/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/safe011_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-fae578e [2019-12-19 04:36:21,571 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-19 04:36:21,574 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-19 04:36:21,591 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-19 04:36:21,592 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-19 04:36:21,593 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-19 04:36:21,594 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-19 04:36:21,596 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-19 04:36:21,598 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-19 04:36:21,599 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-19 04:36:21,600 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-19 04:36:21,601 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-19 04:36:21,601 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-19 04:36:21,602 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-19 04:36:21,603 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-19 04:36:21,604 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-19 04:36:21,605 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-19 04:36:21,606 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-19 04:36:21,608 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-19 04:36:21,610 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-19 04:36:21,612 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-19 04:36:21,613 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-19 04:36:21,614 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-19 04:36:21,615 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-19 04:36:21,617 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-19 04:36:21,620 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-19 04:36:21,621 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-19 04:36:21,622 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-19 04:36:21,623 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-19 04:36:21,624 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-19 04:36:21,624 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-19 04:36:21,625 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-19 04:36:21,625 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-19 04:36:21,625 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-19 04:36:21,626 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-19 04:36:21,627 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-19 04:36:21,631 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 04:36:21,652 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-19 04:36:21,652 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-19 04:36:21,654 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-19 04:36:21,655 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-19 04:36:21,655 INFO L138 SettingsManager]: * Use SBE=true [2019-12-19 04:36:21,655 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-19 04:36:21,655 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-19 04:36:21,656 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-19 04:36:21,656 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-19 04:36:21,656 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-19 04:36:21,657 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-19 04:36:21,657 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-19 04:36:21,658 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-19 04:36:21,658 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-19 04:36:21,658 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-19 04:36:21,658 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-19 04:36:21,659 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-19 04:36:21,659 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-19 04:36:21,659 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-19 04:36:21,659 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-19 04:36:21,660 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-19 04:36:21,660 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-19 04:36:21,660 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-19 04:36:21,660 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-19 04:36:21,660 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-19 04:36:21,661 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-19 04:36:21,661 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-19 04:36:21,661 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2019-12-19 04:36:21,661 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-19 04:36:21,661 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-19 04:36:21,924 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-19 04:36:21,939 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-19 04:36:21,944 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-19 04:36:21,946 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-19 04:36:21,946 INFO L275 PluginConnector]: CDTParser initialized [2019-12-19 04:36:21,947 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe011_tso.opt.i [2019-12-19 04:36:22,021 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a7859998a/68a51c7b1038450882ba1e44c4b25994/FLAGa8ec33895 [2019-12-19 04:36:22,587 INFO L306 CDTParser]: Found 1 translation units. [2019-12-19 04:36:22,588 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe011_tso.opt.i [2019-12-19 04:36:22,602 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a7859998a/68a51c7b1038450882ba1e44c4b25994/FLAGa8ec33895 [2019-12-19 04:36:22,932 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a7859998a/68a51c7b1038450882ba1e44c4b25994 [2019-12-19 04:36:22,941 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-19 04:36:22,943 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-19 04:36:22,944 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-19 04:36:22,945 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-19 04:36:22,948 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-19 04:36:22,949 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 04:36:22" (1/1) ... [2019-12-19 04:36:22,952 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73a67259 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:36:22, skipping insertion in model container [2019-12-19 04:36:22,952 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 04:36:22" (1/1) ... [2019-12-19 04:36:22,960 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-19 04:36:23,013 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-19 04:36:23,488 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-19 04:36:23,503 INFO L203 MainTranslator]: Completed pre-run [2019-12-19 04:36:23,556 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-19 04:36:23,643 INFO L208 MainTranslator]: Completed translation [2019-12-19 04:36:23,644 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:36:23 WrapperNode [2019-12-19 04:36:23,644 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-19 04:36:23,645 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-19 04:36:23,645 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-19 04:36:23,645 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-19 04:36:23,654 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:36:23" (1/1) ... [2019-12-19 04:36:23,678 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:36:23" (1/1) ... [2019-12-19 04:36:23,696 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-19 04:36:23,696 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-19 04:36:23,696 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-19 04:36:23,696 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-19 04:36:23,703 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:36:23" (1/1) ... [2019-12-19 04:36:23,704 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:36:23" (1/1) ... [2019-12-19 04:36:23,708 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:36:23" (1/1) ... [2019-12-19 04:36:23,708 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:36:23" (1/1) ... [2019-12-19 04:36:23,714 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:36:23" (1/1) ... [2019-12-19 04:36:23,717 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:36:23" (1/1) ... [2019-12-19 04:36:23,719 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:36:23" (1/1) ... [2019-12-19 04:36:23,722 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-19 04:36:23,722 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-19 04:36:23,722 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-19 04:36:23,723 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-19 04:36:23,723 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:36:23" (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 04:36:23,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-19 04:36:23,797 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-19 04:36:23,798 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-19 04:36:23,798 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-19 04:36:23,798 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-19 04:36:23,799 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-19 04:36:23,799 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-19 04:36:23,800 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-19 04:36:23,800 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-19 04:36:23,801 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-19 04:36:23,801 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-19 04:36:23,801 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-19 04:36:23,801 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-19 04:36:23,803 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 04:36:24,183 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-19 04:36:24,183 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-19 04:36:24,185 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 04:36:24 BoogieIcfgContainer [2019-12-19 04:36:24,185 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-19 04:36:24,186 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-19 04:36:24,186 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-19 04:36:24,190 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-19 04:36:24,190 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.12 04:36:22" (1/3) ... [2019-12-19 04:36:24,191 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e36e02e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 04:36:24, skipping insertion in model container [2019-12-19 04:36:24,191 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:36:23" (2/3) ... [2019-12-19 04:36:24,192 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e36e02e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 04:36:24, skipping insertion in model container [2019-12-19 04:36:24,192 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 04:36:24" (3/3) ... [2019-12-19 04:36:24,194 INFO L109 eAbstractionObserver]: Analyzing ICFG safe011_tso.opt.i [2019-12-19 04:36:24,204 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-19 04:36:24,204 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-19 04:36:24,212 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-19 04:36:24,213 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-19 04:36:24,242 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:36:24,242 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:36:24,242 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:36:24,243 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:36:24,243 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:36:24,243 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:36:24,244 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:36:24,244 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:36:24,244 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:36:24,245 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:36:24,245 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:36:24,245 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:36:24,246 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:36:24,246 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:36:24,246 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:36:24,247 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:36:24,247 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:36:24,247 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:36:24,251 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:36:24,252 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:36:24,252 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:36:24,252 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:36:24,263 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:36:24,264 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:36:24,264 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:36:24,264 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:36:24,270 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:36:24,270 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:36:24,271 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:36:24,271 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:36:24,287 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-19 04:36:24,312 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-19 04:36:24,313 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-19 04:36:24,313 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-19 04:36:24,313 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-19 04:36:24,313 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-19 04:36:24,314 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-19 04:36:24,315 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-19 04:36:24,315 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-19 04:36:24,331 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 62 places, 53 transitions [2019-12-19 04:36:24,416 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1247 states. [2019-12-19 04:36:24,418 INFO L276 IsEmpty]: Start isEmpty. Operand 1247 states. [2019-12-19 04:36:24,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-12-19 04:36:24,434 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:36:24,436 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 04:36:24,436 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:36:24,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:36:24,442 INFO L82 PathProgramCache]: Analyzing trace with hash -942997324, now seen corresponding path program 1 times [2019-12-19 04:36:24,452 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:36:24,452 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369279894] [2019-12-19 04:36:24,452 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:36:24,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:36:24,815 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 04:36:24,816 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369279894] [2019-12-19 04:36:24,817 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:36:24,817 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-19 04:36:24,818 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670295861] [2019-12-19 04:36:24,823 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-19 04:36:24,823 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:36:24,838 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-19 04:36:24,839 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-19 04:36:24,841 INFO L87 Difference]: Start difference. First operand 1247 states. Second operand 4 states. [2019-12-19 04:36:24,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:36:24,976 INFO L93 Difference]: Finished difference Result 1294 states and 3960 transitions. [2019-12-19 04:36:24,977 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-19 04:36:24,978 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 30 [2019-12-19 04:36:24,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:36:25,017 