/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-VariableLbe.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe004_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-27 07:29:24,354 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-27 07:29:24,356 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-27 07:29:24,368 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-27 07:29:24,369 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-27 07:29:24,370 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-27 07:29:24,371 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-27 07:29:24,373 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-27 07:29:24,374 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-27 07:29:24,375 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-27 07:29:24,376 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-27 07:29:24,377 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-27 07:29:24,382 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-27 07:29:24,383 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-27 07:29:24,384 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-27 07:29:24,385 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-27 07:29:24,386 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-27 07:29:24,387 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-27 07:29:24,388 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-27 07:29:24,390 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-27 07:29:24,392 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-27 07:29:24,393 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-27 07:29:24,394 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-27 07:29:24,394 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-27 07:29:24,396 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-27 07:29:24,400 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-27 07:29:24,401 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-27 07:29:24,403 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-27 07:29:24,404 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-27 07:29:24,406 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-27 07:29:24,406 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-27 07:29:24,407 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-27 07:29:24,407 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-27 07:29:24,407 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-27 07:29:24,410 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-27 07:29:24,410 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-27 07:29:24,413 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-VariableLbe.epf [2019-12-27 07:29:24,427 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-27 07:29:24,427 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-27 07:29:24,428 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-27 07:29:24,428 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-27 07:29:24,428 INFO L138 SettingsManager]: * Use SBE=true [2019-12-27 07:29:24,429 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-27 07:29:24,429 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-27 07:29:24,429 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-27 07:29:24,429 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-27 07:29:24,429 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-27 07:29:24,430 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-27 07:29:24,430 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-27 07:29:24,430 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-27 07:29:24,430 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-27 07:29:24,430 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-27 07:29:24,430 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-27 07:29:24,431 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-27 07:29:24,431 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-27 07:29:24,431 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-27 07:29:24,431 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-27 07:29:24,431 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-27 07:29:24,432 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 07:29:24,432 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-27 07:29:24,432 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-27 07:29:24,432 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-27 07:29:24,432 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-27 07:29:24,432 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-27 07:29:24,433 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2019-12-27 07:29:24,433 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-27 07:29:24,433 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-27 07:29:24,733 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-27 07:29:24,754 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-27 07:29:24,757 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-27 07:29:24,759 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-27 07:29:24,759 INFO L275 PluginConnector]: CDTParser initialized [2019-12-27 07:29:24,760 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe004_tso.opt.i [2019-12-27 07:29:24,840 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/62432d1fd/820ad244d62a406f8136815bedb3c86d/FLAGa17f417f9 [2019-12-27 07:29:25,455 INFO L306 CDTParser]: Found 1 translation units. [2019-12-27 07:29:25,455 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe004_tso.opt.i [2019-12-27 07:29:25,479 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/62432d1fd/820ad244d62a406f8136815bedb3c86d/FLAGa17f417f9 [2019-12-27 07:29:25,750 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/62432d1fd/820ad244d62a406f8136815bedb3c86d [2019-12-27 07:29:25,758 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-27 07:29:25,760 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-27 07:29:25,762 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-27 07:29:25,762 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-27 07:29:25,765 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-27 07:29:25,766 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 07:29:25" (1/1) ... [2019-12-27 07:29:25,769 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c0a5178 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:29:25, skipping insertion in model container [2019-12-27 07:29:25,770 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 07:29:25" (1/1) ... [2019-12-27 07:29:25,779 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-27 07:29:25,820 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-27 07:29:26,348 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 07:29:26,364 INFO L203 MainTranslator]: Completed pre-run [2019-12-27 07:29:26,413 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 07:29:26,504 INFO L208 MainTranslator]: Completed translation [2019-12-27 07:29:26,504 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:29:26 WrapperNode [2019-12-27 07:29:26,505 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-27 07:29:26,505 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-27 07:29:26,505 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-27 07:29:26,506 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-27 07:29:26,513 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:29:26" (1/1) ... [2019-12-27 07:29:26,533 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:29:26" (1/1) ... [2019-12-27 07:29:26,558 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-27 07:29:26,558 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-27 07:29:26,558 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-27 07:29:26,559 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-27 07:29:26,568 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:29:26" (1/1) ... [2019-12-27 07:29:26,568 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:29:26" (1/1) ... [2019-12-27 07:29:26,571 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:29:26" (1/1) ... [2019-12-27 07:29:26,572 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:29:26" (1/1) ... [2019-12-27 07:29:26,578 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:29:26" (1/1) ... [2019-12-27 07:29:26,580 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:29:26" (1/1) ... [2019-12-27 07:29:26,582 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:29:26" (1/1) ... [2019-12-27 07:29:26,586 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-27 07:29:26,586 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-27 07:29:26,586 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-27 07:29:26,586 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-27 07:29:26,587 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:29:26" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 07:29:26,643 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-27 07:29:26,643 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-27 07:29:26,644 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-27 07:29:26,644 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-27 07:29:26,644 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-27 07:29:26,644 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-27 07:29:26,645 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-27 07:29:26,645 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-27 07:29:26,645 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-27 07:29:26,645 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-27 07:29:26,645 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-27 07:29:26,646 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-27 07:29:26,646 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-27 07:29:26,647 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-27 07:29:27,051 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-27 07:29:27,051 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-27 07:29:27,053 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 07:29:27 BoogieIcfgContainer [2019-12-27 07:29:27,053 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-27 07:29:27,055 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-27 07:29:27,055 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-27 07:29:27,058 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-27 07:29:27,059 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.12 07:29:25" (1/3) ... [2019-12-27 07:29:27,059 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f62c4a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 07:29:27, skipping insertion in model container [2019-12-27 07:29:27,060 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:29:26" (2/3) ... [2019-12-27 07:29:27,060 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f62c4a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 07:29:27, skipping insertion in model container [2019-12-27 07:29:27,060 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 07:29:27" (3/3) ... [2019-12-27 07:29:27,062 INFO L109 eAbstractionObserver]: Analyzing ICFG safe004_tso.opt.i [2019-12-27 07:29:27,073 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-27 07:29:27,073 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-27 07:29:27,080 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-27 07:29:27,081 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-27 07:29:27,109 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:29:27,110 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:29:27,110 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:29:27,110 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:29:27,111 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:29:27,111 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:29:27,112 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:29:27,112 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:29:27,112 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:29:27,112 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:29:27,113 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:29:27,113 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:29:27,113 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:29:27,114 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:29:27,114 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:29:27,114 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:29:27,114 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:29:27,115 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:29:27,119 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:29:27,119 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:29:27,119 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:29:27,120 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:29:27,126 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:29:27,126 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:29:27,126 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:29:27,127 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:29:27,129 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:29:27,130 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:29:27,130 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:29:27,130 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:29:27,147 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-27 07:29:27,163 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 07:29:27,163 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 07:29:27,163 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 07:29:27,163 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-27 07:29:27,163 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 07:29:27,163 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 07:29:27,164 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 07:29:27,164 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 07:29:27,176 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 62 places, 53 transitions [2019-12-27 07:29:27,178 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 62 places, 53 transitions [2019-12-27 07:29:27,220 INFO L132 PetriNetUnfolder]: 1/50 cut-off events. [2019-12-27 07:29:27,220 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 07:29:27,226 INFO L76 FinitePrefix]: Finished finitePrefix Result has 60 conditions, 50 events. 1/50 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 21 event pairs. 0/48 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-27 07:29:27,228 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 62 places, 53 transitions [2019-12-27 07:29:27,247 INFO L132 PetriNetUnfolder]: 1/50 cut-off events. [2019-12-27 07:29:27,247 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 07:29:27,248 INFO L76 FinitePrefix]: Finished finitePrefix Result has 60 conditions, 50 events. 1/50 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 21 event pairs. 0/48 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-27 07:29:27,250 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 450 [2019-12-27 07:29:27,251 INFO L182 etLargeBlockEncoding]: Variable Check. [2019-12-27 07:29:28,631 WARN L192 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 47 [2019-12-27 07:29:28,685 INFO L206 etLargeBlockEncoding]: Checked pairs total: 501 [2019-12-27 07:29:28,685 INFO L214 etLargeBlockEncoding]: Total number of compositions: 44 [2019-12-27 07:29:28,688 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 22 places, 17 transitions [2019-12-27 07:29:28,697 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 54 states. [2019-12-27 07:29:28,699 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states. [2019-12-27 07:29:28,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-27 07:29:28,706 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 07:29:28,706 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 07:29:28,707 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 07:29:28,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 07:29:28,712 INFO L82 PathProgramCache]: Analyzing trace with hash 1273726136, now seen corresponding path program 1 times [2019-12-27 07:29:28,719 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 07:29:28,720 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933970457] [2019-12-27 07:29:28,720 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 07:29:28,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 07:29:28,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 07:29:28,976 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933970457] [2019-12-27 07:29:28,977 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 07:29:28,977 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 07:29:28,978 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283736622] [2019-12-27 07:29:28,982 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 07:29:28,983 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 07:29:28,994 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 07:29:28,994 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 07:29:28,996 INFO L87 Difference]: Start difference. First operand 54 states. Second operand 3 states. [2019-12-27 07:29:29,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 07:29:29,032 INFO L93 Difference]: Finished difference Result 50 states and 104 transitions. [2019-12-27 07:29:29,033 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 07:29:29,034 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-12-27 07:29:29,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 07:29:29,060 INFO L225 Difference]: With dead ends: 50 [2019-12-27 07:29:29,060 INFO L226 Difference]: Without dead ends: 34 [2019-12-27 07:29:29,068 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 07:29:29,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-12-27 07:29:29,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2019-12-27 07:29:29,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-12-27 07:29:29,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 64 transitions. [2019-12-27 07:29:29,128 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 64 transitions. Word has length 8 [2019-12-27 07:29:29,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 07:29:29,129 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 64 transitions. [2019-12-27 07:29:29,129 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 07:29:29,130 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 64 transitions. [2019-12-27 07:29:29,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-27 07:29:29,132 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 07:29:29,132 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 07:29:29,133 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 07:29:29,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 07:29:29,133 INFO L82 PathProgramCache]: Analyzing trace with hash 830846190, now seen corresponding path program 1 times [2019-12-27 07:29:29,134 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 07:29:29,134 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486481957] [2019-12-27 07:29:29,135 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 07:29:29,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 07:29:29,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 07:29:29,214 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486481957] [2019-12-27 07:29:29,214 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 07:29:29,215 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 07:29:29,215 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813189023] [2019-12-27 07:29:29,216 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 07:29:29,217 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 07:29:29,217 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 07:29:29,217 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 07:29:29,217 INFO L87 Difference]: Start difference. First operand 34 states and 64 transitions. Second operand 4 states. [2019-12-27 07:29:29,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 07:29:29,243 INFO L93 Difference]: Finished difference Result 39 states and 68 transitions. [2019-12-27 07:29:29,244 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 07:29:29,244 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2019-12-27 07:29:29,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 07:29:29,245 INFO L225 Difference]: With dead ends: 39 [2019-12-27 07:29:29,245 INFO L226 Difference]: Without dead ends: 31 [2019-12-27 07:29:29,246 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-27 07:29:29,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2019-12-27 07:29:29,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2019-12-27 07:29:29,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2019-12-27 07:29:29,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 54 transitions. [2019-12-27 07:29:29,251 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 54 transitions. Word has length 9 [2019-12-27 07:29:29,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 07:29:29,252 INFO L462 AbstractCegarLoop]: Abstraction has 31 states and 54 transitions. [2019-12-27 07:29:29,252 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 07:29:29,252 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 54 transitions. [2019-12-27 07:29:29,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-27 07:29:29,253 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 07:29:29,253 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 07:29:29,253 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 07:29:29,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 07:29:29,254 INFO L82 PathProgramCache]: Analyzing trace with hash 22499836, now seen corresponding path program 1 times [2019-12-27 07:29:29,254 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 07:29:29,254 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140725762] [2019-12-27 07:29:29,254 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 07:29:29,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 07:29:29,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 07:29:29,312 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140725762] [2019-12-27 07:29:29,312 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 07:29:29,312 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 07:29:29,312 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339888727] [2019-12-27 07:29:29,313 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 07:29:29,313 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 07:29:29,313 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 07:29:29,314 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 07:29:29,314 INFO L87 Difference]: Start difference. First operand 31 states and 54 transitions. Second operand 4 states. [2019-12-27 07:29:29,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 07:29:29,340 INFO L93 Difference]: Finished difference Result 40 states and 61 transitions. [2019-12-27 07:29:29,340 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-27 07:29:29,341 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2019-12-27 07:29:29,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 07:29:29,341 INFO L225 Difference]: With dead ends: 40 [2019-12-27 07:29:29,342 INFO L226 Difference]: Without dead ends: 30 [2019-12-27 07:29:29,342 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-27 07:29:29,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2019-12-27 07:29:29,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 28. [2019-12-27 07:29:29,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2019-12-27 07:29:29,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 43 transitions. [2019-12-27 07:29:29,347 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 43 transitions. Word has length 10 [2019-12-27 07:29:29,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 07:29:29,347 INFO L462 AbstractCegarLoop]: Abstraction has 28 states and 43 transitions. [2019-12-27 07:29:29,347 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 07:29:29,347 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 43 transitions. [2019-12-27 07:29:29,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-27 07:29:29,348 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 07:29:29,348 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 07:29:29,348 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 07:29:29,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 07:29:29,349 INFO L82 PathProgramCache]: Analyzing trace with hash -183428321, now seen corresponding path program 1 times [2019-12-27 07:29:29,349 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 07:29:29,349 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013409481] [2019-12-27 07:29:29,350 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 07:29:29,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 07:29:29,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 07:29:29,389 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013409481] [2019-12-27 07:29:29,389 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 07:29:29,389 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 07:29:29,389 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230113992] [2019-12-27 07:29:29,390 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 07:29:29,390 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 07:29:29,390 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 07:29:29,391 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 07:29:29,391 INFO L87 Difference]: Start difference. First operand 28 states and 43 transitions. Second operand 3 states. [2019-12-27 07:29:29,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 07:29:29,403 INFO L93 Difference]: Finished difference Result 29 states and 42 transitions. [2019-12-27 07:29:29,403 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 07:29:29,403 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2019-12-27 07:29:29,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 07:29:29,404 INFO L225 Difference]: With dead ends: 29 [2019-12-27 07:29:29,404 INFO L226 Difference]: Without dead ends: 17 [2019-12-27 07:29:29,404 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 07:29:29,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2019-12-27 07:29:29,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2019-12-27 07:29:29,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-12-27 07:29:29,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 21 transitions. [2019-12-27 07:29:29,407 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 21 transitions. Word has length 10 [2019-12-27 07:29:29,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 07:29:29,408 INFO L462 AbstractCegarLoop]: Abstraction has 17 states and 21 transitions. [2019-12-27 07:29:29,408 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 07:29:29,408 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2019-12-27 07:29:29,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-27 07:29:29,409 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 07:29:29,409 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 07:29:29,409 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 07:29:29,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 07:29:29,409 INFO L82 PathProgramCache]: Analyzing trace with hash -1391310681, now seen corresponding path program 1 times [2019-12-27 07:29:29,410 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 07:29:29,410 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770262629] [2019-12-27 07:29:29,410 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 07:29:29,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 07:29:29,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 07:29:29,444 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770262629] [2019-12-27 07:29:29,444 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 07:29:29,444 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 07:29:29,444 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444366513] [2019-12-27 07:29:29,445 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 07:29:29,445 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 07:29:29,445 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 07:29:29,445 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 07:29:29,446 INFO L87 Difference]: Start difference. First operand 17 states and 21 transitions. Second operand 3 states. [2019-12-27 07:29:29,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 07:29:29,450 INFO L93 Difference]: Finished difference Result 16 states and 20 transitions. [2019-12-27 07:29:29,451 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 07:29:29,451 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2019-12-27 07:29:29,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 07:29:29,451 INFO L225 Difference]: With dead ends: 16 [2019-12-27 07:29:29,451 INFO L226 Difference]: Without dead ends: 0 [2019-12-27 07:29:29,452 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 07:29:29,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-27 07:29:29,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-27 07:29:29,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-27 07:29:29,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-27 07:29:29,453 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-12-27 07:29:29,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 07:29:29,453 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-27 07:29:29,453 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 07:29:29,453 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-27 07:29:29,454 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-27 07:29:29,458 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.12 07:29:29 BasicIcfg [2019-12-27 07:29:29,458 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-27 07:29:29,460 INFO L168 Benchmark]: Toolchain (without parser) took 3699.74 ms. Allocated memory was 146.3 MB in the beginning and 245.9 MB in the end (delta: 99.6 MB). Free memory was 102.9 MB in the beginning and 158.0 MB in the end (delta: -55.1 MB). Peak memory consumption was 44.6 MB. Max. memory is 7.1 GB. [2019-12-27 07:29:29,461 INFO L168 Benchmark]: CDTParser took 1.18 ms. Allocated memory is still 146.3 MB. Free memory was 122.6 MB in the beginning and 122.4 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2019-12-27 07:29:29,462 INFO L168 Benchmark]: CACSL2BoogieTranslator took 743.36 ms. Allocated memory was 146.3 MB in the beginning and 203.4 MB in the end (delta: 57.1 MB). Free memory was 102.5 MB in the beginning and 158.4 MB in the end (delta: -55.9 MB). Peak memory consumption was 20.5 MB. Max. memory is 7.1 GB. [2019-12-27 07:29:29,463 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.72 ms. Allocated memory is still 203.4 MB. Free memory was 158.4 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. [2019-12-27 07:29:29,463 INFO L168 Benchmark]: Boogie Preprocessor took 27.53 ms. Allocated memory is still 203.4 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. [2019-12-27 07:29:29,465 INFO L168 Benchmark]: RCFGBuilder took 467.27 ms. Allocated memory is still 203.4 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. [2019-12-27 07:29:29,466 INFO L168 Benchmark]: TraceAbstraction took 2403.23 ms. Allocated memory was 203.4 MB in the beginning and 245.9 MB in the end (delta: 42.5 MB). Free memory was 134.0 MB in the beginning and 158.0 MB in the end (delta: -24.0 MB). Peak memory consumption was 18.5 MB. Max. memory is 7.1 GB. [2019-12-27 07:29:29,473 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.18 ms. Allocated memory is still 146.3 MB. Free memory was 122.6 MB in the beginning and 122.4 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 743.36 ms. Allocated memory was 146.3 MB in the beginning and 203.4 MB in the end (delta: 57.1 MB). Free memory was 102.5 MB in the beginning and 158.4 MB in the end (delta: -55.9 MB). Peak memory consumption was 20.5 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 52.72 ms. Allocated memory is still 203.4 MB. Free memory was 158.4 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 27.53 ms. Allocated memory is still 203.4 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 467.27 ms. Allocated memory is still 203.4 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 2403.23 ms. Allocated memory was 203.4 MB in the beginning and 245.9 MB in the end (delta: 42.5 MB). Free memory was 134.0 MB in the beginning and 158.0 MB in the end (delta: -24.0 MB). Peak memory consumption was 18.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.5s, 62 ProgramPointsBefore, 22 ProgramPointsAfterwards, 53 TransitionsBefore, 17 TransitionsAfterwards, 450 CoEnabledTransitionPairs, 6 FixpointIterations, 13 TrivialSequentialCompositions, 28 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 0 ChoiceCompositions, 253 VarBasedMoverChecksPositive, 13 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 501 CheckedPairsTotal, 44 TotalNumberOfCompositions - 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: 2.2s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 66 SDtfs, 22 SDslu, 47 SDs, 0 SdLazy, 29 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=54occurred 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: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 48 NumberOfCodeBlocks, 48 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 43 ConstructedInterpolants, 0 QuantifiedInterpolants, 837 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...