/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe030_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-fae578e [2019-12-19 05:21:47,357 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-19 05:21:47,359 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-19 05:21:47,378 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-19 05:21:47,378 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-19 05:21:47,380 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-19 05:21:47,382 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-19 05:21:47,392 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-19 05:21:47,396 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-19 05:21:47,400 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-19 05:21:47,402 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-19 05:21:47,404 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-19 05:21:47,404 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-19 05:21:47,406 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-19 05:21:47,409 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-19 05:21:47,410 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-19 05:21:47,412 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-19 05:21:47,413 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-19 05:21:47,414 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-19 05:21:47,420 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-19 05:21:47,425 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-19 05:21:47,430 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-19 05:21:47,431 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-19 05:21:47,432 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-19 05:21:47,435 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-19 05:21:47,435 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-19 05:21:47,435 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-19 05:21:47,437 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-19 05:21:47,439 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-19 05:21:47,440 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-19 05:21:47,440 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-19 05:21:47,441 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-19 05:21:47,441 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-19 05:21:47,442 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-19 05:21:47,444 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-19 05:21:47,444 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-19 05:21:47,445 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-19 05:21:47,445 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-19 05:21:47,445 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-19 05:21:47,446 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-19 05:21:47,449 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-19 05:21:47,450 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2019-12-19 05:21:47,478 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-19 05:21:47,479 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-19 05:21:47,480 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-19 05:21:47,480 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-19 05:21:47,480 INFO L138 SettingsManager]: * Use SBE=true [2019-12-19 05:21:47,480 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-19 05:21:47,481 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-19 05:21:47,481 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-19 05:21:47,481 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-19 05:21:47,481 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-19 05:21:47,481 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-19 05:21:47,482 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-19 05:21:47,482 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-19 05:21:47,482 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-19 05:21:47,482 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-19 05:21:47,482 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-19 05:21:47,482 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-19 05:21:47,483 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-19 05:21:47,483 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-19 05:21:47,483 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-19 05:21:47,483 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-19 05:21:47,483 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-19 05:21:47,484 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-19 05:21:47,484 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-19 05:21:47,484 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-19 05:21:47,484 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-19 05:21:47,484 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-19 05:21:47,485 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2019-12-19 05:21:47,485 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-19 05:21:47,485 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-19 05:21:47,765 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-19 05:21:47,778 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-19 05:21:47,781 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-19 05:21:47,782 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-19 05:21:47,782 INFO L275 PluginConnector]: CDTParser initialized [2019-12-19 05:21:47,783 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe030_pso.opt.i [2019-12-19 05:21:47,839 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/862060f3b/a10c978e14cb4226adad14024eb7c9f8/FLAGf7cc27b64 [2019-12-19 05:21:48,351 INFO L306 CDTParser]: Found 1 translation units. [2019-12-19 05:21:48,351 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe030_pso.opt.i [2019-12-19 05:21:48,369 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/862060f3b/a10c978e14cb4226adad14024eb7c9f8/FLAGf7cc27b64 [2019-12-19 05:21:48,668 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/862060f3b/a10c978e14cb4226adad14024eb7c9f8 [2019-12-19 05:21:48,679 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-19 05:21:48,681 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-19 05:21:48,682 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-19 05:21:48,683 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-19 05:21:48,686 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-19 05:21:48,687 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 05:21:48" (1/1) ... [2019-12-19 05:21:48,690 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2983cbdb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:21:48, skipping insertion in model container [2019-12-19 05:21:48,691 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 05:21:48" (1/1) ... [2019-12-19 05:21:48,698 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-19 05:21:48,743 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-19 05:21:49,360 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-19 