/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-SemanticLbe-MCR.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe037_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-27 18:53:27,549 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-27 18:53:27,551 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-27 18:53:27,563 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-27 18:53:27,563 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-27 18:53:27,564 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-27 18:53:27,566 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-27 18:53:27,568 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-27 18:53:27,570 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-27 18:53:27,570 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-27 18:53:27,571 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-27 18:53:27,573 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-27 18:53:27,573 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-27 18:53:27,574 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-27 18:53:27,575 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-27 18:53:27,576 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-27 18:53:27,577 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-27 18:53:27,578 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-27 18:53:27,579 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-27 18:53:27,581 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-27 18:53:27,583 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-27 18:53:27,583 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-27 18:53:27,585 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-27 18:53:27,585 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-27 18:53:27,588 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-27 18:53:27,590 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-27 18:53:27,591 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-27 18:53:27,592 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-27 18:53:27,593 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-27 18:53:27,594 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-27 18:53:27,594 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-27 18:53:27,595 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-27 18:53:27,595 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-27 18:53:27,595 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-27 18:53:27,596 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-27 18:53:27,596 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-27 18:53:27,597 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-SemanticLbe-MCR.epf [2019-12-27 18:53:27,611 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-27 18:53:27,611 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-27 18:53:27,613 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-27 18:53:27,613 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-27 18:53:27,613 INFO L138 SettingsManager]: * Use SBE=true [2019-12-27 18:53:27,613 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-27 18:53:27,613 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-27 18:53:27,614 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-27 18:53:27,614 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-27 18:53:27,614 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-27 18:53:27,614 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-27 18:53:27,614 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-27 18:53:27,615 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-27 18:53:27,615 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-27 18:53:27,615 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-27 18:53:27,615 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-27 18:53:27,615 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-27 18:53:27,616 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-27 18:53:27,616 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-27 18:53:27,616 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-27 18:53:27,616 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-27 18:53:27,616 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 18:53:27,617 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-27 18:53:27,617 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-27 18:53:27,617 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-27 18:53:27,617 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-27 18:53:27,617 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-27 18:53:27,618 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2019-12-27 18:53:27,618 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-27 18:53:27,618 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2019-12-27 18:53:27,618 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-27 18:53:27,890 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-27 18:53:27,903 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-27 18:53:27,907 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-27 18:53:27,908 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-27 18:53:27,909 INFO L275 PluginConnector]: CDTParser initialized [2019-12-27 18:53:27,909 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe037_tso.oepc.i [2019-12-27 18:53:27,971 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6d3e9d634/a0724592e6e74517aa5e59812692a57d/FLAG208ecf8f1 [2019-12-27 18:53:28,546 INFO L306 CDTParser]: Found 1 translation units. [2019-12-27 18:53:28,547 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe037_tso.oepc.i [2019-12-27 18:53:28,562 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6d3e9d634/a0724592e6e74517aa5e59812692a57d/FLAG208ecf8f1 [2019-12-27 18:53:28,819 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6d3e9d634/a0724592e6e74517aa5e59812692a57d [2019-12-27 18:53:28,827 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-27 18:53:28,829 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-27 18:53:28,830 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-27 18:53:28,831 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-27 18:53:28,834 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-27 18:53:28,835 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 06:53:28" (1/1) ... [2019-12-27 18:53:28,838 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59e5e7bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:53:28, skipping insertion in model container [2019-12-27 18:53:28,838 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 06:53:28" (1/1) ... [2019-12-27 18:53:28,846 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-27 18:53:28,901 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-27 18:53:29,440 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 18:53:29,456 INFO L203 MainTranslator]: Completed pre-run [2019-12-27 18:53:29,537 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 18:53:29,619 INFO L208 MainTranslator]: Completed translation [2019-12-27 18:53:29,620 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:53:29 WrapperNode [2019-12-27 18:53:29,620 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-27 18:53:29,621 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-27 18:53:29,621 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-27 18:53:29,621 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-27 18:53:29,631 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:53:29" (1/1) ... [2019-12-27 18:53:29,656 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:53:29" (1/1) ... [2019-12-27 18:53:29,681 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-27 18:53:29,681 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-27 18:53:29,681 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-27 18:53:29,681 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-27 18:53:29,689 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:53:29" (1/1) ... [2019-12-27 18:53:29,690 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:53:29" (1/1) ... [2019-12-27 18:53:29,692 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:53:29" (1/1) ... [2019-12-27 18:53:29,693 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:53:29" (1/1) ... [2019-12-27 18:53:29,699 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:53:29" (1/1) ... [2019-12-27 18:53:29,701 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:53:29" (1/1) ... [2019-12-27 18:53:29,703 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:53:29" (1/1) ... [2019-12-27 18:53:29,706 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-27 18:53:29,707 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-27 18:53:29,707 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-27 18:53:29,707 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-27 18:53:29,708 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:53:29" (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 [2019-12-27 18:53:29,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-27 18:53:29,778 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-27 18:53:29,778 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-27 18:53:29,779 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-27 18:53:29,779 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-27 18:53:29,779 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-27 18:53:29,780 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-27 18:53:29,780 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-27 18:53:29,781 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-27 18:53:29,781 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-27 18:53:29,781 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-27 18:53:29,782 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-27 18:53:29,782 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-27 18:53:29,783 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-27 18:53:30,151 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-27 18:53:30,152 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-27 18:53:30,153 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 06:53:30 BoogieIcfgContainer [2019-12-27 18:53:30,153 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-27 18:53:30,155 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-27 18:53:30,155 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-27 18:53:30,158 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-27 18:53:30,158 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.12 06:53:28" (1/3) ... [2019-12-27 18:53:30,159 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@620e3b0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 06:53:30, skipping insertion in model container [2019-12-27 18:53:30,160 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:53:29" (2/3) ... [2019-12-27 18:53:30,160 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@620e3b0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 06:53:30, skipping insertion in model container [2019-12-27 18:53:30,160 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 06:53:30" (3/3) ... [2019-12-27 18:53:30,162 INFO L109 eAbstractionObserver]: Analyzing ICFG safe037_tso.oepc.i [2019-12-27 18:53:30,172 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-27 18:53:30,173 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-27 18:53:30,181 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-27 18:53:30,182 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-27 18:53:30,209 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:53:30,210 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:53:30,210 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:53:30,210 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:53:30,211 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:53:30,211 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:53:30,212 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:53:30,212 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:53:30,212 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:53:30,212 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:53:30,213 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:53:30,213 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:53:30,213 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:53:30,214 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:53:30,214 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:53:30,214 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:53:30,215 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:53:30,215 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:53:30,219 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:53:30,219 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:53:30,220 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:53:30,220 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:53:30,232 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:53:30,232 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:53:30,232 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:53:30,233 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:53:30,235 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:53:30,236 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:53:30,236 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:53:30,236 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:53:30,254 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-27 18:53:30,276 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 18:53:30,276 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 18:53:30,276 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 18:53:30,277 INFO L376 AbstractCegarLoop]: Backedges is MCR [2019-12-27 18:53:30,277 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 18:53:30,277 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 18:53:30,277 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 18:53:30,277 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 18:53:30,290 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 64 places, 55 transitions [2019-12-27 18:53:30,291 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 64 places, 55 transitions [2019-12-27 18:53:30,333 INFO L132 PetriNetUnfolder]: 1/52 cut-off events. [2019-12-27 18:53:30,333 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 18:53:30,344 INFO L76 FinitePrefix]: Finished finitePrefix Result has 62 conditions, 52 events. 1/52 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 21 event pairs. 0/50 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-27 18:53:30,346 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 64 places, 55 transitions [2019-12-27 18:53:30,371 INFO L132 PetriNetUnfolder]: 1/52 cut-off events. [2019-12-27 18:53:30,372 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 18:53:30,374 INFO L76 FinitePrefix]: Finished finitePrefix Result has 62 conditions, 52 events. 1/52 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 21 event pairs. 0/50 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-27 18:53:30,375 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 450 [2019-12-27 18:53:30,377 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-27 18:53:31,919 WARN L192 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 51 [2019-12-27 18:53:31,974 INFO L206 etLargeBlockEncoding]: Checked pairs total: 425 [2019-12-27 18:53:31,975 INFO L214 etLargeBlockEncoding]: Total number of compositions: 45 [2019-12-27 18:53:31,978 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 22 places, 17 transitions [2019-12-27 18:53:31,987 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 54 states. [2019-12-27 18:53:31,989 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states. [2019-12-27 18:53:31,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-27 18:53:31,995 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 18:53:31,996 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 18:53:31,996 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 18:53:32,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 18:53:32,001 INFO L82 PathProgramCache]: Analyzing trace with hash 1086085239, now seen corresponding path program 1 times [2019-12-27 18:53:32,010 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 18:53:32,010 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054247426] [2019-12-27 18:53:32,010 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 18:53:32,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 18:53:32,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 18:53:32,278 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054247426] [2019-12-27 18:53:32,280 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 18:53:32,280 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 18:53:32,281 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1761601715] [2019-12-27 18:53:32,283 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 18:53:32,293 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 18:53:32,310 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 9 states and 8 transitions. [2019-12-27 18:53:32,310 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 18:53:32,314 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 18:53:32,315 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 18:53:32,315 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 18:53:32,331 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 18:53:32,333 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 18:53:32,335 INFO L87 Difference]: Start difference. First operand 54 states. Second operand 4 states. [2019-12-27 18:53:32,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 18:53:32,393 INFO L93 Difference]: Finished difference Result 58 states and 113 transitions. [2019-12-27 18:53:32,393 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 18:53:32,394 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2019-12-27 18:53:32,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 18:53:32,404 INFO L225 Difference]: With dead ends: 58 [2019-12-27 18:53:32,404 INFO L226 Difference]: Without dead ends: 36 [2019-12-27 18:53:32,405 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-27 18:53:32,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-12-27 18:53:32,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2019-12-27 18:53:32,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2019-12-27 18:53:32,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 68 transitions. [2019-12-27 18:53:32,446 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 68 transitions. Word has length 8 [2019-12-27 18:53:32,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 18:53:32,447 INFO L462 AbstractCegarLoop]: Abstraction has 36 states and 68 transitions. [2019-12-27 18:53:32,447 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 18:53:32,447 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 68 transitions. [2019-12-27 18:53:32,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-27 18:53:32,448 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 18:53:32,448 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 18:53:32,449 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 18:53:32,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 18:53:32,449 INFO L82 PathProgramCache]: Analyzing trace with hash -744608244, now seen corresponding path program 1 times [2019-12-27 18:53:32,449 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 18:53:32,450 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287292468] [2019-12-27 18:53:32,450 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 18:53:32,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 18:53:32,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 18:53:32,592 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1287292468] [2019-12-27 18:53:32,592 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 18:53:32,592 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 18:53:32,592 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [594014988] [2019-12-27 18:53:32,593 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 18:53:32,594 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 18:53:32,597 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 14 states and 17 transitions. [2019-12-27 18:53:32,597 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 18:53:32,598 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 18:53:32,600 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-27 18:53:32,600 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 18:53:32,600 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-27 18:53:32,601 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-27 18:53:32,601 INFO L87 Difference]: Start difference. First operand 36 states and 68 transitions. Second operand 5 states. [2019-12-27 18:53:32,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 18:53:32,659 INFO L93 Difference]: Finished difference Result 37 states and 62 transitions. [2019-12-27 18:53:32,660 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-27 18:53:32,660 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2019-12-27 18:53:32,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 18:53:32,661 INFO L225 Difference]: With dead ends: 37 [2019-12-27 18:53:32,661 INFO L226 Difference]: Without dead ends: 30 [2019-12-27 18:53:32,662 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-12-27 18:53:32,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2019-12-27 18:53:32,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2019-12-27 18:53:32,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2019-12-27 18:53:32,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 50 transitions. [2019-12-27 18:53:32,667 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 50 transitions. Word has length 9 [2019-12-27 18:53:32,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 18:53:32,668 INFO L462 AbstractCegarLoop]: Abstraction has 30 states and 50 transitions. [2019-12-27 18:53:32,668 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-27 18:53:32,668 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 50 transitions. [2019-12-27 18:53:32,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-27 18:53:32,669 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 18:53:32,669 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 18:53:32,669 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 18:53:32,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 18:53:32,670 INFO L82 PathProgramCache]: Analyzing trace with hash -1607968112, now seen corresponding path program 1 times [2019-12-27 18:53:32,670 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 18:53:32,670 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040531724] [2019-12-27 18:53:32,671 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 18:53:32,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 18:53:32,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 18:53:32,765 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1040531724] [2019-12-27 18:53:32,765 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 18:53:32,765 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 18:53:32,765 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [383923728] [2019-12-27 18:53:32,766 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 18:53:32,766 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 18:53:32,769 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 15 states and 18 transitions. [2019-12-27 18:53:32,770 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 18:53:32,770 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 18:53:32,770 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 18:53:32,771 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 18:53:32,772 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 18:53:32,773 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 18:53:32,773 INFO L87 Difference]: Start difference. First operand 30 states and 50 transitions. Second operand 4 states. [2019-12-27 18:53:32,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 18:53:32,801 INFO L93 Difference]: Finished difference Result 35 states and 54 transitions. [2019-12-27 18:53:32,801 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 18:53:32,801 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2019-12-27 18:53:32,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 18:53:32,803 INFO L225 Difference]: With dead ends: 35 [2019-12-27 18:53:32,803 INFO L226 Difference]: Without dead ends: 31 [2019-12-27 18:53:32,804 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-27 18:53:32,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2019-12-27 18:53:32,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 30. [2019-12-27 18:53:32,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2019-12-27 18:53:32,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 47 transitions. [2019-12-27 18:53:32,817 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 47 transitions. Word has length 10 [2019-12-27 18:53:32,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 18:53:32,817 INFO L462 AbstractCegarLoop]: Abstraction has 30 states and 47 transitions. [2019-12-27 18:53:32,817 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 18:53:32,817 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 47 transitions. [2019-12-27 18:53:32,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-27 18:53:32,818 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 18:53:32,818 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 18:53:32,818 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 18:53:32,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 18:53:32,822 INFO L82 PathProgramCache]: Analyzing trace with hash -1607961385, now seen corresponding path program 1 times [2019-12-27 18:53:32,823 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 18:53:32,823 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659992473] [2019-12-27 18:53:32,823 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 18:53:32,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 18:53:32,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 18:53:32,916 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659992473] [2019-12-27 18:53:32,917 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 18:53:32,917 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-27 18:53:32,917 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1290707317] [2019-12-27 18:53:32,917 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 18:53:32,918 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 18:53:32,919 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 17 states and 22 transitions. [2019-12-27 18:53:32,920 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 18:53:32,962 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 2 times. [2019-12-27 18:53:32,963 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-27 18:53:32,963 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 18:53:32,963 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-27 18:53:32,963 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-12-27 18:53:32,964 INFO L87 Difference]: Start difference. First operand 30 states and 47 transitions. Second operand 7 states. [2019-12-27 18:53:33,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 18:53:33,054 INFO L93 Difference]: Finished difference Result 28 states and 41 transitions. [2019-12-27 18:53:33,054 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-27 18:53:33,055 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 10 [2019-12-27 18:53:33,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 18:53:33,055 INFO L225 Difference]: With dead ends: 28 [2019-12-27 18:53:33,055 INFO L226 Difference]: Without dead ends: 16 [2019-12-27 18:53:33,056 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2019-12-27 18:53:33,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2019-12-27 18:53:33,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2019-12-27 18:53:33,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-12-27 18:53:33,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 19 transitions. [2019-12-27 18:53:33,060 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 19 transitions. Word has length 10 [2019-12-27 18:53:33,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 18:53:33,060 INFO L462 AbstractCegarLoop]: Abstraction has 16 states and 19 transitions. [2019-12-27 18:53:33,060 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-27 18:53:33,060 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 19 transitions. [2019-12-27 18:53:33,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-27 18:53:33,061 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 18:53:33,061 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 18:53:33,061 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 18:53:33,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 18:53:33,062 INFO L82 PathProgramCache]: Analyzing trace with hash 1627425577, now seen corresponding path program 1 times [2019-12-27 18:53:33,064 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 18:53:33,064 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51909121] [2019-12-27 18:53:33,064 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 18:53:33,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 18:53:33,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 18:53:33,129 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51909121] [2019-12-27 18:53:33,129 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 18:53:33,129 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 18:53:33,130 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1604084613] [2019-12-27 18:53:33,130 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 18:53:33,132 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 18:53:33,135 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 12 states and 11 transitions. [2019-12-27 18:53:33,135 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 18:53:33,135 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 18:53:33,135 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 18:53:33,136 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 18:53:33,136 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 18:53:33,136 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 18:53:33,136 INFO L87 Difference]: Start difference. First operand 16 states and 19 transitions. Second operand 4 states. [2019-12-27 18:53:33,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 18:53:33,155 INFO L93 Difference]: Finished difference Result 19 states and 21 transitions. [2019-12-27 18:53:33,156 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 18:53:33,156 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-27 18:53:33,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 18:53:33,157 INFO L225 Difference]: With dead ends: 19 [2019-12-27 18:53:33,157 INFO L226 Difference]: Without dead ends: 14 [2019-12-27 18:53:33,158 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-27 18:53:33,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2019-12-27 18:53:33,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2019-12-27 18:53:33,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2019-12-27 18:53:33,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2019-12-27 18:53:33,160 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 11 [2019-12-27 18:53:33,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 18:53:33,160 INFO L462 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions. [2019-12-27 18:53:33,161 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 18:53:33,161 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2019-12-27 18:53:33,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-27 18:53:33,161 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 18:53:33,161 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 18:53:33,163 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 18:53:33,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 18:53:33,164 INFO L82 PathProgramCache]: Analyzing trace with hash 1633797007, now seen corresponding path program 2 times [2019-12-27 18:53:33,164 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 18:53:33,165 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064926823] [2019-12-27 18:53:33,165 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 18:53:33,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 18:53:33,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 18:53:33,232 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064926823] [2019-12-27 18:53:33,232 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 18:53:33,232 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 18:53:33,232 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1897555779] [2019-12-27 18:53:33,232 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 18:53:33,237 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 18:53:33,240 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 14 states and 15 transitions. [2019-12-27 18:53:33,240 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 18:53:33,258 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 2 times. [2019-12-27 18:53:33,259 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-27 18:53:33,259 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 18:53:33,259 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-27 18:53:33,260 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-27 18:53:33,260 INFO L87 Difference]: Start difference. First operand 14 states and 15 transitions. Second operand 5 states. [2019-12-27 18:53:33,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 18:53:33,280 INFO L93 Difference]: Finished difference Result 13 states and 14 transitions. [2019-12-27 18:53:33,280 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 18:53:33,280 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2019-12-27 18:53:33,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 18:53:33,280 INFO L225 Difference]: With dead ends: 13 [2019-12-27 18:53:33,280 INFO L226 Difference]: Without dead ends: 0 [2019-12-27 18:53:33,281 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-12-27 18:53:33,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-27 18:53:33,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-27 18:53:33,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-27 18:53:33,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-27 18:53:33,282 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-12-27 18:53:33,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 18:53:33,282 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-27 18:53:33,282 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-27 18:53:33,282 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-27 18:53:33,282 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-27 18:53:33,286 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.12 06:53:33 BasicIcfg [2019-12-27 18:53:33,287 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-27 18:53:33,289 INFO L168 Benchmark]: Toolchain (without parser) took 4459.67 ms. Allocated memory was 144.7 MB in the beginning and 245.9 MB in the end (delta: 101.2 MB). Free memory was 101.1 MB in the beginning and 97.3 MB in the end (delta: 3.8 MB). Peak memory consumption was 105.0 MB. Max. memory is 7.1 GB. [2019-12-27 18:53:33,290 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 144.7 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2019-12-27 18:53:33,291 INFO L168 Benchmark]: CACSL2BoogieTranslator took 789.82 ms. Allocated memory was 144.7 MB in the beginning and 202.4 MB in the end (delta: 57.7 MB). Free memory was 100.7 MB in the beginning and 157.2 MB in the end (delta: -56.5 MB). Peak memory consumption was 20.2 MB. Max. memory is 7.1 GB. [2019-12-27 18:53:33,292 INFO L168 Benchmark]: Boogie Procedure Inliner took 60.30 ms. Allocated memory is still 202.4 MB. Free memory was 157.2 MB in the beginning and 155.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-27 18:53:33,292 INFO L168 Benchmark]: Boogie Preprocessor took 25.58 ms. Allocated memory is still 202.4 MB. Free memory was 155.1 MB in the beginning and 153.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2019-12-27 18:53:33,293 INFO L168 Benchmark]: RCFGBuilder took 446.29 ms. Allocated memory is still 202.4 MB. Free memory was 153.7 MB in the beginning and 132.9 MB in the end (delta: 20.9 MB). Peak memory consumption was 20.9 MB. Max. memory is 7.1 GB. [2019-12-27 18:53:33,294 INFO L168 Benchmark]: TraceAbstraction took 3132.25 ms. Allocated memory was 202.4 MB in the beginning and 245.9 MB in the end (delta: 43.5 MB). Free memory was 132.2 MB in the beginning and 97.3 MB in the end (delta: 34.9 MB). Peak memory consumption was 78.4 MB. Max. memory is 7.1 GB. [2019-12-27 18:53:33,298 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 144.7 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 789.82 ms. Allocated memory was 144.7 MB in the beginning and 202.4 MB in the end (delta: 57.7 MB). Free memory was 100.7 MB in the beginning and 157.2 MB in the end (delta: -56.5 MB). Peak memory consumption was 20.2 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 60.30 ms. Allocated memory is still 202.4 MB. Free memory was 157.2 MB in the beginning and 155.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 25.58 ms. Allocated memory is still 202.4 MB. Free memory was 155.1 MB in the beginning and 153.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 446.29 ms. Allocated memory is still 202.4 MB. Free memory was 153.7 MB in the beginning and 132.9 MB in the end (delta: 20.9 MB). Peak memory consumption was 20.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3132.25 ms. Allocated memory was 202.4 MB in the beginning and 245.9 MB in the end (delta: 43.5 MB). Free memory was 132.2 MB in the beginning and 97.3 MB in the end (delta: 34.9 MB). Peak memory consumption was 78.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.6s, 64 ProgramPointsBefore, 22 ProgramPointsAfterwards, 55 TransitionsBefore, 17 TransitionsAfterwards, 450 CoEnabledTransitionPairs, 6 FixpointIterations, 15 TrivialSequentialCompositions, 25 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 0 ChoiceCompositions, 236 VarBasedMoverChecksPositive, 9 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 10 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.1s, 0 MoverChecksTotal, 425 CheckedPairsTotal, 45 TotalNumberOfCompositions - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 55 locations, 1 error locations. Result: SAFE, OverallTime: 3.0s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 63 SDtfs, 65 SDslu, 83 SDs, 0 SdLazy, 63 SolverSat, 34 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 31 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=54occurred 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: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 59 NumberOfCodeBlocks, 59 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 53 ConstructedInterpolants, 0 QuantifiedInterpolants, 1341 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 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 proved your program to be correct! Received shutdown request...