/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-MCR.epf -i ../../../trunk/examples/svcomp/pthread-nondet/nondet-loop-bound-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-28 05:53:20,638 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-28 05:53:20,641 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-28 05:53:20,653 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-28 05:53:20,653 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-28 05:53:20,654 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-28 05:53:20,655 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-28 05:53:20,658 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-28 05:53:20,666 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-28 05:53:20,667 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-28 05:53:20,669 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-28 05:53:20,670 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-28 05:53:20,670 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-28 05:53:20,671 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-28 05:53:20,674 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-28 05:53:20,675 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-28 05:53:20,677 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-28 05:53:20,681 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-28 05:53:20,683 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-28 05:53:20,688 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-28 05:53:20,692 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-28 05:53:20,694 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-28 05:53:20,695 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-28 05:53:20,696 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-28 05:53:20,699 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-28 05:53:20,703 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-28 05:53:20,705 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-28 05:53:20,706 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-28 05:53:20,707 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-28 05:53:20,709 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-28 05:53:20,709 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-28 05:53:20,710 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-28 05:53:20,710 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-28 05:53:20,710 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-28 05:53:20,711 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-28 05:53:20,712 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-28 05:53:20,712 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-MCR.epf [2019-12-28 05:53:20,742 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-28 05:53:20,742 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-28 05:53:20,746 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-28 05:53:20,747 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-28 05:53:20,747 INFO L138 SettingsManager]: * Use SBE=true [2019-12-28 05:53:20,747 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-28 05:53:20,747 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-28 05:53:20,748 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-28 05:53:20,748 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-28 05:53:20,748 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-28 05:53:20,748 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-28 05:53:20,748 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-28 05:53:20,748 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-28 05:53:20,751 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-28 05:53:20,751 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-28 05:53:20,751 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-28 05:53:20,751 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-28 05:53:20,751 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-28 05:53:20,752 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-28 05:53:20,752 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-28 05:53:20,752 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-28 05:53:20,752 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-28 05:53:20,753 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-28 05:53:20,753 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-28 05:53:20,753 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-28 05:53:20,753 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-28 05:53:20,753 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-28 05:53:20,754 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2019-12-28 05:53:20,754 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2019-12-28 05:53:20,754 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-28 05:53:20,754 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2019-12-28 05:53:20,755 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-28 05:53:21,016 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-28 05:53:21,029 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-28 05:53:21,032 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-28 05:53:21,034 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-28 05:53:21,034 INFO L275 PluginConnector]: CDTParser initialized [2019-12-28 05:53:21,035 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-nondet/nondet-loop-bound-1.i [2019-12-28 05:53:21,094 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f5cd0c99d/c03fdff316fb4329a0c7419e8e0650ad/FLAG568c51b0e [2019-12-28 05:53:21,645 INFO L306 CDTParser]: Found 1 translation units. [2019-12-28 05:53:21,646 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-nondet/nondet-loop-bound-1.i [2019-12-28 05:53:21,670 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f5cd0c99d/c03fdff316fb4329a0c7419e8e0650ad/FLAG568c51b0e [2019-12-28 05:53:21,933 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f5cd0c99d/c03fdff316fb4329a0c7419e8e0650ad [2019-12-28 05:53:21,943 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-28 05:53:21,945 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-28 05:53:21,950 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-28 05:53:21,950 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-28 05:53:21,953 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-28 05:53:21,954 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 05:53:21" (1/1) ... [2019-12-28 05:53:21,958 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ba2f740 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:53:21, skipping insertion in model container [2019-12-28 05:53:21,959 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 05:53:21" (1/1) ... [2019-12-28 05:53:21,967 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-28 05:53:22,023 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-28 05:53:22,480 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-28 05:53:22,496 INFO L203 MainTranslator]: Completed pre-run [2019-12-28 05:53:22,548 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-28 05:53:22,623 INFO L208 MainTranslator]: Completed translation [2019-12-28 05:53:22,624 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:53:22 WrapperNode [2019-12-28 05:53:22,624 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-28 05:53:22,625 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-28 05:53:22,625 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-28 05:53:22,627 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-28 05:53:22,636 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:53:22" (1/1) ... [2019-12-28 05:53:22,660 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:53:22" (1/1) ... [2019-12-28 05:53:22,681 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-28 05:53:22,682 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-28 05:53:22,682 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-28 05:53:22,682 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-28 05:53:22,690 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:53:22" (1/1) ... [2019-12-28 05:53:22,690 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:53:22" (1/1) ... [2019-12-28 05:53:22,693 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:53:22" (1/1) ... [2019-12-28 05:53:22,693 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:53:22" (1/1) ... [2019-12-28 05:53:22,699 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:53:22" (1/1) ... [2019-12-28 05:53:22,703 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:53:22" (1/1) ... [2019-12-28 05:53:22,705 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:53:22" (1/1) ... [2019-12-28 05:53:22,708 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-28 05:53:22,708 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-28 05:53:22,708 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-28 05:53:22,709 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-28 05:53:22,709 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:53:22" (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 [2019-12-28 05:53:22,778 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2019-12-28 05:53:22,778 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2019-12-28 05:53:22,778 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2019-12-28 05:53:22,778 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2019-12-28 05:53:22,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-28 05:53:22,779 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-28 05:53:22,779 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-28 05:53:22,779 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-28 05:53:22,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-28 05:53:22,781 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-28 05:53:23,119 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-28 05:53:23,120 INFO L287 CfgBuilder]: Removed 7 assume(true) statements. [2019-12-28 05:53:23,121 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 05:53:23 BoogieIcfgContainer [2019-12-28 05:53:23,121 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-28 05:53:23,123 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-28 05:53:23,123 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-28 05:53:23,125 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-28 05:53:23,126 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.12 05:53:21" (1/3) ... [2019-12-28 05:53:23,127 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@198e8040 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 05:53:23, skipping insertion in model container [2019-12-28 05:53:23,127 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:53:22" (2/3) ... [2019-12-28 05:53:23,127 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@198e8040 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 05:53:23, skipping insertion in model container [2019-12-28 05:53:23,128 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 05:53:23" (3/3) ... [2019-12-28 05:53:23,129 INFO L109 eAbstractionObserver]: Analyzing ICFG nondet-loop-bound-1.i [2019-12-28 05:53:23,139 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-28 05:53:23,139 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-28 05:53:23,146 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-28 05:53:23,147 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-28 05:53:23,173 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:23,174 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:23,174 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:23,175 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:23,175 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:23,175 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:23,176 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:23,177 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:23,177 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:23,177 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:23,177 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:23,178 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:23,178 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:23,178 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:23,179 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:23,179 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:23,179 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:23,183 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:23,184 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:23,184 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:23,184 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:23,184 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:23,189 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:23,190 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:23,190 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:23,190 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:23,190 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:23,191 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:23,203 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-28 05:53:23,219 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-28 05:53:23,219 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-28 05:53:23,220 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-28 05:53:23,220 INFO L376 AbstractCegarLoop]: Backedges is MCR [2019-12-28 05:53:23,220 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-28 05:53:23,220 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-28 05:53:23,220 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-28 05:53:23,221 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-28 05:53:23,231 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 57 places, 53 transitions [2019-12-28 05:53:23,303 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1000 states. [2019-12-28 05:53:23,305 INFO L276 IsEmpty]: Start isEmpty. Operand 1000 states. [2019-12-28 05:53:23,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-12-28 05:53:23,315 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 05:53:23,316 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-28 05:53:23,316 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-28 05:53:23,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 05:53:23,323 INFO L82 PathProgramCache]: Analyzing trace with hash -545237580, now seen corresponding path program 1 times [2019-12-28 05:53:23,335 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 05:53:23,335 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064068232] [2019-12-28 05:53:23,336 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 05:53:23,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 05:53:23,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-28 05:53:23,660 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064068232] [2019-12-28 05:53:23,663 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 05:53:23,663 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-28 05:53:23,664 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [493148886] [2019-12-28 05:53:23,665 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 05:53:23,674 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 05:53:23,695 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 26 states and 25 transitions. [2019-12-28 05:53:23,696 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 05:53:23,700 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-28 05:53:23,701 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-28 05:53:23,701 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 05:53:23,715 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-28 05:53:23,716 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-12-28 05:53:23,718 INFO L87 Difference]: Start difference. First operand 1000 states. Second operand 6 states. [2019-12-28 05:53:23,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 05:53:23,889 INFO L93 Difference]: Finished difference Result 1006 states and 2468 transitions. [2019-12-28 05:53:23,890 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-12-28 05:53:23,892 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 25 [2019-12-28 05:53:23,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 05:53:23,950 INFO L225 Difference]: With dead ends: 1006 [2019-12-28 05:53:23,950 INFO L226 Difference]: Without dead ends: 678 [2019-12-28 05:53:23,952 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-12-28 05:53:23,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 678 states. [2019-12-28 05:53:24,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 678 to 646. [2019-12-28 05:53:24,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 646 states. [2019-12-28 05:53:24,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 646 states to 646 states and 1560 transitions. [2019-12-28 05:53:24,052 INFO L78 Accepts]: Start accepts. Automaton has 646 states and 1560 transitions. Word has length 25 [2019-12-28 05:53:24,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 05:53:24,053 INFO L462 AbstractCegarLoop]: Abstraction has 646 states and 1560 transitions. [2019-12-28 05:53:24,053 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-28 05:53:24,053 INFO L276 IsEmpty]: Start isEmpty. Operand 646 states and 1560 transitions. [2019-12-28 05:53:24,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-12-28 05:53:24,058 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 05:53:24,059 INFO L411 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-28 05:53:24,059 INFO L410 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-28 05:53:24,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 05:53:24,060 INFO L82 PathProgramCache]: Analyzing trace with hash -1722225356, now seen corresponding path program 1 times [2019-12-28 05:53:24,061 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 05:53:24,061 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477361579] [2019-12-28 05:53:24,062 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 05:53:24,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-28 05:53:24,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-28 05:53:24,185 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-28 05:53:24,186 INFO L476 BasicCegarLoop]: Counterexample might be feasible [2019-12-28 05:53:24,187 WARN L364 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2019-12-28 05:53:24,187 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2019-12-28 05:53:24,198 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:24,199 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:24,199 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:24,199 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:24,199 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:24,199 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:24,200 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:24,200 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:24,200 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:24,200 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:24,201 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:24,201 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:24,201 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:24,201 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:24,202 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:24,202 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:24,202 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:24,203 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:24,203 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:24,203 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:24,203 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:24,203 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:24,204 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:24,204 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:24,204 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:24,204 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:24,205 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:24,205 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:24,205 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:24,205 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:24,205 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:24,206 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:24,206 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:24,206 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:24,207 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:24,207 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:24,207 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:24,207 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:24,207 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:24,209 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:24,210 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:24,210 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:24,210 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:24,210 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:24,213 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:24,213 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:24,214 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:24,214 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:24,214 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:24,214 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:24,216 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:24,217 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:24,217 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:24,217 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:24,217 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:24,217 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:24,220 INFO L249 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2019-12-28 05:53:24,220 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-28 05:53:24,221 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-28 05:53:24,221 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-28 05:53:24,221 INFO L376 AbstractCegarLoop]: Backedges is MCR [2019-12-28 05:53:24,221 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-28 05:53:24,221 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-28 05:53:24,221 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-28 05:53:24,221 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-28 05:53:24,224 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 76 places, 69 transitions [2019-12-28 05:53:24,495 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 6130 states. [2019-12-28 05:53:24,495 INFO L276 IsEmpty]: Start isEmpty. Operand 6130 states. [2019-12-28 05:53:24,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-12-28 05:53:24,496 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 05:53:24,497 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-28 05:53:24,497 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 05:53:24,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 05:53:24,497 INFO L82 PathProgramCache]: Analyzing trace with hash -1186811608, now seen corresponding path program 1 times [2019-12-28 05:53:24,498 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 05:53:24,498 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431247419] [2019-12-28 05:53:24,498 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 05:53:24,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 05:53:24,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-28 05:53:24,584 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431247419] [2019-12-28 05:53:24,584 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 05:53:24,584 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-28 05:53:24,584 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [922553411] [2019-12-28 05:53:24,585 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 05:53:24,587 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 05:53:24,589 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 26 states and 25 transitions. [2019-12-28 05:53:24,589 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 05:53:24,590 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-28 05:53:24,590 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-28 05:53:24,590 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 05:53:24,590 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-28 05:53:24,591 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-12-28 05:53:24,591 INFO L87 Difference]: Start difference. First operand 6130 states. Second operand 6 states. [2019-12-28 05:53:24,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 05:53:24,905 INFO L93 Difference]: Finished difference Result 7222 states and 23490 transitions. [2019-12-28 05:53:24,905 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-12-28 05:53:24,906 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 25 [2019-12-28 05:53:24,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 05:53:24,955 INFO L225 Difference]: With dead ends: 7222 [2019-12-28 05:53:24,955 INFO L226 Difference]: Without dead ends: 5134 [2019-12-28 05:53:24,956 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-12-28 05:53:24,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5134 states. [2019-12-28 05:53:25,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5134 to 4786. [2019-12-28 05:53:25,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4786 states. [2019-12-28 05:53:25,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4786 states to 4786 states and 15490 transitions. [2019-12-28 05:53:25,174 INFO L78 Accepts]: Start accepts. Automaton has 4786 states and 15490 transitions. Word has length 25 [2019-12-28 05:53:25,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 05:53:25,174 INFO L462 AbstractCegarLoop]: Abstraction has 4786 states and 15490 transitions. [2019-12-28 05:53:25,174 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-28 05:53:25,175 INFO L276 IsEmpty]: Start isEmpty. Operand 4786 states and 15490 transitions. [2019-12-28 05:53:25,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-12-28 05:53:25,178 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 05:53:25,178 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-28 05:53:25,178 INFO L410 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 05:53:25,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 05:53:25,180 INFO L82 PathProgramCache]: Analyzing trace with hash -433353734, now seen corresponding path program 1 times [2019-12-28 05:53:25,180 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 05:53:25,181 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1898133945] [2019-12-28 05:53:25,181 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 05:53:25,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 05:53:25,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-28 05:53:25,328 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1898133945] [2019-12-28 05:53:25,329 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 05:53:25,329 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-12-28 05:53:25,330 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1449238176] [2019-12-28 05:53:25,330 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 05:53:25,335 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 05:53:25,339 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 44 states and 52 transitions. [2019-12-28 05:53:25,340 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 05:53:25,366 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 2 times. [2019-12-28 05:53:25,366 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-28 05:53:25,367 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 05:53:25,367 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-28 05:53:25,367 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-12-28 05:53:25,368 INFO L87 Difference]: Start difference. First operand 4786 states and 15490 transitions. Second operand 8 states. [2019-12-28 05:53:25,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 05:53:25,938 INFO L93 Difference]: Finished difference Result 6726 states and 20872 transitions. [2019-12-28 05:53:25,939 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2019-12-28 05:53:25,939 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 34 [2019-12-28 05:53:25,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 05:53:25,994 INFO L225 Difference]: With dead ends: 6726 [2019-12-28 05:53:25,995 INFO L226 Difference]: Without dead ends: 6134 [2019-12-28 05:53:25,997 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=120, Invalid=300, Unknown=0, NotChecked=0, Total=420 [2019-12-28 05:53:26,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6134 states. [2019-12-28 05:53:26,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6134 to 4028. [2019-12-28 05:53:26,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4028 states. [2019-12-28 05:53:26,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4028 states to 4028 states and 13063 transitions. [2019-12-28 05:53:26,187 INFO L78 Accepts]: Start accepts. Automaton has 4028 states and 13063 transitions. Word has length 34 [2019-12-28 05:53:26,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 05:53:26,188 INFO L462 AbstractCegarLoop]: Abstraction has 4028 states and 13063 transitions. [2019-12-28 05:53:26,188 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-28 05:53:26,188 INFO L276 IsEmpty]: Start isEmpty. Operand 4028 states and 13063 transitions. [2019-12-28 05:53:26,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-12-28 05:53:26,194 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 05:53:26,194 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-28 05:53:26,195 INFO L410 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 05:53:26,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 05:53:26,195 INFO L82 PathProgramCache]: Analyzing trace with hash -1363955682, now seen corresponding path program 1 times [2019-12-28 05:53:26,196 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 05:53:26,196 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788600016] [2019-12-28 05:53:26,196 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 05:53:26,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-28 05:53:26,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-28 05:53:26,248 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-28 05:53:26,249 INFO L476 BasicCegarLoop]: Counterexample might be feasible [2019-12-28 05:53:26,249 WARN L364 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2019-12-28 05:53:26,249 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2019-12-28 05:53:26,262 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:26,262 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:26,262 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:26,262 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:26,263 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:26,263 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:26,263 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:26,263 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:26,263 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:26,264 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:26,264 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:26,264 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:26,264 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:26,264 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:26,265 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:26,265 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:26,265 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:26,265 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:26,265 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:26,265 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:26,265 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:26,266 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:26,266 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:26,266 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:26,266 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:26,267 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:26,269 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:26,269 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:26,269 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:26,270 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:26,270 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:26,271 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:26,271 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:26,271 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:26,271 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:26,271 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:26,271 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:26,272 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:26,272 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:26,272 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:26,272 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:26,272 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:26,273 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:26,273 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:26,273 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:26,273 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:26,273 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:26,273 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:26,274 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:26,274 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:26,274 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:26,274 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:26,275 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:26,275 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:26,275 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:26,275 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:26,277 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:26,277 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:26,277 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:26,277 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:26,278 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:26,280 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:26,280 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:26,280 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:26,280 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:26,280 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:26,282 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:26,283 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:26,283 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:26,283 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:26,283 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:26,283 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:26,286 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:26,286 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:26,286 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:26,286 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:26,287 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:26,287 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:26,289 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:26,289 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:26,289 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:26,289 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:26,290 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:26,290 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:26,291 INFO L249 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2019-12-28 05:53:26,292 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-28 05:53:26,292 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-28 05:53:26,292 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-28 05:53:26,292 INFO L376 AbstractCegarLoop]: Backedges is MCR [2019-12-28 05:53:26,292 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-28 05:53:26,292 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-28 05:53:26,292 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-28 05:53:26,293 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-28 05:53:26,297 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 95 places, 85 transitions [2019-12-28 05:53:30,397 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 36910 states. [2019-12-28 05:53:30,397 INFO L276 IsEmpty]: Start isEmpty. Operand 36910 states. [2019-12-28 05:53:30,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-12-28 05:53:30,398 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 05:53:30,398 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-28 05:53:30,399 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 05:53:30,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 05:53:30,399 INFO L82 PathProgramCache]: Analyzing trace with hash 458727436, now seen corresponding path program 1 times [2019-12-28 05:53:30,400 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 05:53:30,400 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118318990] [2019-12-28 05:53:30,400 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 05:53:30,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 05:53:30,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-28 05:53:30,454 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1118318990] [2019-12-28 05:53:30,454 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 05:53:30,454 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-28 05:53:30,455 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [5643497] [2019-12-28 05:53:30,455 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 05:53:30,457 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 05:53:30,459 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 26 states and 25 transitions. [2019-12-28 05:53:30,459 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 05:53:30,459 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-28 05:53:30,459 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-28 05:53:30,460 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 05:53:30,460 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-28 05:53:30,460 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-12-28 05:53:30,460 INFO L87 Difference]: Start difference. First operand 36910 states. Second operand 6 states. [2019-12-28 05:53:31,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 05:53:31,084 INFO L93 Difference]: Finished difference Result 48046 states and 195962 transitions. [2019-12-28 05:53:31,084 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-12-28 05:53:31,085 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 25 [2019-12-28 05:53:31,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 05:53:31,292 INFO L225 Difference]: With dead ends: 48046 [2019-12-28 05:53:31,292 INFO L226 Difference]: Without dead ends: 34886 [2019-12-28 05:53:31,293 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-12-28 05:53:32,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34886 states. [2019-12-28 05:53:33,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34886 to 32146. [2019-12-28 05:53:33,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32146 states. [2019-12-28 05:53:33,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32146 states to 32146 states and 131030 transitions. [2019-12-28 05:53:33,736 INFO L78 Accepts]: Start accepts. Automaton has 32146 states and 131030 transitions. Word has length 25 [2019-12-28 05:53:33,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 05:53:33,736 INFO L462 AbstractCegarLoop]: Abstraction has 32146 states and 131030 transitions. [2019-12-28 05:53:33,737 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-28 05:53:33,737 INFO L276 IsEmpty]: Start isEmpty. Operand 32146 states and 131030 transitions. [2019-12-28 05:53:33,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-12-28 05:53:33,739 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 05:53:33,739 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-28 05:53:33,739 INFO L410 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 05:53:33,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 05:53:33,740 INFO L82 PathProgramCache]: Analyzing trace with hash -811555619, now seen corresponding path program 1 times [2019-12-28 05:53:33,741 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 05:53:33,741 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922874856] [2019-12-28 05:53:33,741 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 05:53:33,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 05:53:33,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-28 05:53:33,866 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922874856] [2019-12-28 05:53:33,867 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 05:53:33,867 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-12-28 05:53:33,867 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1787339892] [2019-12-28 05:53:33,867 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 05:53:33,871 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 05:53:33,876 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 44 states and 52 transitions. [2019-12-28 05:53:33,876 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 05:53:33,879 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 2 times. [2019-12-28 05:53:33,879 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-28 05:53:33,879 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 05:53:33,880 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-28 05:53:33,880 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-12-28 05:53:33,880 INFO L87 Difference]: Start difference. First operand 32146 states and 131030 transitions. Second operand 8 states. [2019-12-28 05:53:36,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 05:53:36,178 INFO L93 Difference]: Finished difference Result 55450 states and 215966 transitions. [2019-12-28 05:53:36,179 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2019-12-28 05:53:36,179 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 34 [2019-12-28 05:53:36,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 05:53:36,408 INFO L225 Difference]: With dead ends: 55450 [2019-12-28 05:53:36,409 INFO L226 Difference]: Without dead ends: 52042 [2019-12-28 05:53:36,410 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=120, Invalid=300, Unknown=0, NotChecked=0, Total=420 [2019-12-28 05:53:36,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52042 states. [2019-12-28 05:53:37,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52042 to 30648. [2019-12-28 05:53:37,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30648 states. [2019-12-28 05:53:37,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30648 states to 30648 states and 124237 transitions. [2019-12-28 05:53:37,812 INFO L78 Accepts]: Start accepts. Automaton has 30648 states and 124237 transitions. Word has length 34 [2019-12-28 05:53:37,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 05:53:37,813 INFO L462 AbstractCegarLoop]: Abstraction has 30648 states and 124237 transitions. [2019-12-28 05:53:37,813 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-28 05:53:37,813 INFO L276 IsEmpty]: Start isEmpty. Operand 30648 states and 124237 transitions. [2019-12-28 05:53:37,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2019-12-28 05:53:37,818 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 05:53:37,818 INFO L411 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-28 05:53:37,818 INFO L410 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 05:53:37,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 05:53:37,819 INFO L82 PathProgramCache]: Analyzing trace with hash 330402858, now seen corresponding path program 1 times [2019-12-28 05:53:37,819 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 05:53:37,819 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248141804] [2019-12-28 05:53:37,820 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 05:53:37,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 05:53:37,914 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-12-28 05:53:37,915 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248141804] [2019-12-28 05:53:37,915 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 05:53:37,916 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-12-28 05:53:37,916 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1964192279] [2019-12-28 05:53:37,916 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 05:53:37,921 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 05:53:37,929 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 58 states and 73 transitions. [2019-12-28 05:53:37,929 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 05:53:37,932 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 2 times. [2019-12-28 05:53:37,932 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-28 05:53:37,932 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 05:53:37,932 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-28 05:53:37,933 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-12-28 05:53:37,933 INFO L87 Difference]: Start difference. First operand 30648 states and 124237 transitions. Second operand 8 states. [2019-12-28 05:53:38,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 05:53:38,977 INFO L93 Difference]: Finished difference Result 55918 states and 216366 transitions. [2019-12-28 05:53:38,977 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2019-12-28 05:53:38,977 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 41 [2019-12-28 05:53:38,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 05:53:39,201 INFO L225 Difference]: With dead ends: 55918 [2019-12-28 05:53:39,201 INFO L226 Difference]: Without dead ends: 52446 [2019-12-28 05:53:39,201 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=120, Invalid=300, Unknown=0, NotChecked=0, Total=420 [2019-12-28 05:53:39,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52446 states. [2019-12-28 05:53:41,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52446 to 28812. [2019-12-28 05:53:41,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28812 states. [2019-12-28 05:53:41,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28812 states to 28812 states and 115895 transitions. [2019-12-28 05:53:41,991 INFO L78 Accepts]: Start accepts. Automaton has 28812 states and 115895 transitions. Word has length 41 [2019-12-28 05:53:41,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 05:53:41,992 INFO L462 AbstractCegarLoop]: Abstraction has 28812 states and 115895 transitions. [2019-12-28 05:53:41,992 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-28 05:53:41,992 INFO L276 IsEmpty]: Start isEmpty. Operand 28812 states and 115895 transitions. [2019-12-28 05:53:42,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2019-12-28 05:53:42,002 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 05:53:42,002 INFO L411 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-28 05:53:42,003 INFO L410 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 05:53:42,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 05:53:42,003 INFO L82 PathProgramCache]: Analyzing trace with hash 169292204, now seen corresponding path program 1 times [2019-12-28 05:53:42,004 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 05:53:42,004 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935185099] [2019-12-28 05:53:42,004 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 05:53:42,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 05:53:42,115 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-28 05:53:42,116 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1935185099] [2019-12-28 05:53:42,116 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [830603958] [2019-12-28 05:53:42,116 INFO L94 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 [2019-12-28 05:53:42,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 05:53:42,198 INFO L264 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 12 conjunts are in the unsatisfiable core [2019-12-28 05:53:42,208 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-28 05:53:42,358 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-28 05:53:42,397 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-28 05:53:42,397 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-28 05:53:42,397 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18 [2019-12-28 05:53:42,398 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1882483086] [2019-12-28 05:53:42,398 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 05:53:42,403 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 05:53:42,425 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 138 states and 265 transitions. [2019-12-28 05:53:42,425 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 05:53:42,429 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 4 times. [2019-12-28 05:53:42,429 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-12-28 05:53:42,429 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 05:53:42,429 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-12-28 05:53:42,430 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=255, Unknown=0, NotChecked=0, Total=306 [2019-12-28 05:53:42,430 INFO L87 Difference]: Start difference. First operand 28812 states and 115895 transitions. Second operand 10 states. [2019-12-28 05:53:44,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 05:53:44,146 INFO L93 Difference]: Finished difference Result 60118 states and 228798 transitions. [2019-12-28 05:53:44,146 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2019-12-28 05:53:44,147 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 45 [2019-12-28 05:53:44,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 05:53:44,300 INFO L225 Difference]: With dead ends: 60118 [2019-12-28 05:53:44,300 INFO L226 Difference]: Without dead ends: 58630 [2019-12-28 05:53:44,301 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 847 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=528, Invalid=2552, Unknown=0, NotChecked=0, Total=3080 [2019-12-28 05:53:44,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58630 states. [2019-12-28 05:53:45,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58630 to 28160. [2019-12-28 05:53:45,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28160 states. [2019-12-28 05:53:45,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28160 states to 28160 states and 113373 transitions. [2019-12-28 05:53:45,196 INFO L78 Accepts]: Start accepts. Automaton has 28160 states and 113373 transitions. Word has length 45 [2019-12-28 05:53:45,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 05:53:45,196 INFO L462 AbstractCegarLoop]: Abstraction has 28160 states and 113373 transitions. [2019-12-28 05:53:45,196 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-12-28 05:53:45,196 INFO L276 IsEmpty]: Start isEmpty. Operand 28160 states and 113373 transitions. [2019-12-28 05:53:45,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2019-12-28 05:53:45,204 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 05:53:45,205 INFO L411 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-28 05:53:45,674 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-28 05:53:45,675 INFO L410 AbstractCegarLoop]: === Iteration 5 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 05:53:45,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 05:53:45,675 INFO L82 PathProgramCache]: Analyzing trace with hash 1634131850, now seen corresponding path program 2 times [2019-12-28 05:53:45,676 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 05:53:45,677 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952912722] [2019-12-28 05:53:45,677 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 05:53:45,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 05:53:45,781 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-12-28 05:53:45,782 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952912722] [2019-12-28 05:53:45,782 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 05:53:45,782 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-12-28 05:53:45,783 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [352025322] [2019-12-28 05:53:45,783 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 05:53:45,788 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 05:53:45,804 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 110 states and 195 transitions. [2019-12-28 05:53:45,804 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 05:53:45,808 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 8 times. [2019-12-28 05:53:45,809 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-12-28 05:53:45,809 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 05:53:45,809 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-12-28 05:53:45,809 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2019-12-28 05:53:45,810 INFO L87 Difference]: Start difference. First operand 28160 states and 113373 transitions. Second operand 10 states. [2019-12-28 05:53:47,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 05:53:47,131 INFO L93 Difference]: Finished difference Result 59086 states and 224854 transitions. [2019-12-28 05:53:47,132 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2019-12-28 05:53:47,132 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 45 [2019-12-28 05:53:47,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 05:53:47,276 INFO L225 Difference]: With dead ends: 59086 [2019-12-28 05:53:47,276 INFO L226 Difference]: Without dead ends: 57454 [2019-12-28 05:53:47,278 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 686 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=487, Invalid=1769, Unknown=0, NotChecked=0, Total=2256 [2019-12-28 05:53:47,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57454 states. [2019-12-28 05:53:48,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57454 to 25152. [2019-12-28 05:53:48,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25152 states. [2019-12-28 05:53:48,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25152 states to 25152 states and 102287 transitions. [2019-12-28 05:53:48,438 INFO L78 Accepts]: Start accepts. Automaton has 25152 states and 102287 transitions. Word has length 45 [2019-12-28 05:53:48,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 05:53:48,438 INFO L462 AbstractCegarLoop]: Abstraction has 25152 states and 102287 transitions. [2019-12-28 05:53:48,438 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-12-28 05:53:48,438 INFO L276 IsEmpty]: Start isEmpty. Operand 25152 states and 102287 transitions. [2019-12-28 05:53:48,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2019-12-28 05:53:48,447 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 05:53:48,447 INFO L411 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-28 05:53:48,447 INFO L410 AbstractCegarLoop]: === Iteration 6 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 05:53:48,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 05:53:48,448 INFO L82 PathProgramCache]: Analyzing trace with hash -119237525, now seen corresponding path program 1 times [2019-12-28 05:53:48,448 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 05:53:48,449 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903903405] [2019-12-28 05:53:48,449 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 05:53:48,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-28 05:53:48,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-28 05:53:48,483 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-28 05:53:48,483 INFO L476 BasicCegarLoop]: Counterexample might be feasible [2019-12-28 05:53:48,483 WARN L364 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2019-12-28 05:53:48,483 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2019-12-28 05:53:48,495 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:48,495 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:48,495 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:48,495 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:48,496 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:48,496 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:48,496 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:48,496 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:48,496 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:48,497 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:48,497 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:48,497 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:48,497 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:48,497 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:48,497 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:48,497 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:48,498 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:48,498 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:48,498 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:48,498 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:48,498 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:48,498 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:48,498 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:48,499 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:48,499 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:48,499 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:48,499 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:48,499 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:48,500 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:48,500 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:48,500 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:48,500 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:48,500 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:48,500 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:48,500 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:48,501 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:48,501 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:48,501 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:48,501 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:48,501 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:48,501 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:48,502 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:48,502 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:48,502 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:48,502 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:48,502 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:48,502 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:48,503 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:48,503 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:48,503 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:48,503 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:48,503 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:48,503 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:48,504 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:48,504 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:48,504 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:48,504 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:48,504 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:48,505 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:48,505 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:48,505 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:48,505 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:48,505 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:48,505 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:48,505 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:48,506 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:48,506 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:48,506 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:48,506 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:48,507 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:48,507 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:48,507 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:48,507 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:48,523 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:48,523 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:48,524 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:48,524 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:48,524 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:48,525 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:48,525 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:48,526 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:48,526 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:48,526 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:48,527 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:48,527 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:48,528 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:48,528 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:48,528 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:48,529 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:48,530 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:48,530 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:48,530 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:48,530 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:48,530 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:48,531 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:48,531 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:48,531 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:48,531 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:48,532 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:48,532 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:48,534 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:48,534 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:48,534 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:48,534 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:48,534 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:48,535 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:48,536 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:48,536 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:48,537 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:48,537 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:48,537 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:48,537 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:53:48,538 INFO L249 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2019-12-28 05:53:48,538 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-28 05:53:48,539 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-28 05:53:48,539 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-28 05:53:48,539 INFO L376 AbstractCegarLoop]: Backedges is MCR [2019-12-28 05:53:48,539 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-28 05:53:48,539 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-28 05:53:48,539 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-28 05:53:48,539 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-28 05:53:48,541 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 114 places, 101 transitions [2019-12-28 05:55:37,641 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 221590 states. [2019-12-28 05:55:37,641 INFO L276 IsEmpty]: Start isEmpty. Operand 221590 states. [2019-12-28 05:55:37,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-12-28 05:55:37,642 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 05:55:37,642 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-28 05:55:37,642 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-28 05:55:37,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 05:55:37,643 INFO L82 PathProgramCache]: Analyzing trace with hash 96412256, now seen corresponding path program 1 times [2019-12-28 05:55:37,643 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 05:55:37,644 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [516819960] [2019-12-28 05:55:37,644 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 05:55:37,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 05:55:37,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-28 05:55:37,720 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [516819960] [2019-12-28 05:55:37,720 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 05:55:37,720 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-28 05:55:37,721 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [299010109] [2019-12-28 05:55:37,721 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 05:55:37,722 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 05:55:37,724 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 26 states and 25 transitions. [2019-12-28 05:55:37,724 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 05:55:37,724 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-28 05:55:37,724 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-28 05:55:37,725 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 05:55:37,725 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-28 05:55:37,725 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-12-28 05:55:37,725 INFO L87 Difference]: Start difference. First operand 221590 states. Second operand 6 states. [2019-12-28 05:55:47,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 05:55:47,397 INFO L93 Difference]: Finished difference Result 307102 states and 1510066 transitions. [2019-12-28 05:55:47,397 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-12-28 05:55:47,398 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 25 [2019-12-28 05:55:47,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 05:55:48,197 INFO L225 Difference]: With dead ends: 307102 [2019-12-28 05:55:48,198 INFO L226 Difference]: Without dead ends: 225462 [2019-12-28 05:55:48,198 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-12-28 05:55:51,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225462 states. [2019-12-28 05:55:57,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225462 to 206386. [2019-12-28 05:55:57,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 206386 states. [2019-12-28 05:56:09,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206386 states to 206386 states and 1016190 transitions. [2019-12-28 05:56:09,333 INFO L78 Accepts]: Start accepts. Automaton has 206386 states and 1016190 transitions. Word has length 25 [2019-12-28 05:56:09,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 05:56:09,333 INFO L462 AbstractCegarLoop]: Abstraction has 206386 states and 1016190 transitions. [2019-12-28 05:56:09,333 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-28 05:56:09,333 INFO L276 IsEmpty]: Start isEmpty. Operand 206386 states and 1016190 transitions. [2019-12-28 05:56:09,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-12-28 05:56:09,335 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 05:56:09,335 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-28 05:56:09,335 INFO L410 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-28 05:56:09,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 05:56:09,335 INFO L82 PathProgramCache]: Analyzing trace with hash -1447088652, now seen corresponding path program 1 times [2019-12-28 05:56:09,336 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 05:56:09,336 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142126440] [2019-12-28 05:56:09,336 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 05:56:09,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 05:56:09,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-28 05:56:09,422 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142126440] [2019-12-28 05:56:09,422 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 05:56:09,422 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-12-28 05:56:09,422 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1642234353] [2019-12-28 05:56:09,422 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 05:56:09,426 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 05:56:09,430 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 44 states and 52 transitions. [2019-12-28 05:56:09,430 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 05:56:09,434 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 2 times. [2019-12-28 05:56:09,435 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-28 05:56:09,435 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 05:56:09,435 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-28 05:56:09,435 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-12-28 05:56:09,435 INFO L87 Difference]: Start difference. First operand 206386 states and 1016190 transitions. Second operand 8 states. [2019-12-28 05:56:21,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 05:56:21,000 INFO L93 Difference]: Finished difference Result 395234 states and 1867854 transitions. [2019-12-28 05:56:21,000 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2019-12-28 05:56:21,000 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 34 [2019-12-28 05:56:21,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 05:56:22,270 INFO L225 Difference]: With dead ends: 395234 [2019-12-28 05:56:22,270 INFO L226 Difference]: Without dead ends: 373906 [2019-12-28 05:56:22,271 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=120, Invalid=300, Unknown=0, NotChecked=0, Total=420 [2019-12-28 05:56:27,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 373906 states. [2019-12-28 05:56:44,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 373906 to 209024. [2019-12-28 05:56:44,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 209024 states. [2019-12-28 05:56:46,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209024 states to 209024 states and 1021861 transitions. [2019-12-28 05:56:46,281 INFO L78 Accepts]: Start accepts. Automaton has 209024 states and 1021861 transitions. Word has length 34 [2019-12-28 05:56:46,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 05:56:46,281 INFO L462 AbstractCegarLoop]: Abstraction has 209024 states and 1021861 transitions. [2019-12-28 05:56:46,282 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-28 05:56:46,282 INFO L276 IsEmpty]: Start isEmpty. Operand 209024 states and 1021861 transitions. [2019-12-28 05:56:46,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2019-12-28 05:56:46,286 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 05:56:46,286 INFO L411 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-28 05:56:46,286 INFO L410 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-28 05:56:46,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 05:56:46,286 INFO L82 PathProgramCache]: Analyzing trace with hash -1585020680, now seen corresponding path program 1 times [2019-12-28 05:56:46,287 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 05:56:46,287 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461454026] [2019-12-28 05:56:46,287 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 05:56:46,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 05:56:46,354 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-12-28 05:56:46,354 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461454026] [2019-12-28 05:56:46,354 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 05:56:46,354 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-12-28 05:56:46,355 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [467737364] [2019-12-28 05:56:46,355 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 05:56:46,359 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 05:56:46,366 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 58 states and 73 transitions. [2019-12-28 05:56:46,366 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 05:56:46,367 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 2 times. [2019-12-28 05:56:46,368 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-28 05:56:46,368 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 05:56:46,368 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-28 05:56:46,368 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-12-28 05:56:46,368 INFO L87 Difference]: Start difference. First operand 209024 states and 1021861 transitions. Second operand 8 states. Received shutdown request... [2019-12-28 05:56:56,134 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2019-12-28 05:56:56,134 WARN L527 AbstractCegarLoop]: Verification canceled [2019-12-28 05:56:56,139 WARN L227 ceAbstractionStarter]: Timeout [2019-12-28 05:56:56,139 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.12 05:56:56 BasicIcfg [2019-12-28 05:56:56,139 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-28 05:56:56,142 INFO L168 Benchmark]: Toolchain (without parser) took 214196.26 ms. Allocated memory was 138.4 MB in the beginning and 4.9 GB in the end (delta: 4.7 GB). Free memory was 101.1 MB in the beginning and 2.8 GB in the end (delta: -2.7 GB). Peak memory consumption was 5.5 GB. Max. memory is 7.1 GB. [2019-12-28 05:56:56,142 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 138.4 MB. Free memory was 121.6 MB in the beginning and 121.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-12-28 05:56:56,143 INFO L168 Benchmark]: CACSL2BoogieTranslator took 675.03 ms. Allocated memory was 138.4 MB in the beginning and 202.9 MB in the end (delta: 64.5 MB). Free memory was 100.9 MB in the beginning and 162.6 MB in the end (delta: -61.8 MB). Peak memory consumption was 26.2 MB. Max. memory is 7.1 GB. [2019-12-28 05:56:56,144 INFO L168 Benchmark]: Boogie Procedure Inliner took 56.12 ms. Allocated memory is still 202.9 MB. Free memory was 162.6 MB in the beginning and 160.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-28 05:56:56,145 INFO L168 Benchmark]: Boogie Preprocessor took 26.46 ms. Allocated memory is still 202.9 MB. Free memory was 160.6 MB in the beginning and 159.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-12-28 05:56:56,145 INFO L168 Benchmark]: RCFGBuilder took 413.08 ms. Allocated memory is still 202.9 MB. Free memory was 158.7 MB in the beginning and 140.0 MB in the end (delta: 18.7 MB). Peak memory consumption was 18.7 MB. Max. memory is 7.1 GB. [2019-12-28 05:56:56,146 INFO L168 Benchmark]: TraceAbstraction took 213016.85 ms. Allocated memory was 202.9 MB in the beginning and 4.9 GB in the end (delta: 4.7 GB). Free memory was 139.3 MB in the beginning and 2.8 GB in the end (delta: -2.7 GB). Peak memory consumption was 5.5 GB. Max. memory is 7.1 GB. [2019-12-28 05:56:56,150 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 138.4 MB. Free memory was 121.6 MB in the beginning and 121.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 675.03 ms. Allocated memory was 138.4 MB in the beginning and 202.9 MB in the end (delta: 64.5 MB). Free memory was 100.9 MB in the beginning and 162.6 MB in the end (delta: -61.8 MB). Peak memory consumption was 26.2 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 56.12 ms. Allocated memory is still 202.9 MB. Free memory was 162.6 MB in the beginning and 160.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 26.46 ms. Allocated memory is still 202.9 MB. Free memory was 160.6 MB in the beginning and 159.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 413.08 ms. Allocated memory is still 202.9 MB. Free memory was 158.7 MB in the beginning and 140.0 MB in the end (delta: 18.7 MB). Peak memory consumption was 18.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 213016.85 ms. Allocated memory was 202.9 MB in the beginning and 4.9 GB in the end (delta: 4.7 GB). Free memory was 139.3 MB in the beginning and 2.8 GB in the end (delta: -2.7 GB). Peak memory consumption was 5.5 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 675]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 675). Cancelled while BasicCegarLoop was constructing difference of abstraction (209024states) and FLOYD_HOARE automaton (currently 20 states, 8 states before enhancement),while ReachableStatesComputation was computing reachable states (164176 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 51 locations, 1 error locations. Result: TIMEOUT, OverallTime: 187.5s, OverallIterations: 3, TraceHistogramMax: 2, AutomataDifference: 33.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 550 SDtfs, 1187 SDslu, 1921 SDs, 0 SdLazy, 611 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 55 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 165 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=221590occurred 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: 45.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 183958 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 100 NumberOfCodeBlocks, 100 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 97 ConstructedInterpolants, 0 QuantifiedInterpolants, 12524 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 3/3 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown