/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-SemanticLbe-MCR.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe018_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-27 18:24:27,272 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-27 18:24:27,275 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-27 18:24:27,294 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-27 18:24:27,294 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-27 18:24:27,297 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-27 18:24:27,298 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-27 18:24:27,303 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-27 18:24:27,305 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-27 18:24:27,312 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-27 18:24:27,313 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-27 18:24:27,314 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-27 18:24:27,314 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-27 18:24:27,315 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-27 18:24:27,316 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-27 18:24:27,317 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-27 18:24:27,318 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-27 18:24:27,320 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-27 18:24:27,322 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-27 18:24:27,328 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-27 18:24:27,331 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-27 18:24:27,333 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-27 18:24:27,334 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-27 18:24:27,335 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-27 18:24:27,337 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-27 18:24:27,342 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-27 18:24:27,343 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-27 18:24:27,343 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-27 18:24:27,344 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-27 18:24:27,345 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-27 18:24:27,345 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-27 18:24:27,346 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-27 18:24:27,346 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-27 18:24:27,346 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-27 18:24:27,347 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-27 18:24:27,348 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-27 18:24:27,348 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-SemanticLbe-MCR.epf [2019-12-27 18:24:27,365 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-27 18:24:27,365 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-27 18:24:27,366 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-27 18:24:27,366 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-27 18:24:27,368 INFO L138 SettingsManager]: * Use SBE=true [2019-12-27 18:24:27,369 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-27 18:24:27,369 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-27 18:24:27,369 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-27 18:24:27,369 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-27 18:24:27,369 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-27 18:24:27,370 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-27 18:24:27,370 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-27 18:24:27,370 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-27 18:24:27,370 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-27 18:24:27,370 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-27 18:24:27,371 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-27 18:24:27,371 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-27 18:24:27,371 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-27 18:24:27,371 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-27 18:24:27,371 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-27 18:24:27,373 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-27 18:24:27,373 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 18:24:27,374 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-27 18:24:27,374 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-27 18:24:27,374 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-27 18:24:27,374 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-27 18:24:27,374 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-27 18:24:27,375 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2019-12-27 18:24:27,375 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-27 18:24:27,375 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2019-12-27 18:24:27,375 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-27 18:24:27,672 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-27 18:24:27,693 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-27 18:24:27,696 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-27 18:24:27,697 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-27 18:24:27,698 INFO L275 PluginConnector]: CDTParser initialized [2019-12-27 18:24:27,699 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe018_tso.oepc.i [2019-12-27 18:24:27,773 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/098d8e3f4/45dcfaa5c32a415ea72f9f077076f42c/FLAG8a4b95062 [2019-12-27 18:24:28,328 INFO L306 CDTParser]: Found 1 translation units. [2019-12-27 18:24:28,331 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe018_tso.oepc.i [2019-12-27 18:24:28,347 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/098d8e3f4/45dcfaa5c32a415ea72f9f077076f42c/FLAG8a4b95062 [2019-12-27 18:24:28,670 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/098d8e3f4/45dcfaa5c32a415ea72f9f077076f42c [2019-12-27 18:24:28,680 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-27 18:24:28,682 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-27 18:24:28,683 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-27 18:24:28,683 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-27 18:24:28,687 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-27 18:24:28,688 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 06:24:28" (1/1) ... [2019-12-27 18:24:28,691 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4feccf86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:24:28, skipping insertion in model container [2019-12-27 18:24:28,691 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 06:24:28" (1/1) ... [2019-12-27 18:24:28,699 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-27 18:24:28,757 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-27 18:24:29,298 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 18:24:29,312 INFO L203 MainTranslator]: Completed pre-run [2019-12-27 18:24:29,387 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 18:24:29,455 INFO L208 MainTranslator]: Completed translation [2019-12-27 18:24:29,456 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:24:29 WrapperNode [2019-12-27 18:24:29,456 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-27 18:24:29,457 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-27 18:24:29,457 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-27 18:24:29,457 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-27 18:24:29,466 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:24:29" (1/1) ... [2019-12-27 18:24:29,483 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:24:29" (1/1) ... [2019-12-27 18:24:29,506 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-27 18:24:29,506 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-27 18:24:29,507 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-27 18:24:29,507 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-27 18:24:29,516 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:24:29" (1/1) ... [2019-12-27 18:24:29,516 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:24:29" (1/1) ... [2019-12-27 18:24:29,519 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:24:29" (1/1) ... [2019-12-27 18:24:29,519 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:24:29" (1/1) ... [2019-12-27 18:24:29,526 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:24:29" (1/1) ... [2019-12-27 18:24:29,528 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:24:29" (1/1) ... [2019-12-27 18:24:29,530 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:24:29" (1/1) ... [2019-12-27 18:24:29,533 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-27 18:24:29,534 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-27 18:24:29,534 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-27 18:24:29,534 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-27 18:24:29,535 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:24:29" (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 18:24:29,603 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-27 18:24:29,603 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-27 18:24:29,603 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-27 18:24:29,603 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-27 18:24:29,603 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-27 18:24:29,604 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-27 18:24:29,604 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-27 18:24:29,604 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-27 18:24:29,604 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-27 18:24:29,604 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-27 18:24:29,604 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-27 18:24:29,605 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-27 18:24:29,605 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-27 18:24:29,607 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 18:24:29,954 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-27 18:24:29,954 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-27 18:24:29,956 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 06:24:29 BoogieIcfgContainer [2019-12-27 18:24:29,956 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-27 18:24:29,957 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-27 18:24:29,957 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-27 18:24:29,960 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-27 18:24:29,960 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.12 06:24:28" (1/3) ... [2019-12-27 18:24:29,961 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11939279 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 06:24:29, skipping insertion in model container [2019-12-27 18:24:29,962 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:24:29" (2/3) ... [2019-12-27 18:24:29,962 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11939279 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 06:24:29, skipping insertion in model container [2019-12-27 18:24:29,962 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 06:24:29" (3/3) ... [2019-12-27 18:24:29,964 INFO L109 eAbstractionObserver]: Analyzing ICFG safe018_tso.oepc.i [2019-12-27 18:24:29,973 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-27 18:24:29,974 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-27 18:24:29,981 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-27 18:24:29,983 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-27 18:24:30,012 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:24:30,013 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:24:30,013 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:24:30,015 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:24:30,015 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:24:30,016 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:24:30,016 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:24:30,017 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:24:30,017 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:24:30,017 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:24:30,017 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:24:30,021 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:24:30,021 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:24:30,022 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:24:30,022 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:24:30,022 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:24:30,023 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:24:30,023 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:24:30,028 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:24:30,029 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:24:30,029 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:24:30,029 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:24:30,041 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:24:30,043 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:24:30,043 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:24:30,043 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:24:30,046 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:24:30,046 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:24:30,047 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:24:30,047 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:24:30,062 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-27 18:24:30,083 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 18:24:30,083 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 18:24:30,083 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 18:24:30,083 INFO L376 AbstractCegarLoop]: Backedges is MCR [2019-12-27 18:24:30,084 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 18:24:30,084 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 18:24:30,084 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 18:24:30,084 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 18:24:30,098 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 63 places, 54 transitions [2019-12-27 18:24:30,100 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 63 places, 54 transitions [2019-12-27 18:24:30,145 INFO L132 PetriNetUnfolder]: 1/51 cut-off events. [2019-12-27 18:24:30,145 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 18:24:30,151 INFO L76 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 51 events. 1/51 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 21 event pairs. 0/49 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-27 18:24:30,153 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 63 places, 54 transitions [2019-12-27 18:24:30,172 INFO L132 PetriNetUnfolder]: 1/51 cut-off events. [2019-12-27 18:24:30,172 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 18:24:30,174 INFO L76 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 51 events. 1/51 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 21 event pairs. 0/49 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-27 18:24:30,176 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 450 [2019-12-27 18:24:30,177 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-27 18:24:31,758 WARN L192 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 49 [2019-12-27 18:24:31,908 INFO L206 etLargeBlockEncoding]: Checked pairs total: 482 [2019-12-27 18:24:31,908 INFO L214 etLargeBlockEncoding]: Total number of compositions: 45 [2019-12-27 18:24:31,911 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 21 places, 15 transitions [2019-12-27 18:24:31,920 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 46 states. [2019-12-27 18:24:31,922 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2019-12-27 18:24:31,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-27 18:24:31,929 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 18:24:31,930 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 18:24:31,930 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 18:24:31,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 18:24:31,935 INFO L82 PathProgramCache]: Analyzing trace with hash -1824698528, now seen corresponding path program 1 times [2019-12-27 18:24:31,945 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 18:24:31,945 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123951985] [2019-12-27 18:24:31,945 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 18:24:32,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 18:24:32,177 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 18:24:32,178 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2123951985] [2019-12-27 18:24:32,179 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 18:24:32,180 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 18:24:32,180 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [564666836] [2019-12-27 18:24:32,182 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 18:24:32,188 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 18:24:32,201 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 9 states and 8 transitions. [2019-12-27 18:24:32,201 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 18:24:32,205 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 18:24:32,205 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 18:24:32,205 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 18:24:32,216 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 18:24:32,217 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 18:24:32,219 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 3 states. [2019-12-27 18:24:32,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 18:24:32,256 INFO L93 Difference]: Finished difference Result 42 states and 84 transitions. [2019-12-27 18:24:32,257 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 18:24:32,259 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-12-27 18:24:32,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 18:24:32,289 INFO L225 Difference]: With dead ends: 42 [2019-12-27 18:24:32,290 INFO L226 Difference]: Without dead ends: 34 [2019-12-27 18:24:32,294 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 18:24:32,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-12-27 18:24:32,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2019-12-27 18:24:32,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-12-27 18:24:32,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 64 transitions. [2019-12-27 18:24:32,343 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 64 transitions. Word has length 8 [2019-12-27 18:24:32,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 18:24:32,344 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 64 transitions. [2019-12-27 18:24:32,344 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 18:24:32,345 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 64 transitions. [2019-12-27 18:24:32,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-27 18:24:32,347 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 18:24:32,348 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 18:24:32,351 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 18:24:32,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 18:24:32,352 INFO L82 PathProgramCache]: Analyzing trace with hash 1592223242, now seen corresponding path program 1 times [2019-12-27 18:24:32,353 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 18:24:32,357 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304625535] [2019-12-27 18:24:32,357 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 18:24:32,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 18:24:32,458 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 18:24:32,460 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [304625535] [2019-12-27 18:24:32,460 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 18:24:32,460 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 18:24:32,460 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [505684484] [2019-12-27 18:24:32,461 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 18:24:32,462 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 18:24:32,465 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 14 states and 17 transitions. [2019-12-27 18:24:32,466 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 18:24:32,467 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 18:24:32,468 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 18:24:32,468 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 18:24:32,469 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 18:24:32,469 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 18:24:32,469 INFO L87 Difference]: Start difference. First operand 34 states and 64 transitions. Second operand 4 states. [2019-12-27 18:24:32,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 18:24:32,508 INFO L93 Difference]: Finished difference Result 36 states and 63 transitions. [2019-12-27 18:24:32,508 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 18:24:32,508 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2019-12-27 18:24:32,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 18:24:32,509 INFO L225 Difference]: With dead ends: 36 [2019-12-27 18:24:32,509 INFO L226 Difference]: Without dead ends: 22 [2019-12-27 18:24:32,510 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 18:24:32,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2019-12-27 18:24:32,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2019-12-27 18:24:32,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-12-27 18:24:32,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 33 transitions. [2019-12-27 18:24:32,514 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 33 transitions. Word has length 9 [2019-12-27 18:24:32,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 18:24:32,514 INFO L462 AbstractCegarLoop]: Abstraction has 22 states and 33 transitions. [2019-12-27 18:24:32,514 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 18:24:32,514 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 33 transitions. [2019-12-27 18:24:32,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-27 18:24:32,515 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 18:24:32,515 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 18:24:32,515 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 18:24:32,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 18:24:32,516 INFO L82 PathProgramCache]: Analyzing trace with hash -1186765067, now seen corresponding path program 1 times [2019-12-27 18:24:32,516 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 18:24:32,516 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195246946] [2019-12-27 18:24:32,516 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 18:24:32,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 18:24:32,607 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 18:24:32,608 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195246946] [2019-12-27 18:24:32,608 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 18:24:32,609 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 18:24:32,609 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1693435480] [2019-12-27 18:24:32,609 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 18:24:32,610 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 18:24:32,613 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 11 states and 10 transitions. [2019-12-27 18:24:32,614 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 18:24:32,614 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 18:24:32,614 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 18:24:32,614 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 18:24:32,615 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 18:24:32,615 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 18:24:32,615 INFO L87 Difference]: Start difference. First operand 22 states and 33 transitions. Second operand 4 states. [2019-12-27 18:24:32,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 18:24:32,635 INFO L93 Difference]: Finished difference Result 25 states and 35 transitions. [2019-12-27 18:24:32,635 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 18:24:32,636 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2019-12-27 18:24:32,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 18:24:32,636 INFO L225 Difference]: With dead ends: 25 [2019-12-27 18:24:32,637 INFO L226 Difference]: Without dead ends: 17 [2019-12-27 18:24:32,637 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 18:24:32,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2019-12-27 18:24:32,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2019-12-27 18:24:32,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-12-27 18:24:32,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 21 transitions. [2019-12-27 18:24:32,640 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 21 transitions. Word has length 10 [2019-12-27 18:24:32,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 18:24:32,640 INFO L462 AbstractCegarLoop]: Abstraction has 17 states and 21 transitions. [2019-12-27 18:24:32,640 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 18:24:32,641 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2019-12-27 18:24:32,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-27 18:24:32,641 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 18:24:32,641 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 18:24:32,641 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 18:24:32,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 18:24:32,642 INFO L82 PathProgramCache]: Analyzing trace with hash -1690191566, now seen corresponding path program 1 times [2019-12-27 18:24:32,642 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 18:24:32,642 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013728557] [2019-12-27 18:24:32,643 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 18:24:32,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 18:24:32,685 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 18:24:32,686 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013728557] [2019-12-27 18:24:32,686 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 18:24:32,686 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 18:24:32,686 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [819641024] [2019-12-27 18:24:32,686 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 18:24:32,688 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 18:24:32,690 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 14 states and 15 transitions. [2019-12-27 18:24:32,690 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 18:24:32,691 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 18:24:32,691 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 18:24:32,691 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 18:24:32,691 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 18:24:32,692 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 18:24:32,692 INFO L87 Difference]: Start difference. First operand 17 states and 21 transitions. Second operand 4 states. [2019-12-27 18:24:32,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 18:24:32,706 INFO L93 Difference]: Finished difference Result 16 states and 20 transitions. [2019-12-27 18:24:32,706 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 18:24:32,706 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-27 18:24:32,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 18:24:32,706 INFO L225 Difference]: With dead ends: 16 [2019-12-27 18:24:32,706 INFO L226 Difference]: Without dead ends: 0 [2019-12-27 18:24:32,707 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 18:24:32,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-27 18:24:32,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-27 18:24:32,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-27 18:24:32,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-27 18:24:32,708 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-12-27 18:24:32,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 18:24:32,708 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-27 18:24:32,708 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 18:24:32,708 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-27 18:24:32,709 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-27 18:24:32,712 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.12 06:24:32 BasicIcfg [2019-12-27 18:24:32,713 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-27 18:24:32,715 INFO L168 Benchmark]: Toolchain (without parser) took 4032.67 ms. Allocated memory was 138.4 MB in the beginning and 247.5 MB in the end (delta: 109.1 MB). Free memory was 101.9 MB in the beginning and 136.5 MB in the end (delta: -34.6 MB). Peak memory consumption was 74.4 MB. Max. memory is 7.1 GB. [2019-12-27 18:24:32,716 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 138.4 MB. Free memory was 121.6 MB in the beginning and 121.4 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-12-27 18:24:32,717 INFO L168 Benchmark]: CACSL2BoogieTranslator took 773.28 ms. Allocated memory was 138.4 MB in the beginning and 201.9 MB in the end (delta: 63.4 MB). Free memory was 101.5 MB in the beginning and 157.1 MB in the end (delta: -55.6 MB). Peak memory consumption was 24.4 MB. Max. memory is 7.1 GB. [2019-12-27 18:24:32,718 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.18 ms. Allocated memory is still 201.9 MB. Free memory was 157.1 MB in the beginning and 154.5 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. [2019-12-27 18:24:32,719 INFO L168 Benchmark]: Boogie Preprocessor took 27.02 ms. Allocated memory is still 201.9 MB. Free memory was 154.5 MB in the beginning and 153.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-12-27 18:24:32,719 INFO L168 Benchmark]: RCFGBuilder took 422.29 ms. Allocated memory is still 201.9 MB. Free memory was 153.1 MB in the beginning and 132.8 MB in the end (delta: 20.3 MB). Peak memory consumption was 20.3 MB. Max. memory is 7.1 GB. [2019-12-27 18:24:32,720 INFO L168 Benchmark]: TraceAbstraction took 2755.84 ms. Allocated memory was 201.9 MB in the beginning and 247.5 MB in the end (delta: 45.6 MB). Free memory was 132.8 MB in the beginning and 136.5 MB in the end (delta: -3.7 MB). Peak memory consumption was 41.9 MB. Max. memory is 7.1 GB. [2019-12-27 18:24:32,725 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 138.4 MB. Free memory was 121.6 MB in the beginning and 121.4 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 773.28 ms. Allocated memory was 138.4 MB in the beginning and 201.9 MB in the end (delta: 63.4 MB). Free memory was 101.5 MB in the beginning and 157.1 MB in the end (delta: -55.6 MB). Peak memory consumption was 24.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 49.18 ms. Allocated memory is still 201.9 MB. Free memory was 157.1 MB in the beginning and 154.5 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 27.02 ms. Allocated memory is still 201.9 MB. Free memory was 154.5 MB in the beginning and 153.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 422.29 ms. Allocated memory is still 201.9 MB. Free memory was 153.1 MB in the beginning and 132.8 MB in the end (delta: 20.3 MB). Peak memory consumption was 20.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2755.84 ms. Allocated memory was 201.9 MB in the beginning and 247.5 MB in the end (delta: 45.6 MB). Free memory was 132.8 MB in the beginning and 136.5 MB in the end (delta: -3.7 MB). Peak memory consumption was 41.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.8s, 63 ProgramPointsBefore, 21 ProgramPointsAfterwards, 54 TransitionsBefore, 15 TransitionsAfterwards, 450 CoEnabledTransitionPairs, 7 FixpointIterations, 14 TrivialSequentialCompositions, 28 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 1 ChoiceCompositions, 243 VarBasedMoverChecksPositive, 13 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 17 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 0 MoverChecksTotal, 482 CheckedPairsTotal, 45 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, 54 locations, 1 error locations. Result: SAFE, OverallTime: 2.6s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 42 SDtfs, 21 SDslu, 34 SDs, 0 SdLazy, 22 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=46occurred 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, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 38 NumberOfCodeBlocks, 38 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 34 ConstructedInterpolants, 0 QuantifiedInterpolants, 802 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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...