05:21:49,378 INFO L203 MainTranslator]: Completed pre-run [2019-12-19 05:21:49,471 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-19 05:21:49,543 INFO L208 MainTranslator]: Completed translation [2019-12-19 05:21:49,543 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:21:49 WrapperNode [2019-12-19 05:21:49,543 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-19 05:21:49,544 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-19 05:21:49,544 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-19 05:21:49,544 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-19 05:21:49,553 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:21:49" (1/1) ... [2019-12-19 05:21:49,576 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:21:49" (1/1) ... [2019-12-19 05:21:49,617 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-19 05:21:49,617 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-19 05:21:49,617 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-19 05:21:49,617 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-19 05:21:49,627 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:21:49" (1/1) ... [2019-12-19 05:21:49,627 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:21:49" (1/1) ... [2019-12-19 05:21:49,632 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:21:49" (1/1) ... [2019-12-19 05:21:49,633 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:21:49" (1/1) ... [2019-12-19 05:21:49,643 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:21:49" (1/1) ... [2019-12-19 05:21:49,647 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:21:49" (1/1) ... [2019-12-19 05:21:49,650 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:21:49" (1/1) ... [2019-12-19 05:21:49,655 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-19 05:21:49,655 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-19 05:21:49,655 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-19 05:21:49,656 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-19 05:21:49,657 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:21:49" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-19 05:21:49,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-19 05:21:49,719 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-19 05:21:49,719 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-19 05:21:49,720 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-19 05:21:49,720 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-19 05:21:49,720 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-19 05:21:49,720 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-19 05:21:49,720 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-19 05:21:49,721 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-19 05:21:49,721 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-19 05:21:49,721 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-19 05:21:49,721 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-19 05:21:49,721 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-19 05:21:49,723 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-19 05:21:50,445 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-19 05:21:50,446 INFO L287 CfgBuilder]: Removed 8 assume(true) statements. [2019-12-19 05:21:50,447 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 05:21:50 BoogieIcfgContainer [2019-12-19 05:21:50,447 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-19 05:21:50,449 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-19 05:21:50,449 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-19 05:21:50,453 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-19 05:21:50,453 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.12 05:21:48" (1/3) ... [2019-12-19 05:21:50,454 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57582b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 05:21:50, skipping insertion in model container [2019-12-19 05:21:50,454 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:21:49" (2/3) ... [2019-12-19 05:21:50,455 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57582b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 05:21:50, skipping insertion in model container [2019-12-19 05:21:50,455 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 05:21:50" (3/3) ... [2019-12-19 05:21:50,456 INFO L109 eAbstractionObserver]: Analyzing ICFG safe030_pso.opt.i [2019-12-19 05:21:50,468 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-19 05:21:50,468 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-19 05:21:50,476 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-12-19 05:21:50,477 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-19 05:21:50,517 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:21:50,518 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:21:50,518 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:21:50,518 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:21:50,519 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:21:50,519 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:21:50,520 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:21:50,520 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:21:50,521 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:21:50,521 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:21:50,521 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:21:50,522 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:21:50,522 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:21:50,522 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:21:50,522 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:21:50,523 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:21:50,525 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:21:50,526 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:21:50,526 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:21:50,526 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:21:50,526 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:21:50,527 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:21:50,527 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:21:50,527 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:21:50,527 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:21:50,528 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:21:50,528 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:21:50,528 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:21:50,528 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:21:50,529 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:21:50,529 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:21:50,529 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:21:50,529 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:21:50,530 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:21:50,532 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:21:50,532 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:21:50,534 