/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/safe013_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-fae578e [2019-12-19 04:43:29,679 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-19 04:43:29,681 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-19 04:43:29,693 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-19 04:43:29,693 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-19 04:43:29,695 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-19 04:43:29,696 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-19 04:43:29,698 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-19 04:43:29,699 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-19 04:43:29,700 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-19 04:43:29,701 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-19 04:43:29,702 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-19 04:43:29,703 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-19 04:43:29,703 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-19 04:43:29,704 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-19 04:43:29,705 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-19 04:43:29,706 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-19 04:43:29,707 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-19 04:43:29,709 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-19 04:43:29,711 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-19 04:43:29,713 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-19 04:43:29,714 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-19 04:43:29,715 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-19 04:43:29,716 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-19 04:43:29,718 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-19 04:43:29,719 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-19 04:43:29,719 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-19 04:43:29,720 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-19 04:43:29,720 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-19 04:43:29,721 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-19 04:43:29,721 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-19 04:43:29,722 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-19 04:43:29,723 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-19 04:43:29,724 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-19 04:43:29,725 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-19 04:43:29,725 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-19 04:43:29,725 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-19 04:43:29,726 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-19 04:43:29,726 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-19 04:43:29,727 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-19 04:43:29,727 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-19 04:43:29,728 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 04:43:29,744 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-19 04:43:29,744 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-19 04:43:29,747 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-19 04:43:29,750 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-19 04:43:29,750 INFO L138 SettingsManager]: * Use SBE=true [2019-12-19 04:43:29,750 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-19 04:43:29,751 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-19 04:43:29,751 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-19 04:43:29,751 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-19 04:43:29,751 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-19 04:43:29,751 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-19 04:43:29,752 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-19 04:43:29,752 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-19 04:43:29,752 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-19 04:43:29,752 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-19 04:43:29,752 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-19 04:43:29,752 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-19 04:43:29,754 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-19 04:43:29,754 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-19 04:43:29,754 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-19 04:43:29,755 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-19 04:43:29,755 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-19 04:43:29,755 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-19 04:43:29,755 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-19 04:43:29,755 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-19 04:43:29,756 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-19 04:43:29,756 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-19 04:43:29,757 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2019-12-19 04:43:29,757 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-19 04:43:29,757 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-19 04:43:30,038 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-19 04:43:30,061 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-19 04:43:30,066 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-19 04:43:30,067 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-19 04:43:30,068 INFO L275 PluginConnector]: CDTParser initialized [2019-12-19 04:43:30,069 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe013_tso.opt.i [2019-12-19 04:43:30,145 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a9cbfdd68/7f40683a99f34b25a760228aad5028fa/FLAGd583d5fce [2019-12-19 04:43:30,703 INFO L306 CDTParser]: Found 1 translation units. [2019-12-19 04:43:30,704 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe013_tso.opt.i [2019-12-19 04:43:30,723 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a9cbfdd68/7f40683a99f34b25a760228aad5028fa/FLAGd583d5fce [2019-12-19 04:43:30,992 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a9cbfdd68/7f40683a99f34b25a760228aad5028fa [2019-12-19 04:43:31,000 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-19 04:43:31,002 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-19 04:43:31,003 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-19 04:43:31,003 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-19 04:43:31,007 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-19 04:43:31,008 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 04:43:30" (1/1) ... [2019-12-19 04:43:31,011 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c07bcff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:43:31, skipping insertion in model container [2019-12-19 04:43:31,011 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 04:43:30" (1/1) ... [2019-12-19 04:43:31,019 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-19 04:43:31,074 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-19 04:43:31,540 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-19 04:43:31,555 INFO L203 MainTranslator]: Completed pre-run [2019-12-19 04:43:31,604 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-19 04:43:31,680 INFO L208 MainTranslator]: Completed translation [2019-12-19 04:43:31,681 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:43:31 WrapperNode [2019-12-19 04:43:31,681 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-19 04:43:31,682 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-19 04:43:31,682 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-19 04:43:31,682 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-19 04:43:31,691 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:43:31" (1/1) ... [2019-12-19 04:43:31,708 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:43:31" (1/1) ... [2019-12-19 04:43:31,730 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-19 04:43:31,731 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-19 04:43:31,731 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-19 04:43:31,731 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-19 04:43:31,740 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:43:31" (1/1) ... [2019-12-19 04:43:31,740 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:43:31" (1/1) ... [2019-12-19 04:43:31,743 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:43:31" (1/1) ... [2019-12-19 04:43:31,744 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:43:31" (1/1) ... [2019-12-19 04:43:31,750 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:43:31" (1/1) ... [2019-12-19 04:43:31,752 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:43:31" (1/1) ... [2019-12-19 04:43:31,754 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:43:31" (1/1) ... [2019-12-19 04:43:31,758 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-19 04:43:31,758 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-19 04:43:31,758 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-19 04:43:31,758 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-19 04:43:31,759 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:43:31" (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 04:43:31,821 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-19 04:43:31,821 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-19 04:43:31,821 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-19 04:43:31,821 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-19 04:43:31,821 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-19 04:43:31,821 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-19 04:43:31,822 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-19 04:43:31,822 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-19 04:43:31,822 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-19 04:43:31,822 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-19 04:43:31,822 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-19 04:43:31,823 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-19 04:43:31,823 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-19 04:43:31,824 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 04:43:32,203 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-19 04:43:32,204 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-19 04:43:32,205 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 04:43:32 BoogieIcfgContainer [2019-12-19 04:43:32,205 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-19 04:43:32,206 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-19 04:43:32,206 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-19 04:43:32,209 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-19 04:43:32,209 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.12 04:43:30" (1/3) ... [2019-12-19 04:43:32,210 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ae2e1e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 04:43:32, skipping insertion in model container [2019-12-19 04:43:32,211 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:43:31" (2/3) ... [2019-12-19 04:43:32,211 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ae2e1e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 04:43:32, skipping insertion in model container [2019-12-19 04:43:32,211 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 04:43:32" (3/3) ... [2019-12-19 04:43:32,213 INFO L109 eAbstractionObserver]: Analyzing ICFG safe013_tso.opt.i [2019-12-19 04:43:32,224 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-19 04:43:32,224 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-19 04:43:32,231 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-19 04:43:32,232 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-19 04:43:32,260 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:43:32,260 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:43:32,260 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:43:32,261 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:43:32,261 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:43:32,261 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:43:32,262 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:43:32,262 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:43:32,262 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:43:32,263 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:43:32,263 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:43:32,263 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:43:32,264 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:43:32,264 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:43:32,264 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:43:32,264 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:43:32,265 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:43:32,265 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:43:32,269 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:43:32,269 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:43:32,270 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:43:32,270 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:43:32,277 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:43:32,278 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:43:32,278 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:43:32,278 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:43:32,291 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:43:32,291 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:43:32,291 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:43:32,291 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:43:32,307 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-19 04:43:32,328 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-19 04:43:32,328 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-19 04:43:32,328 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-19 04:43:32,329 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-19 04:43:32,329 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-19 04:43:32,329 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-19 04:43:32,329 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-19 04:43:32,329 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-19 04:43:32,341 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 63 places, 54 transitions [2019-12-19 04:43:32,422 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1248 states. [2019-12-19 04:43:32,425 INFO L276 IsEmpty]: Start isEmpty. Operand 1248 states. [2019-12-19 04:43:32,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-12-19 04:43:32,453 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:43:32,454 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 04:43:32,455 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:43:32,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:43:32,462 INFO L82 PathProgramCache]: Analyzing trace with hash 1150370491, now seen corresponding path program 1 times [2019-12-19 04:43:32,471 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:43:32,472 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987035751] [2019-12-19 04:43:32,472 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:43:32,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:43:32,830 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 04:43:32,831 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987035751] [2019-12-19 04:43:32,832 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:43:32,832 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-19 04:43:32,833 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854024558] [2019-12-19 04:43:32,838 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-19 04:43:32,839 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:43:32,851 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-19 04:43:32,852 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-19 04:43:32,854 INFO L87 Difference]: Start difference. First operand 1248 states. Second operand 4 states. [2019-12-19 04:43:32,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:43:32,973 INFO L93 Difference]: Finished difference Result 1295 states and 3961 transitions. [2019-12-19 04:43:32,973 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-19 04:43:32,975 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2019-12-19 04:43:32,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:43:33,025 INFO L225 Difference]: With dead ends: 1295 [2019-12-19 04:43:33,026 INFO L226 Difference]: Without dead ends: 601 [2019-12-19 04:43:33,027 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 04:43:33,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 601 states. [2019-12-19 04:43:33,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 601 to 601. [2019-12-19 04:43:33,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 601 states. [2019-12-19 04:43:33,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 601 states to 601 states and 1776 transitions. [2019-12-19 04:43:33,124 INFO L78 Accepts]: Start accepts. Automaton has 601 states and 1776 transitions. Word has length 31 [2019-12-19 04:43:33,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:43:33,125 INFO L462 AbstractCegarLoop]: Abstraction has 601 states and 1776 transitions. [2019-12-19 04:43:33,125 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-19 04:43:33,125 INFO L276 IsEmpty]: Start isEmpty. Operand 601 states and 1776 transitions. [2019-12-19 04:43:33,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-12-19 04:43:33,128 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:43:33,128 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 04:43:33,129 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:43:33,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:43:33,129 INFO L82 PathProgramCache]: Analyzing trace with hash 960361128, now seen corresponding path program 1 times [2019-12-19 04:43:33,130 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:43:33,130 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147316258] [2019-12-19 04:43:33,130 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:43:33,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:43:33,306 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 04:43:33,306 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147316258] [2019-12-19 04:43:33,307 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:43:33,307 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-19 04:43:33,307 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130591130] [2019-12-19 04:43:33,309 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-19 04:43:33,309 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:43:33,310 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-19 04:43:33,310 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-19 04:43:33,310 INFO L87 Difference]: Start difference. First operand 601 states and 1776 transitions. Second operand 5 states. [2019-12-19 04:43:33,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:43:33,385 INFO L93 Difference]: Finished difference Result 601 states and 1695 transitions. [2019-12-19 04:43:33,386 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-19 04:43:33,386 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2019-12-19 04:43:33,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:43:33,391 INFO L225 Difference]: With dead ends: 601 [2019-12-19 04:43:33,391 INFO L226 Difference]: Without dead ends: 538 [2019-12-19 04:43:33,392 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 04:43:33,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2019-12-19 04:43:33,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 538. [2019-12-19 04:43:33,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 538 states. [2019-12-19 04:43:33,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 1545 transitions. [2019-12-19 04:43:33,426 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 1545 transitions. Word has length 32 [2019-12-19 04:43:33,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:43:33,426 INFO L462 AbstractCegarLoop]: Abstraction has 538 states and 1545 transitions. [2019-12-19 04:43:33,426 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-19 04:43:33,426 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 1545 transitions. [2019-12-19 04:43:33,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-12-19 04:43:33,428 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:43:33,428 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 04:43:33,429 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:43:33,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:43:33,429 INFO L82 PathProgramCache]: Analyzing trace with hash -1678383824, now seen corresponding path program 1 times [2019-12-19 04:43:33,429 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:43:33,430 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050867239] [2019-12-19 04:43:33,430 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:43:33,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:43:33,542 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 04:43:33,542 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050867239] [2019-12-19 04:43:33,543 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:43:33,543 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-19 04:43:33,543 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683535150] [2019-12-19 04:43:33,544 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-19 04:43:33,544 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:43:33,544 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-19 04:43:33,544 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-19 04:43:33,545 INFO L87 Difference]: Start difference. First operand 538 states and 1545 transitions. Second operand 6 states. [2019-12-19 04:43:33,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:43:33,644 INFO L93 Difference]: Finished difference Result 403 states and 1059 transitions. [2019-12-19 04:43:33,645 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-19 04:43:33,645 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 33 [2019-12-19 04:43:33,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:43:33,648 INFO L225 Difference]: With dead ends: 403 [2019-12-19 04:43:33,648 INFO L226 Difference]: Without dead ends: 349 [2019-12-19 04:43:33,649 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 04:43:33,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2019-12-19 04:43:33,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 349. [2019-12-19 04:43:33,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 349 states. [2019-12-19 04:43:33,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 915 transitions. [2019-12-19 04:43:33,663 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 915 transitions. Word has length 33 [2019-12-19 04:43:33,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:43:33,664 INFO L462 AbstractCegarLoop]: Abstraction has 349 states and 915 transitions. [2019-12-19 04:43:33,664 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-19 04:43:33,664 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 915 transitions. [2019-12-19 04:43:33,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-12-19 04:43:33,665 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:43:33,666 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 04:43:33,666 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:43:33,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:43:33,666 INFO L82 PathProgramCache]: Analyzing trace with hash 552941166, now seen corresponding path program 1 times [2019-12-19 04:43:33,667 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:43:33,667 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024239223] [2019-12-19 04:43:33,667 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:43:33,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:43:33,808 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 04:43:33,809 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2024239223] [2019-12-19 04:43:33,809 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:43:33,809 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-19 04:43:33,811 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695030411] [2019-12-19 04:43:33,811 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-19 04:43:33,811 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:43:33,812 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-19 04:43:33,812 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-12-19 04:43:33,812 INFO L87 Difference]: Start difference. First operand 349 states and 915 transitions. Second operand 7 states. [2019-12-19 04:43:33,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:43:33,971 INFO L93 Difference]: Finished difference Result 565 states and 1500 transitions. [2019-12-19 04:43:33,972 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-19 04:43:33,972 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 34 [2019-12-19 04:43:33,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:43:33,975 INFO L225 Difference]: With dead ends: 565 [2019-12-19 04:43:33,975 INFO L226 Difference]: Without dead ends: 253 [2019-12-19 04:43:33,976 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2019-12-19 04:43:33,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2019-12-19 04:43:33,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 253. [2019-12-19 04:43:33,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 253 states. [2019-12-19 04:43:33,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 672 transitions. [2019-12-19 04:43:33,988 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 672 transitions. Word has length 34 [2019-12-19 04:43:33,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:43:33,989 INFO L462 AbstractCegarLoop]: Abstraction has 253 states and 672 transitions. [2019-12-19 04:43:33,989 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-19 04:43:33,989 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 672 transitions. [2019-12-19 04:43:33,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-12-19 04:43:33,990 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:43:33,990 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 04:43:33,991 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:43:33,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:43:33,991 INFO L82 PathProgramCache]: Analyzing trace with hash 1740039834, now seen corresponding path program 2 times [2019-12-19 04:43:33,991 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:43:33,992 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080689527] [2019-12-19 04:43:33,992 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:43:34,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:43:34,222 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 04:43:34,222 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2080689527] [2019-12-19 04:43:34,223 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:43:34,223 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-12-19 04:43:34,223 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550943058] [2019-12-19 04:43:34,224 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-19 04:43:34,224 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:43:34,224 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-19 04:43:34,225 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-12-19 04:43:34,225 INFO L87 Difference]: Start difference. First operand 253 states and 672 transitions. Second operand 8 states. [2019-12-19 04:43:34,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:43:34,346 INFO L93 Difference]: Finished difference Result 199 states and 510 transitions. [2019-12-19 04:43:34,346 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-19 04:43:34,346 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 34 [2019-12-19 04:43:34,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:43:34,347 INFO L225 Difference]: With dead ends: 199 [2019-12-19 04:43:34,347 INFO L226 Difference]: Without dead ends: 0 [2019-12-19 04:43:34,347 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2019-12-19 04:43:34,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-19 04:43:34,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-19 04:43:34,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-19 04:43:34,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-19 04:43:34,348 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 34 [2019-12-19 04:43:34,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:43:34,349 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-19 04:43:34,349 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-19 04:43:34,349 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-19 04:43:34,349 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-19 04:43:34,354 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.12 04:43:34 BasicIcfg [2019-12-19 04:43:34,355 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-19 04:43:34,360 INFO L168 Benchmark]: Toolchain (without parser) took 3354.83 ms. Allocated memory was 144.7 MB in the beginning and 252.7 MB in the end (delta: 108.0 MB). Free memory was 100.2 MB in the beginning and 205.6 MB in the end (delta: -105.3 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. [2019-12-19 04:43:34,361 INFO L168 Benchmark]: CDTParser took 0.76 ms. Allocated memory is still 144.7 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-12-19 04:43:34,362 INFO L168 Benchmark]: CACSL2BoogieTranslator took 678.21 ms. Allocated memory was 144.7 MB in the beginning and 202.4 MB in the end (delta: 57.7 MB). Free memory was 100.0 MB in the beginning and 159.5 MB in the end (delta: -59.4 MB). Peak memory consumption was 21.7 MB. Max. memory is 7.1 GB. [2019-12-19 04:43:34,363 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.93 ms. Allocated memory is still 202.4 MB. Free memory was 159.5 MB in the beginning and 157.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-19 04:43:34,364 INFO L168 Benchmark]: Boogie Preprocessor took 26.84 ms. Allocated memory is still 202.4 MB. Free memory was 157.4 MB in the beginning and 155.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-19 04:43:34,365 INFO L168 Benchmark]: RCFGBuilder took 447.03 ms. Allocated memory is still 202.4 MB. Free memory was 155.5 MB in the beginning and 135.4 MB in the end (delta: 20.1 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB. [2019-12-19 04:43:34,366 INFO L168 Benchmark]: TraceAbstraction took 2148.59 ms. Allocated memory was 202.4 MB in the beginning and 252.7 MB in the end (delta: 50.3 MB). Free memory was 134.7 MB in the beginning and 205.6 MB in the end (delta: -70.9 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-12-19 04:43:34,371 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.76 ms. Allocated memory is still 144.7 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 678.21 ms. Allocated memory was 144.7 MB in the beginning and 202.4 MB in the end (delta: 57.7 MB). Free memory was 100.0 MB in the beginning and 159.5 MB in the end (delta: -59.4 MB). Peak memory consumption was 21.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 48.93 ms. Allocated memory is still 202.4 MB. Free memory was 159.5 MB in the beginning and 157.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 26.84 ms. Allocated memory is still 202.4 MB. Free memory was 157.4 MB in the beginning and 155.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 447.03 ms. Allocated memory is still 202.4 MB. Free memory was 155.5 MB in the beginning and 135.4 MB in the end (delta: 20.1 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2148.59 ms. Allocated memory was 202.4 MB in the beginning and 252.7 MB in the end (delta: 50.3 MB). Free memory was 134.7 MB in the beginning and 205.6 MB in the end (delta: -70.9 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, 54 locations, 1 error locations. Result: SAFE, OverallTime: 2.0s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 234 SDtfs, 337 SDslu, 576 SDs, 0 SdLazy, 82 SolverSat, 41 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 44 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1248occurred 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, 164 NumberOfCodeBlocks, 164 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 159 ConstructedInterpolants, 0 QuantifiedInterpolants, 15633 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...