/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/goblint-regression/28-race_reach_07-cond_racing2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-1d1d2b5 [2020-10-21 22:16:04,562 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-21 22:16:04,566 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-21 22:16:04,612 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-21 22:16:04,612 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-21 22:16:04,613 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-21 22:16:04,615 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-21 22:16:04,616 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-21 22:16:04,618 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-21 22:16:04,619 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-21 22:16:04,620 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-21 22:16:04,621 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-21 22:16:04,621 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-21 22:16:04,622 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-21 22:16:04,623 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-21 22:16:04,624 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-21 22:16:04,625 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-21 22:16:04,626 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-21 22:16:04,628 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-21 22:16:04,630 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-21 22:16:04,631 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-21 22:16:04,632 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-21 22:16:04,634 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-21 22:16:04,634 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-21 22:16:04,637 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-21 22:16:04,637 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-21 22:16:04,637 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-21 22:16:04,638 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-21 22:16:04,639 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-21 22:16:04,640 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-21 22:16:04,640 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-21 22:16:04,641 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-21 22:16:04,641 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-21 22:16:04,642 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-21 22:16:04,643 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-21 22:16:04,643 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-21 22:16:04,644 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-21 22:16:04,644 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-21 22:16:04,644 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-21 22:16:04,645 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-21 22:16:04,646 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-21 22:16:04,647 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-21 22:16:04,669 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-21 22:16:04,669 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-21 22:16:04,670 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-21 22:16:04,671 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-21 22:16:04,671 INFO L138 SettingsManager]: * Use SBE=true [2020-10-21 22:16:04,671 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-21 22:16:04,671 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-21 22:16:04,671 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-21 22:16:04,672 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-21 22:16:04,672 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-21 22:16:04,672 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-21 22:16:04,672 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-21 22:16:04,673 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-21 22:16:04,673 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-21 22:16:04,673 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-21 22:16:04,673 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-21 22:16:04,673 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-21 22:16:04,674 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-21 22:16:04,674 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-21 22:16:04,674 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-21 22:16:04,674 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-21 22:16:04,674 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-21 22:16:04,675 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-21 22:16:04,675 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-21 22:16:04,675 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-21 22:16:04,675 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-21 22:16:04,675 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-21 22:16:04,676 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-21 22:16:04,676 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-21 22:16:04,676 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-21 22:16:04,998 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-21 22:16:05,014 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-21 22:16:05,018 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-21 22:16:05,020 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-21 22:16:05,023 INFO L275 PluginConnector]: CDTParser initialized [2020-10-21 22:16:05,024 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/28-race_reach_07-cond_racing2.i [2020-10-21 22:16:05,109 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a34333c85/4d3b15e5b74740a39850a0aeafc98d4c/FLAG172ec3725 [2020-10-21 22:16:05,765 INFO L306 CDTParser]: Found 1 translation units. [2020-10-21 22:16:05,766 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_07-cond_racing2.i [2020-10-21 22:16:05,782 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a34333c85/4d3b15e5b74740a39850a0aeafc98d4c/FLAG172ec3725 [2020-10-21 22:16:05,993 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a34333c85/4d3b15e5b74740a39850a0aeafc98d4c [2020-10-21 22:16:06,002 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-21 22:16:06,011 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-21 22:16:06,013 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-21 22:16:06,013 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-21 22:16:06,017 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-21 22:16:06,018 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 10:16:05" (1/1) ... [2020-10-21 22:16:06,022 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@794019a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:16:06, skipping insertion in model container [2020-10-21 22:16:06,023 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 10:16:05" (1/1) ... [2020-10-21 22:16:06,031 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-21 22:16:06,081 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-21 22:16:06,679 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-21 22:16:06,695 INFO L203 MainTranslator]: Completed pre-run [2020-10-21 22:16:06,742 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-21 22:16:06,884 INFO L208 MainTranslator]: Completed translation [2020-10-21 22:16:06,885 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:16:06 WrapperNode [2020-10-21 22:16:06,885 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-21 22:16:06,886 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-21 22:16:06,886 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-21 22:16:06,887 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-21 22:16:06,896 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:16:06" (1/1) ... [2020-10-21 22:16:06,917 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:16:06" (1/1) ... [2020-10-21 22:16:06,945 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-21 22:16:06,945 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-21 22:16:06,946 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-21 22:16:06,946 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-21 22:16:06,956 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:16:06" (1/1) ... [2020-10-21 22:16:06,956 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:16:06" (1/1) ... [2020-10-21 22:16:06,960 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:16:06" (1/1) ... [2020-10-21 22:16:06,961 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:16:06" (1/1) ... [2020-10-21 22:16:06,970 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:16:06" (1/1) ... [2020-10-21 22:16:06,975 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:16:06" (1/1) ... [2020-10-21 22:16:06,978 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:16:06" (1/1) ... [2020-10-21 22:16:06,982 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-21 22:16:06,983 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-21 22:16:06,983 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-21 22:16:06,983 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-21 22:16:06,984 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:16:06" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-21 22:16:07,056 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-21 22:16:07,056 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-21 22:16:07,056 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-21 22:16:07,057 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-21 22:16:07,057 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2020-10-21 22:16:07,057 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2020-10-21 22:16:07,057 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2020-10-21 22:16:07,058 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-21 22:16:07,058 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-21 22:16:07,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-21 22:16:07,060 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-21 22:16:07,585 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-21 22:16:07,585 INFO L298 CfgBuilder]: Removed 18 assume(true) statements. [2020-10-21 22:16:07,587 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 10:16:07 BoogieIcfgContainer [2020-10-21 22:16:07,587 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-21 22:16:07,589 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-21 22:16:07,589 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-21 22:16:07,593 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-21 22:16:07,593 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.10 10:16:05" (1/3) ... [2020-10-21 22:16:07,594 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51bca335 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 10:16:07, skipping insertion in model container [2020-10-21 22:16:07,595 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:16:06" (2/3) ... [2020-10-21 22:16:07,595 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51bca335 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 10:16:07, skipping insertion in model container [2020-10-21 22:16:07,595 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 10:16:07" (3/3) ... [2020-10-21 22:16:07,597 INFO L111 eAbstractionObserver]: Analyzing ICFG 28-race_reach_07-cond_racing2.i [2020-10-21 22:16:07,609 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-21 22:16:07,609 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-21 22:16:07,617 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-21 22:16:07,618 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-21 22:16:07,648 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:07,648 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:07,648 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:07,648 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:07,649 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:07,649 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:07,649 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:07,650 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:07,650 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:07,650 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:07,651 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:07,651 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:07,651 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:07,651 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:07,652 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:07,652 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:07,665 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:07,666 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:07,670 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:07,670 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:07,670 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:07,670 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:07,671 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:07,671 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:07,671 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:07,671 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:07,671 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:07,680 INFO L149 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2020-10-21 22:16:07,693 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-10-21 22:16:07,714 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-21 22:16:07,714 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-21 22:16:07,714 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-21 22:16:07,714 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-21 22:16:07,714 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-21 22:16:07,714 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-21 22:16:07,715 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-21 22:16:07,715 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-21 22:16:07,728 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-21 22:16:07,731 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 109 places, 122 transitions, 252 flow [2020-10-21 22:16:07,733 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 109 places, 122 transitions, 252 flow [2020-10-21 22:16:07,735 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 109 places, 122 transitions, 252 flow [2020-10-21 22:16:07,808 INFO L129 PetriNetUnfolder]: 25/166 cut-off events. [2020-10-21 22:16:07,808 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2020-10-21 22:16:07,817 INFO L80 FinitePrefix]: Finished finitePrefix Result has 172 conditions, 166 events. 25/166 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 400 event pairs, 0 based on Foata normal form. 0/136 useless extension candidates. Maximal degree in co-relation 83. Up to 6 conditions per place. [2020-10-21 22:16:07,822 INFO L116 LiptonReduction]: Number of co-enabled transitions 2744 [2020-10-21 22:16:09,701 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-21 22:16:10,241 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 73 [2020-10-21 22:16:10,360 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 69 [2020-10-21 22:16:10,491 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-21 22:16:10,516 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-21 22:16:11,124 WARN L193 SmtUtils]: Spent 577.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 111 [2020-10-21 22:16:11,406 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-10-21 22:16:12,583 WARN L193 SmtUtils]: Spent 1.17 s on a formula simplification. DAG size of input: 161 DAG size of output: 159 [2020-10-21 22:16:13,122 WARN L193 SmtUtils]: Spent 532.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2020-10-21 22:16:13,132 INFO L131 LiptonReduction]: Checked pairs total: 4750 [2020-10-21 22:16:13,133 INFO L133 LiptonReduction]: Total number of compositions: 116 [2020-10-21 22:16:13,140 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 27 places, 35 transitions, 78 flow [2020-10-21 22:16:13,155 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 143 states. [2020-10-21 22:16:13,160 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states. [2020-10-21 22:16:13,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-10-21 22:16:13,166 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:16:13,167 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-10-21 22:16:13,168 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:16:13,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:16:13,173 INFO L82 PathProgramCache]: Analyzing trace with hash 15010797, now seen corresponding path program 1 times [2020-10-21 22:16:13,183 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:16:13,184 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1239731142] [2020-10-21 22:16:13,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:16:13,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:16:13,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:16:13,378 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1239731142] [2020-10-21 22:16:13,379 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:16:13,379 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-21 22:16:13,380 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156117339] [2020-10-21 22:16:13,385 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-21 22:16:13,385 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:16:13,403 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-21 22:16:13,404 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 22:16:13,407 INFO L87 Difference]: Start difference. First operand 143 states. Second operand 3 states. [2020-10-21 22:16:13,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:16:13,445 INFO L93 Difference]: Finished difference Result 137 states and 254 transitions. [2020-10-21 22:16:13,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-21 22:16:13,447 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-10-21 22:16:13,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:16:13,458 INFO L225 Difference]: With dead ends: 137 [2020-10-21 22:16:13,458 INFO L226 Difference]: Without dead ends: 73 [2020-10-21 22:16:13,460 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 22:16:13,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2020-10-21 22:16:13,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2020-10-21 22:16:13,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2020-10-21 22:16:13,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 126 transitions. [2020-10-21 22:16:13,503 