INFO L225 Difference]: With dead ends: 1294 [2019-12-19 04:36:25,017 INFO L226 Difference]: Without dead ends: 600 [2019-12-19 04:36:25,019 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 04:36:25,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 600 states. [2019-12-19 04:36:25,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 600 to 600. [2019-12-19 04:36:25,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 600 states. [2019-12-19 04:36:25,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 600 states to 600 states and 1775 transitions. [2019-12-19 04:36:25,139 INFO L78 Accepts]: Start accepts. Automaton has 600 states and 1775 transitions. Word has length 30 [2019-12-19 04:36:25,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:36:25,140 INFO L462 AbstractCegarLoop]: Abstraction has 600 states and 1775 transitions. [2019-12-19 04:36:25,140 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-19 04:36:25,140 INFO L276 IsEmpty]: Start isEmpty. Operand 600 states and 1775 transitions. [2019-12-19 04:36:25,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-12-19 04:36:25,144 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:36:25,144 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 04:36:25,144 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:36:25,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:36:25,145 INFO L82 PathProgramCache]: Analyzing trace with hash -1860558362, now seen corresponding path program 1 times [2019-12-19 04:36:25,145 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:36:25,145 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166044355] [2019-12-19 04:36:25,145 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:36:25,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:36:25,291 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 04:36:25,291 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1166044355] [2019-12-19 04:36:25,291 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:36:25,292 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-19 04:36:25,292 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862573923] [2019-12-19 04:36:25,294 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-19 04:36:25,294 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:36:25,295 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-19 04:36:25,295 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-19 04:36:25,295 INFO L87 Difference]: Start difference. First operand 600 states and 1775 transitions. Second operand 5 states. [2019-12-19 04:36:25,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:36:25,376 INFO L93 Difference]: Finished difference Result 600 states and 1694 transitions. [2019-12-19 04:36:25,377 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-19 04:36:25,379 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2019-12-19 04:36:25,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:36:25,385 INFO L225 Difference]: With dead ends: 600 [2019-12-19 04:36:25,385 INFO L226 Difference]: Without dead ends: 537 [2019-12-19 04:36:25,392 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 04:36:25,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 537 states. [2019-12-19 04:36:25,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 537 to 537. [2019-12-19 04:36:25,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 537 states. [2019-12-19 04:36:25,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 1544 transitions. [2019-12-19 04:36:25,438 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 1544 transitions. Word has length 31 [2019-12-19 04:36:25,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:36:25,438 INFO L462 AbstractCegarLoop]: Abstraction has 537 states and 1544 transitions. [2019-12-19 04:36:25,439 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-19 04:36:25,439 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 1544 transitions. [2019-12-19 04:36:25,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-12-19 04:36:25,441 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:36:25,441 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 04:36:25,441 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:36:25,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:36:25,442 INFO L82 PathProgramCache]: Analyzing trace with hash -345314084, now seen corresponding path program 1 times [2019-12-19 04:36:25,442 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:36:25,442 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530597902] [2019-12-19 04:36:25,442 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:36:25,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:36:25,628 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 04:36:25,629 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [530597902] [2019-12-19 04:36:25,629 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:36:25,629 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-19 04:36:25,629 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410092439] [2019-12-19 04:36:25,630 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-19 04:36:25,630 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:36:25,630 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-19 04:36:25,631 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-19 04:36:25,632 INFO L87 Difference]: Start difference. First operand 537 states and 1544 transitions. Second operand 6 states. [2019-12-19 04:36:25,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:36:25,730 INFO L93 Difference]: Finished difference Result 402 states and 1058 transitions. [2019-12-19 04:36:25,731 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-19 04:36:25,731 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2019-12-19 04:36:25,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:36:25,735 INFO L225 Difference]: With dead ends: 402 [2019-12-19 04:36:25,735 INFO L226 Difference]: Without dead ends: 348 [2019-12-19 04:36:25,736 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 04:36:25,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2019-12-19 04:36:25,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 348. [2019-12-19 04:36:25,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 348 states. [2019-12-19 04:36:25,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 914 transitions. [2019-12-19 04:36:25,750 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 914 transitions. Word has length 32 [2019-12-19 04:36:25,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:36:25,750 INFO L462 AbstractCegarLoop]: Abstraction has 348 states and 914 transitions. [2019-12-19 04:36:25,750 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-19 04:36:25,750 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 914 transitions. [2019-12-19 04:36:25,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-12-19 04:36:25,753 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:36:25,753 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 04:36:25,753 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:36:25,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:36:25,753 INFO L82 PathProgramCache]: Analyzing trace with hash -1550845431, now seen corresponding path program 1 times [2019-12-19 04:36:25,754 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:36:25,754 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702998535] [2019-12-19 04:36:25,754 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:36:25,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:36:25,917 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 04:36:25,918 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [702998535] [2019-12-19 04:36:25,918 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:36:25,919 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-19 04:36:25,919 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970776441] [2019-12-19 04:36:25,919 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-19 