/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/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/elevator_spec1_productSimulator.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-06 21:31:34,437 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-06 21:31:34,440 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-06 21:31:34,451 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-06 21:31:34,452 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-06 21:31:34,453 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-06 21:31:34,454 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-06 21:31:34,456 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-06 21:31:34,458 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-06 21:31:34,459 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-06 21:31:34,460 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-06 21:31:34,461 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-06 21:31:34,461 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-06 21:31:34,462 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-06 21:31:34,463 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-06 21:31:34,464 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-06 21:31:34,465 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-06 21:31:34,466 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-06 21:31:34,467 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-06 21:31:34,469 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-06 21:31:34,471 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-06 21:31:34,472 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-06 21:31:34,473 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-06 21:31:34,474 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-06 21:31:34,476 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-06 21:31:34,477 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-06 21:31:34,477 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-06 21:31:34,478 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-06 21:31:34,478 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-06 21:31:34,479 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-06 21:31:34,479 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-06 21:31:34,480 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-06 21:31:34,481 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-06 21:31:34,481 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-06 21:31:34,482 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-06 21:31:34,482 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-06 21:31:34,483 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-06 21:31:34,483 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-06 21:31:34,484 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-06 21:31:34,485 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-06 21:31:34,485 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-06 21:31:34,486 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-06 21:31:34,500 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-06 21:31:34,500 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-06 21:31:34,501 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-06 21:31:34,502 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-06 21:31:34,502 INFO L138 SettingsManager]: * Use SBE=true [2019-11-06 21:31:34,502 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-06 21:31:34,502 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-06 21:31:34,503 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-06 21:31:34,503 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-06 21:31:34,503 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-06 21:31:34,503 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-06 21:31:34,503 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-06 21:31:34,504 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-06 21:31:34,504 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-06 21:31:34,504 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-06 21:31:34,504 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-06 21:31:34,504 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-06 21:31:34,505 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-06 21:31:34,505 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-06 21:31:34,505 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-06 21:31:34,505 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-06 21:31:34,505 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-06 21:31:34,506 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-06 21:31:34,506 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-06 21:31:34,506 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-06 21:31:34,506 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-06 21:31:34,506 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-06 21:31:34,507 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-06 21:31:34,507 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-06 21:31:34,784 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-06 21:31:34,796 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-06 21:31:34,799 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-06 21:31:34,800 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-06 21:31:34,801 INFO L275 PluginConnector]: CDTParser initialized [2019-11-06 21:31:34,801 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec1_productSimulator.cil.c [2019-11-06 21:31:34,874 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5cae56b91/ed47c5161626424084ce22c33a7026fb/FLAG11bcee1c4 [2019-11-06 21:31:35,583 INFO L306 CDTParser]: Found 1 translation units. [2019-11-06 21:31:35,583 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec1_productSimulator.cil.c [2019-11-06 21:31:35,602 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5cae56b91/ed47c5161626424084ce22c33a7026fb/FLAG11bcee1c4 [2019-11-06 21:31:35,707 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5cae56b91/ed47c5161626424084ce22c33a7026fb [2019-11-06 21:31:35,715 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-06 21:31:35,717 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-06 21:31:35,718 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-06 21:31:35,718 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-06 21:31:35,721 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-06 21:31:35,722 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:31:35" (1/1) ... [2019-11-06 21:31:35,725 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@691c9e00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:31:35, skipping insertion in model container [2019-11-06 21:31:35,725 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:31:35" (1/1) ... [2019-11-06 21:31:35,733 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-06 21:31:35,818 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-06 21:31:36,643 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-06 21:31:36,667 INFO L188 MainTranslator]: Completed pre-run [2019-11-06 21:31:36,815 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-06 21:31:36,890 INFO L192 MainTranslator]: Completed translation [2019-11-06 21:31:36,891 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:31:36 WrapperNode [2019-11-06 21:31:36,891 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-06 21:31:36,892 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-06 21:31:36,892 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-06 21:31:36,892 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-06 21:31:36,914 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:31:36" (1/1) ... [2019-11-06 21:31:36,914 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:31:36" (1/1) ... [2019-11-06 21:31:36,949 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:31:36" (1/1) ... [2019-11-06 21:31:36,950 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:31:36" (1/1) ... [2019-11-06 21:31:37,037 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:31:36" (1/1) ... [2019-11-06 21:31:37,063 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:31:36" (1/1) ... [2019-11-06 21:31:37,077 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:31:36" (1/1) ... [2019-11-06 21:31:37,105 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-06 21:31:37,106 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-06 21:31:37,106 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-06 21:31:37,110 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-06 21:31:37,111 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:31:36" (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 [2019-11-06 21:31:37,191 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-06 21:31:37,192 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-06 21:31:37,192 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-11-06 21:31:37,192 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-11-06 21:31:37,192 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-11-06 21:31:37,193 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-11-06 21:31:37,194 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-11-06 21:31:37,194 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-11-06 21:31:37,194 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-11-06 21:31:37,194 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-11-06 21:31:37,194 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-11-06 21:31:37,195 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-11-06 21:31:37,195 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-11-06 21:31:37,195 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-11-06 21:31:37,196 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-11-06 21:31:37,197 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2019-11-06 21:31:37,198 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__2 [2019-11-06 21:31:37,199 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__3 [2019-11-06 21:31:37,199 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__4 [2019-11-06 21:31:37,200 INFO L138 BoogieDeclarations]: Found implementation of procedure initFloors [2019-11-06 21:31:37,200 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2019-11-06 21:31:37,200 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2019-11-06 21:31:37,201 INFO L138 BoogieDeclarations]: Found implementation of procedure callOnFloor [2019-11-06 21:31:37,202 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2019-11-06 21:31:37,202 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2019-11-06 21:31:37,202 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2019-11-06 21:31:37,203 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2019-11-06 21:31:37,203 INFO L138 BoogieDeclarations]: Found implementation of procedure initTopDown [2019-11-06 21:31:37,203 INFO L138 BoogieDeclarations]: Found implementation of procedure initBottomUp [2019-11-06 21:31:37,203 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked__before__overloaded [2019-11-06 21:31:37,203 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked__role__overloaded [2019-11-06 21:31:37,203 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2019-11-06 21:31:37,203 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator__before__weight [2019-11-06 21:31:37,204 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator__role__weight [2019-11-06 21:31:37,204 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2019-11-06 21:31:37,204 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator__before__weight [2019-11-06 21:31:37,204 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator__role__weight [2019-11-06 21:31:37,204 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator__before__empty [2019-11-06 21:31:37,204 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator__role__empty [2019-11-06 21:31:37,205 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2019-11-06 21:31:37,205 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2019-11-06 21:31:37,205 INFO L138 BoogieDeclarations]: Found implementation of procedure resetFloorButton [2019-11-06 21:31:37,205 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2019-11-06 21:31:37,205 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2019-11-06 21:31:37,205 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2019-11-06 21:31:37,206 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentHeading [2019-11-06 21:31:37,206 INFO L138 BoogieDeclarations]: Found implementation of procedure isEmpty [2019-11-06 21:31:37,206 INFO L138 BoogieDeclarations]: Found implementation of procedure anyStopRequested [2019-11-06 21:31:37,206 INFO L138 BoogieDeclarations]: Found implementation of procedure isIdle [2019-11-06 21:31:37,206 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__before__twothirdsfull [2019-11-06 21:31:37,206 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__role__twothirdsfull [2019-11-06 21:31:37,206 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__before__executivefloor [2019-11-06 21:31:37,207 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__role__executivefloor [2019-11-06 21:31:37,207 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2019-11-06 21:31:37,207 INFO L138 BoogieDeclarations]: Found implementation of procedure isAnyLiftButtonPressed [2019-11-06 21:31:37,207 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2019-11-06 21:31:37,207 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__before__twothirdsfull [2019-11-06 21:31:37,207 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__role__twothirdsfull [2019-11-06 21:31:37,207 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__before__executivefloor [2019-11-06 21:31:37,208 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__role__executivefloor [2019-11-06 21:31:37,208 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor [2019-11-06 21:31:37,208 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2019-11-06 21:31:37,208 INFO L138 BoogieDeclarations]: Found implementation of procedure processWaitingOnFloor [2019-11-06 21:31:37,208 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift__before__overloaded [2019-11-06 21:31:37,209 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift__role__overloaded [2019-11-06 21:31:37,209 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-11-06 21:31:37,209 INFO L138 BoogieDeclarations]: Found implementation of procedure printState__before__overloaded [2019-11-06 21:31:37,209 INFO L138 BoogieDeclarations]: Found implementation of procedure printState__role__overloaded [2019-11-06 21:31:37,209 INFO L138 BoogieDeclarations]: Found implementation of procedure printState [2019-11-06 21:31:37,210 INFO L138 BoogieDeclarations]: Found implementation of procedure existInLiftCallsInDirection [2019-11-06 21:31:37,210 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2019-11-06 21:31:37,210 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloor [2019-11-06 21:31:37,210 INFO L138 BoogieDeclarations]: Found implementation of procedure spec1 [2019-11-06 21:31:37,210 INFO L138 BoogieDeclarations]: Found implementation of procedure spec14 [2019-11-06 21:31:37,211 INFO L138 BoogieDeclarations]: Found implementation of procedure get_nondetMinMax07 [2019-11-06 21:31:37,211 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2019-11-06 21:31:37,211 INFO L138 BoogieDeclarations]: Found implementation of procedure aliceCall [2019-11-06 21:31:37,211 INFO L138 BoogieDeclarations]: Found implementation of procedure angelinaCall [2019-11-06 21:31:37,211 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckCall [2019-11-06 21:31:37,212 INFO L138 BoogieDeclarations]: Found implementation of procedure monicaCall [2019-11-06 21:31:37,212 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2019-11-06 21:31:37,212 INFO L138 BoogieDeclarations]: Found implementation of procedure threeTS [2019-11-06 21:31:37,212 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-11-06 21:31:37,213 INFO L138 BoogieDeclarations]: Found implementation of procedure randomSequenceOfActions [2019-11-06 21:31:37,213 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest_Simple [2019-11-06 21:31:37,213 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification1 [2019-11-06 21:31:37,213 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-11-06 21:31:37,214 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification3 [2019-11-06 21:31:37,214 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-11-06 21:31:37,214 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-11-06 21:31:37,214 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-06 21:31:37,215 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2019-11-06 21:31:37,215 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2019-11-06 21:31:37,215 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2019-11-06 21:31:37,215 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-06 21:31:37,215 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-06 21:31:37,216 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-11-06 21:31:37,216 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-11-06 21:31:37,216 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-11-06 21:31:37,216 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-11-06 21:31:37,216 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-11-06 21:31:37,216 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-06 21:31:37,216 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-06 21:31:37,216 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-11-06 21:31:37,217 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-06 21:31:37,217 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-06 21:31:37,217 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-06 21:31:37,217 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-06 21:31:37,217 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-11-06 21:31:37,217 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-06 21:31:37,217 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-11-06 21:31:37,218 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-11-06 21:31:37,218 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-06 21:31:37,218 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-11-06 21:31:37,218 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-11-06 21:31:37,218 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-06 21:31:37,218 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-11-06 21:31:37,219 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-11-06 21:31:37,219 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2019-11-06 21:31:37,219 INFO L130 BoogieDeclarations]: Found specification of procedure angelinaCall [2019-11-06 21:31:37,220 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-11-06 21:31:37,220 