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 126 transitions. Word has length 4 [2020-10-21 22:16:13,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:16:13,504 INFO L481 AbstractCegarLoop]: Abstraction has 73 states and 126 transitions. [2020-10-21 22:16:13,504 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-21 22:16:13,504 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 126 transitions. [2020-10-21 22:16:13,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-10-21 22:16:13,505 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:16:13,505 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2020-10-21 22:16:13,505 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-21 22:16:13,506 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:16:13,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:16:13,506 INFO L82 PathProgramCache]: Analyzing trace with hash 1457792440, now seen corresponding path program 1 times [2020-10-21 22:16:13,506 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:16:13,507 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374666395] [2020-10-21 22:16:13,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:16:13,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-21 22:16:13,574 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-21 22:16:13,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-21 22:16:13,632 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-21 22:16:13,669 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-21 22:16:13,670 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-21 22:16:13,671 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-21 22:16:13,673 WARN L371 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-21 22:16:13,673 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2020-10-21 22:16:13,681 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:13,682 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:13,682 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:13,682 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:13,682 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:13,683 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:13,683 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:13,683 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:13,683 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:13,684 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:13,684 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:13,684 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:13,684 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:13,684 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:13,685 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:13,685 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:13,685 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:13,685 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:13,686 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:13,686 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:13,686 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:13,686 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:13,686 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:13,687 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:13,687 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:13,687 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:13,687 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:13,688 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:13,688 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:13,688 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:13,688 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:13,688 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:13,689 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:13,689 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:13,689 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:13,689 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:13,690 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:13,690 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:13,691 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:13,691 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:13,691 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:13,691 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:13,691 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:13,691 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:13,692 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:13,694 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:13,695 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:13,695 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:13,695 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:13,695 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:13,696 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:13,696 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:13,696 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:13,696 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:13,699 INFO L149 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2020-10-21 22:16:13,700 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-10-21 22:16:13,700 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-21 22:16:13,700 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-21 22:16:13,700 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-21 22:16:13,700 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-21 22:16:13,701 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-21 22:16:13,701 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-21 22:16:13,701 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-21 22:16:13,701 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-21 22:16:13,704 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-21 22:16:13,704 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 134 places, 152 transitions, 322 flow [2020-10-21 22:16:13,705 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 134 places, 152 transitions, 322 flow [2020-10-21 22:16:13,705 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 134 places, 152 transitions, 322 flow [2020-10-21 22:16:13,762 INFO L129 PetriNetUnfolder]: 43/263 cut-off events. [2020-10-21 22:16:13,762 INFO L130 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2020-10-21 22:16:13,766 INFO L80 FinitePrefix]: Finished finitePrefix Result has 277 conditions, 263 events. 43/263 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 814 event pairs, 0 based on Foata normal form. 0/213 useless extension candidates. Maximal degree in co-relation 168. Up to 9 conditions per place. [2020-10-21 22:16:13,782 INFO L116 LiptonReduction]: Number of co-enabled transitions 7672 [2020-10-21 22:16:15,953 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-21 22:16:15,960 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-21 22:16:16,170 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 55 [2020-10-21 22:16:16,559 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-21 22:16:17,188 WARN L193 SmtUtils]: Spent 618.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 111 [2020-10-21 22:16:17,453 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-10-21 22:16:17,923 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-21 22:16:18,253 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-21 22:16:19,567 WARN L193 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 161 DAG size of output: 159 [2020-10-21 22:16:20,167 WARN L193 SmtUtils]: Spent 595.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2020-10-21 22:16:20,224 INFO L131 LiptonReduction]: Checked pairs total: 16922 [2020-10-21 22:16:20,224 INFO L133 LiptonReduction]: Total number of compositions: 136 [2020-10-21 22:16:20,225 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 45 places, 57 transitions, 132 flow [2020-10-21 22:16:20,354 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 2270 states. [2020-10-21 22:16:20,355 INFO L276 IsEmpty]: Start isEmpty. Operand 2270 states. [2020-10-21 22:16:20,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-10-21 22:16:20,355 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:16:20,355 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-10-21 22:16:20,356 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:16:20,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:16:20,356 INFO L82 PathProgramCache]: Analyzing trace with hash 24759347, now seen corresponding path program 1 times [2020-10-21 22:16:20,356 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:16:20,357 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009954490] [2020-10-21 22:16:20,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:16:20,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:16:20,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:16:20,462 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1009954490] [2020-10-21 22:16:20,462 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:16:20,462 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-21 22:16:20,463 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388311653] [2020-10-21 22:16:20,463 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-21 22:16:20,463 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:16:20,463 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-21 22:16:20,463 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 22:16:20,464 INFO L87 Difference]: Start difference. First operand 2270 states. Second operand 3 states. [2020-10-21 22:16:20,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:16:20,532 INFO L93 Difference]: Finished difference Result 2264 states and 6205 transitions. [2020-10-21 22:16:20,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-21 22:16:20,533 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-10-21 22:16:20,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:16:20,552 INFO L225 Difference]: With dead ends: 2264 [2020-10-21 22:16:20,552 INFO L226 Difference]: Without dead ends: 1239 [2020-10-21 22:16:20,553 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 22:16:20,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1239 states. [2020-10-21 22:16:20,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1239 to 1239. [2020-10-21 22:16:20,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1239 states. [2020-10-21 22:16:20,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1239 states to 1239 states and 3284 transitions. [2020-10-21 22:16:20,691 INFO L78 Accepts]: Start accepts. Automaton has 1239 states and 3284 transitions. Word has length 4 [2020-10-21 22:16:20,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:16:20,692 INFO L481 AbstractCegarLoop]: Abstraction has 1239 states and 3284 transitions. [2020-10-21 22:16:20,692 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-21 22:16:20,697 INFO L276 IsEmpty]: Start isEmpty. Operand 1239 states and 3284 transitions. [2020-10-21 22:16:20,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-21 22:16:20,698 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:16:20,698 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:16:20,699 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-21 22:16:20,701 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:16:20,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:16:20,702 INFO L82 PathProgramCache]: Analyzing trace with hash 273405002, now seen corresponding path program 1 times [2020-10-21 22:16:20,702 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:16:20,702 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296709425] [2020-10-21 22:16:20,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:16:20,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:16:20,763 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-21 22:16:20,763 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [296709425] [2020-10-21 22:16:20,763 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:16:20,764 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-21 22:16:20,764 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680350172] [2020-10-21 22:16:20,764 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-21 22:16:20,764 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:16:20,765 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-21 22:16:20,765 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 22:16:20,766 INFO L87 Difference]: Start difference. First operand 1239 states and 3284 transitions. Second operand 3 states. [2020-10-21 22:16:20,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:16:20,803 INFO L93 Difference]: Finished difference Result 1209 states and 3199 transitions. [2020-10-21 22:16:20,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-21 22:16:20,804 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-10-21 22:16:20,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:16:20,812 INFO L225 Difference]: With dead ends: 1209 [2020-10-21 22:16:20,813 INFO L226 Difference]: Without dead ends: 1209 [2020-10-21 22:16:20,814 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 22:16:20,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1209 states. [2020-10-21 22:16:20,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1209 to 1209. [2020-10-21 22:16:20,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1209 states. [2020-10-21 22:16:20,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1209 states to 1209 states and 3199 transitions. [2020-10-21 22:16:20,856 INFO L78 Accepts]: Start accepts. Automaton has 1209 states and 3199 transitions. Word has length 8 [2020-10-21 22:16:20,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:16:20,857 INFO L481 AbstractCegarLoop]: Abstraction has 1209 states and 3199 transitions. [2020-10-21 22:16:20,857 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-21 22:16:20,857 INFO L276 IsEmpty]: Start isEmpty. Operand 1209 states and 3199 transitions. [2020-10-21 22:16:20,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-21 22:16:20,859 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:16:20,859 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2020-10-21 22:16:20,859 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-21 22:16:20,860 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:16:20,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:16:20,860 INFO L82 PathProgramCache]: Analyzing trace with hash 117884409, now seen corresponding path program 1 times [2020-10-21 22:16:20,860 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:16:20,861 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275801536] [2020-10-21 22:16:20,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:16:20,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-21 22:16:20,909 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-21 22:16:20,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-21 22:16:20,940 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-21 22:16:20,956 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-21 22:16:20,957 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-21 22:16:20,957 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-21 22:16:20,958 WARN L371 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-21 22:16:20,959 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2020-10-21 22:16:20,970 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:20,971 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:20,971 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:20,971 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:20,971 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:20,971 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:20,972 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:20,972 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:20,972 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:20,972 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:20,972 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:20,972 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:20,973 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:20,973 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:20,973 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:20,973 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:20,973 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:20,973 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:20,975 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:20,975 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:20,975 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:20,975 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:20,975 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:20,975 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:20,975 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:20,976 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:20,976 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:20,976 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:20,976 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:20,976 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:20,976 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:20,977 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:20,977 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:20,977 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:20,977 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:20,977 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:20,978 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:20,978 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:20,978 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:20,979 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:20,979 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:20,979 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:20,979 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:20,979 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:20,979 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:20,980 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:20,980 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:20,980 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:20,980 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:20,980 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:20,980 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:20,981 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:20,981 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:20,981 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:20,982 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:20,982 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:20,982 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:20,982 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:20,982 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:20,982 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:20,983 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:20,983 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:20,983 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:20,984 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:20,985 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:20,985 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:20,985 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:20,985 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:20,985 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:20,985 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:20,986 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:20,986 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:20,989 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:20,990 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:20,990 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:20,990 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:20,990 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:20,991 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:20,991 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:20,991 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:20,991 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:20,994 INFO L149 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2020-10-21 22:16:20,994 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-10-21 22:16:20,995 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-21 22:16:20,995 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-21 22:16:20,995 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-21 22:16:20,995 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-21 22:16:20,995 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-21 22:16:20,995 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-21 22:16:20,995 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-21 22:16:20,995 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-21 22:16:20,998 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-21 22:16:20,998 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 159 places, 182 transitions, 394 flow [2020-10-21 22:16:20,998 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 159 places, 182 transitions, 394 flow [2020-10-21 22:16:20,998 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 159 places, 182 transitions, 394 flow [2020-10-21 22:16:21,060 INFO L129 PetriNetUnfolder]: 66/391 cut-off events. [2020-10-21 22:16:21,060 INFO L130 PetriNetUnfolder]: For 19/19 co-relation queries the response was YES. [2020-10-21 22:16:21,066 INFO L80 FinitePrefix]: Finished finitePrefix Result has 419 conditions, 391 events. 66/391 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1373 event pairs, 1 based on Foata normal form. 0/317 useless extension candidates. Maximal degree in co-relation 271. Up to 16 conditions per place. [2020-10-21 22:16:21,087 INFO L116 LiptonReduction]: Number of co-enabled transitions 14112 [2020-10-21 22:16:24,030 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-21 22:16:24,039 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-21 22:16:24,051 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-21 22:16:24,059 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-21 22:16:24,745 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-21 22:16:24,904 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-21 22:16:26,146 WARN L193 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 150 DAG size of output: 142 [2020-10-21 22:16:26,561 WARN L193 SmtUtils]: Spent 405.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2020-10-21 22:16:27,776 WARN L193 SmtUtils]: Spent 1.20 s on a formula simplification. DAG size of input: 158 DAG size of output: 156 [2020-10-21 22:16:28,310 WARN L193 SmtUtils]: Spent 527.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2020-10-21 22:16:28,324 INFO L131 LiptonReduction]: Checked pairs total: 33552 [2020-10-21 22:16:28,324 INFO L133 LiptonReduction]: Total number of compositions: 153 [2020-10-21 22:16:28,324 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 59 places, 77 transitions, 184 flow [2020-10-21 22:16:31,201 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 28106 states. [2020-10-21 22:16:31,201 INFO L276 IsEmpty]: Start isEmpty. Operand 28106 states. [2020-10-21 22:16:31,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-10-21 22:16:31,202 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:16:31,202 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-10-21 22:16:31,202 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:16:31,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:16:31,203 INFO L82 PathProgramCache]: Analyzing trace with hash 36021927, now seen corresponding path program 1 times [2020-10-21 22:16:31,203 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:16:31,203 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098634724] [2020-10-21 22:16:31,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:16:31,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:16:31,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:16:31,232 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1098634724] [2020-10-21 22:16:31,232 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:16:31,232 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-21 22:16:31,232 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101160606] [2020-10-21 22:16:31,233 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-21 22:16:31,233 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:16:31,233 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-21 22:16:31,233 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 22:16:31,234 INFO L87 Difference]: Start difference. First operand 28106 states. Second operand 3 states. [2020-10-21 22:16:32,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:16:32,634 INFO L93 Difference]: Finished difference Result 28100 states and 101853 transitions. [2020-10-21 22:16:32,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-21 22:16:32,635 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-10-21 22:16:32,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:16:32,800 INFO L225 Difference]: With dead ends: 28100 [2020-10-21 22:16:32,801 INFO L226 Difference]: Without dead ends: 14919 [2020-10-21 22:16:32,801 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 22:16:33,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14919 states. [2020-10-21 22:16:33,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14919 to 14919. [2020-10-21 22:16:33,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14919 states. [2020-10-21 22:16:33,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14919 states to 14919 states and 53132 transitions. [2020-10-21 22:16:33,683 INFO L78 Accepts]: Start accepts. Automaton has 14919 states and 53132 transitions. Word has length 4 [2020-10-21 22:16:33,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:16:33,683 INFO L481 AbstractCegarLoop]: Abstraction has 14919 states and 53132 transitions. [2020-10-21 22:16:33,683 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-21 22:16:33,683 INFO L276 IsEmpty]: Start isEmpty. Operand 14919 states and 53132 transitions. [2020-10-21 22:16:33,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-21 22:16:33,685 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:16:33,685 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:16:33,686 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-21 22:16:33,686 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:16:33,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:16:33,686 INFO L82 PathProgramCache]: Analyzing trace with hash -2000214724, now seen corresponding path program 1 times [2020-10-21 22:16:33,686 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:16:33,687 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202132727] [2020-10-21 22:16:33,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:16:33,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:16:33,727 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-21 22:16:33,727 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1202132727] [2020-10-21 22:16:33,727 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:16:33,728 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-21 22:16:33,728 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258161347] [2020-10-21 22:16:33,728 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-21 22:16:33,728 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:16:33,729 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-21 22:16:33,729 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 22:16:33,729 INFO L87 Difference]: Start difference. First operand 14919 states and 53132 transitions. Second