04:36:25,921 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:36:25,921 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-19 04:36:25,922 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-12-19 04:36:25,922 INFO L87 Difference]: Start difference. First operand 348 states and 914 transitions. Second operand 7 states. [2019-12-19 04:36:26,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:36:26,140 INFO L93 Difference]: Finished difference Result 726 states and 1958 transitions. [2019-12-19 04:36:26,141 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-12-19 04:36:26,141 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2019-12-19 04:36:26,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:36:26,144 INFO L225 Difference]: With dead ends: 726 [2019-12-19 04:36:26,144 INFO L226 Difference]: Without dead ends: 252 [2019-12-19 04:36:26,144 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 04:36:26,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2019-12-19 04:36:26,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 252. [2019-12-19 04:36:26,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 252 states. [2019-12-19 04:36:26,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 671 transitions. [2019-12-19 04:36:26,158 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 671 transitions. Word has length 33 [2019-12-19 04:36:26,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:36:26,158 INFO L462 AbstractCegarLoop]: Abstraction has 252 states and 671 transitions. [2019-12-19 04:36:26,158 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-19 04:36:26,159 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 671 transitions. [2019-12-19 04:36:26,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-12-19 04:36:26,160 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:36:26,160 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 04:36:26,161 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:36:26,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:36:26,161 INFO L82 PathProgramCache]: Analyzing trace with hash -1546171413, now seen corresponding path program 2 times [2019-12-19 04:36:26,161 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:36:26,162 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262351197] [2019-12-19 04:36:26,162 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:36:26,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:36:26,368 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 04:36:26,369 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1262351197] [2019-12-19 04:36:26,369 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:36:26,369 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-12-19 04:36:26,370 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718472104] [2019-12-19 04:36:26,370 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-19 04:36:26,370 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:36:26,370 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-19 04:36:26,372 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-12-19 04:36:26,372 INFO L87 Difference]: Start difference. First operand 252 states and 671 transitions. Second operand 8 states. [2019-12-19 04:36:26,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:36:26,461 INFO L93 Difference]: Finished difference Result 198 states and 509 transitions. [2019-12-19 04:36:26,461 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-19 04:36:26,462 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 33 [2019-12-19 04:36:26,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:36:26,463 INFO L225 Difference]: With dead ends: 198 [2019-12-19 04:36:26,463 INFO L226 Difference]: Without dead ends: 0 [2019-12-19 04:36:26,463 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2019-12-19 04:36:26,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-19 04:36:26,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-19 04:36:26,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-19 04:36:26,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-19 04:36:26,464 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 33 [2019-12-19 04:36:26,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:36:26,465 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-19 04:36:26,467 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-19 04:36:26,467 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-19 04:36:26,467 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-19 04:36:26,474 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.12 04:36:26 BasicIcfg [2019-12-19 04:36:26,478 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-19 04:36:26,483 INFO L168 Benchmark]: Toolchain (without parser) took 3537.10 ms. Allocated memory was 138.4 MB in the beginning and 250.6 MB in the end (delta: 112.2 MB). Free memory was 100.5 MB in the beginning and 199.7 MB in the end (delta: -99.1 MB). Peak memory consumption was 13.1 MB. Max. memory is 7.1 GB. [2019-12-19 04:36:26,486 INFO L168 Benchmark]: CDTParser took 0.79 ms. Allocated memory is still 138.4 MB. Free memory was 120.3 MB in the beginning and 120.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-12-19 04:36:26,487 INFO L168 Benchmark]: CACSL2BoogieTranslator took 700.27 ms. Allocated memory was 138.4 MB in the beginning and 202.4 MB in the end (delta: 64.0 MB). Free memory was 100.3 MB in the beginning and 158.5 MB in the end (delta: -58.1 MB). Peak memory consumption was 24.1 MB. Max. memory is 7.1 GB. [2019-12-19 04:36:26,488 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.93 ms. Allocated memory is still 202.4 MB. Free memory was 158.5 MB in the beginning and 156.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-19 04:36:26,489 INFO L168 Benchmark]: Boogie Preprocessor took 25.85 ms. Allocated memory is still 202.4 MB. Free memory was 156.4 MB in the beginning and 155.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-12-19 04:36:26,492 INFO L168 Benchmark]: RCFGBuilder took 462.92 ms. Allocated memory is still 202.4 MB. Free memory was 155.1 MB in the beginning and 134.7 MB in the end (delta: 20.4 MB). Peak memory consumption was 20.4 MB. Max. memory is 7.1 GB. [2019-12-19 04:36:26,493 INFO L168 Benchmark]: TraceAbstraction took 2291.97 ms. Allocated memory was 202.4 MB in the beginning and 250.6 MB in the end (delta: 48.2 MB). Free memory was 134.1 MB in the beginning and 199.7 MB in the end (delta: -65.6 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-12-19 04:36:26,504 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.79 ms. Allocated memory is still 138.4 MB. Free memory was 120.3 MB in the beginning and 120.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 700.27 ms. Allocated memory was 138.4 MB in the beginning and 202.4 MB in the end (delta: 64.0 MB). Free memory was 100.3 MB in the beginning and 158.5 MB in the end (delta: -58.1 MB). Peak memory consumption was 24.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 50.93 ms. Allocated memory is still 202.4 MB. Free memory was 158.5 MB in the beginning and 156.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 25.85 ms. Allocated memory is still 202.4 MB. Free memory was 156.4 MB in the beginning and 155.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 462.92 ms. Allocated memory is still 202.4 MB. Free memory was 155.1 MB in the beginning and 134.7 MB in the end (delta: 20.4 MB). Peak memory consumption was 20.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2291.97 ms. Allocated memory was 202.4 MB in the beginning and 250.6 MB in the end (delta: 48.2 MB). Free memory was 134.1 MB in the beginning and 199.7 MB in the end (delta: -65.6 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: 228 SDtfs, 341 SDslu, 576 SDs, 0 SdLazy, 81 SolverSat, 43 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 46 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 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, 14170 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...