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:21:50,534 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:21:50,535 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:21:50,536 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:21:50,537 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:21:50,537 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:21:50,538 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:21:50,538 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:21:50,539 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:21:50,539 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:21:50,539 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:21:50,539 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:21:50,540 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:21:50,541 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:21:50,541 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:21:50,541 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:21:50,542 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:21:50,542 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:21:50,542 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:21:50,542 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:21:50,543 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:21:50,543 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:21:50,544 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:21:50,544 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:21:50,544 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:21:50,544 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:21:50,545 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:21:50,545 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:21:50,545 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:21:50,545 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:21:50,546 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:21:50,546 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:21:50,546 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:21:50,547 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:21:50,550 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:21:50,551 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:21:50,551 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:21:50,552 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:21:50,552 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:21:50,552 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:21:50,552 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:21:50,553 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:21:50,553 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:21:50,553 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:21:50,554 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:21:50,554 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:21:50,557 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:21:50,558 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:21:50,558 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:21:50,559 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:21:50,562 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:21:50,563 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:21:50,563 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:21:50,563 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:21:50,563 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:21:50,564 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:21:50,564 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:21:50,564 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:21:50,564 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:21:50,565 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:21:50,596 INFO L249 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2019-12-19 05:21:50,617 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-19 05:21:50,617 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-19 05:21:50,618 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-19 05:21:50,618 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-19 05:21:50,618 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-19 05:21:50,618 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-19 05:21:50,618 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-19 05:21:50,619 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-19 05:21:50,633 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 161 places, 192 transitions [2019-12-19 05:22:04,649 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 92464 states. [2019-12-19 05:22:04,651 INFO L276 IsEmpty]: Start isEmpty. Operand 92464 states. [2019-12-19 05:22:04,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2019-12-19 05:22:04,665 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:22:04,666 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 05:22:04,667 INFO L410 AbstractCegarLoop]: === Iteration 1 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:22:04,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:22:04,673 INFO L82 PathProgramCache]: Analyzing trace with hash -1398957812, now seen corresponding path program 1 times [2019-12-19 05:22:04,684 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:22:04,684 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421632446] [2019-12-19 05:22:04,685 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:22:04,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:22:05,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 05:22:05,061 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1421632446] [2019-12-19 05:22:05,062 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:22:05,062 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-19 05:22:05,063 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255310505] [2019-12-19 05:22:05,068 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-19 05:22:05,069 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:22:05,083 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-19 05:22:05,084 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-19 05:22:05,087 INFO L87 Difference]: Start difference. First operand 92464 states. Second operand 4 states. [2019-12-19 05:22:08,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:22:08,274 INFO L93 Difference]: Finished difference Result 96400 states and 448736 transitions. [2019-12-19 05:22:08,274 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-19 05:22:08,276 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 43 [2019-12-19 05:22:08,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:22:09,084 INFO L225 Difference]: With dead ends: 96400 [2019-12-19 05:22:09,085 INFO L226 Difference]: Without dead ends: 85520 [2019-12-19 05:22:09,090 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-19 05:22:10,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85520 states. [2019-12-19 05:22:14,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85520 