operand 3 states. [2020-10-21 22:16:34,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:16:34,026 INFO L93 Difference]: Finished difference Result 14764 states and 52547 transitions. [2020-10-21 22:16:34,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-21 22:16:34,027 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-10-21 22:16:34,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:16:34,097 INFO L225 Difference]: With dead ends: 14764 [2020-10-21 22:16:34,097 INFO L226 Difference]: Without dead ends: 14764 [2020-10-21 22:16:34,097 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 22:16:34,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14764 states. [2020-10-21 22:16:34,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14764 to 14764. [2020-10-21 22:16:34,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14764 states. [2020-10-21 22:16:34,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14764 states to 14764 states and 52547 transitions. [2020-10-21 22:16:34,821 INFO L78 Accepts]: Start accepts. Automaton has 14764 states and 52547 transitions. Word has length 8 [2020-10-21 22:16:34,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:16:34,821 INFO L481 AbstractCegarLoop]: Abstraction has 14764 states and 52547 transitions. [2020-10-21 22:16:34,821 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-21 22:16:34,822 INFO L276 IsEmpty]: Start isEmpty. Operand 14764 states and 52547 transitions. [2020-10-21 22:16:34,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-21 22:16:34,829 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:16:34,829 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:16:34,829 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-21 22:16:34,829 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:16:34,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:16:34,830 INFO L82 PathProgramCache]: Analyzing trace with hash -735674089, now seen corresponding path program 1 times [2020-10-21 22:16:34,830 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:16:34,833 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919517939] [2020-10-21 22:16:34,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:16:35,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:16:35,066 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-21 22:16:35,067 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1919517939] [2020-10-21 22:16:35,067 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:16:35,068 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-21 22:16:35,068 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829757672] [2020-10-21 22:16:35,068 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-21 22:16:35,068 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:16:35,069 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-21 22:16:35,069 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 22:16:35,069 INFO L87 Difference]: Start difference. First operand 14764 states and 52547 transitions. Second operand 3 states. [2020-10-21 22:16:35,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:16:35,182 INFO L93 Difference]: Finished difference Result 8822 states and 24746 transitions. [2020-10-21 22:16:35,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-21 22:16:35,182 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2020-10-21 22:16:35,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:16:35,209 INFO L225 Difference]: With dead ends: 8822 [2020-10-21 22:16:35,209 INFO L226 Difference]: Without dead ends: 8783 [2020-10-21 22:16:35,209 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 22:16:35,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8783 states. [2020-10-21 22:16:35,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8783 to 8617. [2020-10-21 22:16:35,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8617 states. [2020-10-21 22:16:35,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8617 states to 8617 states and 24318 transitions. [2020-10-21 22:16:35,499 INFO L78 Accepts]: Start accepts. Automaton has 8617 states and 24318 transitions. Word has length 13 [2020-10-21 22:16:35,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:16:35,499 INFO L481 AbstractCegarLoop]: Abstraction has 8617 states and 24318 transitions. [2020-10-21 22:16:35,500 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-21 22:16:35,500 INFO L276 IsEmpty]: Start isEmpty. Operand 8617 states and 24318 transitions. [2020-10-21 22:16:35,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-21 22:16:35,501 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:16:35,501 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:16:35,501 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-21 22:16:35,501 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:16:35,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:16:35,502 INFO L82 PathProgramCache]: Analyzing trace with hash -1460720826, now seen corresponding path program 1 times [2020-10-21 22:16:35,502 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:16:35,502 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415149830] [2020-10-21 22:16:35,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:16:35,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:16:35,542 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:16:35,543 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415149830] [2020-10-21 22:16:35,543 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1957628800] [2020-10-21 22:16:35,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-21 22:16:35,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:16:35,624 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-21 22:16:35,626 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-21 22:16:35,658 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:16:35,659 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-21 22:16:35,659 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 4 [2020-10-21 22:16:35,659 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184017564] [2020-10-21 22:16:35,660 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-21 22:16:35,660 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:16:35,660 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-21 22:16:35,660 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-10-21 22:16:35,660 INFO L87 Difference]: Start difference. First operand 8617 states and 24318 transitions. Second operand 5 states. [2020-10-21 22:16:35,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:16:35,712 INFO L93 Difference]: Finished difference Result 8599 states and 24287 transitions. [2020-10-21 22:16:35,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-21 22:16:35,713 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-10-21 22:16:35,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:16:35,739 INFO L225 Difference]: With dead ends: 8599 [2020-10-21 22:16:35,739 INFO L226 Difference]: Without dead ends: 8599 [2020-10-21 22:16:35,740 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-10-21 22:16:35,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8599 states. [2020-10-21 22:16:36,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8599 to 8599. [2020-10-21 22:16:36,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8599 states. [2020-10-21 22:16:36,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8599 states to 8599 states and 24287 transitions. [2020-10-21 22:16:36,036 INFO L78 Accepts]: Start accepts. Automaton has 8599 states and 24287 transitions. Word has length 14 [2020-10-21 22:16:36,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:16:36,037 INFO L481 AbstractCegarLoop]: Abstraction has 8599 states and 24287 transitions. [2020-10-21 22:16:36,037 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-21 22:16:36,037 INFO L276 IsEmpty]: Start isEmpty. Operand 8599 states and 24287 transitions. [2020-10-21 22:16:36,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-21 22:16:36,039 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:16:36,039 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1] [2020-10-21 22:16:36,253 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2020-10-21 22:16:36,254 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:16:36,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:16:36,254 INFO L82 PathProgramCache]: Analyzing trace with hash 12157480, now seen corresponding path program 1 times [2020-10-21 22:16:36,254 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:16:36,254 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734013347] [2020-10-21 22:16:36,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:16:36,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-21 22:16:36,268 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-21 22:16:36,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-21 22:16:36,282 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-21 22:16:36,290 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-21 22:16:36,290 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-21 22:16:36,291 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-21 22:16:36,291 WARN L371 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-21 22:16:36,292 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2020-10-21 22:16:36,301 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:36,301 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:36,301 WARN L313 ript$VariableManager]: TermVariabe t_funThread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:36,301 WARN L313 ript$VariableManager]: TermVariabe t_funThread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:36,302 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:36,302 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:36,302 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:36,302 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:36,302 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:36,303 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:36,303 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:36,303 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:36,303 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:36,303 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:36,303 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:36,304 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:36,304 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:36,304 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:36,304 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:36,304 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:36,304 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:36,304 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:36,305 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:36,305 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:36,305 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:36,305 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:36,305 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:36,305 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:36,306 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:36,306 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:36,306 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:36,306 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:36,306 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:36,306 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:36,307 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:36,307 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:36,307 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:36,307 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:36,307 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:36,307 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:36,308 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:36,308 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:36,308 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:36,308 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:36,308 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:36,308 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:36,308 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:36,309 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:36,309 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:36,309 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:36,309 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:36,309 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:36,309 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:36,310 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:36,310 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:36,310 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:36,310 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:36,310 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:36,310 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:36,311 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:36,311 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:36,311 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:36,311 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:36,311 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:36,311 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:36,312 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:36,312 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:36,312 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:36,312 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:36,312 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:36,312 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:36,313 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:36,313 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:36,313 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:36,313 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:36,314 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:36,314 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:36,314 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:36,314 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:36,314 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:36,314 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of4ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:36,316 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:36,316 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:36,316 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:36,316 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:36,317 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:36,317 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:36,317 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:36,317 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:36,317 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of4ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:36,318 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:36,319 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:36,319 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:36,319 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:36,319 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:36,319 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:36,319 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:36,319 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:36,320 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of4ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:36,321 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~post37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:36,321 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:36,321 WARN L313 ript$VariableManager]: TermVariabe t_funThread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:36,322 WARN L313 ript$VariableManager]: TermVariabe t_funThread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:36,322 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:36,322 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:36,322 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:36,322 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:36,322 WARN L313 ript$VariableManager]: TermVariabe |t_funThread4of4ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:16:36,326 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2020-10-21 22:16:36,326 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-10-21 22:16:36,327 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-21 22:16:36,327 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-21 22:16:36,327 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-21 22:16:36,327 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-21 22:16:36,327 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-21 22:16:36,327 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-21 22:16:36,327 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-21 22:16:36,327 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-21 22:16:36,329 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-21 22:16:36,330 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 184 places, 212 transitions, 468 flow [2020-10-21 22:16:36,330 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 184 places, 212 transitions, 468 flow [2020-10-21 22:16:36,330 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 184 places, 212 transitions, 468 flow [2020-10-21 22:16:36,424 INFO L129 PetriNetUnfolder]: 101/583 cut-off events. [2020-10-21 22:16:36,424 INFO L130 PetriNetUnfolder]: For 48/48 co-relation queries the response was YES. [2020-10-21 22:16:36,432 INFO L80 FinitePrefix]: Finished finitePrefix Result has 638 conditions, 583 events. 101/583 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 2335 event pairs, 6 based on Foata normal form. 0/477 useless extension candidates. Maximal degree in co-relation 411. Up to 32 conditions per place. [2020-10-21 22:16:36,464 INFO L116 LiptonReduction]: Number of co-enabled transitions 22288 [2020-10-21 22:16:36,632 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2020-10-21 22:16:40,121 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 59 [2020-10-21 22:16:40,505 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 88 [2020-10-21 22:16:40,647 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-10-21 22:16:40,981 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-21 22:16:40,992 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-21 22:16:41,427 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-21 22:16:41,455 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-21 22:16:42,007 WARN L193 SmtUtils]: Spent 542.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 121 [2020-10-21 22:16:42,259 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-21 22:16:42,263 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-21 22:16:42,338 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-21 22:16:42,406 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-21 22:16:42,551 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-21 22:16:42,569 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-21 22:16:42,684 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-21 22:16:42,697 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-21 22:16:42,766 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-21 22:16:42,788 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-21 22:16:42,820 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-21 22:16:42,852 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-21 22:16:42,870 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-21 22:16:42,928 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-21 22:16:42,947 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-21 22:16:43,373 WARN L193 SmtUtils]: Spent 398.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-21 22:16:43,717 WARN L193 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-21 22:16:44,905 WARN L193 SmtUtils]: Spent 1.18 s on a formula simplification. DAG size of input: 161 DAG size of output: 159 [2020-10-21 22:16:45,468 WARN L193 SmtUtils]: Spent 560.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2020-10-21 22:16:45,488 INFO L131 LiptonReduction]: Checked pairs total: 57027 [2020-10-21 22:16:45,489 INFO L133 LiptonReduction]: Total number of compositions: 174 [2020-10-21 22:16:45,489 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 73 places, 96 transitions, 236 flow Received shutdown request... [2020-10-21 22:20:24,346 WARN L546 AbstractCegarLoop]: Verification canceled [2020-10-21 22:20:24,349 WARN L235 ceAbstractionStarter]: Timeout [2020-10-21 22:20:24,349 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.10 10:20:24 BasicIcfg [2020-10-21 22:20:24,349 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-21 22:20:24,350 INFO L168 Benchmark]: Toolchain (without parser) took 258346.73 ms. Allocated memory was 147.3 MB in the beginning and 3.4 GB in the end (delta: 3.2 GB). Free memory was 101.1 MB in the beginning and 1.0 GB in the end (delta: -904.0 MB). Peak memory consumption was 2.9 GB. Max. memory is 7.1 GB. [2020-10-21 22:20:24,351 INFO L168 Benchmark]: CDTParser took 4.43 ms. Allocated memory is still 147.3 MB. Free memory was 122.0 MB in the beginning and 121.6 MB in the end (delta: 419.5 kB). Peak memory consumption was 419.5 kB. Max. memory is 7.1 GB. [2020-10-21 22:20:24,352 INFO L168 Benchmark]: CACSL2BoogieTranslator took 872.75 ms. Allocated memory was 147.3 MB in the beginning and 205.0 MB in the end (delta: 57.7 MB). Free memory was 100.3 MB in the beginning and 134.7 MB in the end (delta: -34.4 MB). Peak memory consumption was 32.5 MB. Max. memory is 7.1 GB. [2020-10-21 22:20:24,358 INFO L168 Benchmark]: Boogie Procedure Inliner took 58.98 ms. Allocated memory is still 205.0 MB. Free memory was 134.7 MB in the beginning and 132.8 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2020-10-21 22:20:24,359 INFO L168 Benchmark]: Boogie Preprocessor took 36.74 ms. Allocated memory is still 205.0 MB. Free memory was 132.8 MB in the beginning and 130.8 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2020-10-21 22:20:24,359 INFO L168 Benchmark]: RCFGBuilder took 604.98 ms. Allocated memory is still 205.0 MB. Free memory was 129.9 MB in the beginning and 99.3 MB in the end (delta: 30.6 MB). Peak memory consumption was 30.6 MB. Max. memory is 7.1 GB. [2020-10-21 22:20:24,360 INFO L168 Benchmark]: TraceAbstraction took 256760.32 ms. Allocated memory was 205.0 MB in the beginning and 3.4 GB in the end (delta: 3.1 GB). Free memory was 98.3 MB in the beginning and 1.0 GB in the end (delta: -906.7 MB). Peak memory consumption was 2.9 GB. Max. memory is 7.1 GB. [2020-10-21 22:20:24,364 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 4.43 ms. Allocated memory is still 147.3 MB. Free memory was 122.0 MB in the beginning and 121.6 MB in the end (delta: 419.5 kB). Peak memory consumption was 419.5 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 872.75 ms. Allocated memory was 147.3 MB in the beginning and 205.0 MB in the end (delta: 57.7 MB). Free memory was 100.3 MB in the beginning and 134.7 MB in the end (delta: -34.4 MB). Peak memory consumption was 32.5 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 58.98 ms. Allocated memory is still 205.0 MB. Free memory was 134.7 MB in the beginning and 132.8 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 36.74 ms. Allocated memory is still 205.0 MB. Free memory was 132.8 MB in the beginning and 130.8 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 604.98 ms. Allocated memory is still 205.0 MB. Free memory was 129.9 MB in the beginning and 99.3 MB in the end (delta: 30.6 MB). Peak memory consumption was 30.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 256760.32 ms. Allocated memory was 205.0 MB in the beginning and 3.4 GB in the end (delta: 3.1 GB). Free memory was 98.3 MB in the beginning and 1.0 GB in the end (delta: -906.7 MB). Peak memory consumption was 2.9 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 1746 VarBasedMoverChecksPositive, 103 VarBasedMoverChecksNegative, 71 SemBasedMoverChecksPositive, 32 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.4s, 135 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 5.3s, 109 PlacesBefore, 27 PlacesAfterwards, 122 TransitionsBefore, 35 TransitionsAfterwards, 2744 CoEnabledTransitionPairs, 7 FixpointIterations, 41 TrivialSequentialCompositions, 49 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 21 ConcurrentYvCompositions, 5 ChoiceCompositions, 116 TotalNumberOfCompositions, 4750 MoverChecksTotal - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 4729 VarBasedMoverChecksPositive, 338 VarBasedMoverChecksNegative, 285 SemBasedMoverChecksPositive, 53 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.8s, 484 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 6.5s, 134 PlacesBefore, 45 PlacesAfterwards, 152 TransitionsBefore, 57 TransitionsAfterwards, 7672 CoEnabledTransitionPairs, 7 FixpointIterations, 38 TrivialSequentialCompositions, 68 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 24 ConcurrentYvCompositions, 6 ChoiceCompositions, 136 TotalNumberOfCompositions, 16922 MoverChecksTotal - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 8348 VarBasedMoverChecksPositive, 673 VarBasedMoverChecksNegative, 599 SemBasedMoverChecksPositive, 74 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 1.3s, 913 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 7.3s, 159 PlacesBefore, 59 PlacesAfterwards, 182 TransitionsBefore, 77 TransitionsAfterwards, 14112 CoEnabledTransitionPairs, 7 FixpointIterations, 38 TrivialSequentialCompositions, 81 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 29 ConcurrentYvCompositions, 5 ChoiceCompositions, 153 TotalNumberOfCompositions, 33552 MoverChecksTotal - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 13026 VarBasedMoverChecksPositive, 1458 VarBasedMoverChecksNegative, 1342 SemBasedMoverChecksPositive, 116 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 2.7s, 1855 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 9.1s, 184 PlacesBefore, 73 PlacesAfterwards, 212 TransitionsBefore, 96 TransitionsAfterwards, 22288 CoEnabledTransitionPairs, 7 FixpointIterations, 38 TrivialSequentialCompositions, 99 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 32 ConcurrentYvCompositions, 5 ChoiceCompositions, 174 TotalNumberOfCompositions, 57027 MoverChecksTotal - TimeoutResultAtElement [Line: 921]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 921). Cancelled while BasicCegarLoop was constructing initial abstraction,while PetriNet2FiniteAutomaton was constructing automaton for Petri net that has has 73 places, 96 transitions, 236 flow. Already constructed 319132 states. Currently 18668 states in worklist.. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 106 locations, 1 error locations. Started 4 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 256.5s, OverallIterations: 10, TraceHistogramMax: 4, AutomataDifference: 2.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 250.3s, HoareTripleCheckerStatistics: 279 SDtfs, 144 SDslu, 242 SDs, 0 SdLazy, 82 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=28106occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.3s AutomataMinimizationTime, 7 MinimizatonAttempts, 166 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 101 NumberOfCodeBlocks, 101 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 61 ConstructedInterpolants, 0 QuantifiedInterpolants, 1277 SizeOfPredicates, 5 NumberOfNonLiveVariables, 129 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 8 InterpolantComputations, 6 PerfectInterpolantSequences, 3/5 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown