/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/safe015_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-fae578e [2019-12-19 04:46:19,703 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-19 04:46:19,706 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-19 04:46:19,718 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-19 04:46:19,718 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-19 04:46:19,719 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-19 04:46:19,720 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-19 04:46:19,722 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-19 04:46:19,724 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-19 04:46:19,725 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-19 04:46:19,726 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-19 04:46:19,727 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-19 04:46:19,727 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-19 04:46:19,728 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-19 04:46:19,729 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-19 04:46:19,730 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-19 04:46:19,731 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-19 04:46:19,732 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-19 04:46:19,734 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-19 04:46:19,736 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-19 04:46:19,738 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-19 04:46:19,739 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-19 04:46:19,740 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-19 04:46:19,741 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-19 04:46:19,743 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-19 04:46:19,747 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-19 04:46:19,748 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-19 04:46:19,748 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-19 04:46:19,749 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-19 04:46:19,750 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-19 04:46:19,750 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-19 04:46:19,751 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-19 04:46:19,751 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-19 04:46:19,752 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-19 04:46:19,752 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-19 04:46:19,755 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-19 04:46:19,756 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 04:46:19,770 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-19 04:46:19,771 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-19 04:46:19,772 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-19 04:46:19,772 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-19 04:46:19,772 INFO L138 SettingsManager]: * Use SBE=true [2019-12-19 04:46:19,772 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-19 04:46:19,773 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-19 04:46:19,773 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-19 04:46:19,773 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-19 04:46:19,773 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-19 04:46:19,773 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-19 04:46:19,774 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-19 04:46:19,774 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-19 04:46:19,774 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-19 04:46:19,774 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-19 04:46:19,774 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-19 04:46:19,775 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-19 04:46:19,775 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-19 04:46:19,775 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-19 04:46:19,775 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-19 04:46:19,775 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-19 04:46:19,776 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-19 04:46:19,776 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-19 04:46:19,776 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-19 04:46:19,776 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-19 04:46:19,776 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-19 04:46:19,777 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-19 04:46:19,777 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2019-12-19 04:46:19,777 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-19 04:46:19,777 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-19 04:46:20,061 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-19 04:46:20,078 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-19 04:46:20,081 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-19 04:46:20,083 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-19 04:46:20,083 INFO L275 PluginConnector]: CDTParser initialized [2019-12-19 04:46:20,084 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe015_tso.opt.i [2019-12-19 04:46:20,160 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1fec7eb87/12990bffccaa4743b70bf7f3d0dc8576/FLAG876f8ffc1 [2019-12-19 04:46:20,725 INFO L306 CDTParser]: Found 1 translation units. [2019-12-19 04:46:20,726 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe015_tso.opt.i [2019-12-19 04:46:20,747 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1fec7eb87/12990bffccaa4743b70bf7f3d0dc8576/FLAG876f8ffc1 [2019-12-19 04:46:21,064 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1fec7eb87/12990bffccaa4743b70bf7f3d0dc8576 [2019-12-19 04:46:21,074 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-19 04:46:21,076 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-19 04:46:21,077 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-19 04:46:21,078 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-19 04:46:21,082 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-19 04:46:21,083 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 04:46:21" (1/1) ... [2019-12-19 04:46:21,086 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1aedea21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:46:21, skipping insertion in model container [2019-12-19 04:46:21,087 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 04:46:21" (1/1) ... [2019-12-19 04:46:21,093 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-19 04:46:21,147 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-19 04:46:21,652 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-19 04:46:21,664 INFO L203 MainTranslator]: Completed pre-run [2019-12-19 04:46:21,714 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-19 04:46:21,793 INFO L208 MainTranslator]: Completed translation [2019-12-19 04:46:21,793 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:46:21 WrapperNode [2019-12-19 04:46:21,793 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-19 04:46:21,794 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-19 04:46:21,794 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-19 04:46:21,794 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-19 04:46:21,804 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:46:21" (1/1) ... [2019-12-19 04:46:21,821 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:46:21" (1/1) ... [2019-12-19 04:46:21,842 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-19 04:46:21,842 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-19 04:46:21,842 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-19 04:46:21,842 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-19 04:46:21,849 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:46:21" (1/1) ... [2019-12-19 04:46:21,850 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:46:21" (1/1) ... [2019-12-19 04:46:21,853 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:46:21" (1/1) ... [2019-12-19 04:46:21,853 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:46:21" (1/1) ... [2019-12-19 04:46:21,859 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:46:21" (1/1) ... [2019-12-19 04:46:21,862 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:46:21" (1/1) ... [2019-12-19 04:46:21,864 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:46:21" (1/1) ... [2019-12-19 04:46:21,867 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-19 04:46:21,868 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-19 04:46:21,868 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-19 04:46:21,868 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-19 04:46:21,869 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:46:21" (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 04:46:21,939 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-19 04:46:21,940 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-19 04:46:21,940 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-19 04:46:21,940 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-19 04:46:21,940 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-19 04:46:21,941 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-19 04:46:21,941 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-19 04:46:21,942 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-19 04:46:21,942 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-19 04:46:21,943 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-19 04:46:21,943 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-19 04:46:21,943 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-19 04:46:21,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-19 04:46:21,945 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 04:46:22,314 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-19 04:46:22,315 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-19 04:46:22,316 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 04:46:22 BoogieIcfgContainer [2019-12-19 04:46:22,317 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-19 04:46:22,318 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-19 04:46:22,318 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-19 04:46:22,321 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-19 04:46:22,322 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.12 04:46:21" (1/3) ... [2019-12-19 04:46:22,323 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71b3cc19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 04:46:22, skipping insertion in model container [2019-12-19 04:46:22,323 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:46:21" (2/3) ... [2019-12-19 04:46:22,323 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71b3cc19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 04:46:22, skipping insertion in model container [2019-12-19 04:46:22,324 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 04:46:22" (3/3) ... [2019-12-19 04:46:22,325 INFO L109 eAbstractionObserver]: Analyzing ICFG safe015_tso.opt.i [2019-12-19 04:46:22,334 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-19 04:46:22,335 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-19 04:46:22,344 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-19 04:46:22,345 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-19 04:46:22,373 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:46:22,373 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:46:22,373 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:46:22,374 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:46:22,374 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:46:22,374 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:46:22,375 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:46:22,375 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:46:22,375 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:46:22,376 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:46:22,376 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:46:22,376 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:46:22,377 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:46:22,377 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:46:22,377 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:46:22,377 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:46:22,378 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:46:22,378 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:46:22,382 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:46:22,383 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:46:22,383 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:46:22,383 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:46:22,386 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:46:22,389 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:46:22,389 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:46:22,389 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:46:22,392 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:46:22,392 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:46:22,393 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:46:22,393 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:46:22,410 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-19 04:46:22,426 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-19 04:46:22,426 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-19 04:46:22,426 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-19 04:46:22,426 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-19 04:46:22,426 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-19 04:46:22,427 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-19 04:46:22,427 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-19 04:46:22,427 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-19 04:46:22,438 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 62 places, 53 transitions [2019-12-19 04:46:22,519 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1247 states. [2019-12-19 04:46:22,521 INFO L276 IsEmpty]: Start isEmpty. Operand 1247 states. [2019-12-19 04:46:22,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-12-19 04:46:22,538 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:46:22,539 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 04:46:22,540 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:46:22,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:46:22,546 INFO L82 PathProgramCache]: Analyzing trace with hash -1402148942, now seen corresponding path program 1 times [2019-12-19 04:46:22,555 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:46:22,556 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250094023] [2019-12-19 04:46:22,556 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:46:22,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:46:22,936 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 04:46:22,937 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [250094023] [2019-12-19 04:46:22,938 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:46:22,939 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-19 04:46:22,940 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604281106] [2019-12-19 04:46:22,945 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-19 04:46:22,945 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:46:22,960 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-19 04:46:22,961 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-19 04:46:22,964 INFO L87 Difference]: Start difference. First operand 1247 states. Second operand 4 states. [2019-12-19 04:46:23,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:46:23,077 INFO L93 Difference]: Finished difference Result 1294 states and 3960 transitions. [2019-12-19 04:46:23,105 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-19 04:46:23,106 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 30 [2019-12-19 04:46:23,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:46:23,144 INFO L225 Difference]: With dead ends: 1294 [2019-12-19 04:46:23,144 INFO L226 Difference]: Without dead ends: 600 [2019-12-19 04:46:23,148 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 04:46:23,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 600 states. [2019-12-19 04:46:23,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 600 to 600. [2019-12-19 04:46:23,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 600 states. [2019-12-19 04:46:23,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 600 states to 600 states and 1775 transitions. [2019-12-19 04:46:23,249 INFO L78 Accepts]: Start accepts. Automaton has 600 states and 1775 transitions. Word has length 30 [2019-12-19 04:46:23,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:46:23,250 INFO L462 AbstractCegarLoop]: Abstraction has 600 states and 1775 transitions. [2019-12-19 04:46:23,250 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-19 04:46:23,250 INFO L276 IsEmpty]: Start isEmpty. Operand 600 states and 1775 transitions. [2019-12-19 04:46:23,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-12-19 04:46:23,254 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:46:23,254 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 04:46:23,254 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:46:23,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:46:23,255 INFO L82 PathProgramCache]: Analyzing trace with hash -191362068, now seen corresponding path program 1 times [2019-12-19 04:46:23,255 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:46:23,255 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551510060] [2019-12-19 04:46:23,256 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:46:23,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:46:23,434 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 04:46:23,434 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551510060] [2019-12-19 04:46:23,435 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:46:23,435 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-19 04:46:23,436 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331664116] [2019-12-19 04:46:23,437 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-19 04:46:23,438 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:46:23,438 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-19 04:46:23,439 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-19 04:46:23,439 INFO L87 Difference]: Start difference. First operand 600 states and 1775 transitions. Second operand 5 states. [2019-12-19 04:46:23,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:46:23,538 INFO L93 Difference]: Finished difference Result 600 states and 1694 transitions. [2019-12-19 04:46:23,538 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-19 04:46:23,538 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2019-12-19 04:46:23,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:46:23,544 INFO L225 Difference]: With dead ends: 600 [2019-12-19 04:46:23,544 INFO L226 Difference]: Without dead ends: 537 [2019-12-19 04:46:23,545 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 04:46:23,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 537 states. [2019-12-19 04:46:23,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 537 to 537. [2019-12-19 04:46:23,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 537 states. [2019-12-19 04:46:23,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 1544 transitions. [2019-12-19 04:46:23,579 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 1544 transitions. Word has length 31 [2019-12-19 04:46:23,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:46:23,579 INFO L462 AbstractCegarLoop]: Abstraction has 537 states and 1544 transitions. [2019-12-19 04:46:23,579 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-19 04:46:23,580 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 1544 transitions. [2019-12-19 04:46:23,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-12-19 04:46:23,582 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:46:23,582 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 04:46:23,582 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:46:23,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:46:23,583 INFO L82 PathProgramCache]: Analyzing trace with hash 1139876538, now seen corresponding path program 1 times [2019-12-19 04:46:23,583 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:46:23,583 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641599749] [2019-12-19 04:46:23,583 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:46:23,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:46:23,698 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 04:46:23,698 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [641599749] [2019-12-19 04:46:23,699 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:46:23,699 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-19 04:46:23,699 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139068726] [2019-12-19 04:46:23,700 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-19 04:46:23,700 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:46:23,700 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-19 04:46:23,700 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-19 04:46:23,701 INFO L87 Difference]: Start difference. First operand 537 states and 1544 transitions. Second operand 6 states. [2019-12-19 04:46:23,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:46:23,812 INFO L93 Difference]: Finished difference Result 402 states and 1058 transitions. [2019-12-19 04:46:23,812 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-19 04:46:23,812 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2019-12-19 04:46:23,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:46:23,816 INFO L225 Difference]: With dead ends: 402 [2019-12-19 04:46:23,816 INFO L226 Difference]: Without dead ends: 348 [2019-12-19 04:46:23,816 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 04:46:23,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2019-12-19 04:46:23,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 348. [2019-12-19 04:46:23,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 348 states. [2019-12-19 04:46:23,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 914 transitions. [2019-12-19 04:46:23,838 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 914 transitions. Word has length 32 [2019-12-19 04:46:23,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:46:23,839 INFO L462 AbstractCegarLoop]: Abstraction has 348 states and 914 transitions. [2019-12-19 04:46:23,839 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-19 04:46:23,839 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 914 transitions. [2019-12-19 04:46:23,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-12-19 04:46:23,842 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:46:23,842 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 04:46:23,843 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:46:23,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:46:23,843 INFO L82 PathProgramCache]: Analyzing trace with hash -1474863345, now seen corresponding path program 1 times [2019-12-19 04:46:23,844 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:46:23,844 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259560956] [2019-12-19 04:46:23,844 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:46:23,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:46:24,033 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 04:46:24,035 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [259560956] [2019-12-19 04:46:24,035 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:46:24,036 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-19 04:46:24,036 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385433144] [2019-12-19 04:46:24,036 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-19 04:46:24,036 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:46:24,037 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-19 04:46:24,038 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-12-19 04:46:24,038 INFO L87 Difference]: Start difference. First operand 348 states and 914 transitions. Second operand 7 states. [2019-12-19 04:46:24,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:46:24,256 INFO L93 Difference]: Finished difference Result 726 states and 1958 transitions. [2019-12-19 04:46:24,257 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-12-19 04:46:24,257 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2019-12-19 04:46:24,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:46:24,259 INFO L225 Difference]: With dead ends: 726 [2019-12-19 04:46:24,259 INFO L226 Difference]: Without dead ends: 252 [2019-12-19 04:46:24,261 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=57, Invalid=99, Unknown=0, NotChecked=0, Total=156 [2019-12-19 04:46:24,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2019-12-19 04:46:24,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 252. [2019-12-19 04:46:24,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 252 states. [2019-12-19 04:46:24,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 671 transitions. [2019-12-19 04:46:24,278 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 671 transitions. Word has length 33 [2019-12-19 04:46:24,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:46:24,278 INFO L462 AbstractCegarLoop]: Abstraction has 252 states and 671 transitions. [2019-12-19 04:46:24,278 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-19 04:46:24,278 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 671 transitions. [2019-12-19 04:46:24,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-12-19 04:46:24,281 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:46:24,282 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 04:46:24,282 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:46:24,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:46:24,282 INFO L82 PathProgramCache]: Analyzing trace with hash -1216436527, now seen corresponding path program 2 times [2019-12-19 04:46:24,283 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:46:24,283 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355063473] [2019-12-19 04:46:24,283 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:46:24,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:46:24,459 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 04:46:24,460 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [355063473] [2019-12-19 04:46:24,460 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:46:24,461 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-19 04:46:24,461 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430775356] [2019-12-19 04:46:24,461 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-19 04:46:24,462 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:46:24,478 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-19 04:46:24,480 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-12-19 04:46:24,480 INFO L87 Difference]: Start difference. First operand 252 states and 671 transitions. Second operand 7 states. [2019-12-19 04:46:24,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:46:24,595 INFO L93 Difference]: Finished difference Result 198 states and 509 transitions. [2019-12-19 04:46:24,596 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-19 04:46:24,596 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2019-12-19 04:46:24,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:46:24,597 INFO L225 Difference]: With dead ends: 198 [2019-12-19 04:46:24,597 INFO L226 Difference]: Without dead ends: 0 [2019-12-19 04:46:24,597 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 04:46:24,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-19 04:46:24,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-19 04:46:24,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-19 04:46:24,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-19 04:46:24,601 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 33 [2019-12-19 04:46:24,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:46:24,601 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-19 04:46:24,601 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-19 04:46:24,602 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-19 04:46:24,602 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-19 04:46:24,609 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.12 04:46:24 BasicIcfg [2019-12-19 04:46:24,610 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-19 04:46:24,621 INFO L168 Benchmark]: Toolchain (without parser) took 3540.82 ms. Allocated memory was 145.2 MB in the beginning and 251.7 MB in the end (delta: 106.4 MB). Free memory was 101.5 MB in the beginning and 203.8 MB in the end (delta: -102.4 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. [2019-12-19 04:46:24,623 INFO L168 Benchmark]: CDTParser took 0.48 ms. Allocated memory is still 145.2 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2019-12-19 04:46:24,625 INFO L168 Benchmark]: CACSL2BoogieTranslator took 716.35 ms. Allocated memory was 145.2 MB in the beginning and 202.4 MB in the end (delta: 57.1 MB). Free memory was 101.1 MB in the beginning and 159.2 MB in the end (delta: -58.2 MB). Peak memory consumption was 21.5 MB. Max. memory is 7.1 GB. [2019-12-19 04:46:24,631 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.87 ms. Allocated memory is still 202.4 MB. Free memory was 159.2 MB in the beginning and 157.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-19 04:46:24,639 INFO L168 Benchmark]: Boogie Preprocessor took 25.23 ms. Allocated memory is still 202.4 MB. Free memory was 157.3 MB in the beginning and 155.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2019-12-19 04:46:24,642 INFO L168 Benchmark]: RCFGBuilder took 448.91 ms. Allocated memory is still 202.4 MB. Free memory was 155.2 MB in the beginning and 135.5 MB in the end (delta: 19.7 MB). Peak memory consumption was 19.7 MB. Max. memory is 7.1 GB. [2019-12-19 04:46:24,643 INFO L168 Benchmark]: TraceAbstraction took 2296.97 ms. Allocated memory was 202.4 MB in the beginning and 251.7 MB in the end (delta: 49.3 MB). Free memory was 134.9 MB in the beginning and 203.8 MB in the end (delta: -69.0 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-12-19 04:46:24,649 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.48 ms. Allocated memory is still 145.2 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 716.35 ms. Allocated memory was 145.2 MB in the beginning and 202.4 MB in the end (delta: 57.1 MB). Free memory was 101.1 MB in the beginning and 159.2 MB in the end (delta: -58.2 MB). Peak memory consumption was 21.5 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 47.87 ms. Allocated memory is still 202.4 MB. Free memory was 159.2 MB in the beginning and 157.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 25.23 ms. Allocated memory is still 202.4 MB. Free memory was 157.3 MB in the beginning and 155.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 448.91 ms. Allocated memory is still 202.4 MB. Free memory was 155.2 MB in the beginning and 135.5 MB in the end (delta: 19.7 MB). Peak memory consumption was 19.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2296.97 ms. Allocated memory was 202.4 MB in the beginning and 251.7 MB in the end (delta: 49.3 MB). Free memory was 134.9 MB in the beginning and 203.8 MB in the end (delta: -69.0 MB). There was no memory consumed. 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: 2.1s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 225 SDtfs, 330 SDslu, 567 SDs, 0 SdLazy, 94 SolverSat, 42 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 45 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.6s 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, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 159 NumberOfCodeBlocks, 159 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 154 ConstructedInterpolants, 0 QuantifiedInterpolants, 13786 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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...