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-11-06 21:31:37,220 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2019-11-06 21:31:37,220 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2019-11-06 21:31:37,221 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2019-11-06 21:31:37,221 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__2 [2019-11-06 21:31:37,221 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__3 [2019-11-06 21:31:37,221 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__4 [2019-11-06 21:31:37,222 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2019-11-06 21:31:37,222 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2019-11-06 21:31:37,222 INFO L130 BoogieDeclarations]: Found specification of procedure callOnFloor [2019-11-06 21:31:37,222 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2019-11-06 21:31:37,223 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2019-11-06 21:31:37,223 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2019-11-06 21:31:37,223 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2019-11-06 21:31:37,223 INFO L130 BoogieDeclarations]: Found specification of procedure initFloors [2019-11-06 21:31:37,224 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-11-06 21:31:37,224 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2019-11-06 21:31:37,224 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2019-11-06 21:31:37,225 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2019-11-06 21:31:37,228 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-11-06 21:31:37,228 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2019-11-06 21:31:37,229 INFO L130 BoogieDeclarations]: Found specification of procedure printState [2019-11-06 21:31:37,229 INFO L130 BoogieDeclarations]: Found specification of procedure isEmpty [2019-11-06 21:31:37,235 INFO L130 BoogieDeclarations]: Found specification of procedure isAnyLiftButtonPressed [2019-11-06 21:31:37,235 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2019-11-06 21:31:37,235 INFO L130 BoogieDeclarations]: Found specification of procedure initTopDown [2019-11-06 21:31:37,235 INFO L130 BoogieDeclarations]: Found specification of procedure initBottomUp [2019-11-06 21:31:37,236 INFO L130 BoogieDeclarations]: Found specification of procedure isIdle [2019-11-06 21:31:37,236 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2019-11-06 21:31:37,236 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloor [2019-11-06 21:31:37,236 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked__before__overloaded [2019-11-06 21:31:37,236 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked__role__overloaded [2019-11-06 21:31:37,236 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator__before__weight [2019-11-06 21:31:37,236 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator__role__weight [2019-11-06 21:31:37,236 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator__before__weight [2019-11-06 21:31:37,236 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator__role__weight [2019-11-06 21:31:37,237 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator__before__empty [2019-11-06 21:31:37,238 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator__role__empty [2019-11-06 21:31:37,238 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2019-11-06 21:31:37,238 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2019-11-06 21:31:37,238 INFO L130 BoogieDeclarations]: Found specification of procedure resetFloorButton [2019-11-06 21:31:37,238 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentHeading [2019-11-06 21:31:37,238 INFO L130 BoogieDeclarations]: Found specification of procedure anyStopRequested [2019-11-06 21:31:37,239 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__before__twothirdsfull [2019-11-06 21:31:37,239 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__role__twothirdsfull [2019-11-06 21:31:37,239 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__before__executivefloor [2019-11-06 21:31:37,239 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__role__executivefloor [2019-11-06 21:31:37,239 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2019-11-06 21:31:37,239 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2019-11-06 21:31:37,239 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__before__twothirdsfull [2019-11-06 21:31:37,239 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__role__twothirdsfull [2019-11-06 21:31:37,240 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__before__executivefloor [2019-11-06 21:31:37,240 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__role__executivefloor [2019-11-06 21:31:37,240 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor [2019-11-06 21:31:37,240 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2019-11-06 21:31:37,240 INFO L130 BoogieDeclarations]: Found specification of procedure processWaitingOnFloor [2019-11-06 21:31:37,240 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift__before__overloaded [2019-11-06 21:31:37,240 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift__role__overloaded [2019-11-06 21:31:37,240 INFO L130 BoogieDeclarations]: Found specification of procedure printState__before__overloaded [2019-11-06 21:31:37,241 INFO L130 BoogieDeclarations]: Found specification of procedure printState__role__overloaded [2019-11-06 21:31:37,241 INFO L130 BoogieDeclarations]: Found specification of procedure existInLiftCallsInDirection [2019-11-06 21:31:37,241 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2019-11-06 21:31:37,241 INFO L130 BoogieDeclarations]: Found specification of procedure spec1 [2019-11-06 21:31:37,241 INFO L130 BoogieDeclarations]: Found specification of procedure spec14 [2019-11-06 21:31:37,241 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-06 21:31:37,241 INFO L130 BoogieDeclarations]: Found specification of procedure get_nondetMinMax07 [2019-11-06 21:31:37,241 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2019-11-06 21:31:37,242 INFO L130 BoogieDeclarations]: Found specification of procedure aliceCall [2019-11-06 21:31:37,242 INFO L130 BoogieDeclarations]: Found specification of procedure chuckCall [2019-11-06 21:31:37,242 INFO L130 BoogieDeclarations]: Found specification of procedure monicaCall [2019-11-06 21:31:37,242 INFO L130 BoogieDeclarations]: Found specification of procedure threeTS [2019-11-06 21:31:37,242 INFO L130 BoogieDeclarations]: Found specification of procedure randomSequenceOfActions [2019-11-06 21:31:37,243 INFO L130 BoogieDeclarations]: Found specification of procedure runTest_Simple [2019-11-06 21:31:37,243 INFO L130 BoogieDeclarations]: Found specification of procedure Specification1 [2019-11-06 21:31:37,243 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-11-06 21:31:37,243 INFO L130 BoogieDeclarations]: Found specification of procedure Specification3 [2019-11-06 21:31:37,243 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-11-06 21:31:37,243 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-11-06 21:31:37,243 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-06 21:31:37,243 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-06 21:31:37,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-06 21:31:37,244 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-06 21:31:39,774 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-06 21:31:39,774 INFO L284 CfgBuilder]: Removed 10 assume(true) statements. [2019-11-06 21:31:39,778 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:31:39 BoogieIcfgContainer [2019-11-06 21:31:39,778 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-06 21:31:39,779 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-06 21:31:39,779 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-06 21:31:39,783 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-06 21:31:39,784 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 09:31:35" (1/3) ... [2019-11-06 21:31:39,785 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@aa63dae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:31:39, skipping insertion in model container [2019-11-06 21:31:39,785 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:31:36" (2/3) ... [2019-11-06 21:31:39,786 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@aa63dae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:31:39, skipping insertion in model container [2019-11-06 21:31:39,786 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:31:39" (3/3) ... [2019-11-06 21:31:39,788 INFO L109 eAbstractionObserver]: Analyzing ICFG elevator_spec1_productSimulator.cil.c [2019-11-06 21:31:39,800 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-06 21:31:39,813 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-06 21:31:39,825 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-06 21:31:39,867 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-06 21:31:39,867 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-06 21:31:39,867 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-06 21:31:39,867 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-06 21:31:39,867 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-06 21:31:39,867 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-06 21:31:39,867 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-06 21:31:39,868 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-06 21:31:39,952 INFO L276 IsEmpty]: Start isEmpty. Operand 927 