/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.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe002_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-27 03:25:43,389 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-27 03:25:43,392 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-27 03:25:43,409 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-27 03:25:43,409 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-27 03:25:43,411 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-27 03:25:43,413 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-27 03:25:43,416 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-27 03:25:43,417 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-27 03:25:43,420 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-27 03:25:43,421 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-27 03:25:43,422 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-27 03:25:43,422 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-27 03:25:43,423 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-27 03:25:43,426 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-27 03:25:43,427 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-27 03:25:43,427 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-27 03:25:43,428 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-27 03:25:43,432 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-27 03:25:43,435 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-27 03:25:43,439 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-27 03:25:43,440 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-27 03:25:43,441 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-27 03:25:43,441 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-27 03:25:43,445 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-27 03:25:43,446 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-27 03:25:43,446 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-27 03:25:43,448 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-27 03:25:43,449 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-27 03:25:43,451 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-27 03:25:43,451 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-27 03:25:43,452 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-27 03:25:43,453 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-27 03:25:43,454 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-27 03:25:43,458 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-27 03:25:43,458 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-27 03:25:43,459 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-27 03:25:43,459 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-27 03:25:43,460 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-27 03:25:43,463 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-27 03:25:43,464 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-27 03:25:43,464 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.epf [2019-12-27 03:25:43,485 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-27 03:25:43,485 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-27 03:25:43,488 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-27 03:25:43,489 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-27 03:25:43,489 INFO L138 SettingsManager]: * Use SBE=true [2019-12-27 03:25:43,489 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-27 03:25:43,490 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-27 03:25:43,490 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-27 03:25:43,490 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-27 03:25:43,490 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-27 03:25:43,491 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-27 03:25:43,492 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-27 03:25:43,492 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-27 03:25:43,492 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-27 03:25:43,492 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-27 03:25:43,493 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-27 03:25:43,493 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-27 03:25:43,493 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-27 03:25:43,493 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-27 03:25:43,493 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-27 03:25:43,494 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-27 03:25:43,494 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 03:25:43,494 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-27 03:25:43,494 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-27 03:25:43,495 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-27 03:25:43,495 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-27 03:25:43,495 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-27 03:25:43,495 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-27 03:25:43,495 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-27 03:25:43,772 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-27 03:25:43,787 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-27 03:25:43,792 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-27 03:25:43,793 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-27 03:25:43,794 INFO L275 PluginConnector]: CDTParser initialized [2019-12-27 03:25:43,794 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe002_tso.opt.i [2019-12-27 03:25:43,874 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fe8cd2442/3cbdf1f2ebc8405b9b6985deb4156de1/FLAG9f6d781d6 [2019-12-27 03:25:44,393 INFO L306 CDTParser]: Found 1 translation units. [2019-12-27 03:25:44,395 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe002_tso.opt.i [2019-12-27 03:25:44,416 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fe8cd2442/3cbdf1f2ebc8405b9b6985deb4156de1/FLAG9f6d781d6 [2019-12-27 03:25:44,666 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fe8cd2442/3cbdf1f2ebc8405b9b6985deb4156de1 [2019-12-27 03:25:44,675 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-27 03:25:44,677 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-27 03:25:44,678 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-27 03:25:44,678 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-27 03:25:44,681 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-27 03:25:44,682 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 03:25:44" (1/1) ... [2019-12-27 03:25:44,685 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6294424c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:25:44, skipping insertion in model container [2019-12-27 03:25:44,685 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 03:25:44" (1/1) ... [2019-12-27 03:25:44,693 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-27 03:25:44,743 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-27 03:25:45,194 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 03:25:45,206 INFO L203 MainTranslator]: Completed pre-run [2019-12-27 03:25:45,253 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 03:25:45,330 INFO L208 MainTranslator]: Completed translation [2019-12-27 03:25:45,330 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:25:45 WrapperNode [2019-12-27 03:25:45,330 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-27 03:25:45,331 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-27 03:25:45,331 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-27 03:25:45,331 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-27 03:25:45,340 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:25:45" (1/1) ... [2019-12-27 03:25:45,357 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:25:45" (1/1) ... [2019-12-27 03:25:45,381 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-27 03:25:45,381 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-27 03:25:45,381 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-27 03:25:45,381 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-27 03:25:45,391 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:25:45" (1/1) ... [2019-12-27 03:25:45,392 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:25:45" (1/1) ... [2019-12-27 03:25:45,395 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:25:45" (1/1) ... [2019-12-27 03:25:45,395 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:25:45" (1/1) ... [2019-12-27 03:25:45,402 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:25:45" (1/1) ... [2019-12-27 03:25:45,404 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:25:45" (1/1) ... [2019-12-27 03:25:45,406 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:25:45" (1/1) ... [2019-12-27 03:25:45,409 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-27 03:25:45,409 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-27 03:25:45,410 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-27 03:25:45,410 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-27 03:25:45,411 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:25:45" (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 03:25:45,469 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-27 03:25:45,469 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-27 03:25:45,470 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-27 03:25:45,470 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-27 03:25:45,470 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-27 03:25:45,470 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-27 03:25:45,470 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-27 03:25:45,470 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-27 03:25:45,470 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-27 03:25:45,471 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-27 03:25:45,471 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-27 03:25:45,471 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-27 03:25:45,471 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-27 03:25:45,473 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 03:25:45,845 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-27 03:25:45,846 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-27 03:25:45,847 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 03:25:45 BoogieIcfgContainer [2019-12-27 03:25:45,847 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-27 03:25:45,849 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-27 03:25:45,849 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-27 03:25:45,852 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-27 03:25:45,852 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.12 03:25:44" (1/3) ... [2019-12-27 03:25:45,853 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28ad31d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 03:25:45, skipping insertion in model container [2019-12-27 03:25:45,853 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:25:45" (2/3) ... [2019-12-27 03:25:45,854 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28ad31d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 03:25:45, skipping insertion in model container [2019-12-27 03:25:45,854 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 03:25:45" (3/3) ... [2019-12-27 03:25:45,856 INFO L109 eAbstractionObserver]: Analyzing ICFG safe002_tso.opt.i [2019-12-27 03:25:45,866 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-27 03:25:45,867 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-27 03:25:45,874 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-27 03:25:45,875 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-27 03:25:45,903 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:25:45,904 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:25:45,904 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:25:45,905 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:25:45,905 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:25:45,905 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:25:45,906 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:25:45,906 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:25:45,906 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:25:45,906 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:25:45,907 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:25:45,907 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:25:45,908 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:25:45,908 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:25:45,908 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:25:45,908 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:25:45,909 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:25:45,909 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:25:45,913 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:25:45,913 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:25:45,913 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:25:45,914 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:25:45,919 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:25:45,920 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:25:45,920 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:25:45,920 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:25:45,923 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:25:45,924 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:25:45,924 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:25:45,924 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:25:45,944 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-27 03:25:45,966 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 03:25:45,966 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 03:25:45,966 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 03:25:45,966 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-27 03:25:45,967 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 03:25:45,967 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 03:25:45,967 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 03:25:45,967 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 03:25:45,981 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 63 places, 54 transitions [2019-12-27 03:25:45,983 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 63 places, 54 transitions [2019-12-27 03:25:46,046 INFO L132 PetriNetUnfolder]: 1/51 cut-off events. [2019-12-27 03:25:46,046 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 03:25:46,052 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 22 event pairs. 0/49 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-27 03:25:46,055 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 63 places, 54 transitions [2019-12-27 03:25:46,075 INFO L132 PetriNetUnfolder]: 1/51 cut-off events. [2019-12-27 03:25:46,075 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 03:25:46,076 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 22 event pairs. 0/49 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-27 03:25:46,078 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 450 [2019-12-27 03:25:46,079 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-27 03:25:47,210 WARN L192 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 37 [2019-12-27 03:25:47,530 WARN L192 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 49 [2019-12-27 03:25:47,599 INFO L206 etLargeBlockEncoding]: Checked pairs total: 478 [2019-12-27 03:25:47,599 INFO L214 etLargeBlockEncoding]: Total number of compositions: 47 [2019-12-27 03:25:47,603 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 22 places, 17 transitions [2019-12-27 03:25:47,614 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 54 states. [2019-12-27 03:25:47,616 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states. [2019-12-27 03:25:47,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-27 03:25:47,623 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 03:25:47,624 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 03:25:47,624 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 03:25:47,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 03:25:47,629 INFO L82 PathProgramCache]: Analyzing trace with hash 1804038140, now seen corresponding path program 1 times [2019-12-27 03:25:47,636 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 03:25:47,637 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068995710] [2019-12-27 03:25:47,637 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 03:25:47,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 03:25:47,888 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 03:25:47,889 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068995710] [2019-12-27 03:25:47,890 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 03:25:47,890 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 03:25:47,891 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149047203] [2019-12-27 03:25:47,897 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 03:25:47,897 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 03:25:47,911 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 03:25:47,912 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 03:25:47,914 INFO L87 Difference]: Start difference. First operand 54 states. Second operand 3 states. [2019-12-27 03:25:47,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 03:25:47,949 INFO L93 Difference]: Finished difference Result 50 states and 104 transitions. [2019-12-27 03:25:47,949 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 03:25:47,951 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-12-27 03:25:47,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 03:25:47,963 INFO L225 Difference]: With dead ends: 50 [2019-12-27 03:25:47,963 INFO L226 Difference]: Without dead ends: 34 [2019-12-27 03:25:47,965 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 03:25:47,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-12-27 03:25:48,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2019-12-27 03:25:48,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-12-27 03:25:48,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 64 transitions. [2019-12-27 03:25:48,011 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 64 transitions. Word has length 8 [2019-12-27 03:25:48,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 03:25:48,012 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 64 transitions. [2019-12-27 03:25:48,012 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 03:25:48,012 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 64 transitions. [2019-12-27 03:25:48,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-27 03:25:48,015 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 03:25:48,015 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 03:25:48,015 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 03:25:48,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 03:25:48,016 INFO L82 PathProgramCache]: Analyzing trace with hash 90665039, now seen corresponding path program 1 times [2019-12-27 03:25:48,016 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 03:25:48,017 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219013895] [2019-12-27 03:25:48,017 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 03:25:48,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 03:25:48,115 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 03:25:48,116 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [219013895] [2019-12-27 03:25:48,116 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 03:25:48,116 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 03:25:48,116 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354425111] [2019-12-27 03:25:48,118 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 03:25:48,118 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 03:25:48,119 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 03:25:48,119 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 03:25:48,119 INFO L87 Difference]: Start difference. First operand 34 states and 64 transitions. Second operand 4 states. [2019-12-27 03:25:48,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 03:25:48,144 INFO L93 Difference]: Finished difference Result 36 states and 63 transitions. [2019-12-27 03:25:48,145 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 03:25:48,145 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2019-12-27 03:25:48,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 03:25:48,146 INFO L225 Difference]: With dead ends: 36 [2019-12-27 03:25:48,146 INFO L226 Difference]: Without dead ends: 28 [2019-12-27 03:25:48,147 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 03:25:48,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2019-12-27 03:25:48,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2019-12-27 03:25:48,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2019-12-27 03:25:48,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 47 transitions. [2019-12-27 03:25:48,152 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 47 transitions. Word has length 9 [2019-12-27 03:25:48,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 03:25:48,153 INFO L462 AbstractCegarLoop]: Abstraction has 28 states and 47 transitions. [2019-12-27 03:25:48,153 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 03:25:48,153 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 47 transitions. [2019-12-27 03:25:48,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-27 03:25:48,154 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 03:25:48,154 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 03:25:48,154 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 03:25:48,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 03:25:48,154 INFO L82 PathProgramCache]: Analyzing trace with hash -1542654109, now seen corresponding path program 1 times [2019-12-27 03:25:48,155 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 03:25:48,155 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851272228] [2019-12-27 03:25:48,155 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 03:25:48,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 03:25:48,221 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 03:25:48,222 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851272228] [2019-12-27 03:25:48,222 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 03:25:48,222 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 03:25:48,222 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597038358] [2019-12-27 03:25:48,223 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 03:25:48,223 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 03:25:48,224 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 03:25:48,224 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 03:25:48,224 INFO L87 Difference]: Start difference. First operand 28 states and 47 transitions. Second operand 3 states. [2019-12-27 03:25:48,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 03:25:48,231 INFO L93 Difference]: Finished difference Result 27 states and 45 transitions. [2019-12-27 03:25:48,232 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 03:25:48,232 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2019-12-27 03:25:48,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 03:25:48,233 INFO L225 Difference]: With dead ends: 27 [2019-12-27 03:25:48,233 INFO L226 Difference]: Without dead ends: 27 [2019-12-27 03:25:48,233 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 03:25:48,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2019-12-27 03:25:48,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2019-12-27 03:25:48,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-12-27 03:25:48,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 45 transitions. [2019-12-27 03:25:48,238 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 45 transitions. Word has length 10 [2019-12-27 03:25:48,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 03:25:48,238 INFO L462 AbstractCegarLoop]: Abstraction has 27 states and 45 transitions. [2019-12-27 03:25:48,238 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 03:25:48,238 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 45 transitions. [2019-12-27 03:25:48,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-27 03:25:48,239 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 03:25:48,239 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 03:25:48,240 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 03:25:48,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 03:25:48,240 INFO L82 PathProgramCache]: Analyzing trace with hash -525836137, now seen corresponding path program 1 times [2019-12-27 03:25:48,240 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 03:25:48,241 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262736606] [2019-12-27 03:25:48,241 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 03:25:48,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 03:25:48,290 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 03:25:48,291 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [262736606] [2019-12-27 03:25:48,291 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 03:25:48,291 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 03:25:48,293 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409812191] [2019-12-27 03:25:48,293 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 03:25:48,293 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 03:25:48,293 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 03:25:48,294 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 03:25:48,294 INFO L87 Difference]: Start difference. First operand 27 states and 45 transitions. Second operand 4 states. [2019-12-27 03:25:48,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 03:25:48,314 INFO L93 Difference]: Finished difference Result 33 states and 51 transitions. [2019-12-27 03:25:48,314 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 03:25:48,314 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-27 03:25:48,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 03:25:48,315 INFO L225 Difference]: With dead ends: 33 [2019-12-27 03:25:48,315 INFO L226 Difference]: Without dead ends: 21 [2019-12-27 03:25:48,316 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 03:25:48,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2019-12-27 03:25:48,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2019-12-27 03:25:48,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-12-27 03:25:48,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 30 transitions. [2019-12-27 03:25:48,319 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 30 transitions. Word has length 11 [2019-12-27 03:25:48,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 03:25:48,319 INFO L462 AbstractCegarLoop]: Abstraction has 21 states and 30 transitions. [2019-12-27 03:25:48,319 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 03:25:48,320 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 30 transitions. [2019-12-27 03:25:48,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-27 03:25:48,320 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 03:25:48,320 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 03:25:48,321 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 03:25:48,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 03:25:48,321 INFO L82 PathProgramCache]: Analyzing trace with hash -577609367, now seen corresponding path program 2 times [2019-12-27 03:25:48,321 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 03:25:48,322 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2116540256] [2019-12-27 03:25:48,322 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 03:25:48,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 03:25:48,373 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 03:25:48,374 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2116540256] [2019-12-27 03:25:48,374 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 03:25:48,374 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 03:25:48,374 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91309730] [2019-12-27 03:25:48,375 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 03:25:48,375 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 03:25:48,375 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 03:25:48,375 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 03:25:48,376 INFO L87 Difference]: Start difference. First operand 21 states and 30 transitions. Second operand 4 states. [2019-12-27 03:25:48,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 03:25:48,389 INFO L93 Difference]: Finished difference Result 20 states and 29 transitions. [2019-12-27 03:25:48,390 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 03:25:48,390 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-27 03:25:48,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 03:25:48,390 INFO L225 Difference]: With dead ends: 20 [2019-12-27 03:25:48,390 INFO L226 Difference]: Without dead ends: 0 [2019-12-27 03:25:48,391 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 03:25:48,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-27 03:25:48,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-27 03:25:48,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-27 03:25:48,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-27 03:25:48,392 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-12-27 03:25:48,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 03:25:48,392 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-27 03:25:48,392 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 03:25:48,392 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-27 03:25:48,392 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-27 03:25:48,396 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.12 03:25:48 BasicIcfg [2019-12-27 03:25:48,396 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-27 03:25:48,398 INFO L168 Benchmark]: Toolchain (without parser) took 3721.98 ms. Allocated memory was 145.2 MB in the beginning and 242.2 MB in the end (delta: 97.0 MB). Free memory was 104.0 MB in the beginning and 123.8 MB in the end (delta: -19.8 MB). Peak memory consumption was 77.2 MB. Max. memory is 7.1 GB. [2019-12-27 03:25:48,399 INFO L168 Benchmark]: CDTParser took 0.44 ms. Allocated memory is still 145.2 MB. Free memory was 123.7 MB in the beginning and 123.5 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-12-27 03:25:48,401 INFO L168 Benchmark]: CACSL2BoogieTranslator took 653.23 ms. Allocated memory was 145.2 MB in the beginning and 203.9 MB in the end (delta: 58.7 MB). Free memory was 103.5 MB in the beginning and 161.1 MB in the end (delta: -57.6 MB). Peak memory consumption was 21.7 MB. Max. memory is 7.1 GB. [2019-12-27 03:25:48,404 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.63 ms. Allocated memory is still 203.9 MB. Free memory was 161.1 MB in the beginning and 159.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-27 03:25:48,407 INFO L168 Benchmark]: Boogie Preprocessor took 28.06 ms. Allocated memory is still 203.9 MB. Free memory was 159.1 MB in the beginning and 157.2 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2019-12-27 03:25:48,408 INFO L168 Benchmark]: RCFGBuilder took 437.95 ms. Allocated memory is still 203.9 MB. Free memory was 157.2 MB in the beginning and 136.9 MB in the end (delta: 20.4 MB). Peak memory consumption was 20.4 MB. Max. memory is 7.1 GB. [2019-12-27 03:25:48,409 INFO L168 Benchmark]: TraceAbstraction took 2548.01 ms. Allocated memory was 203.9 MB in the beginning and 242.2 MB in the end (delta: 38.3 MB). Free memory was 136.9 MB in the beginning and 123.8 MB in the end (delta: 13.1 MB). Peak memory consumption was 51.4 MB. Max. memory is 7.1 GB. [2019-12-27 03:25:48,418 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.44 ms. Allocated memory is still 145.2 MB. Free memory was 123.7 MB in the beginning and 123.5 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 653.23 ms. Allocated memory was 145.2 MB in the beginning and 203.9 MB in the end (delta: 58.7 MB). Free memory was 103.5 MB in the beginning and 161.1 MB in the end (delta: -57.6 MB). Peak memory consumption was 21.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 49.63 ms. Allocated memory is still 203.9 MB. Free memory was 161.1 MB in the beginning and 159.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 28.06 ms. Allocated memory is still 203.9 MB. Free memory was 159.1 MB in the beginning and 157.2 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 437.95 ms. Allocated memory is still 203.9 MB. Free memory was 157.2 MB in the beginning and 136.9 MB in the end (delta: 20.4 MB). Peak memory consumption was 20.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2548.01 ms. Allocated memory was 203.9 MB in the beginning and 242.2 MB in the end (delta: 38.3 MB). Free memory was 136.9 MB in the beginning and 123.8 MB in the end (delta: 13.1 MB). Peak memory consumption was 51.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.6s, 63 ProgramPointsBefore, 22 ProgramPointsAfterwards, 54 TransitionsBefore, 17 TransitionsAfterwards, 450 CoEnabledTransitionPairs, 8 FixpointIterations, 14 TrivialSequentialCompositions, 30 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 0 ChoiceCompositions, 232 VarBasedMoverChecksPositive, 13 VarBasedMoverChecksNegative, 2 SemBasedMoverChecksPositive, 13 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.1s, 0 MoverChecksTotal, 478 CheckedPairsTotal, 47 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: 2.4s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 58 SDtfs, 28 SDslu, 40 SDs, 0 SdLazy, 24 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 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, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 49 NumberOfCodeBlocks, 49 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 44 ConstructedInterpolants, 0 QuantifiedInterpolants, 1102 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...