to 85520. [2019-12-19 05:22:14,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85520 states. [2019-12-19 05:22:15,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85520 states to 85520 states and 400696 transitions. [2019-12-19 05:22:15,191 INFO L78 Accepts]: Start accepts. Automaton has 85520 states and 400696 transitions. Word has length 43 [2019-12-19 05:22:15,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:22:15,192 INFO L462 AbstractCegarLoop]: Abstraction has 85520 states and 400696 transitions. [2019-12-19 05:22:15,192 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-19 05:22:15,193 INFO L276 IsEmpty]: Start isEmpty. Operand 85520 states and 400696 transitions. [2019-12-19 05:22:15,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2019-12-19 05:22:15,204 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:22:15,205 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 05:22:15,205 INFO L410 AbstractCegarLoop]: === Iteration 2 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:22:15,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:22:15,206 INFO L82 PathProgramCache]: Analyzing trace with hash 1155940074, now seen corresponding path program 1 times [2019-12-19 05:22:15,206 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:22:15,206 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233044811] [2019-12-19 05:22:15,206 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:22:15,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:22:18,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 05:22:18,134 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233044811] [2019-12-19 05:22:18,134 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:22:18,134 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-19 05:22:18,134 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824571317] [2019-12-19 05:22:18,137 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-19 05:22:18,137 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:22:18,137 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-19 05:22:18,138 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-19 05:22:18,138 INFO L87 Difference]: Start difference. First operand 85520 states and 400696 transitions. Second operand 5 states. [2019-12-19 05:22:19,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:22:19,702 INFO L93 Difference]: Finished difference Result 139648 states and 623532 transitions. [2019-12-19 05:22:19,703 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-19 05:22:19,703 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 50 [2019-12-19 05:22:19,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:22:20,982 INFO L225 Difference]: With dead ends: 139648 [2019-12-19 05:22:20,983 INFO L226 Difference]: Without dead ends: 138928 [2019-12-19 05:22:20,984 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-12-19 05:22:21,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138928 states. [2019-12-19 05:22:28,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138928 to 132784. [2019-12-19 05:22:28,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132784 states. [2019-12-19 05:22:34,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132784 states to 132784 states and 597160 transitions. [2019-12-19 05:22:34,226 INFO L78 Accepts]: Start accepts. Automaton has 132784 states and 597160 transitions. Word has length 50 [2019-12-19 05:22:34,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:22:34,227 INFO L462 AbstractCegarLoop]: Abstraction has 132784 states and 597160 transitions. [2019-12-19 05:22:34,227 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-19 05:22:34,227 INFO L276 IsEmpty]: Start isEmpty. Operand 132784 states and 597160 transitions. [2019-12-19 05:22:34,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-12-19 05:22:34,237 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:22:34,237 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 05:22:34,238 INFO L410 AbstractCegarLoop]: === Iteration 3 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:22:34,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:22:34,238 INFO L82 PathProgramCache]: Analyzing trace with hash 414231166, now seen corresponding path program 1 times [2019-12-19 05:22:34,238 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:22:34,239 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504696076] [2019-12-19 05:22:34,239 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:22:34,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:22:34,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 05:22:34,335 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504696076] [2019-12-19 05:22:34,336 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:22:34,336 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-19 05:22:34,336 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646488026] [2019-12-19 05:22:34,337 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-19 05:22:34,337 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:22:34,337 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-19 05:22:34,338 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-19 05:22:34,338 INFO L87 Difference]: Start difference. First operand 132784 states and 597160 transitions. Second operand 5 states. [2019-12-19 05:22:35,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:22:35,651 INFO L93 Difference]: Finished difference Result 161552 states and 717780 transitions. [2019-12-19 05:22:35,651 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-19 05:22:35,651 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 51 [2019-12-19 05:22:35,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:22:37,406 INFO L225 Difference]: With dead ends: 161552 [2019-12-19 05:22:37,407 INFO L226 Difference]: Without dead ends: 160752 [2019-12-19 05:22:37,407 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-12-19 05:22:38,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160752 states. [2019-12-19 05:22:45,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160752 to 139076. [2019-12-19 05:22:45,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 139076 states. [2019-12-19 05:22:46,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139076 states to 139076 states and 623063 transitions. [2019-12-19 05:22:46,197 INFO L78 Accepts]: Start accepts. Automaton has 139076 states and 623063 transitions. Word has length 51 [2019-12-19 05:22:46,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:22:46,198 INFO L462 AbstractCegarLoop]: Abstraction has 139076 states and 623063 transitions. [2019-12-19 05:22:46,198 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-19 05:22:46,198 INFO L276 IsEmpty]: Start isEmpty. Operand 139076 states and 623063 transitions. [2019-12-19 05:22:46,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2019-12-19 05:22:46,236 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:22:46,237 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 05:22:46,237 INFO L410 AbstractCegarLoop]: === Iteration 4 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:22:46,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:22:46,237 INFO L82 PathProgramCache]: Analyzing trace with hash -1643889572, now seen corresponding path program 1 times [2019-12-19 05:22:46,237 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:22:46,237 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002558055] [2019-12-19 05:22:46,238 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:22:46,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:22:46,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 05:22:46,374 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002558055] [2019-12-19 05:22:46,374 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:22:46,375 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-19 05:22:46,375 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501878610] [2019-12-19 05:22:46,375 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-19 05:22:46,376 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:22:46,376 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-19 05:22:46,376 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-12-19 05:22:46,376 INFO L87 Difference]: Start difference. First operand 139076 states and 623063 transitions. Second operand 6 states. [2019-12-19 05:22:49,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:22:49,029 INFO L93 Difference]: Finished difference Result 183580 states and 805089 transitions. [2019-12-19 05:22:49,029 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-12-19 05:22:49,029 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 58 [2019-12-19 05:22:49,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:22:56,319 INFO L225 Difference]: With dead ends: 183580 [2019-12-19 05:22:56,319 INFO L226 Difference]: Without dead ends: 182860 [2019-12-19 05:22:56,319 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2019-12-19 05:22:57,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182860 states. [2019-12-19 05:23:00,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182860 to 134928. [2019-12-19 05:23:00,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134928 states. [2019-12-19 05:23:00,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134928 states to 134928 states and 604572 transitions. [2019-12-19 05:23:00,501 INFO L78 Accepts]: Start accepts. Automaton has 134928 states and 604572 transitions. Word has length 58 [2019-12-19 05:23:00,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:23:00,502 INFO L462 AbstractCegarLoop]: Abstraction has 134928 states and 604572 transitions. [2019-12-19 05:23:00,502 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-19 05:23:00,502 INFO L276 IsEmpty]: Start isEmpty. Operand 134928 states and 604572 transitions. [2019-12-19 05:23:00,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2019-12-19 05:23:00,581 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:23:00,581 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 05:23:00,582 INFO L410 AbstractCegarLoop]: === Iteration 5 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:23:00,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:23:00,582 INFO L82 PathProgramCache]: Analyzing trace with hash 205469100, now seen corresponding path program 1 times [2019-12-19 05:23:00,582 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:23:00,583 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331388584] [2019-12-19 05:23:00,583 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:23:00,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:23:00,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 05:23:00,728 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331388584] [2019-12-19 05:23:00,728 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:23:00,729 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-19 05:23:00,729 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163734321] [2019-12-19 05:23:00,729 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-19 05:23:00,730 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:23:00,730 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-19 05:23:00,730 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-12-19 05:23:00,730 INFO L87 Difference]: Start difference. First operand 134928 states and 604572 transitions. Second operand 6 states. [2019-12-19 05:23:03,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:23:03,266 INFO L93 Difference]: Finished difference Result 185112 states and 812726 transitions. [2019-12-19 05:23:03,266 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-12-19 05:23:03,266 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 65 [2019-12-19 05:23:03,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:23:05,402 INFO L225 Difference]: With dead ends: 185112 [2019-12-19 05:23:05,402 INFO L226 Difference]: Without dead ends: 183912 [2019-12-19 05:23:05,403 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2019-12-19 05:23:06,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183912 states. [2019-12-19 05:23:15,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183912 to 160428. [2019-12-19 05:23:15,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 160428 states. [2019-12-19 05:23:16,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160428 states to 160428 states and 711513 transitions. [2019-12-19 05:23:16,352 INFO L78 Accepts]: Start accepts. Automaton has 160428 states and 711513 transitions. Word has length 65 [2019-12-19 05:23:16,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:23:16,353 INFO L462 AbstractCegarLoop]: Abstraction has 160428 states and 711513 transitions. [2019-12-19 05:23:16,353 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-19 05:23:16,353 INFO L276 IsEmpty]: Start isEmpty. Operand 160428 states and 711513 transitions. [2019-12-19 05:23:17,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2019-12-19 05:23:17,531 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:23:17,531 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 05:23:17,531 INFO L410 AbstractCegarLoop]: === Iteration 6 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:23:17,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:23:17,531 INFO L82 PathProgramCache]: Analyzing trace with hash 1065201497, now seen corresponding path program 1 times [2019-12-19 05:23:17,532 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:23:17,532 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684891739] [2019-12-19 05:23:17,532 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:23:17,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:23:17,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 05:23:17,599 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [684891739] [2019-12-19 05:23:17,599 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:23:17,600 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-19 05:23:17,600 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145567245] [2019-12-19 05:23:17,600 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-19 05:23:17,601 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:23:17,601 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-19 05:23:17,601 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-19 05:23:17,601 INFO L87 Difference]: Start difference. First operand 160428 states and 711513 transitions. Second operand 3 states. [2019-12-19 05:23:18,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:23:18,979 INFO L93 Difference]: Finished difference Result 202236 states and 884073 transitions. [2019-12-19 05:23:18,979 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-19 05:23:18,980 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 67 [2019-12-19 05:23:18,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:23:26,448 INFO L225 Difference]: With dead ends: 202236 [2019-12-19 05:23:26,448 INFO L226 Difference]: Without dead ends: 202236 [2019-12-19 05:23:26,448 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-19 05:23:27,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202236 states. [2019-12-19 05:23:30,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202236 to 176148. [2019-12-19 05:23:30,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 176148 states. [2019-12-19 05:23:32,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176148 states to 176148 states and 777055 transitions. [2019-12-19 05:23:32,075 INFO L78 Accepts]: Start accepts. Automaton has 176148 states and 777055 transitions. Word has length 67 [2019-12-19 05:23:32,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:23:32,075 INFO L462 AbstractCegarLoop]: Abstraction has 176148 states and 777055 transitions. [2019-12-19 05:23:32,075 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-19 05:23:32,075 INFO L276 IsEmpty]: Start isEmpty. Operand 176148 states and 777055 transitions. [2019-12-19 05:23:32,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2019-12-19 05:23:32,250 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:23:32,250 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 05:23:32,250 INFO L410 AbstractCegarLoop]: === Iteration 7 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:23:32,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:23:32,251 INFO L82 PathProgramCache]: Analyzing trace with hash -681447855, now seen corresponding path program 1 times [2019-12-19 05:23:32,251 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:23:32,251 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [439056152] [2019-12-19 05:23:32,251 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:23:32,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:23:32,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 05:23:32,346 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [439056152] [2019-12-19 05:23:32,346 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:23:32,347 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-19 05:23:32,347 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145149826] [2019-12-19 05:23:32,347 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-19 05:23:32,347 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:23:32,348 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-19 05:23:32,348 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-12-19 05:23:32,348 INFO L87 Difference]: Start difference. First operand 176148 states and 777055 transitions. Second operand 7 states. [2019-12-19 05:23:40,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:23:40,282 INFO L93 Difference]: Finished difference Result 224100 states and 971731 transitions. [2019-12-19 05:23:40,282 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2019-12-19 05:23:40,282 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 71 [2019-12-19 05:23:40,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:23:41,165 INFO L225 Difference]: With dead ends: 224100 [2019-12-19 05:23:41,166 INFO L226 Difference]: Without dead ends: 222900 [2019-12-19 05:23:41,166 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=91, Invalid=289, Unknown=0, NotChecked=0, Total=380 [2019-12-19 05:23:42,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222900 states. [2019-12-19 05:23:46,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222900 to 180724. [2019-12-19 05:23:46,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 180724 states. [2019-12-19 05:23:48,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180724 states to 180724 states and 796147 transitions. [2019-12-19 05:23:48,386 INFO L78 Accepts]: Start accepts. Automaton has 180724 states and 796147 transitions. Word has length 71 [2019-12-19 05:23:48,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:23:48,387 INFO L462 AbstractCegarLoop]: Abstraction has 180724 states and 796147 transitions. [2019-12-19 05:23:48,387 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-19 05:23:48,387 INFO L276 IsEmpty]: Start isEmpty. Operand 180724 states and 796147 transitions. [2019-12-19 05:23:48,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2019-12-19 05:23:48,553 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:23:48,553 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 05:23:48,553 INFO L410 AbstractCegarLoop]: === Iteration 8 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:23:48,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:23:48,554 INFO L82 PathProgramCache]: Analyzing trace with hash 311115850, now seen corresponding path program 1 times [2019-12-19 05:23:48,554 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:23:48,554 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576515868] [2019-12-19 05:23:48,554 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:23:48,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:23:48,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 05:23:48,644 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576515868] [2019-12-19 05:23:48,644 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:23:48,644 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-19 05:23:48,645 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273752938] [2019-12-19 05:23:48,645 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-19 05:23:48,645 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:23:48,646 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-19 05:23:48,646 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-12-19 05:23:48,646 INFO L87 Difference]: Start difference. First operand 180724 states and 796147 transitions. Second operand 7 states. [2019-12-19 05:23:57,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:23:57,371 INFO L93 Difference]: Finished difference Result 220860 states and 957729 transitions. [2019-12-19 05:23:57,372 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2019-12-19 05:23:57,372 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 72 [2019-12-19 05:23:57,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:23:58,227 INFO L225 Difference]: With dead ends: 220860 [2019-12-19 05:23:58,227 INFO L226 Difference]: Without dead ends: 219860 [2019-12-19 05:23:58,227 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=106, Invalid=356, Unknown=0, NotChecked=0, Total=462 [2019-12-19 05:23:59,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219860 states. [2019-12-19 05:24:04,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219860 to 184236. [2019-12-19 05:24:04,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 184236 states. [2019-12-19 05:24:04,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184236 states to 184236 states and 810265 transitions. [2019-12-19 05:24:04,762 INFO L78 Accepts]: Start accepts. Automaton has 184236 states and 810265 transitions. Word has length 72 [2019-12-19 05:24:04,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:24:04,762 INFO L462 AbstractCegarLoop]: Abstraction has 184236 states and 810265 transitions. [2019-12-19 05:24:04,762 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-19 05:24:04,762 INFO L276 IsEmpty]: Start isEmpty. Operand 184236 states and 810265 transitions. [2019-12-19 05:24:06,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2019-12-19 05:24:06,492 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:24:06,492 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 05:24:06,492 INFO L410 AbstractCegarLoop]: === Iteration 9 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:24:06,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:24:06,492 INFO L82 PathProgramCache]: Analyzing trace with hash -1636045537, now seen corresponding path program 1 times [2019-12-19 05:24:06,492 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:24:06,493 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275695657] [2019-12-19 05:24:06,493 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:24:06,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:24:06,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 05:24:06,601 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275695657] [2019-12-19 05:24:06,602 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:24:06,603 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-19 05:24:06,605 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020097519] [2019-12-19 05:24:06,605 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-19 05:24:06,606 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:24:06,606 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-19 05:24:06,606 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-12-19 05:24:06,606 INFO L87 Difference]: Start difference. First operand 184236 states and 810265 transitions. Second operand 6 states. [2019-12-19 05:24:10,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:24:10,323 INFO L93 Difference]: Finished difference Result 262764 states and 1148125 transitions. [2019-12-19 05:24:10,324 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-19 05:24:10,324 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 74 [2019-12-19 05:24:10,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:24:11,323 INFO L225 Difference]: With dead ends: 262764 [2019-12-19 05:24:11,323 INFO L226 Difference]: Without dead ends: 260188 [2019-12-19 05:24:11,324 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-12-19 05:24:21,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260188 states. [2019-12-19 05:24:25,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260188 to 224436. [2019-12-19 05:24:25,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 224436 states. [2019-12-19 05:24:26,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224436 states to 224436 states and 986535 transitions. [2019-12-19 05:24:26,866 INFO L78 Accepts]: Start accepts. Automaton has 224436 states and 986535 transitions. Word has length 74 [2019-12-19 05:24:26,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:24:26,866 INFO L462 AbstractCegarLoop]: Abstraction has 224436 states and 986535 transitions. [2019-12-19 05:24:26,866 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-19 05:24:26,866 INFO L276 IsEmpty]: Start isEmpty. Operand 224436 states and 986535 transitions. [2019-12-19 05:24:27,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2019-12-19 05:24:27,128 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:24:27,128 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 05:24:27,128 INFO L410 AbstractCegarLoop]: === Iteration 10 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:24:27,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:24:27,128 INFO L82 PathProgramCache]: Analyzing trace with hash -674431520, now seen corresponding path program 1 times [2019-12-19 05:24:27,129 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:24:27,129 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433298437] [2019-12-19 05:24:27,129 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:24:27,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:24:27,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 05:24:27,204 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [433298437] [2019-12-19 05:24:27,204 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:24:27,205 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-19 05:24:27,205 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771412258] [2019-12-19 05:24:27,205 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-19 05:24:27,205 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:24:27,206 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-19 05:24:27,206 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-19 05:24:27,206 INFO L87 Difference]: Start difference. First operand 224436 states and 986535 transitions. Second operand 4 states. [2019-12-19 05:24:34,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:24:34,434 INFO L93 Difference]: Finished difference Result 186990 states and 802072 transitions. [2019-12-19 05:24:34,434 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-19 05:24:34,435 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 74 [2019-12-19 05:24:34,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:24:35,023 INFO L225 Difference]: With dead ends: 186990 [2019-12-19 05:24:35,023 INFO L226 Difference]: Without dead ends: 185078 [2019-12-19 05:24:35,023 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-19 05:24:36,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185078 states. [2019-12-19 05:24:40,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185078 to 185078. [2019-12-19 05:24:40,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 185078 states. [2019-12-19 05:24:40,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185078 states to 185078 states and 795693 transitions. [2019-12-19 05:24:40,893 INFO L78 Accepts]: Start accepts. Automaton has 185078 states and 795693 transitions. Word has length 74 [2019-12-19 05:24:40,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:24:40,893 INFO L462 AbstractCegarLoop]: Abstraction has 185078 states and 795693 transitions. [2019-12-19 05:24:40,894 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-19 05:24:40,894 INFO L276 IsEmpty]: Start isEmpty. Operand 185078 states and 795693 transitions. [2019-12-19 05:24:42,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2019-12-19 05:24:42,259 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:24:42,259 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 05:24:42,259 INFO L410 AbstractCegarLoop]: === Iteration 11 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:24:42,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:24:42,260 INFO L82 PathProgramCache]: Analyzing trace with hash -1035081414, now seen corresponding path program 1 times [2019-12-19 05:24:42,260 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:24:42,260 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736373444] [2019-12-19 05:24:42,260 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:24:42,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:24:42,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 05:24:42,319 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736373444] [2019-12-19 05:24:42,320 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:24:42,320 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-19 05:24:42,320 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547684623] [2019-12-19 05:24:42,321 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-19 05:24:42,321 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:24:42,321 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-19 05:24:42,321 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-19 05:24:42,323 INFO L87 Difference]: Start difference. First operand 185078 states and 795693 transitions. Second operand 3 states. [2019-12-19 05:24:43,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:24:43,275 INFO L93 Difference]: Finished difference Result 176690 states and 757209 transitions. [2019-12-19 05:24:43,275 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-19 05:24:43,275 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 75 [2019-12-19 05:24:43,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. Received shutdown request... [2019-12-19 05:24:50,733 INFO L225 Difference]: With dead ends: 176690 [2019-12-19 05:24:50,734 INFO L226 Difference]: Without dead ends: 176204 [2019-12-19 05:24:50,734 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-19 05:24:51,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176204 states. [2019-12-19 05:24:51,573 WARN L527 AbstractCegarLoop]: Verification canceled [2019-12-19 05:24:51,577 WARN L227 ceAbstractionStarter]: Timeout [2019-12-19 05:24:51,577 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.12 05:24:51 BasicIcfg [2019-12-19 05:24:51,578 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-19 05:24:51,580 INFO L168 Benchmark]: Toolchain (without parser) took 182898.65 ms. Allocated memory was 145.8 MB in the beginning and 4.8 GB in the end (delta: 4.7 GB). Free memory was 100.8 MB in the beginning and 2.9 GB in the end (delta: -2.8 GB). Peak memory consumption was 4.0 GB. Max. memory is 7.1 GB. [2019-12-19 05:24:51,580 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 145.8 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-12-19 05:24:51,581 INFO L168 Benchmark]: CACSL2BoogieTranslator took 861.42 ms. Allocated memory was 145.8 MB in the beginning and 203.9 MB in the end (delta: 58.2 MB). Free memory was 100.5 MB in the beginning and 158.0 MB in the end (delta: -57.4 MB). Peak memory consumption was 20.5 MB. Max. memory is 7.1 GB. [2019-12-19 05:24:51,582 INFO L168 Benchmark]: Boogie Procedure Inliner took 72.86 ms. Allocated memory is still 203.9 MB. Free memory was 158.0 MB in the beginning and 154.7 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 7.1 GB. [2019-12-19 05:24:51,583 INFO L168 Benchmark]: Boogie Preprocessor took 37.75 ms. Allocated memory is still 203.9 MB. Free memory was 154.7 MB in the beginning and 152.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-19 05:24:51,583 INFO L168 Benchmark]: RCFGBuilder took 792.28 ms. Allocated memory is still 203.9 MB. Free memory was 152.7 MB in the beginning and 105.9 MB in the end (delta: 46.8 MB). Peak memory consumption was 46.8 MB. Max. memory is 7.1 GB. [2019-12-19 05:24:51,584 INFO L168 Benchmark]: TraceAbstraction took 181128.92 ms. Allocated memory was 203.9 MB in the beginning and 4.8 GB in the end (delta: 4.6 GB). Free memory was 105.9 MB in the beginning and 2.9 GB in the end (delta: -2.8 GB). Peak memory consumption was 3.9 GB. Max. memory is 7.1 GB. [2019-12-19 05:24:51,588 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 145.8 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 861.42 ms. Allocated memory was 145.8 MB in the beginning and 203.9 MB in the end (delta: 58.2 MB). Free memory was 100.5 MB in the beginning and 158.0 MB in the end (delta: -57.4 MB). Peak memory consumption was 20.5 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 72.86 ms. Allocated memory is still 203.9 MB. Free memory was 158.0 MB in the beginning and 154.7 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 37.75 ms. Allocated memory is still 203.9 MB. Free memory was 154.7 MB in the beginning and 152.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 792.28 ms. Allocated memory is still 203.9 MB. Free memory was 152.7 MB in the beginning and 105.9 MB in the end (delta: 46.8 MB). Peak memory consumption was 46.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 181128.92 ms. Allocated memory was 203.9 MB in the beginning and 4.8 GB in the end (delta: 4.6 GB). Free memory was 105.9 MB in the beginning and 2.9 GB in the end (delta: -2.8 GB). Peak memory consumption was 3.9 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 4]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 4). Cancelled while executing MinimizeSevpa. - TimeoutResultAtElement [Line: 4]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 4). Cancelled while executing MinimizeSevpa. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 152 locations, 2 error locations. Result: TIMEOUT, OverallTime: 180.9s, OverallIterations: 11, TraceHistogramMax: 1, AutomataDifference: 72.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 3536 SDtfs, 4121 SDslu, 7937 SDs, 0 SdLazy, 2948 SolverSat, 244 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 120 GetRequests, 33 SyntacticMatches, 1 SemanticMatches, 86 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 203 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=224436occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 84.8s AutomataMinimizationTime, 11 MinimizatonAttempts, 238876 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 3.7s InterpolantComputationTime, 700 NumberOfCodeBlocks, 700 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 689 ConstructedInterpolants, 0 QuantifiedInterpolants, 96786 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 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 could not prove your program: Timeout Completed graceful shutdown