states. [2019-11-06 21:31:39,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2019-11-06 21:31:39,988 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 21:31:39,990 INFO L410 BasicCegarLoop]: trace histogram [5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 21:31:39,994 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 21:31:40,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 21:31:40,003 INFO L82 PathProgramCache]: Analyzing trace with hash -1052026056, now seen corresponding path program 1 times [2019-11-06 21:31:40,015 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 21:31:40,015 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1488717281] [2019-11-06 21:31:40,015 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 21:31:40,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:31:41,981 WARN L191 SmtUtils]: Spent 1.24 s on a formula simplification that was a NOOP. DAG size: 421 [2019-11-06 21:31:41,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:31:42,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:31:42,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:31:42,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:31:42,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:31:42,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:31:42,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:31:42,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:31:42,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:31:42,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:31:42,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:31:42,518 WARN L191 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2019-11-06 21:31:42,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:31:42,722 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2019-11-06 21:31:42,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:31:42,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:31:42,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:31:42,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:31:42,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:31:42,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:31:42,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:31:42,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:31:42,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:31:42,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:31:42,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:31:42,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:31:43,175 WARN L191 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2019-11-06 21:31:43,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:31:43,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:31:43,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:31:43,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:31:43,415 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2019-11-06 21:31:43,416 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1488717281] [2019-11-06 21:31:43,417 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [614209342] [2019-11-06 21:31:43,417 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-06 21:31:44,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:31:44,146 INFO L256 TraceCheckSpWp]: Trace formula consists of 3578 conjuncts, 1 conjunts are in the unsatisfiable core [2019-11-06 21:31:44,164 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-06 21:31:44,219 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2019-11-06 21:31:44,220 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-06 21:31:44,220 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [16] total 16 [2019-11-06 21:31:44,224 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138477791] [2019-11-06 21:31:44,230 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-06 21:31:44,230 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 21:31:44,244 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-06 21:31:44,244 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2019-11-06 21:31:44,247 INFO L87 Difference]: Start difference. First operand 927 states. Second operand 2 states. [2019-11-06 21:31:44,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 21:31:44,371 INFO L93 Difference]: Finished difference Result 798 states and 1232 transitions. [2019-11-06 21:31:44,372 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-06 21:31:44,373 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 150 [2019-11-06 21:31:44,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 21:31:44,418 INFO L225 Difference]: With dead ends: 798 [2019-11-06 21:31:44,418 INFO L226 Difference]: Without dead ends: 761 [2019-11-06 21:31:44,426 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 200 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2019-11-06 21:31:44,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 761 states. [2019-11-06 21:31:44,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 761 to 761. [2019-11-06 21:31:44,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 761 states. [2019-11-06 21:31:44,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 761 states to 761 states and 1177 transitions. [2019-11-06 21:31:44,580 INFO L78 Accepts]: Start accepts. Automaton has 761 states and 1177 transitions. Word has length 150 [2019-11-06 21:31:44,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 21:31:44,585 INFO L462 AbstractCegarLoop]: Abstraction has 761 states and 1177 transitions. [2019-11-06 21:31:44,586 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-06 21:31:44,586 INFO L276 IsEmpty]: Start isEmpty. Operand 761 states and 1177 transitions. [2019-11-06 21:31:44,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2019-11-06 21:31:44,601 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 21:31:44,601 INFO L410 BasicCegarLoop]: trace histogram [5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 21:31:44,818 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-06 21:31:44,819 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 21:31:44,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 21:31:44,820 INFO L82 PathProgramCache]: Analyzing trace with hash 781539179, now seen corresponding path program 1 times [2019-11-06 21:31:44,820 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 21:31:44,821 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104509481] [2019-11-06 21:31:44,821 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 21:31:44,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:31:46,151 WARN L191 SmtUtils]: Spent 1.12 s on a formula simplification that was a NOOP. DAG size: 421 [2019-11-06 21:31:46,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:31:46,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:31:46,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:31:46,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:31:46,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:31:46,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:31:46,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:31:46,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:31:46,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:31:46,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:31:46,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:31:46,604 WARN L191 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2019-11-06 21:31:46,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:31:46,795 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2019-11-06 21:31:46,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:31:46,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:31:46,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:31:46,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:31:46,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:31:46,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:31:46,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:31:46,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:31:46,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:31:46,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:31:46,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:31:46,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:31:47,264 WARN L191 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2019-11-06 21:31:47,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:31:47,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:31:47,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:31:47,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:31:47,438 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2019-11-06 21:31:47,439 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1104509481] [2019-11-06 21:31:47,439 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1269369611] [2019-11-06 21:31:47,439 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-06 21:31:48,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:31:48,124 INFO L256 TraceCheckSpWp]: Trace formula consists of 3581 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-06 21:31:48,134 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-06 21:31:48,225 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2019-11-06 21:31:48,225 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-06 21:31:48,225 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [16] total 18 [2019-11-06 21:31:48,226 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756190545] [2019-11-06 