, 215 flow [2020-10-09 15:15:03,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-09 15:15:03,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-09 15:15:03,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 196 transitions. [2020-10-09 15:15:03,041 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.8376068376068376 [2020-10-09 15:15:03,041 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 196 transitions. [2020-10-09 15:15:03,041 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 196 transitions. [2020-10-09 15:15:03,041 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-09 15:15:03,041 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 196 transitions. [2020-10-09 15:15:03,042 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-10-09 15:15:03,043 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 4 states. [2020-10-09 15:15:03,043 INFO L81 ComplementDD]: Finished complementDD. Result 4 states. [2020-10-09 15:15:03,043 INFO L185 Difference]: Start difference. First operand has 82 places, 82 transitions, 293 flow. Second operand 3 states and 196 transitions. [2020-10-09 15:15:03,043 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 57 transitions, 215 flow [2020-10-09 15:15:03,046 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 57 transitions, 161 flow, removed 5 selfloop flow, removed 4 redundant places. [2020-10-09 15:15:03,048 INFO L241 Difference]: Finished difference. Result has 70 places, 57 transitions, 159 flow [2020-10-09 15:15:03,048 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=78, PETRI_DIFFERENCE_MINUEND_FLOW=139, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=159, PETRI_PLACES=70, PETRI_TRANSITIONS=57} [2020-10-09 15:15:03,048 INFO L341 CegarLoopForPetriNet]: 83 programPoint places, -13 predicate places. [2020-10-09 15:15:03,048 INFO L481 AbstractCegarLoop]: Abstraction has has 70 places, 57 transitions, 159 flow [2020-10-09 15:15:03,048 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-09 15:15:03,049 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-09 15:15:03,049 INFO L255 CegarLoopForPetriNet]: trace histogram [6, 6, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-09 15:15:03,260 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 mathsat -unsat_core_generation=3 [2020-10-09 15:15:03,261 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 15:15:03,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 15:15:03,261 INFO L82 PathProgramCache]: Analyzing trace with hash 150317185, now seen corresponding path program 1 times [2020-10-09 15:15:03,261 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-10-09 15:15:03,261 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [57797870] [2020-10-09 15:15:03,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 12 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with mathsat -unsat_core_generation=3 [2020-10-09 15:15:03,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-09 15:15:03,310 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-09 15:15:03,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-09 15:15:03,321 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-09 15:15:03,337 INFO L173 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2020-10-09 15:15:03,337 INFO L519 BasicCegarLoop]: Counterexample might be feasible [2020-10-09 15:15:03,545 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 mathsat -unsat_core_generation=3 [2020-10-09 15:15:03,545 WARN L371 ceAbstractionStarter]: 5 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-09 15:15:03,546 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 6 thread instances. [2020-10-09 15:15:03,562 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:03,563 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:03,563 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:03,563 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:03,563 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:03,563 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:03,563 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:03,564 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:03,564 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:03,564 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:03,564 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:03,565 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:03,565 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:03,565 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:03,565 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:03,565 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:03,566 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:03,566 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:03,566 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:03,566 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:03,566 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:03,566 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:03,566 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:03,567 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:03,567 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:03,567 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:03,567 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:03,567 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:03,567 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:03,568 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:03,568 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:03,568 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:03,568 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:03,568 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:03,568 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:03,568 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:03,569 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:03,569 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:03,569 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:03,569 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:03,569 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:03,569 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:03,570 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:03,570 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:03,570 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:03,570 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:03,570 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:03,570 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:03,571 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:03,571 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:03,572 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:03,572 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:03,572 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:03,572 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:03,572 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:03,572 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:03,573 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:03,573 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:03,573 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:03,573 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:03,573 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:03,574 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:03,574 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:03,574 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:03,574 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:03,574 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:03,576 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:03,576 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:03,576 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:03,576 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:03,576 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:03,576 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:03,578 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:03,578 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:03,578 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:03,578 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:03,578 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:03,578 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:03,580 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:03,580 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:03,580 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:03,580 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:03,581 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:03,581 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:03,582 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:03,582 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:03,582 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:03,582 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:03,583 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:03,583 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:03,584 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:03,584 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:03,585 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:03,585 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:03,585 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:03,585 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:03,586 INFO L253 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2020-10-09 15:15:03,586 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-09 15:15:03,587 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-09 15:15:03,587 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-09 15:15:03,587 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-09 15:15:03,587 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-09 15:15:03,587 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-09 15:15:03,587 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-09 15:15:03,587 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-09 15:15:03,588 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 96 places, 90 transitions, 240 flow [2020-10-09 15:15:03,599 INFO L129 PetriNetUnfolder]: 13/143 cut-off events. [2020-10-09 15:15:03,599 INFO L130 PetriNetUnfolder]: For 50/50 co-relation queries the response was YES. [2020-10-09 15:15:03,600 INFO L80 FinitePrefix]: Finished finitePrefix Result has 183 conditions, 143 events. 13/143 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 383 event pairs, 0 based on Foata normal form. 0/117 useless extension candidates. Maximal degree in co-relation 146. Up to 14 conditions per place. [2020-10-09 15:15:03,601 INFO L82 GeneralOperation]: Start removeDead. Operand has 96 places, 90 transitions, 240 flow [2020-10-09 15:15:03,602 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 96 places, 90 transitions, 240 flow [2020-10-09 15:15:03,604 INFO L129 PetriNetUnfolder]: 4/38 cut-off events. [2020-10-09 15:15:03,604 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2020-10-09 15:15:03,604 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-09 15:15:03,604 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-09 15:15:03,604 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 15:15:03,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 15:15:03,605 INFO L82 PathProgramCache]: Analyzing trace with hash -875393333, now seen corresponding path program 1 times [2020-10-09 15:15:03,606 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-10-09 15:15:03,606 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [377556430] [2020-10-09 15:15:03,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 13 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with mathsat -unsat_core_generation=3 [2020-10-09 15:15:03,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 15:15:03,670 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-09 15:15:03,671 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-09 15:15:03,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 15:15:03,680 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-09 15:15:03,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 15:15:03,681 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [377556430] [2020-10-09 15:15:03,682 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-09 15:15:03,682 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2020-10-09 15:15:03,682 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591084555] [2020-10-09 15:15:03,683 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-09 15:15:03,683 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-10-09 15:15:03,684 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-09 15:15:03,685 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-09 15:15:03,751 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 90 [2020-10-09 15:15:03,752 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 90 transitions, 240 flow. Second operand 3 states. [2020-10-09 15:15:03,752 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-09 15:15:03,752 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 90 [2020-10-09 15:15:03,752 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-09 15:15:28,414 INFO L129 PetriNetUnfolder]: 83483/144571 cut-off events. [2020-10-09 15:15:28,414 INFO L130 PetriNetUnfolder]: For 50/50 co-relation queries the response was YES. [2020-10-09 15:15:29,350 INFO L80 FinitePrefix]: Finished finitePrefix Result has 254521 conditions, 144571 events. 83483/144571 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 7039. Compared 1560998 event pairs, 41526 based on Foata normal form. 56335/188010 useless extension candidates. Maximal degree in co-relation 254447. Up to 67399 conditions per place. [2020-10-09 15:15:30,267 INFO L132 encePairwiseOnDemand]: 57/90 looper letters, 24 selfloop transitions, 19 changer transitions 0/96 dead transitions. [2020-10-09 15:15:30,267 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 96 transitions, 338 flow [2020-10-09 15:15:30,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-09 15:15:30,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-09 15:15:30,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 236 transitions. [2020-10-09 15:15:30,269 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.8740740740740741 [2020-10-09 15:15:30,269 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 236 transitions. [2020-10-09 15:15:30,269 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 236 transitions. [2020-10-09 15:15:30,269 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-09 15:15:30,269 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 236 transitions. [2020-10-09 15:15:30,270 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-10-09 15:15:30,271 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 4 states. [2020-10-09 15:15:30,271 INFO L81 ComplementDD]: Finished complementDD. Result 4 states. [2020-10-09 15:15:30,271 INFO L185 Difference]: Start difference. First operand has 96 places, 90 transitions, 240 flow. Second operand 3 states and 236 transitions. [2020-10-09 15:15:30,271 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 96 transitions, 338 flow [2020-10-09 15:15:30,275 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 96 transitions, 308 flow, removed 15 selfloop flow, removed 0 redundant places. [2020-10-09 15:15:30,277 INFO L241 Difference]: Finished difference. Result has 95 places, 96 transitions, 346 flow [2020-10-09 15:15:30,277 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=186, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=346, PETRI_PLACES=95, PETRI_TRANSITIONS=96} [2020-10-09 15:15:30,277 INFO L341 CegarLoopForPetriNet]: 96 programPoint places, -1 predicate places. [2020-10-09 15:15:30,277 INFO L481 AbstractCegarLoop]: Abstraction has has 95 places, 96 transitions, 346 flow [2020-10-09 15:15:30,277 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-09 15:15:30,278 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-09 15:15:30,278 INFO L255 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [MP mathsat -unsat_core_generation=3 (13)] Forcibly destroying the process [MP mathsat -unsat_core_generation=3 (13)] Rare case: The thread was killed right after we checked if it was killed and before we wanted to kill it manually [2020-10-09 15:15:30,806 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 mathsat -unsat_core_generation=3 [2020-10-09 15:15:30,806 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 15:15:30,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 15:15:30,807 INFO L82 PathProgramCache]: Analyzing trace with hash 801856781, now seen corresponding path program 1 times [2020-10-09 15:15:30,807 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-10-09 15:15:30,807 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1291787257] [2020-10-09 15:15:30,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 14 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with mathsat -unsat_core_generation=3 [2020-10-09 15:15:30,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 15:15:30,871 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-09 15:15:30,872 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-09 15:15:30,894 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 15:15:30,894 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-09 15:15:30,897 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 1] term [2020-10-09 15:15:30,898 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-09 15:15:30,904 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 15:15:30,904 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1291787257] [2020-10-09 15:15:30,905 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-09 15:15:30,905 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-10-09 15:15:30,905 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475456038] [2020-10-09 15:15:30,905 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-09 15:15:30,906 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-10-09 15:15:30,906 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-09 15:15:30,906 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-09 15:15:30,936 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 90 [2020-10-09 15:15:30,936 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 96 transitions, 346 flow. Second operand 4 states. [2020-10-09 15:15:30,936 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-09 15:15:30,936 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 90 [2020-10-09 15:15:30,936 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-09 15:15:31,059 INFO L129 PetriNetUnfolder]: 129/1127 cut-off events. [2020-10-09 15:15:31,059 INFO L130 PetriNetUnfolder]: For 198/198 co-relation queries the response was YES. [2020-10-09 15:15:31,062 INFO L80 FinitePrefix]: Finished finitePrefix Result has 2502 conditions, 1127 events. 129/1127 cut-off events. For 198/198 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 9566 event pairs, 129 based on Foata normal form. 450/1563 useless extension candidates. Maximal degree in co-relation 2469. Up to 385 conditions per place. [2020-10-09 15:15:31,065 INFO L132 encePairwiseOnDemand]: 78/90 looper letters, 1 selfloop transitions, 12 changer transitions 0/66 dead transitions. [2020-10-09 15:15:31,065 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 66 transitions, 252 flow [2020-10-09 15:15:31,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-09 15:15:31,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-09 15:15:31,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 226 transitions. [2020-10-09 15:15:31,066 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.837037037037037 [2020-10-09 15:15:31,067 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 226 transitions. [2020-10-09 15:15:31,067 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 226 transitions. [2020-10-09 15:15:31,067 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-09 15:15:31,067 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 226 transitions. [2020-10-09 15:15:31,068 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-10-09 15:15:31,068 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 4 states. [2020-10-09 15:15:31,069 INFO L81 ComplementDD]: Finished complementDD. Result 4 states. [2020-10-09 15:15:31,069 INFO L185 Difference]: Start difference. First operand has 95 places, 96 transitions, 346 flow. Second operand 3 states and 226 transitions. [2020-10-09 15:15:31,069 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 66 transitions, 252 flow [2020-10-09 15:15:31,073 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 66 transitions, 188 flow, removed 6 selfloop flow, removed 4 redundant places. [2020-10-09 15:15:31,074 INFO L241 Difference]: Finished difference. Result has 81 places, 66 transitions, 186 flow [2020-10-09 15:15:31,075 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=162, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=186, PETRI_PLACES=81, PETRI_TRANSITIONS=66} [2020-10-09 15:15:31,075 INFO L341 CegarLoopForPetriNet]: 96 programPoint places, -15 predicate places. [2020-10-09 15:15:31,075 INFO L481 AbstractCegarLoop]: Abstraction has has 81 places, 66 transitions, 186 flow [2020-10-09 15:15:31,075 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-09 15:15:31,075 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-09 15:15:31,075 INFO L255 CegarLoopForPetriNet]: trace histogram [7, 7, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-09 15:15:31,286 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 mathsat -unsat_core_generation=3 [2020-10-09 15:15:31,286 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 15:15:31,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 15:15:31,287 INFO L82 PathProgramCache]: Analyzing trace with hash 2043720427, now seen corresponding path program 1 times [2020-10-09 15:15:31,287 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-10-09 15:15:31,287 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1988124477] [2020-10-09 15:15:31,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 15 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with mathsat -unsat_core_generation=3 [2020-10-09 15:15:31,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-09 15:15:31,338 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-09 15:15:31,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-09 15:15:31,354 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-09 15:15:31,375 INFO L173 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2020-10-09 15:15:31,375 INFO L519 BasicCegarLoop]: Counterexample might be feasible [2020-10-09 15:15:31,576 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 mathsat -unsat_core_generation=3 [2020-10-09 15:15:31,576 WARN L371 ceAbstractionStarter]: 6 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-09 15:15:31,576 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 7 thread instances. [2020-10-09 15:15:31,584 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:31,585 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:31,585 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:31,585 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:31,585 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of7ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:31,585 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of7ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:31,586 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of7ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:31,586 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of7ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:31,586 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:31,586 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:31,587 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:31,588 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:31,588 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:31,588 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:31,588 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of7ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:31,588 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of7ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:31,589 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of7ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:31,589 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of7ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:31,589 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:31,589 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:31,591 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:31,591 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:31,591 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:31,591 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:31,591 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of7ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:31,591 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of7ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:31,599 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of7ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:31,599 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of7ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:31,599 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:31,599 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:31,599 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:31,599 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:31,600 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:31,600 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:31,600 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of7ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:31,600 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of7ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:31,600 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of7ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:31,600 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of7ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:31,601 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:31,601 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:31,601 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:31,601 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:31,601 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:31,601 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:31,601 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of7ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:31,602 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of7ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:31,603 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of7ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:31,603 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of7ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:31,603 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:31,603 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:31,604 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:31,604 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:31,604 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:31,604 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:31,604 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of7ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:31,604 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of7ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:31,604 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of7ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:31,604 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of7ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:31,605 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:31,605 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:31,605 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:31,605 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:31,605 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:31,605 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:31,605 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of7ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:31,606 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of7ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:31,606 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of7ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:31,606 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of7ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:31,606 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:31,606 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:31,606 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:31,607 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:31,607 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of7ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:31,607 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of7ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:31,607 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:31,607 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:31,608 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of7ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:31,608 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:31,608 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of7ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:31,608 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:31,608 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:31,608 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:31,609 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of7ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:31,609 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of7ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:31,609 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:31,609 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:31,610 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:31,610 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:31,611 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of7ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:31,611 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:31,611 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:31,611 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:31,611 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:31,611 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of7ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:31,613 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:31,613 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:31,613 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of7ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:31,613 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of7ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:31,614 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:31,614 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:31,615 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:31,616 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:31,616 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:31,616 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of7ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:31,616 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:31,616 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of7ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:31,617 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:31,617 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:31,617 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:31,618 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:31,618 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of7ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:31,618 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of7ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:15:31,619 INFO L253 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2020-10-09 15:15:31,619 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-09 15:15:31,619 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-09 15:15:31,619 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-09 15:15:31,620 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-09 15:15:31,620 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-09 15:15:31,620 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-09 15:15:31,620 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-09 15:15:31,620 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-09 15:15:31,621 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 109 places, 102 transitions, 281 flow [2020-10-09 15:15:31,633 INFO L129 PetriNetUnfolder]: 15/164 cut-off events. [2020-10-09 15:15:31,633 INFO L130 PetriNetUnfolder]: For 77/77 co-relation queries the response was YES. [2020-10-09 15:15:31,635 INFO L80 FinitePrefix]: Finished finitePrefix Result has 214 conditions, 164 events. 15/164 cut-off events. For 77/77 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 446 event pairs, 0 based on Foata normal form. 0/134 useless extension candidates. Maximal degree in co-relation 176. Up to 16 conditions per place. [2020-10-09 15:15:31,635 INFO L82 GeneralOperation]: Start removeDead. Operand has 109 places, 102 transitions, 281 flow [2020-10-09 15:15:31,636 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 109 places, 102 transitions, 281 flow [2020-10-09 15:15:31,638 INFO L129 PetriNetUnfolder]: 4/37 cut-off events. [2020-10-09 15:15:31,638 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2020-10-09 15:15:31,638 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-09 15:15:31,639 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-09 15:15:31,639 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 15:15:31,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 15:15:31,639 INFO L82 PathProgramCache]: Analyzing trace with hash 460400988, now seen corresponding path program 1 times [2020-10-09 15:15:31,639 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-10-09 15:15:31,640 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1324292562] [2020-10-09 15:15:31,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 16 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with mathsat -unsat_core_generation=3 [2020-10-09 15:15:31,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 15:15:31,714 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-09 15:15:31,715 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-09 15:15:31,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 15:15:31,725 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-09 15:15:31,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 15:15:31,727 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1324292562] [2020-10-09 15:15:31,727 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-09 15:15:31,728 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2020-10-09 15:15:31,728 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680682764] [2020-10-09 15:15:31,728 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-09 15:15:31,728 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-10-09 15:15:31,729 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-09 15:15:31,729 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-09 15:15:31,835 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 102 [2020-10-09 15:15:31,835 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 102 transitions, 281 flow. Second operand 3 states. [2020-10-09 15:15:31,836 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-09 15:15:31,836 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 102 [2020-10-09 15:15:31,836 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-09 15:20:57,666 INFO L129 PetriNetUnfolder]: 531731/827300 cut-off events. [2020-10-09 15:20:57,666 INFO L130 PetriNetUnfolder]: For 77/77 co-relation queries the response was YES. [2020-10-09 15:21:07,084 INFO L80 FinitePrefix]: Finished finitePrefix Result has 1496762 conditions, 827300 events. 531731/827300 cut-off events. For 77/77 co-relation queries the response was YES. Maximal size of possible extension queue 32928. Compared 8937885 event pairs, 235972 based on Foata normal form. 322668/1068450 useless extension candidates. Maximal degree in co-relation 1496674. Up to 403726 conditions per place. [2020-10-09 15:21:13,212 INFO L132 encePairwiseOnDemand]: 64/102 looper letters, 28 selfloop transitions, 22 changer transitions 0/110 dead transitions. [2020-10-09 15:21:13,213 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 110 transitions, 397 flow [2020-10-09 15:21:13,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-09 15:21:13,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-09 15:21:13,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 267 transitions. [2020-10-09 15:21:13,214 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.8725490196078431 [2020-10-09 15:21:13,214 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 267 transitions. [2020-10-09 15:21:13,214 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 267 transitions. [2020-10-09 15:21:13,215 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-09 15:21:13,215 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 267 transitions. [2020-10-09 15:21:13,215 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-10-09 15:21:13,216 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 4 states. [2020-10-09 15:21:13,216 INFO L81 ComplementDD]: Finished complementDD. Result 4 states. [2020-10-09 15:21:13,216 INFO L185 Difference]: Start difference. First operand has 109 places, 102 transitions, 281 flow. Second operand 3 states and 267 transitions. [2020-10-09 15:21:13,216 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 110 transitions, 397 flow [2020-10-09 15:21:13,218 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 110 transitions, 355 flow, removed 21 selfloop flow, removed 0 redundant places. [2020-10-09 15:21:13,220 INFO L241 Difference]: Finished difference. Result has 108 places, 110 transitions, 399 flow [2020-10-09 15:21:13,220 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=102, PETRI_DIFFERENCE_MINUEND_FLOW=213, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=399, PETRI_PLACES=108, PETRI_TRANSITIONS=110} [2020-10-09 15:21:13,220 INFO L341 CegarLoopForPetriNet]: 109 programPoint places, -1 predicate places. [2020-10-09 15:21:13,220 INFO L481 AbstractCegarLoop]: Abstraction has has 108 places, 110 transitions, 399 flow [2020-10-09 15:21:13,220 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-09 15:21:13,221 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-09 15:21:13,221 INFO L255 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-09 15:21:13,421 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 mathsat -unsat_core_generation=3 [2020-10-09 15:21:13,422 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 15:21:13,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 15:21:13,422 INFO L82 PathProgramCache]: Analyzing trace with hash 1467570839, now seen corresponding path program 1 times [2020-10-09 15:21:13,423 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-10-09 15:21:13,423 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [649282875] [2020-10-09 15:21:13,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 17 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with mathsat -unsat_core_generation=3 [2020-10-09 15:21:13,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 15:21:13,478 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-09 15:21:13,480 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-09 15:21:13,490 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 15:21:13,490 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-09 15:21:13,496 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 1] term [2020-10-09 15:21:13,496 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-09 15:21:13,506 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 15:21:13,506 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [649282875] [2020-10-09 15:21:13,507 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-09 15:21:13,507 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-10-09 15:21:13,507 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367693568] [2020-10-09 15:21:13,507 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-09 15:21:13,507 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-10-09 15:21:13,508 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-09 15:21:13,508 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-09 15:21:13,551 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 102 [2020-10-09 15:21:13,551 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 110 transitions, 399 flow. Second operand 4 states. [2020-10-09 15:21:13,551 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-09 15:21:13,551 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 102 [2020-10-09 15:21:13,552 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-09 15:21:13,779 INFO L129 PetriNetUnfolder]: 321/2540 cut-off events. [2020-10-09 15:21:13,780 INFO L130 PetriNetUnfolder]: For 455/455 co-relation queries the response was YES. [2020-10-09 15:21:13,789 INFO L80 FinitePrefix]: Finished finitePrefix Result has 5711 conditions, 2540 events. 321/2540 cut-off events. For 455/455 co-relation queries the response was YES. Maximal size of possible extension queue 154. Compared 26212 event pairs, 321 based on Foata normal form. 1286/3801 useless extension candidates. Maximal degree in co-relation 5677. Up to 897 conditions per place. [2020-10-09 15:21:13,793 INFO L132 encePairwiseOnDemand]: 88/102 looper letters, 1 selfloop transitions, 14 changer transitions 0/75 dead transitions. [2020-10-09 15:21:13,794 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 75 transitions, 289 flow [2020-10-09 15:21:13,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-09 15:21:13,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-09 15:21:13,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 256 transitions. [2020-10-09 15:21:13,795 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.8366013071895425 [2020-10-09 15:21:13,795 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 256 transitions. [2020-10-09 15:21:13,795 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 256 transitions. [2020-10-09 15:21:13,796 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-09 15:21:13,796 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 256 transitions. [2020-10-09 15:21:13,796 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-10-09 15:21:13,797 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 4 states. [2020-10-09 15:21:13,797 INFO L81 ComplementDD]: Finished complementDD. Result 4 states. [2020-10-09 15:21:13,797 INFO L185 Difference]: Start difference. First operand has 108 places, 110 transitions, 399 flow. Second operand 3 states and 256 transitions. [2020-10-09 15:21:13,797 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 75 transitions, 289 flow [2020-10-09 15:21:13,804 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 75 transitions, 215 flow, removed 7 selfloop flow, removed 4 redundant places. [2020-10-09 15:21:13,805 INFO L241 Difference]: Finished difference. Result has 92 places, 75 transitions, 213 flow [2020-10-09 15:21:13,805 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=102, PETRI_DIFFERENCE_MINUEND_FLOW=185, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=213, PETRI_PLACES=92, PETRI_TRANSITIONS=75} [2020-10-09 15:21:13,806 INFO L341 CegarLoopForPetriNet]: 109 programPoint places, -17 predicate places. [2020-10-09 15:21:13,806 INFO L481 AbstractCegarLoop]: Abstraction has has 92 places, 75 transitions, 213 flow [2020-10-09 15:21:13,806 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-09 15:21:13,806 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-09 15:21:13,806 INFO L255 CegarLoopForPetriNet]: trace histogram [8, 8, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-09 15:21:14,014 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 mathsat -unsat_core_generation=3 [2020-10-09 15:21:14,015 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 15:21:14,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 15:21:14,015 INFO L82 PathProgramCache]: Analyzing trace with hash -153787144, now seen corresponding path program 1 times [2020-10-09 15:21:14,016 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-10-09 15:21:14,016 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1962580666] [2020-10-09 15:21:14,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 18 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with mathsat -unsat_core_generation=3 [2020-10-09 15:21:14,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-09 15:21:14,078 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-09 15:21:14,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-09 15:21:14,094 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-09 15:21:14,112 INFO L173 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2020-10-09 15:21:14,112 INFO L519 BasicCegarLoop]: Counterexample might be feasible [2020-10-09 15:21:14,313 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 mathsat -unsat_core_generation=3 [2020-10-09 15:21:14,313 WARN L371 ceAbstractionStarter]: 7 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-09 15:21:14,313 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 8 thread instances. [2020-10-09 15:21:14,325 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:21:14,326 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:21:14,326 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:21:14,326 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:21:14,326 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of8ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:21:14,326 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of8ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:21:14,326 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of8ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:21:14,327 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of8ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:21:14,327 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:21:14,327 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:21:14,327 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:21:14,327 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:21:14,327 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:21:14,327 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:21:14,328 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of8ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:21:14,328 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of8ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:21:14,328 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of8ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:21:14,328 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of8ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:21:14,328 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:21:14,328 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:21:14,328 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:21:14,328 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:21:14,329 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:21:14,329 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:21:14,329 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of8ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:21:14,329 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of8ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:21:14,329 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of8ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:21:14,329 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of8ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:21:14,329 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:21:14,329 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:21:14,329 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:21:14,329 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:21:14,329 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:21:14,329 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:21:14,330 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of8ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:21:14,330 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of8ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:21:14,330 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of8ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:21:14,330 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of8ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:21:14,330 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:21:14,330 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:21:14,330 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread8of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:21:14,330 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread8of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:21:14,330 WARN L313 ript$VariableManager]: TermVariabe thr1Thread8of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:21:14,330 WARN L313 ript$VariableManager]: TermVariabe thr1Thread8of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:21:14,330 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread8of8ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:21:14,331 WARN L313 ript$VariableManager]: TermVariabe thr1Thread8of8ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:21:14,331 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread8of8ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:21:14,331 WARN L313 ript$VariableManager]: TermVariabe thr1Thread8of8ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:21:14,331 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread8of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:21:14,331 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread8of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:21:14,331 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:21:14,331 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:21:14,331 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:21:14,331 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:21:14,331 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of8ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:21:14,331 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of8ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:21:14,332 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of8ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:21:14,332 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of8ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:21:14,332 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:21:14,332 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:21:14,332 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:21:14,332 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:21:14,332 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:21:14,332 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:21:14,332 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of8ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:21:14,332 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of8ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:21:14,332 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of8ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:21:14,332 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of8ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:21:14,333 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:21:14,333 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:21:14,333 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of8ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:21:14,333 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of8ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:21:14,333 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:21:14,333 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:21:14,333 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of8ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:21:14,333 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of8ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:21:14,334 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of8ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:21:14,334 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of8ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:21:14,334 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:21:14,334 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:21:14,334 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of8ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:21:14,334 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:21:14,334 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:21:14,335 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:21:14,335 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:21:14,335 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of8ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:21:14,336 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:21:14,336 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:21:14,336 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of8ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:21:14,336 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:21:14,336 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:21:14,336 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of8ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:21:14,337 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:21:14,337 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:21:14,337 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:21:14,337 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of8ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:21:14,337 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of8ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:21:14,337 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:21:14,339 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:21:14,339 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of8ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:21:14,339 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of8ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:21:14,339 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:21:14,339 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:21:14,340 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:21:14,341 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:21:14,341 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:21:14,341 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:21:14,341 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:21:14,341 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of8ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:21:14,341 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of8ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:21:14,342 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:21:14,342 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:21:14,342 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of8ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:21:14,342 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:21:14,342 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of8ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:21:14,343 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:21:14,343 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of8ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:21:14,343 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:21:14,343 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of8ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:21:14,344 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:21:14,344 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:21:14,344 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:21:14,344 WARN L313 ript$VariableManager]: TermVariabe thr1Thread8of8ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:21:14,345 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread8of8ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:21:14,345 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread8of8ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:21:14,345 WARN L313 ript$VariableManager]: TermVariabe thr1Thread8of8ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:21:14,345 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread8of8ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:21:14,345 WARN L313 ript$VariableManager]: TermVariabe thr1Thread8of8ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 15:21:14,346 INFO L253 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2020-10-09 15:21:14,346 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-09 15:21:14,346 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-09 15:21:14,346 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-09 15:21:14,347 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-09 15:21:14,347 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-09 15:21:14,347 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-09 15:21:14,347 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-09 15:21:14,347 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-09 15:21:14,349 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 122 places, 114 transitions, 324 flow [2020-10-09 15:21:14,360 INFO L129 PetriNetUnfolder]: 17/185 cut-off events. [2020-10-09 15:21:14,360 INFO L130 PetriNetUnfolder]: For 112/112 co-relation queries the response was YES. [2020-10-09 15:21:14,361 INFO L80 FinitePrefix]: Finished finitePrefix Result has 246 conditions, 185 events. 17/185 cut-off events. For 112/112 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 526 event pairs, 0 based on Foata normal form. 0/151 useless extension candidates. Maximal degree in co-relation 207. Up to 18 conditions per place. [2020-10-09 15:21:14,361 INFO L82 GeneralOperation]: Start removeDead. Operand has 122 places, 114 transitions, 324 flow [2020-10-09 15:21:14,362 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 122 places, 114 transitions, 324 flow [2020-10-09 15:21:14,363 INFO L129 PetriNetUnfolder]: 4/39 cut-off events. [2020-10-09 15:21:14,363 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2020-10-09 15:21:14,364 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-09 15:21:14,364 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-09 15:21:14,364 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 15:21:14,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 15:21:14,364 INFO L82 PathProgramCache]: Analyzing trace with hash -1947710631, now seen corresponding path program 1 times [2020-10-09 15:21:14,364 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-10-09 15:21:14,364 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [667179770] [2020-10-09 15:21:14,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 19 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with mathsat -unsat_core_generation=3 [2020-10-09 15:21:14,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 15:21:14,423 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-09 15:21:14,424 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-09 15:21:14,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 15:21:14,432 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-09 15:21:14,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 15:21:14,434 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [667179770] [2020-10-09 15:21:14,434 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-09 15:21:14,434 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2020-10-09 15:21:14,434 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127146690] [2020-10-09 15:21:14,435 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-09 15:21:14,435 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-10-09 15:21:14,438 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-09 15:21:14,438 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-09 15:21:14,519 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 114 [2020-10-09 15:21:14,519 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 114 transitions, 324 flow. Second operand 3 states. [2020-10-09 15:21:14,519 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-09 15:21:14,520 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 114 [2020-10-09 15:21:14,520 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand