/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.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe027_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-27 14:21:24,633 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-27 14:21:24,636 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-27 14:21:24,653 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-27 14:21:24,653 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-27 14:21:24,654 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-27 14:21:24,656 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-27 14:21:24,657 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-27 14:21:24,659 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-27 14:21:24,660 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-27 14:21:24,661 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-27 14:21:24,662 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-27 14:21:24,662 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-27 14:21:24,663 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-27 14:21:24,664 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-27 14:21:24,665 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-27 14:21:24,666 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-27 14:21:24,667 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-27 14:21:24,668 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-27 14:21:24,670 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-27 14:21:24,672 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-27 14:21:24,673 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-27 14:21:24,674 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-27 14:21:24,675 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-27 14:21:24,677 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-27 14:21:24,680 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-27 14:21:24,681 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-27 14:21:24,682 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-27 14:21:24,682 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-27 14:21:24,683 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-27 14:21:24,684 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-27 14:21:24,686 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-27 14:21:24,686 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-27 14:21:24,686 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-27 14:21:24,689 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-27 14:21:24,689 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-27 14:21:24,691 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.epf [2019-12-27 14:21:24,715 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-27 14:21:24,715 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-27 14:21:24,717 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-27 14:21:24,717 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-27 14:21:24,718 INFO L138 SettingsManager]: * Use SBE=true [2019-12-27 14:21:24,718 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-27 14:21:24,718 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-27 14:21:24,718 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-27 14:21:24,718 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-27 14:21:24,719 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-27 14:21:24,720 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-27 14:21:24,720 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-27 14:21:24,720 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-27 14:21:24,721 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-27 14:21:24,721 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-27 14:21:24,721 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-27 14:21:24,721 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-27 14:21:24,721 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-27 14:21:24,722 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-27 14:21:24,722 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-27 14:21:24,722 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-27 14:21:24,722 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 14:21:24,723 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-27 14:21:24,723 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-27 14:21:24,723 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-27 14:21:24,723 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-27 14:21:24,723 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-27 14:21:24,724 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2019-12-27 14:21:24,724 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-27 14:21:24,724 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-27 14:21:25,020 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-27 14:21:25,039 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-27 14:21:25,042 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-27 14:21:25,043 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-27 14:21:25,043 INFO L275 PluginConnector]: CDTParser initialized [2019-12-27 14:21:25,044 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe027_pso.opt.i [2019-12-27 14:21:25,100 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3ac6f3631/9a95c3afd52b4b9db86bd1039709870c/FLAG302d0bbfd [2019-12-27 14:21:25,605 INFO L306 CDTParser]: Found 1 translation units. [2019-12-27 14:21:25,606 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe027_pso.opt.i [2019-12-27 14:21:25,629 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3ac6f3631/9a95c3afd52b4b9db86bd1039709870c/FLAG302d0bbfd [2019-12-27 14:21:25,972 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3ac6f3631/9a95c3afd52b4b9db86bd1039709870c [2019-12-27 14:21:25,981 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-27 14:21:25,982 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-27 14:21:25,983 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-27 14:21:25,984 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-27 14:21:25,987 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-27 14:21:25,988 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 02:21:25" (1/1) ... [2019-12-27 14:21:25,991 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46075e46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 02:21:25, skipping insertion in model container [2019-12-27 14:21:25,991 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 02:21:25" (1/1) ... [2019-12-27 14:21:25,999 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-27 14:21:26,050 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-27 14:21:26,609 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 14:21:26,621 INFO L203 MainTranslator]: Completed pre-run [2019-12-27 14:21:26,667 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 14:21:26,741 INFO L208 MainTranslator]: Completed translation [2019-12-27 14:21:26,742 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 02:21:26 WrapperNode [2019-12-27 14:21:26,742 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-27 14:21:26,743 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-27 14:21:26,743 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-27 14:21:26,743 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-27 14:21:26,752 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 02:21:26" (1/1) ... [2019-12-27 14:21:26,769 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 02:21:26" (1/1) ... [2019-12-27 14:21:26,793 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-27 14:21:26,794 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-27 14:21:26,794 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-27 14:21:26,794 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-27 14:21:26,803 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 02:21:26" (1/1) ... [2019-12-27 14:21:26,803 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 02:21:26" (1/1) ... [2019-12-27 14:21:26,807 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 02:21:26" (1/1) ... [2019-12-27 14:21:26,807 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 02:21:26" (1/1) ... [2019-12-27 14:21:26,814 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 02:21:26" (1/1) ... [2019-12-27 14:21:26,817 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 02:21:26" (1/1) ... [2019-12-27 14:21:26,819 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 02:21:26" (1/1) ... [2019-12-27 14:21:26,822 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-27 14:21:26,822 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-27 14:21:26,823 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-27 14:21:26,823 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-27 14:21:26,824 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 02:21:26" (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 14:21:26,880 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-27 14:21:26,881 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-27 14:21:26,881 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-27 14:21:26,881 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-27 14:21:26,881 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-27 14:21:26,882 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-27 14:21:26,882 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-27 14:21:26,882 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-27 14:21:26,882 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-27 14:21:26,882 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-27 14:21:26,882 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2019-12-27 14:21:26,883 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2019-12-27 14:21:26,883 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-27 14:21:26,883 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-27 14:21:26,883 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-27 14:21:26,885 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 14:21:27,286 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-27 14:21:27,287 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-27 14:21:27,288 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 02:21:27 BoogieIcfgContainer [2019-12-27 14:21:27,288 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-27 14:21:27,289 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-27 14:21:27,290 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-27 14:21:27,293 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-27 14:21:27,293 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.12 02:21:25" (1/3) ... [2019-12-27 14:21:27,294 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28b96f2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 02:21:27, skipping insertion in model container [2019-12-27 14:21:27,294 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 02:21:26" (2/3) ... [2019-12-27 14:21:27,295 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28b96f2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 02:21:27, skipping insertion in model container [2019-12-27 14:21:27,295 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 02:21:27" (3/3) ... [2019-12-27 14:21:27,296 INFO L109 eAbstractionObserver]: Analyzing ICFG safe027_pso.opt.i [2019-12-27 14:21:27,305 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-27 14:21:27,306 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-27 14:21:27,312 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-27 14:21:27,312 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-27 14:21:27,344 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:21:27,344 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:21:27,344 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:21:27,345 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:21:27,345 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:21:27,345 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:21:27,346 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:21:27,346 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:21:27,346 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:21:27,346 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:21:27,347 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:21:27,347 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:21:27,347 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:21:27,347 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:21:27,348 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:21:27,348 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:21:27,348 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:21:27,348 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:21:27,349 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:21:27,349 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:21:27,349 WARN L315 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:21:27,350 WARN L315 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:21:27,350 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:21:27,350 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:21:27,354 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:21:27,354 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:21:27,355 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:21:27,355 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:21:27,360 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:21:27,361 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:21:27,361 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:21:27,361 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:21:27,367 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:21:27,368 WARN L315 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:21:27,368 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:21:27,368 WARN L315 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:21:27,378 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:21:27,379 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:21:27,379 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:21:27,379 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:21:27,396 INFO L249 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2019-12-27 14:21:27,412 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 14:21:27,412 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 14:21:27,412 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 14:21:27,413 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-27 14:21:27,413 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 14:21:27,413 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 14:21:27,413 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 14:21:27,413 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 14:21:27,423 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 77 places, 65 transitions [2019-12-27 14:21:27,727 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 5473 states. [2019-12-27 14:21:27,730 INFO L276 IsEmpty]: Start isEmpty. Operand 5473 states. [2019-12-27 14:21:27,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2019-12-27 14:21:27,756 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 14:21:27,757 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, 1, 1] [2019-12-27 14:21:27,758 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 14:21:27,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 14:21:27,766 INFO L82 PathProgramCache]: Analyzing trace with hash 433648018, now seen corresponding path program 1 times [2019-12-27 14:21:27,778 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 14:21:27,779 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701390372] [2019-12-27 14:21:27,779 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 14:21:27,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 14:21:28,156 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 14:21:28,157 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701390372] [2019-12-27 14:21:28,158 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 14:21:28,158 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-27 14:21:28,159 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376462283] [2019-12-27 14:21:28,164 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 14:21:28,164 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 14:21:28,179 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 14:21:28,180 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 14:21:28,181 INFO L87 Difference]: Start difference. First operand 5473 states. Second operand 4 states. [2019-12-27 14:21:28,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 14:21:28,350 INFO L93 Difference]: Finished difference Result 5710 states and 21935 transitions. [2019-12-27 14:21:28,350 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-27 14:21:28,352 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 36 [2019-12-27 14:21:28,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 14:21:28,393 INFO L225 Difference]: With dead ends: 5710 [2019-12-27 14:21:28,393 INFO L226 Difference]: Without dead ends: 2394 [2019-12-27 14:21:28,395 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 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 14:21:28,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2394 states. [2019-12-27 14:21:28,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2394 to 2394. [2019-12-27 14:21:28,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2394 states. [2019-12-27 14:21:28,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2394 states to 2394 states and 8938 transitions. [2019-12-27 14:21:28,595 INFO L78 Accepts]: Start accepts. Automaton has 2394 states and 8938 transitions. Word has length 36 [2019-12-27 14:21:28,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 14:21:28,597 INFO L462 AbstractCegarLoop]: Abstraction has 2394 states and 8938 transitions. [2019-12-27 14:21:28,597 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 14:21:28,597 INFO L276 IsEmpty]: Start isEmpty. Operand 2394 states and 8938 transitions. [2019-12-27 14:21:28,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2019-12-27 14:21:28,603 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 14:21:28,603 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, 1, 1, 1] [2019-12-27 14:21:28,604 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 14:21:28,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 14:21:28,604 INFO L82 PathProgramCache]: Analyzing trace with hash -895431090, now seen corresponding path program 1 times [2019-12-27 14:21:28,605 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 14:21:28,605 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852774946] [2019-12-27 14:21:28,605 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 14:21:28,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 14:21:28,789 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 14:21:28,790 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852774946] [2019-12-27 14:21:28,790 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 14:21:28,790 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-27 14:21:28,791 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208307042] [2019-12-27 14:21:28,794 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-27 14:21:28,794 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 14:21:28,795 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-27 14:21:28,795 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-27 14:21:28,795 INFO L87 Difference]: Start difference. First operand 2394 states and 8938 transitions. Second operand 5 states. [2019-12-27 14:21:28,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 14:21:28,923 INFO L93 Difference]: Finished difference Result 2565 states and 9322 transitions. [2019-12-27 14:21:28,923 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-27 14:21:28,923 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 37 [2019-12-27 14:21:28,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 14:21:28,946 INFO L225 Difference]: With dead ends: 2565 [2019-12-27 14:21:28,946 INFO L226 Difference]: Without dead ends: 2310 [2019-12-27 14:21:28,947 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 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 14:21:28,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2310 states. [2019-12-27 14:21:29,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2310 to 2310. [2019-12-27 14:21:29,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2310 states. [2019-12-27 14:21:29,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2310 states to 2310 states and 8546 transitions. [2019-12-27 14:21:29,056 INFO L78 Accepts]: Start accepts. Automaton has 2310 states and 8546 transitions. Word has length 37 [2019-12-27 14:21:29,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 14:21:29,057 INFO L462 AbstractCegarLoop]: Abstraction has 2310 states and 8546 transitions. [2019-12-27 14:21:29,057 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-27 14:21:29,057 INFO L276 IsEmpty]: Start isEmpty. Operand 2310 states and 8546 transitions. [2019-12-27 14:21:29,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-12-27 14:21:29,062 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 14:21:29,062 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, 1, 1, 1, 1] [2019-12-27 14:21:29,063 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 14:21:29,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 14:21:29,063 INFO L82 PathProgramCache]: Analyzing trace with hash 1455477097, now seen corresponding path program 1 times [2019-12-27 14:21:29,063 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 14:21:29,064 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883428313] [2019-12-27 14:21:29,064 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 14:21:29,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 14:21:29,203 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 14:21:29,203 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883428313] [2019-12-27 14:21:29,204 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 14:21:29,204 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-27 14:21:29,204 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273996523] [2019-12-27 14:21:29,204 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-27 14:21:29,207 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 14:21:29,207 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-27 14:21:29,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-27 14:21:29,207 INFO L87 Difference]: Start difference. First operand 2310 states and 8546 transitions. Second operand 6 states. [2019-12-27 14:21:29,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 14:21:29,340 INFO L93 Difference]: Finished difference Result 2175 states and 7682 transitions. [2019-12-27 14:21:29,341 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-27 14:21:29,341 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 38 [2019-12-27 14:21:29,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 14:21:29,358 INFO L225 Difference]: With dead ends: 2175 [2019-12-27 14:21:29,358 INFO L226 Difference]: Without dead ends: 1932 [2019-12-27 14:21:29,359 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2019-12-27 14:21:29,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1932 states. [2019-12-27 14:21:29,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1932 to 1932. [2019-12-27 14:21:29,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1932 states. [2019-12-27 14:21:29,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1932 states to 1932 states and 6908 transitions. [2019-12-27 14:21:29,433 INFO L78 Accepts]: Start accepts. Automaton has 1932 states and 6908 transitions. Word has length 38 [2019-12-27 14:21:29,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 14:21:29,434 INFO L462 AbstractCegarLoop]: Abstraction has 1932 states and 6908 transitions. [2019-12-27 14:21:29,434 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-27 14:21:29,434 INFO L276 IsEmpty]: Start isEmpty. Operand 1932 states and 6908 transitions. [2019-12-27 14:21:29,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2019-12-27 14:21:29,443 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 14:21:29,443 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, 1, 1, 1, 1, 1] [2019-12-27 14:21:29,443 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 14:21:29,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 14:21:29,445 INFO L82 PathProgramCache]: Analyzing trace with hash -1169485641, now seen corresponding path program 1 times [2019-12-27 14:21:29,446 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 14:21:29,447 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798503573] [2019-12-27 14:21:29,447 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 14:21:29,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 14:21:29,669 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 14:21:29,670 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1798503573] [2019-12-27 14:21:29,670 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 14:21:29,670 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-27 14:21:29,671 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232407069] [2019-12-27 14:21:29,671 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-27 14:21:29,671 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 14:21:29,672 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-27 14:21:29,672 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-12-27 14:21:29,672 INFO L87 Difference]: Start difference. First operand 1932 states and 6908 transitions. Second operand 7 states. [2019-12-27 14:21:29,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 14:21:29,797 INFO L93 Difference]: Finished difference Result 1365 states and 4532 transitions. [2019-12-27 14:21:29,798 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-27 14:21:29,798 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 39 [2019-12-27 14:21:29,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 14:21:29,808 INFO L225 Difference]: With dead ends: 1365 [2019-12-27 14:21:29,808 INFO L226 Difference]: Without dead ends: 1176 [2019-12-27 14:21:29,809 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2019-12-27 14:21:29,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1176 states. [2019-12-27 14:21:29,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1176 to 1176. [2019-12-27 14:21:29,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1176 states. [2019-12-27 14:21:29,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1176 states to 1176 states and 3884 transitions. [2019-12-27 14:21:29,851 INFO L78 Accepts]: Start accepts. Automaton has 1176 states and 3884 transitions. Word has length 39 [2019-12-27 14:21:29,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 14:21:29,852 INFO L462 AbstractCegarLoop]: Abstraction has 1176 states and 3884 transitions. [2019-12-27 14:21:29,852 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-27 14:21:29,852 INFO L276 IsEmpty]: Start isEmpty. Operand 1176 states and 3884 transitions. [2019-12-27 14:21:29,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2019-12-27 14:21:29,855 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 14:21:29,856 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, 1, 1, 1, 1, 1, 1] [2019-12-27 14:21:29,856 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 14:21:29,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 14:21:29,856 INFO L82 PathProgramCache]: Analyzing trace with hash -985222538, now seen corresponding path program 1 times [2019-12-27 14:21:29,857 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 14:21:29,857 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228450910] [2019-12-27 14:21:29,857 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 14:21:29,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 14:21:30,056 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 14:21:30,056 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228450910] [2019-12-27 14:21:30,056 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 14:21:30,057 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-12-27 14:21:30,057 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983054837] [2019-12-27 14:21:30,058 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-27 14:21:30,058 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 14:21:30,058 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-27 14:21:30,058 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-12-27 14:21:30,059 INFO L87 Difference]: Start difference. First operand 1176 states and 3884 transitions. Second operand 8 states. [2019-12-27 14:21:30,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 14:21:30,196 INFO L93 Difference]: Finished difference Result 1725 states and 5777 transitions. [2019-12-27 14:21:30,196 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-27 14:21:30,196 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 40 [2019-12-27 14:21:30,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 14:21:30,204 INFO L225 Difference]: With dead ends: 1725 [2019-12-27 14:21:30,204 INFO L226 Difference]: Without dead ends: 876 [2019-12-27 14:21:30,205 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2019-12-27 14:21:30,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 876 states. [2019-12-27 14:21:30,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 876 to 876. [2019-12-27 14:21:30,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 876 states. [2019-12-27 14:21:30,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 876 states to 876 states and 2888 transitions. [2019-12-27 14:21:30,255 INFO L78 Accepts]: Start accepts. Automaton has 876 states and 2888 transitions. Word has length 40 [2019-12-27 14:21:30,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 14:21:30,255 INFO L462 AbstractCegarLoop]: Abstraction has 876 states and 2888 transitions. [2019-12-27 14:21:30,255 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-27 14:21:30,256 INFO L276 IsEmpty]: Start isEmpty. Operand 876 states and 2888 transitions. [2019-12-27 14:21:30,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2019-12-27 14:21:30,259 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 14:21:30,260 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, 1, 1, 1, 1, 1, 1] [2019-12-27 14:21:30,260 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 14:21:30,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 14:21:30,260 INFO L82 PathProgramCache]: Analyzing trace with hash 1459721732, now seen corresponding path program 2 times [2019-12-27 14:21:30,261 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 14:21:30,261 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786878793] [2019-12-27 14:21:30,261 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 14:21:30,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 14:21:30,371 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 14:21:30,371 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1786878793] [2019-12-27 14:21:30,372 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 14:21:30,372 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-27 14:21:30,372 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79666867] [2019-12-27 14:21:30,372 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-27 14:21:30,373 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 14:21:30,374 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-27 14:21:30,374 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-12-27 14:21:30,374 INFO L87 Difference]: Start difference. First operand 876 states and 2888 transitions. Second operand 7 states. [2019-12-27 14:21:30,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 14:21:30,596 INFO L93 Difference]: Finished difference Result 1389 states and 4670 transitions. [2019-12-27 14:21:30,597 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-27 14:21:30,597 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 40 [2019-12-27 14:21:30,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 14:21:30,603 INFO L225 Difference]: With dead ends: 1389 [2019-12-27 14:21:30,604 INFO L226 Difference]: Without dead ends: 768 [2019-12-27 14:21:30,604 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2019-12-27 14:21:30,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 768 states. [2019-12-27 14:21:30,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 768 to 768. [2019-12-27 14:21:30,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 768 states. [2019-12-27 14:21:30,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 768 states to 768 states and 2576 transitions. [2019-12-27 14:21:30,676 INFO L78 Accepts]: Start accepts. Automaton has 768 states and 2576 transitions. Word has length 40 [2019-12-27 14:21:30,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 14:21:30,676 INFO L462 AbstractCegarLoop]: Abstraction has 768 states and 2576 transitions. [2019-12-27 14:21:30,676 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-27 14:21:30,676 INFO L276 IsEmpty]: Start isEmpty. Operand 768 states and 2576 transitions. [2019-12-27 14:21:30,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2019-12-27 14:21:30,678 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 14:21:30,678 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, 1, 1, 1, 1, 1, 1] [2019-12-27 14:21:30,679 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 14:21:30,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 14:21:30,679 INFO L82 PathProgramCache]: Analyzing trace with hash -353081860, now seen corresponding path program 3 times [2019-12-27 14:21:30,679 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 14:21:30,680 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163177308] [2019-12-27 14:21:30,680 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 14:21:30,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 14:21:30,801 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 14:21:30,801 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [163177308] [2019-12-27 14:21:30,802 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 14:21:30,802 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-27 14:21:30,802 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970245055] [2019-12-27 14:21:30,803 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-27 14:21:30,804 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 14:21:30,804 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-27 14:21:30,805 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-12-27 14:21:30,805 INFO L87 Difference]: Start difference. First operand 768 states and 2576 transitions. Second operand 7 states. [2019-12-27 14:21:30,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 14:21:30,920 INFO L93 Difference]: Finished difference Result 1254 states and 4277 transitions. [2019-12-27 14:21:30,920 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-27 14:21:30,920 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 40 [2019-12-27 14:21:30,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 14:21:30,926 INFO L225 Difference]: With dead ends: 1254 [2019-12-27 14:21:30,926 INFO L226 Difference]: Without dead ends: 717 [2019-12-27 14:21:30,927 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2019-12-27 14:21:30,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 717 states. [2019-12-27 14:21:30,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 717 to 717. [2019-12-27 14:21:30,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 717 states. [2019-12-27 14:21:30,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 717 states to 717 states and 2432 transitions. [2019-12-27 14:21:30,953 INFO L78 Accepts]: Start accepts. Automaton has 717 states and 2432 transitions. Word has length 40 [2019-12-27 14:21:30,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 14:21:30,954 INFO L462 AbstractCegarLoop]: Abstraction has 717 states and 2432 transitions. [2019-12-27 14:21:30,954 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-27 14:21:30,954 INFO L276 IsEmpty]: Start isEmpty. Operand 717 states and 2432 transitions. [2019-12-27 14:21:30,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2019-12-27 14:21:30,956 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 14:21:30,956 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, 1, 1, 1, 1, 1, 1] [2019-12-27 14:21:30,956 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 14:21:30,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 14:21:30,957 INFO L82 PathProgramCache]: Analyzing trace with hash 1457383704, now seen corresponding path program 4 times [2019-12-27 14:21:30,957 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 14:21:30,958 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886366941] [2019-12-27 14:21:30,958 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 14:21:30,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 14:21:31,117 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 14:21:31,117 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886366941] [2019-12-27 14:21:31,118 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 14:21:31,118 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-27 14:21:31,118 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089555676] [2019-12-27 14:21:31,119 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-27 14:21:31,119 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 14:21:31,119 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-27 14:21:31,119 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-12-27 14:21:31,119 INFO L87 Difference]: Start difference. First operand 717 states and 2432 transitions. Second operand 7 states. [2019-12-27 14:21:31,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 14:21:31,261 INFO L93 Difference]: Finished difference Result 555 states and 1838 transitions. [2019-12-27 14:21:31,261 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-27 14:21:31,261 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 40 [2019-12-27 14:21:31,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 14:21:31,262 INFO L225 Difference]: With dead ends: 555 [2019-12-27 14:21:31,262 INFO L226 Difference]: Without dead ends: 0 [2019-12-27 14:21:31,262 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2019-12-27 14:21:31,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-27 14:21:31,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-27 14:21:31,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-27 14:21:31,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-27 14:21:31,263 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 40 [2019-12-27 14:21:31,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 14:21:31,264 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-27 14:21:31,264 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-27 14:21:31,264 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-27 14:21:31,264 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-27 14:21:31,269 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.12 02:21:31 BasicIcfg [2019-12-27 14:21:31,270 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-27 14:21:31,272 INFO L168 Benchmark]: Toolchain (without parser) took 5289.17 ms. Allocated memory was 137.4 MB in the beginning and 325.1 MB in the end (delta: 187.7 MB). Free memory was 100.8 MB in the beginning and 179.7 MB in the end (delta: -78.9 MB). Peak memory consumption was 108.8 MB. Max. memory is 7.1 GB. [2019-12-27 14:21:31,273 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 137.4 MB. Free memory was 120.6 MB in the beginning and 120.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-12-27 14:21:31,274 INFO L168 Benchmark]: CACSL2BoogieTranslator took 759.14 ms. Allocated memory was 137.4 MB in the beginning and 201.3 MB in the end (delta: 64.0 MB). Free memory was 100.6 MB in the beginning and 157.9 MB in the end (delta: -57.3 MB). Peak memory consumption was 24.3 MB. Max. memory is 7.1 GB. [2019-12-27 14:21:31,275 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.47 ms. Allocated memory is still 201.3 MB. Free memory was 157.9 MB in the beginning and 155.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2019-12-27 14:21:31,276 INFO L168 Benchmark]: Boogie Preprocessor took 28.37 ms. Allocated memory is still 201.3 MB. Free memory was 155.8 MB in the beginning and 154.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2019-12-27 14:21:31,276 INFO L168 Benchmark]: RCFGBuilder took 465.77 ms. Allocated memory is still 201.3 MB. Free memory was 154.5 MB in the beginning and 132.2 MB in the end (delta: 22.2 MB). Peak memory consumption was 22.2 MB. Max. memory is 7.1 GB. [2019-12-27 14:21:31,277 INFO L168 Benchmark]: TraceAbstraction took 3980.32 ms. Allocated memory was 201.3 MB in the beginning and 325.1 MB in the end (delta: 123.7 MB). Free memory was 131.5 MB in the beginning and 179.7 MB in the end (delta: -48.1 MB). Peak memory consumption was 75.6 MB. Max. memory is 7.1 GB. [2019-12-27 14:21:31,282 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 137.4 MB. Free memory was 120.6 MB in the beginning and 120.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 759.14 ms. Allocated memory was 137.4 MB in the beginning and 201.3 MB in the end (delta: 64.0 MB). Free memory was 100.6 MB in the beginning and 157.9 MB in the end (delta: -57.3 MB). Peak memory consumption was 24.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 50.47 ms. Allocated memory is still 201.3 MB. Free memory was 157.9 MB in the beginning and 155.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 28.37 ms. Allocated memory is still 201.3 MB. Free memory was 155.8 MB in the beginning and 154.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 465.77 ms. Allocated memory is still 201.3 MB. Free memory was 154.5 MB in the beginning and 132.2 MB in the end (delta: 22.2 MB). Peak memory consumption was 22.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3980.32 ms. Allocated memory was 201.3 MB in the beginning and 325.1 MB in the end (delta: 123.7 MB). Free memory was 131.5 MB in the beginning and 179.7 MB in the end (delta: -48.1 MB). Peak memory consumption was 75.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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 5 procedures, 65 locations, 1 error locations. Result: SAFE, OverallTime: 3.8s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 479 SDtfs, 697 SDslu, 1362 SDs, 0 SdLazy, 193 SolverSat, 79 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 77 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5473occurred 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: 0.5s AutomataMinimizationTime, 8 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 310 NumberOfCodeBlocks, 310 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 302 ConstructedInterpolants, 0 QuantifiedInterpolants, 35894 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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...