21:31:48,229 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-06 21:31:48,229 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 21:31:48,230 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-06 21:31:48,230 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=257, Unknown=0, NotChecked=0, Total=306 [2019-11-06 21:31:48,231 INFO L87 Difference]: Start difference. First operand 761 states and 1177 transitions. Second operand 4 states. [2019-11-06 21:31:48,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 21:31:48,434 INFO L93 Difference]: Finished difference Result 1473 states and 2297 transitions. [2019-11-06 21:31:48,434 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-06 21:31:48,435 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 152 [2019-11-06 21:31:48,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 21:31:48,446 INFO L225 Difference]: With dead ends: 1473 [2019-11-06 21:31:48,446 INFO L226 Difference]: Without dead ends: 761 [2019-11-06 21:31:48,455 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 199 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=53, Invalid=289, Unknown=0, NotChecked=0, Total=342 [2019-11-06 21:31:48,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 761 states. [2019-11-06 21:31:48,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 761 to 761. [2019-11-06 21:31:48,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 761 states. [2019-11-06 21:31:48,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 761 states to 761 states and 1176 transitions. [2019-11-06 21:31:48,503 INFO L78 Accepts]: Start accepts. Automaton has 761 states and 1176 transitions. Word has length 152 [2019-11-06 21:31:48,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 21:31:48,503 INFO L462 AbstractCegarLoop]: Abstraction has 761 states and 1176 transitions. [2019-11-06 21:31:48,503 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-06 21:31:48,504 INFO L276 IsEmpty]: Start isEmpty. Operand 761 states and 1176 transitions. [2019-11-06 21:31:48,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2019-11-06 21:31:48,508 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 21:31:48,508 INFO L410 BasicCegarLoop]: trace histogram [5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 21:31:48,715 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-06 21:31:48,715 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 21:31:48,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 21:31:48,716 INFO L82 PathProgramCache]: Analyzing trace with hash 1779559927, now seen corresponding path program 1 times [2019-11-06 21:31:48,716 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 21:31:48,716 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254098417] [2019-11-06 21:31:48,716 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 21:31:48,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:31:49,892 WARN L191 SmtUtils]: Spent 1.00 s on a formula simplification that was a NOOP. DAG size: 421 [2019-11-06 21:31:49,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:31:49,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:31:49,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:31:49,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:31:49,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:31:49,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:31:49,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:31:49,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:31:49,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:31:49,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:31:50,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:31:50,236 WARN L191 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2019-11-06 21:31:50,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:31:50,435 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2019-11-06 21:31:50,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:31:50,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:31:50,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:31:50,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:31:50,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:31:50,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:31:50,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:31:50,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:31:50,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:31:50,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:31:50,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:31:50,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:31:50,832 WARN L191 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2019-11-06 21:31:50,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:31:50,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:31:50,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:31:50,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:31:51,073 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2019-11-06 21:31:51,073 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254098417] [2019-11-06 21:31:51,073 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1468009132] [2019-11-06 21:31:51,074 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-06 21:31:51,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:31:51,622 INFO L256 TraceCheckSpWp]: Trace formula consists of 3583 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-06 21:31:51,631 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-06 21:31:51,702 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2019-11-06 21:31:51,702 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-06 21:31:51,703 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [16] total 18 [2019-11-06 21:31:51,703 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122863570] [2019-11-06 21:31:51,704 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-06 21:31:51,704 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 21:31:51,704 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-06 21:31:51,704 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=257, Unknown=0, NotChecked=0, Total=306 [2019-11-06 21:31:51,705 INFO L87 Difference]: Start difference. First operand 761 states and 1176 transitions. Second operand 4 states. [2019-11-06 21:31:51,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 21:31:51,786 INFO L93 Difference]: Finished difference Result 1473 states and 2295 transitions. [2019-11-06 21:31:51,786 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-06 21:31:51,787 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2019-11-06 21:31:51,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 21:31:51,793 INFO L225 Difference]: With dead ends: 1473 [2019-11-06 21:31:51,793 INFO L226 Difference]: Without dead ends: 761 [2019-11-06 21:31:51,797 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 201 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=53, Invalid=289, Unknown=0, NotChecked=0, Total=342 [2019-11-06 21:31:51,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 761 states. [2019-11-06 21:31:51,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 761 to 761. [2019-11-06 21:31:51,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 761 states. [2019-11-06 21:31:51,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 761 states to 761 states and 1175 transitions. [2019-11-06 21:31:51,840 INFO L78 Accepts]: Start accepts. Automaton has 761 states and 1175 transitions. Word has length 154 [2019-11-06 21:31:51,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 21:31:51,841 INFO L462 AbstractCegarLoop]: Abstraction has 761 states and 1175 transitions. [2019-11-06 21:31:51,841 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-06 21:31:51,841 INFO L276 IsEmpty]: Start isEmpty. Operand 761 states and 1175 transitions. [2019-11-06 21:31:51,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2019-11-06 21:31:51,849 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 21:31:51,849 INFO L410 BasicCegarLoop]: trace histogram [5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 21:31:52,050 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-06 21:31:52,050 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 21:31:52,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 21:31:52,051 INFO L82 PathProgramCache]: Analyzing trace with hash 939633715, now seen corresponding path program 1 times [2019-11-06 21:31:52,051 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 21:31:52,051 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440135416] [2019-11-06 21:31:52,051 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 21:31:52,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:31:53,171 WARN L191 SmtUtils]: Spent 992.00 ms on a formula simplification that was a NOOP. DAG size: 421 [2019-11-06 21:31:53,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:31:53,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:31:53,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:31:53,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:31:53,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:31:53,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:31:53,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:31:53,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:31:53,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:31:53,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:31:53,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:31:53,621 WARN L191 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2019-11-06 21:31:53,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:31:53,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:31:53,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:31:53,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:31:53,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:31:53,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:31:53,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:31:53,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:31:53,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:31:53,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:31:53,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:31:53,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:31:54,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:31:54,211 WARN L191 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2019-11-06 21:31:54,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:31:54,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:31:54,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:31:54,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:31:54,366 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2019-11-06 21:31:54,366 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440135416] [2019-11-06 21:31:54,367 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [924986704] [2019-11-06 21:31:54,367 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-06 21:31:55,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:31:55,033 INFO L256 TraceCheckSpWp]: Trace formula consists of 3585 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-06 21:31:55,042 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-06 21:31:55,122 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2019-11-06 21:31:55,123 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-06 21:31:55,123 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [16] total 18 [2019-11-06 21:31:55,123 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355592071] [2019-11-06 21:31:55,124 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-06 21:31:55,124 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 21:31:55,124 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-06 21:31:55,125 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=257, Unknown=0, NotChecked=0, Total=306 [2019-11-06 21:31:55,125 INFO L87 Difference]: Start difference. First operand 761 states and 1175 transitions. Second operand 4 states. [2019-11-06 21:31:55,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 21:31:55,239 INFO L93 Difference]: Finished difference Result 1480 states and 2302 transitions. [2019-11-06 21:31:55,240 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-06 21:31:55,240 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 156 [2019-11-06 21:31:55,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 21:31:55,246 INFO L225 Difference]: With dead ends: 1480 [2019-11-06 21:31:55,246 INFO L226 Difference]: Without dead ends: 770 [2019-11-06 21:31:55,250 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 203 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=53, Invalid=289, Unknown=0, NotChecked=0, Total=342 [2019-11-06 21:31:55,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 770 states. [2019-11-06 21:31:55,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 770 to 770. [2019-11-06 21:31:55,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 770 states. [2019-11-06 21:31:55,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 770 states to 770 states and 1187 transitions. [2019-11-06 21:31:55,280 INFO L78 Accepts]: Start accepts. Automaton has 770 states and 1187 transitions. Word has length 156 [2019-11-06 21:31:55,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 21:31:55,280 INFO L462 AbstractCegarLoop]: Abstraction has 770 states and 1187 transitions. [2019-11-06 21:31:55,281 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-06 21:31:55,281 INFO L276 IsEmpty]: Start isEmpty. Operand 770 states and 1187 transitions. [2019-11-06 21:31:55,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2019-11-06 21:31:55,284 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 21:31:55,284 INFO L410 BasicCegarLoop]: trace histogram [5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 21:31:55,499 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-06 21:31:55,500 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 21:31:55,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 21:31:55,500 INFO L82 PathProgramCache]: Analyzing trace with hash -451740952, now seen corresponding path program 1 times [2019-11-06 21:31:55,500 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 21:31:55,501 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433123787] [2019-11-06 21:31:55,501 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 21:31:55,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:31:56,850 WARN L191 SmtUtils]: Spent 1.24 s on a formula simplification that was a NOOP. DAG size: 421 [2019-11-06 21:31:56,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:31:56,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:31:56,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:31:56,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:31:56,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:31:56,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:31:56,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:31:56,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:31:56,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:31:56,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:31:57,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:31:57,283 WARN L191 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2019-11-06 21:31:57,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:31:57,474 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2019-11-06 21:31:57,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:31:57,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:31:57,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:31:57,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:31:57,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:31:57,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:31:57,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:31:57,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:31:57,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:31:57,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:31:57,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:31:57,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:31:57,902 WARN L191 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2019-11-06 21:31:57,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:31:57,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:31:57,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:31:57,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:31:58,090 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2019-11-06 21:31:58,091 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [433123787] [2019-11-06 21:31:58,091 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [593877233] [2019-11-06 21:31:58,091 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-06 21:31:58,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:31:58,720 INFO L256 TraceCheckSpWp]: Trace formula consists of 3586 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-06 21:31:58,728 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-06 21:31:58,797 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2019-11-06 21:31:58,797 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-06 21:31:58,798 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [16] total 18 [2019-11-06 21:31:58,798 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039857351] [2019-11-06 21:31:58,799 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-06 21:31:58,799 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 21:31:58,799 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-06 21:31:58,799 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=257, Unknown=0, NotChecked=0, Total=306 [2019-11-06 21:31:58,799 INFO L87 Difference]: Start difference. First operand 770 states and 1187 transitions. Second operand 4 states. [2019-11-06 21:31:58,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 21:31:58,909 INFO L93 Difference]: Finished difference Result 1482 states and 2303 transitions. [2019-11-06 21:31:58,909 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-06 21:31:58,910 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 157 [2019-11-06 21:31:58,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 21:31:58,926 INFO L225 Difference]: With dead ends: 1482 [2019-11-06 21:31:58,926 INFO L226 Difference]: Without dead ends: 770 [2019-11-06 21:31:58,931 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 204 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=53, Invalid=289, Unknown=0, NotChecked=0, Total=342 [2019-11-06 21:31:58,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 770 states. [2019-11-06 21:31:58,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 770 to 770. [2019-11-06 21:31:58,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 770 states. [2019-11-06 21:31:58,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 770 states to 770 states and 1186 transitions. [2019-11-06 21:31:58,975 INFO L78 Accepts]: Start accepts. Automaton has 770 states and 1186 transitions. Word has length 157 [2019-11-06 21:31:58,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 21:31:58,975 INFO L462 AbstractCegarLoop]: Abstraction has 770 states and 1186 transitions. [2019-11-06 21:31:58,976 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-06 21:31:58,976 INFO L276 IsEmpty]: Start isEmpty. Operand 770 states and 1186 transitions. [2019-11-06 21:31:58,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2019-11-06 21:31:58,982 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 21:31:58,986 INFO L410 BasicCegarLoop]: trace histogram [5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 21:31:59,194 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-06 21:31:59,195 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 21:31:59,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 21:31:59,195 INFO L82 PathProgramCache]: Analyzing trace with hash 1893266647, now seen corresponding path program 1 times [2019-11-06 21:31:59,196 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 21:31:59,197 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924568362] [2019-11-06 21:31:59,198 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 21:31:59,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:32:00,306 WARN L191 SmtUtils]: Spent 980.00 ms on a formula simplification that was a NOOP. DAG size: 421 [2019-11-06 21:32:00,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:32:00,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:32:00,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:32:00,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:32:00,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:32:00,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:32:00,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:32:00,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:32:00,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:32:00,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:32:00,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:32:00,705 WARN L191 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2019-11-06 21:32:00,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:32:00,904 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2019-11-06 21:32:00,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:32:00,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:32:00,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:32:01,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:32:01,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:32:01,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:32:01,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:32:01,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:32:01,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:32:01,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:32:01,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:32:01,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:32:01,319 WARN L191 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2019-11-06 21:32:01,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:32:01,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:32:01,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:32:01,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:32:01,522 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2019-11-06 21:32:01,522 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1924568362] [2019-11-06 21:32:01,523 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1530781249] [2019-11-06 21:32:01,523 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-06 21:32:02,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:32:02,224 INFO L256 TraceCheckSpWp]: Trace formula consists of 3587 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-06 21:32:02,231 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-06 21:32:02,295 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2019-11-06 21:32:02,295 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-06 21:32:02,295 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [16] total 18 [2019-11-06 21:32:02,296 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453749471] [2019-11-06 21:32:02,296 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-06 21:32:02,297 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 21:32:02,297 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-06 21:32:02,297 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=257, Unknown=0, NotChecked=0, Total=306 [2019-11-06 21:32:02,297 INFO L87 Difference]: Start difference. First operand 770 states and 1186 transitions. Second operand 4 states. [2019-11-06 21:32:02,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 21:32:02,384 INFO L93 Difference]: Finished difference Result 1482 states and 2302 transitions. [2019-11-06 21:32:02,385 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-06 21:32:02,385 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 158 [2019-11-06 21:32:02,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 21:32:02,391 INFO L225 Difference]: With dead ends: 1482 [2019-11-06 21:32:02,392 INFO L226 Difference]: Without dead ends: 770 [2019-11-06 21:32:02,396 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 205 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=53, Invalid=289, Unknown=0, NotChecked=0, Total=342 [2019-11-06 21:32:02,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 770 states. [2019-11-06 21:32:02,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 770 to 770. [2019-11-06 21:32:02,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 770 states. [2019-11-06 21:32:02,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 770 states to 770 states and 1185 transitions. [2019-11-06 21:32:02,424 INFO L78 Accepts]: Start accepts. Automaton has 770 states and 1185 transitions. Word has length 158 [2019-11-06 21:32:02,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 21:32:02,425 INFO L462 AbstractCegarLoop]: Abstraction has 770 states and 1185 transitions. [2019-11-06 21:32:02,425 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-06 21:32:02,425 INFO L276 IsEmpty]: Start isEmpty. Operand 770 states and 1185 transitions. [2019-11-06 21:32:02,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2019-11-06 21:32:02,428 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 21:32:02,428 INFO L410 BasicCegarLoop]: trace histogram [5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 21:32:02,640 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-06 21:32:02,641 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 21:32:02,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 21:32:02,641 INFO L82 PathProgramCache]: Analyzing trace with hash -192959796, now seen corresponding path program 1 times [2019-11-06 21:32:02,641 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 21:32:02,641 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458687537] [2019-11-06 21:32:02,642 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 21:32:02,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:32:03,690 WARN L191 SmtUtils]: Spent 941.00 ms on a formula simplification that was a NOOP. DAG size: 421 [2019-11-06 21:32:03,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:32:03,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:32:03,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:32:03,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:32:03,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:32:03,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:32:03,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:32:03,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:32:03,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:32:03,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:32:03,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:32:04,079 WARN L191 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2019-11-06 21:32:04,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:32:04,259 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2019-11-06 21:32:04,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:32:04,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:32:04,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:32:04,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:32:04,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:32:04,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:32:04,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:32:04,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:32:04,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:32:04,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:32:04,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:32:04,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:32:04,674 WARN L191 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2019-11-06 21:32:04,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:32:04,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:32:04,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:32:04,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:32:04,799 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2019-11-06 21:32:04,799 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458687537] [2019-11-06 21:32:04,799 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [369704805] [2019-11-06 21:32:04,800 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-06 21:32:05,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:32:05,452 INFO L256 TraceCheckSpWp]: Trace formula consists of 3588 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-06 21:32:05,456 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-06 21:32:05,613 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2019-11-06 21:32:05,614 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-06 21:32:05,614 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [16] total 21 [2019-11-06 21:32:05,615 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471373648] [2019-11-06 21:32:05,615 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-06 21:32:05,615 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 21:32:05,616 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-06 21:32:05,616 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=367, Unknown=0, NotChecked=0, Total=420 [2019-11-06 21:32:05,616 INFO L87 Difference]: Start difference. First operand 770 states and 1185 transitions. Second operand 7 states. [2019-11-06 21:32:05,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 21:32:05,827 INFO L93 Difference]: Finished difference Result 1489 states and 2311 transitions. [2019-11-06 21:32:05,827 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-06 21:32:05,829 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 159 [2019-11-06 21:32:05,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 21:32:05,835 INFO L225 Difference]: With dead ends: 1489 [2019-11-06 21:32:05,836 INFO L226 Difference]: Without dead ends: 781 [2019-11-06 21:32:05,843 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 223 GetRequests, 203 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=57, Invalid=405, Unknown=0, NotChecked=0, Total=462 [2019-11-06 21:32:05,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 781 states. [2019-11-06 21:32:05,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 781 to 777. [2019-11-06 21:32:05,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 777 states. [2019-11-06 21:32:05,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 777 states to 777 states and 1195 transitions. [2019-11-06 21:32:05,880 INFO L78 Accepts]: Start accepts. Automaton has 777 states and 1195 transitions. Word has length 159 [2019-11-06 21:32:05,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 21:32:05,881 INFO L462 AbstractCegarLoop]: Abstraction has 777 states and 1195 transitions. [2019-11-06 21:32:05,881 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-06 21:32:05,881 INFO L276 IsEmpty]: Start isEmpty. Operand 777 states and 1195 transitions. [2019-11-06 21:32:05,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2019-11-06 21:32:05,886 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 21:32:05,886 INFO L410 BasicCegarLoop]: trace histogram [5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 21:32:06,095 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-06 21:32:06,095 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 21:32:06,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 21:32:06,096 INFO L82 PathProgramCache]: Analyzing trace with hash 2103645234, now seen corresponding path program 1 times [2019-11-06 21:32:06,096 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 21:32:06,096 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678953710] [2019-11-06 21:32:06,096 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 21:32:06,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:32:07,194 WARN L191 SmtUtils]: Spent 937.00 ms on a formula simplification that was a NOOP. DAG size: 421 [2019-11-06 21:32:07,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:32:07,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:32:07,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:32:07,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:32:07,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:32:07,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:32:07,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:32:07,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:32:07,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:32:07,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:32:07,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:32:07,633 WARN L191 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2019-11-06 21:32:07,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:32:07,843 WARN L191 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2019-11-06 21:32:07,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:32:07,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:32:07,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:32:07,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:32:08,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:32:08,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:32:08,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:32:08,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:32:08,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:32:08,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:32:08,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:32:08,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:32:08,348 WARN L191 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2019-11-06 21:32:08,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:32:08,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:32:08,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:32:08,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:32:08,503 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2019-11-06 21:32:08,503 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1678953710] [2019-11-06 21:32:08,503 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [47568051] [2019-11-06 21:32:08,503 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-06 21:32:09,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:32:09,154 INFO L256 TraceCheckSpWp]: Trace formula consists of 3589 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-06 21:32:09,159 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-06 21:32:09,230 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2019-11-06 21:32:09,231 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-06 21:32:09,231 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [19] total 21 [2019-11-06 21:32:09,231 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040429756] [2019-11-06 21:32:09,232 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-06 21:32:09,232 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 21:32:09,232 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-06 21:32:09,233 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=367, Unknown=0, NotChecked=0, Total=420 [2019-11-06 21:32:09,233 INFO L87 Difference]: Start difference. First operand 777 states and 1195 transitions. Second operand 4 states. [2019-11-06 21:32:09,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 21:32:09,414 INFO L93 Difference]: Finished difference Result 1494 states and 2322 transitions. [2019-11-06 21:32:09,414 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-06 21:32:09,415 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 160 [2019-11-06 21:32:09,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 21:32:09,421 INFO L225 Difference]: With dead ends: 1494 [2019-11-06 21:32:09,421 INFO L226 Difference]: Without dead ends: 777 [2019-11-06 21:32:09,425 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 207 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=57, Invalid=405, Unknown=0, NotChecked=0, Total=462 [2019-11-06 21:32:09,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 777 states. [2019-11-06 21:32:09,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 777 to 777. [2019-11-06 21:32:09,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 777 states. [2019-11-06 21:32:09,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 777 states to 777 states and 1190 transitions. [2019-11-06 21:32:09,453 INFO L78 Accepts]: Start accepts. Automaton has 777 states and 1190 transitions. Word has length 160 [2019-11-06 21:32:09,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 21:32:09,453 INFO L462 AbstractCegarLoop]: Abstraction has 777 states and 1190 transitions. [2019-11-06 21:32:09,454 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-06 21:32:09,454 INFO L276 IsEmpty]: Start isEmpty. Operand 777 states and 1190 transitions. [2019-11-06 21:32:09,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2019-11-06 21:32:09,457 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 21:32:09,457 INFO L410 BasicCegarLoop]: trace histogram [5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 21:32:09,670 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-06 21:32:09,671 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 21:32:09,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 21:32:09,671 INFO L82 PathProgramCache]: Analyzing trace with hash -1087779282, now seen corresponding path program 1 times [2019-11-06 21:32:09,671 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 21:32:09,671 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [705528525] [2019-11-06 21:32:09,672 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 21:32:09,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat