/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/safe001_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-fae578e [2019-12-19 04:12:37,695 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-19 04:12:37,698 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-19 04:12:37,715 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-19 04:12:37,715 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-19 04:12:37,716 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-19 04:12:37,718 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-19 04:12:37,720 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-19 04:12:37,722 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-19 04:12:37,723 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-19 04:12:37,724 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-19 04:12:37,725 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-19 04:12:37,725 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-19 04:12:37,726 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-19 04:12:37,727 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-19 04:12:37,728 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-19 04:12:37,729 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-19 04:12:37,730 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-19 04:12:37,732 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-19 04:12:37,734 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-19 04:12:37,736 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-19 04:12:37,737 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-19 04:12:37,738 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-19 04:12:37,739 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-19 04:12:37,742 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-19 04:12:37,745 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-19 04:12:37,746 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-19 04:12:37,747 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-19 04:12:37,747 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-19 04:12:37,748 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-19 04:12:37,749 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-19 04:12:37,749 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-19 04:12:37,750 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-19 04:12:37,750 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-19 04:12:37,751 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-19 04:12:37,751 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-19 04:12:37,752 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 [2019-12-19 04:12:37,767 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-19 04:12:37,767 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-19 04:12:37,768 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-19 04:12:37,768 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-19 04:12:37,769 INFO L138 SettingsManager]: * Use SBE=true [2019-12-19 04:12:37,769 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-19 04:12:37,769 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-19 04:12:37,769 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-19 04:12:37,770 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-19 04:12:37,770 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-19 04:12:37,770 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-19 04:12:37,770 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-19 04:12:37,770 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-19 04:12:37,771 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-19 04:12:37,771 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-19 04:12:37,771 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-19 04:12:37,771 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-19 04:12:37,771 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-19 04:12:37,771 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-19 04:12:37,773 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-19 04:12:37,773 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-19 04:12:37,773 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-19 04:12:37,774 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-19 04:12:37,774 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-19 04:12:37,774 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-19 04:12:37,774 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-19 04:12:37,774 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-19 04:12:37,774 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2019-12-19 04:12:37,775 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-19 04:12:37,775 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-19 04:12:38,055 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-19 04:12:38,079 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-19 04:12:38,085 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-19 04:12:38,087 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-19 04:12:38,087 INFO L275 PluginConnector]: CDTParser initialized [2019-12-19 04:12:38,088 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe001_tso.oepc.i [2019-12-19 04:12:38,157 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6b2ccb7ff/4312d677a4d8496f96d41558d6e9baaa/FLAGa8520900f [2019-12-19 04:12:38,709 INFO L306 CDTParser]: Found 1 translation units. [2019-12-19 04:12:38,710 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe001_tso.oepc.i [2019-12-19 04:12:38,745 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6b2ccb7ff/4312d677a4d8496f96d41558d6e9baaa/FLAGa8520900f [2019-12-19 04:12:38,998 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6b2ccb7ff/4312d677a4d8496f96d41558d6e9baaa [2019-12-19 04:12:39,007 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-19 04:12:39,012 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-19 04:12:39,013 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-19 04:12:39,013 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-19 04:12:39,020 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-19 04:12:39,021 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 04:12:38" (1/1) ... [2019-12-19 04:12:39,024 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a057fc6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:12:39, skipping insertion in model container [2019-12-19 04:12:39,024 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 04:12:38" (1/1) ... [2019-12-19 04:12:39,033 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-19 04:12:39,086 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-19 04:12:39,595 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-19 04:12:39,606 INFO L203 MainTranslator]: Completed pre-run [2019-12-19 04:12:39,670 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-19 04:12:39,745 INFO L208 MainTranslator]: Completed translation [2019-12-19 04:12:39,745 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:12:39 WrapperNode [2019-12-19 04:12:39,745 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-19 04:12:39,746 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-19 04:12:39,746 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-19 04:12:39,747 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-19 04:12:39,756 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:12:39" (1/1) ... [2019-12-19 04:12:39,777 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:12:39" (1/1) ... [2019-12-19 04:12:39,798 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-19 04:12:39,799 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-19 04:12:39,799 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-19 04:12:39,799 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-19 04:12:39,806 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:12:39" (1/1) ... [2019-12-19 04:12:39,806 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:12:39" (1/1) ... [2019-12-19 04:12:39,809 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:12:39" (1/1) ... [2019-12-19 04:12:39,810 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:12:39" (1/1) ... [2019-12-19 04:12:39,816 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:12:39" (1/1) ... [2019-12-19 04:12:39,818 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:12:39" (1/1) ... [2019-12-19 04:12:39,820 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:12:39" (1/1) ... [2019-12-19 04:12:39,823 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-19 04:12:39,824 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-19 04:12:39,824 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-19 04:12:39,824 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-19 04:12:39,825 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:12:39" (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 [2019-12-19 04:12:39,895 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-19 04:12:39,895 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-19 04:12:39,895 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-19 04:12:39,895 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-19 04:12:39,896 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-19 04:12:39,896 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-19 04:12:39,896 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-19 04:12:39,896 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-19 04:12:39,896 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-19 04:12:39,896 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-19 04:12:39,897 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-19 04:12:39,897 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-19 04:12:39,897 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-19 04:12:39,898 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-19 04:12:40,284 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-19 04:12:40,284 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-19 04:12:40,285 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 04:12:40 BoogieIcfgContainer [2019-12-19 04:12:40,286 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-19 04:12:40,288 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-19 04:12:40,288 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-19 04:12:40,291 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-19 04:12:40,291 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.12 04:12:38" (1/3) ... [2019-12-19 04:12:40,292 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42274fd0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 04:12:40, skipping insertion in model container [2019-12-19 04:12:40,293 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:12:39" (2/3) ... [2019-12-19 04:12:40,293 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42274fd0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 04:12:40, skipping insertion in model container [2019-12-19 04:12:40,293 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 04:12:40" (3/3) ... [2019-12-19 04:12:40,295 INFO L109 eAbstractionObserver]: Analyzing ICFG safe001_tso.oepc.i [2019-12-19 04:12:40,306 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-19 04:12:40,306 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-19 04:12:40,314 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-19 04:12:40,315 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-19 04:12:40,342 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:12:40,343 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:12:40,343 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:12:40,343 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:12:40,344 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:12:40,344 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:12:40,345 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:12:40,345 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:12:40,345 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:12:40,346 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:12:40,346 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:12:40,346 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:12:40,347 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:12:40,347 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:12:40,347 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:12:40,347 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:12:40,347 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:12:40,348 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:12:40,351 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:12:40,352 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:12:40,352 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:12:40,352 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:12:40,358 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:12:40,358 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:12:40,358 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:12:40,359 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:12:40,362 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:12:40,363 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:12:40,363 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:12:40,364 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:12:40,396 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-19 04:12:40,414 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-19 04:12:40,414 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-19 04:12:40,414 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-19 04:12:40,414 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-19 04:12:40,414 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-19 04:12:40,414 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-19 04:12:40,415 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-19 04:12:40,415 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-19 04:12:40,426 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 62 places, 53 transitions [2019-12-19 04:12:40,517 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1247 states. [2019-12-19 04:12:40,519 INFO L276 IsEmpty]: Start isEmpty. Operand 1247 states. [2019-12-19 04:12:40,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-12-19 04:12:40,546 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:12:40,547 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] [2019-12-19 04:12:40,547 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:12:40,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:12:40,554 INFO L82 PathProgramCache]: Analyzing trace with hash -1961534642, now seen corresponding path program 1 times [2019-12-19 04:12:40,564 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:12:40,564 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [35081336] [2019-12-19 04:12:40,565 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:12:40,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:12:40,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 04:12:40,973 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [35081336] [2019-12-19 04:12:40,974 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:12:40,974 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-19 04:12:40,975 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158915711] [2019-12-19 04:12:40,980 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-19 04:12:40,981 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:12:40,996 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-19 04:12:40,997 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-19 04:12:41,000 INFO L87 Difference]: Start difference. First operand 1247 states. Second operand 4 states. [2019-12-19 04:12:41,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:12:41,118 INFO L93 Difference]: Finished difference Result 1294 states and 3960 transitions. [2019-12-19 04:12:41,118 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-19 04:12:41,120 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 30 [2019-12-19 04:12:41,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:12:41,185 INFO L225 Difference]: With dead ends: 1294 [2019-12-19 04:12:41,185 INFO L226 Difference]: Without dead ends: 600 [2019-12-19 04:12:41,189 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 [2019-12-19 04:12:41,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 600 states. [2019-12-19 04:12:41,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 600 to 600. [2019-12-19 04:12:41,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 600 states. [2019-12-19 04:12:41,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 600 states to 600 states and 1775 transitions. [2019-12-19 04:12:41,315 INFO L78 Accepts]: Start accepts. Automaton has 600 states and 1775 transitions. Word has length 30 [2019-12-19 04:12:41,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:12:41,315 INFO L462 AbstractCegarLoop]: Abstraction has 600 states and 1775 transitions. [2019-12-19 04:12:41,315 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-19 04:12:41,316 INFO L276 IsEmpty]: Start isEmpty. Operand 600 states and 1775 transitions. [2019-12-19 04:12:41,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-12-19 04:12:41,318 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:12:41,319 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] [2019-12-19 04:12:41,319 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:12:41,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:12:41,320 INFO L82 PathProgramCache]: Analyzing trace with hash 848017682, now seen corresponding path program 1 times [2019-12-19 04:12:41,320 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:12:41,320 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158416963] [2019-12-19 04:12:41,320 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:12:41,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:12:41,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 04:12:41,492 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1158416963] [2019-12-19 04:12:41,492 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:12:41,492 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-19 04:12:41,492 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112973380] [2019-12-19 04:12:41,494 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-19 04:12:41,495 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:12:41,495 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-19 04:12:41,495 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-19 04:12:41,495 INFO L87 Difference]: Start difference. First operand 600 states and 1775 transitions. Second operand 5 states. [2019-12-19 04:12:41,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:12:41,569 INFO L93 Difference]: Finished difference Result 600 states and 1694 transitions. [2019-12-19 04:12:41,570 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-19 04:12:41,573 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2019-12-19 04:12:41,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:12:41,581 INFO L225 Difference]: With dead ends: 600 [2019-12-19 04:12:41,582 INFO L226 Difference]: Without dead ends: 537 [2019-12-19 04:12:41,590 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 [2019-12-19 04:12:41,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 537 states. [2019-12-19 04:12:41,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 537 to 537. [2019-12-19 04:12:41,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 537 states. [2019-12-19 04:12:41,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 1544 transitions. [2019-12-19 04:12:41,640 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 1544 transitions. Word has length 31 [2019-12-19 04:12:41,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:12:41,641 INFO L462 AbstractCegarLoop]: Abstraction has 537 states and 1544 transitions. [2019-12-19 04:12:41,641 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-19 04:12:41,641 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 1544 transitions. [2019-12-19 04:12:41,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-12-19 04:12:41,644 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:12:41,644 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] [2019-12-19 04:12:41,644 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:12:41,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:12:41,645 INFO L82 PathProgramCache]: Analyzing trace with hash 177866388, now seen corresponding path program 1 times [2019-12-19 04:12:41,645 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:12:41,645 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407782376] [2019-12-19 04:12:41,646 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:12:41,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:12:41,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 04:12:41,807 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407782376] [2019-12-19 04:12:41,808 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:12:41,808 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-19 04:12:41,808 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834491203] [2019-12-19 04:12:41,808 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-19 04:12:41,809 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:12:41,809 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-19 04:12:41,809 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-19 04:12:41,809 INFO L87 Difference]: Start difference. First operand 537 states and 1544 transitions. Second operand 6 states. [2019-12-19 04:12:41,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:12:41,910 INFO L93 Difference]: Finished difference Result 402 states and 1058 transitions. [2019-12-19 04:12:41,911 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-19 04:12:41,911 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2019-12-19 04:12:41,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:12:41,914 INFO L225 Difference]: With dead ends: 402 [2019-12-19 04:12:41,914 INFO L226 Difference]: Without dead ends: 348 [2019-12-19 04:12:41,914 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2019-12-19 04:12:41,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2019-12-19 04:12:41,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 348. [2019-12-19 04:12:41,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 348 states. [2019-12-19 04:12:41,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 914 transitions. [2019-12-19 04:12:41,927 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 914 transitions. Word has length 32 [2019-12-19 04:12:41,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:12:41,927 INFO L462 AbstractCegarLoop]: Abstraction has 348 states and 914 transitions. [2019-12-19 04:12:41,927 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-19 04:12:41,927 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 914 transitions. [2019-12-19 04:12:41,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-12-19 04:12:41,929 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:12:41,929 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] [2019-12-19 04:12:41,929 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:12:41,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:12:41,930 INFO L82 PathProgramCache]: Analyzing trace with hash 1811476463, now seen corresponding path program 1 times [2019-12-19 04:12:41,930 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:12:41,930 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99750560] [2019-12-19 04:12:41,931 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:12:41,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:12:42,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 04:12:42,104 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99750560] [2019-12-19 04:12:42,104 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:12:42,105 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-12-19 04:12:42,106 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200623668] [2019-12-19 04:12:42,106 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-19 04:12:42,107 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:12:42,107 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-19 04:12:42,107 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-12-19 04:12:42,107 INFO L87 Difference]: Start difference. First operand 348 states and 914 transitions. Second operand 8 states. [2019-12-19 04:12:42,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:12:42,359 INFO L93 Difference]: Finished difference Result 681 states and 1853 transitions. [2019-12-19 04:12:42,359 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-12-19 04:12:42,359 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 33 [2019-12-19 04:12:42,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:12:42,362 INFO L225 Difference]: With dead ends: 681 [2019-12-19 04:12:42,362 INFO L226 Difference]: Without dead ends: 327 [2019-12-19 04:12:42,363 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2019-12-19 04:12:42,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2019-12-19 04:12:42,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 327. [2019-12-19 04:12:42,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 327 states. [2019-12-19 04:12:42,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 857 transitions. [2019-12-19 04:12:42,377 INFO L78 Accepts]: Start accepts. Automaton has 327 states and 857 transitions. Word has length 33 [2019-12-19 04:12:42,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:12:42,377 INFO L462 AbstractCegarLoop]: Abstraction has 327 states and 857 transitions. [2019-12-19 04:12:42,377 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-19 04:12:42,378 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 857 transitions. [2019-12-19 04:12:42,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-12-19 04:12:42,379 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:12:42,379 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] [2019-12-19 04:12:42,380 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:12:42,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:12:42,380 INFO L82 PathProgramCache]: Analyzing trace with hash -1498342187, now seen corresponding path program 2 times [2019-12-19 04:12:42,380 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:12:42,381 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758688149] [2019-12-19 04:12:42,381 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:12:42,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:12:42,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 04:12:42,560 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [758688149] [2019-12-19 04:12:42,560 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:12:42,560 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-19 04:12:42,560 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195488849] [2019-12-19 04:12:42,561 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-19 04:12:42,561 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:12:42,561 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-19 04:12:42,563 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-12-19 04:12:42,563 INFO L87 Difference]: Start difference. First operand 327 states and 857 transitions. Second operand 7 states. [2019-12-19 04:12:42,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:12:42,676 INFO L93 Difference]: Finished difference Result 534 states and 1421 transitions. [2019-12-19 04:12:42,676 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-19 04:12:42,677 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2019-12-19 04:12:42,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:12:42,679 INFO L225 Difference]: With dead ends: 534 [2019-12-19 04:12:42,679 INFO L226 Difference]: Without dead ends: 300 [2019-12-19 04:12:42,680 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 [2019-12-19 04:12:42,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2019-12-19 04:12:42,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 300. [2019-12-19 04:12:42,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 300 states. [2019-12-19 04:12:42,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 791 transitions. [2019-12-19 04:12:42,693 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 791 transitions. Word has length 33 [2019-12-19 04:12:42,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:12:42,693 INFO L462 AbstractCegarLoop]: Abstraction has 300 states and 791 transitions. [2019-12-19 04:12:42,694 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-19 04:12:42,694 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 791 transitions. [2019-12-19 04:12:42,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-12-19 04:12:42,695 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:12:42,695 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] [2019-12-19 04:12:42,696 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:12:42,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:12:42,696 INFO L82 PathProgramCache]: Analyzing trace with hash -960486609, now seen corresponding path program 3 times [2019-12-19 04:12:42,696 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:12:42,697 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1662905176] [2019-12-19 04:12:42,697 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:12:42,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:12:42,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 04:12:42,823 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1662905176] [2019-12-19 04:12:42,824 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:12:42,824 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-19 04:12:42,824 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283162475] [2019-12-19 04:12:42,824 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-19 04:12:42,825 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:12:42,825 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-19 04:12:42,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-12-19 04:12:42,826 INFO L87 Difference]: Start difference. First operand 300 states and 791 transitions. Second operand 7 states. [2019-12-19 04:12:42,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:12:42,900 INFO L93 Difference]: Finished difference Result 246 states and 629 transitions. [2019-12-19 04:12:42,900 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-19 04:12:42,900 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2019-12-19 04:12:42,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:12:42,901 INFO L225 Difference]: With dead ends: 246 [2019-12-19 04:12:42,901 INFO L226 Difference]: Without dead ends: 0 [2019-12-19 04:12:42,901 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2019-12-19 04:12:42,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-19 04:12:42,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-19 04:12:42,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-19 04:12:42,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-19 04:12:42,902 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 33 [2019-12-19 04:12:42,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:12:42,902 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-19 04:12:42,903 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-19 04:12:42,903 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-19 04:12:42,903 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-19 04:12:42,908 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.12 04:12:42 BasicIcfg [2019-12-19 04:12:42,909 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-19 04:12:42,911 INFO L168 Benchmark]: Toolchain (without parser) took 3902.18 ms. Allocated memory was 145.2 MB in the beginning and 250.6 MB in the end (delta: 105.4 MB). Free memory was 100.7 MB in the beginning and 163.0 MB in the end (delta: -62.3 MB). Peak memory consumption was 43.1 MB. Max. memory is 7.1 GB. [2019-12-19 04:12:42,912 INFO L168 Benchmark]: CDTParser took 0.78 ms. Allocated memory is still 145.2 MB. Free memory was 120.3 MB in the beginning and 120.1 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-12-19 04:12:42,913 INFO L168 Benchmark]: CACSL2BoogieTranslator took 732.91 ms. Allocated memory was 145.2 MB in the beginning and 203.9 MB in the end (delta: 58.7 MB). Free memory was 100.5 MB in the beginning and 160.8 MB in the end (delta: -60.3 MB). Peak memory consumption was 20.6 MB. Max. memory is 7.1 GB. [2019-12-19 04:12:42,914 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.31 ms. Allocated memory is still 203.9 MB. Free memory was 160.8 MB in the beginning and 158.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-19 04:12:42,915 INFO L168 Benchmark]: Boogie Preprocessor took 24.92 ms. Allocated memory is still 203.9 MB. Free memory was 158.9 MB in the beginning and 157.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-12-19 04:12:42,916 INFO L168 Benchmark]: RCFGBuilder took 462.10 ms. Allocated memory is still 203.9 MB. Free memory was 157.5 MB in the beginning and 137.1 MB in the end (delta: 20.4 MB). Peak memory consumption was 20.4 MB. Max. memory is 7.1 GB. [2019-12-19 04:12:42,917 INFO L168 Benchmark]: TraceAbstraction took 2621.11 ms. Allocated memory was 203.9 MB in the beginning and 250.6 MB in the end (delta: 46.7 MB). Free memory was 136.5 MB in the beginning and 163.0 MB in the end (delta: -26.5 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB. [2019-12-19 04:12:42,921 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.78 ms. Allocated memory is still 145.2 MB. Free memory was 120.3 MB in the beginning and 120.1 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 732.91 ms. Allocated memory was 145.2 MB in the beginning and 203.9 MB in the end (delta: 58.7 MB). Free memory was 100.5 MB in the beginning and 160.8 MB in the end (delta: -60.3 MB). Peak memory consumption was 20.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 52.31 ms. Allocated memory is still 203.9 MB. Free memory was 160.8 MB in the beginning and 158.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 24.92 ms. Allocated memory is still 203.9 MB. Free memory was 158.9 MB in the beginning and 157.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 462.10 ms. Allocated memory is still 203.9 MB. Free memory was 157.5 MB in the beginning and 137.1 MB in the end (delta: 20.4 MB). Peak memory consumption was 20.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2621.11 ms. Allocated memory was 203.9 MB in the beginning and 250.6 MB in the end (delta: 46.7 MB). Free memory was 136.5 MB in the beginning and 163.0 MB in the end (delta: -26.5 MB). Peak memory consumption was 20.1 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 4 procedures, 53 locations, 1 error locations. Result: SAFE, OverallTime: 2.4s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 277 SDtfs, 439 SDslu, 738 SDs, 0 SdLazy, 115 SolverSat, 46 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 57 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1247occurred 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: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 192 NumberOfCodeBlocks, 192 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 186 ConstructedInterpolants, 0 QuantifiedInterpolants, 17818 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...