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/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -i ../../../trunk/examples/svcomp/product-lines/elevator_spec3_product09.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-673a906-m [2019-10-03 02:45:12,354 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-03 02:45:12,356 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-03 02:45:12,368 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-03 02:45:12,368 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-03 02:45:12,369 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-03 02:45:12,370 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-03 02:45:12,372 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-03 02:45:12,374 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-03 02:45:12,375 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-03 02:45:12,376 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-03 02:45:12,377 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-03 02:45:12,377 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-03 02:45:12,378 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-03 02:45:12,379 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-03 02:45:12,380 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-03 02:45:12,381 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-03 02:45:12,382 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-03 02:45:12,384 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-03 02:45:12,386 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-03 02:45:12,388 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-03 02:45:12,389 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-03 02:45:12,390 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-03 02:45:12,391 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-03 02:45:12,394 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-03 02:45:12,394 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-03 02:45:12,394 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-03 02:45:12,395 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-03 02:45:12,395 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-03 02:45:12,396 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-03 02:45:12,397 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-03 02:45:12,398 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-03 02:45:12,398 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-03 02:45:12,399 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-03 02:45:12,400 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-03 02:45:12,400 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-03 02:45:12,401 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-03 02:45:12,401 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-03 02:45:12,402 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-03 02:45:12,402 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-03 02:45:12,403 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-03 02:45:12,404 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-10-03 02:45:12,419 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-03 02:45:12,419 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-03 02:45:12,420 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-10-03 02:45:12,420 INFO L138 SettingsManager]: * Log level for plugins=info [2019-10-03 02:45:12,420 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-03 02:45:12,421 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-03 02:45:12,421 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-10-03 02:45:12,421 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-10-03 02:45:12,421 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-03 02:45:12,422 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-10-03 02:45:12,422 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-03 02:45:12,422 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-03 02:45:12,423 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-03 02:45:12,423 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-03 02:45:12,423 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-03 02:45:12,423 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-03 02:45:12,423 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-03 02:45:12,424 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-03 02:45:12,424 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-03 02:45:12,424 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-03 02:45:12,424 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-03 02:45:12,424 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-10-03 02:45:12,425 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-03 02:45:12,425 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-03 02:45:12,425 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-03 02:45:12,425 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-03 02:45:12,425 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-03 02:45:12,426 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-03 02:45:12,426 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-03 02:45:12,426 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-10-03 02:45:12,459 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-03 02:45:12,472 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-03 02:45:12,475 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-03 02:45:12,477 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-03 02:45:12,477 INFO L275 PluginConnector]: CDTParser initialized [2019-10-03 02:45:12,478 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec3_product09.cil.c [2019-10-03 02:45:12,537 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4f8aba99a/3ae78af364b149648ae3bc82e4d5817c/FLAGbb77bdf8c [2019-10-03 02:45:13,159 INFO L306 CDTParser]: Found 1 translation units. [2019-10-03 02:45:13,160 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec3_product09.cil.c [2019-10-03 02:45:13,181 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4f8aba99a/3ae78af364b149648ae3bc82e4d5817c/FLAGbb77bdf8c [2019-10-03 02:45:13,378 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4f8aba99a/3ae78af364b149648ae3bc82e4d5817c [2019-10-03 02:45:13,389 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-03 02:45:13,390 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-03 02:45:13,392 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-03 02:45:13,392 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-03 02:45:13,397 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-03 02:45:13,398 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 02:45:13" (1/1) ... [2019-10-03 02:45:13,401 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ba36926 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:45:13, skipping insertion in model container [2019-10-03 02:45:13,401 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 02:45:13" (1/1) ... [2019-10-03 02:45:13,409 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-03 02:45:13,504 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-03 02:45:14,221 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 02:45:14,242 INFO L188 MainTranslator]: Completed pre-run [2019-10-03 02:45:14,387 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 02:45:14,453 INFO L192 MainTranslator]: Completed translation [2019-10-03 02:45:14,454 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:45:14 WrapperNode [2019-10-03 02:45:14,454 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-03 02:45:14,455 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-03 02:45:14,455 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-03 02:45:14,455 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-03 02:45:14,469 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:45:14" (1/1) ... [2019-10-03 02:45:14,470 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:45:14" (1/1) ... [2019-10-03 02:45:14,509 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:45:14" (1/1) ... [2019-10-03 02:45:14,511 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:45:14" (1/1) ... [2019-10-03 02:45:14,579 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:45:14" (1/1) ... [2019-10-03 02:45:14,604 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:45:14" (1/1) ... [2019-10-03 02:45:14,614 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:45:14" (1/1) ... [2019-10-03 02:45:14,636 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-03 02:45:14,637 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-03 02:45:14,637 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-03 02:45:14,638 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-03 02:45:14,642 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:45:14" (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 [2019-10-03 02:45:14,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-03 02:45:14,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-03 02:45:14,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-03 02:45:14,741 INFO L138 BoogieDeclarations]: Found implementation of procedure spec1 [2019-10-03 02:45:14,741 INFO L138 BoogieDeclarations]: Found implementation of procedure spec14 [2019-10-03 02:45:14,741 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-03 02:45:14,741 INFO L138 BoogieDeclarations]: Found implementation of procedure initFloors [2019-10-03 02:45:14,741 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2019-10-03 02:45:14,742 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2019-10-03 02:45:14,742 INFO L138 BoogieDeclarations]: Found implementation of procedure callOnFloor [2019-10-03 02:45:14,742 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2019-10-03 02:45:14,742 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2019-10-03 02:45:14,742 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2019-10-03 02:45:14,743 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2019-10-03 02:45:14,743 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2019-10-03 02:45:14,743 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2019-10-03 02:45:14,743 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2019-10-03 02:45:14,743 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-03 02:45:14,744 INFO L138 BoogieDeclarations]: Found implementation of procedure initTopDown [2019-10-03 02:45:14,744 INFO L138 BoogieDeclarations]: Found implementation of procedure initBottomUp [2019-10-03 02:45:14,744 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2019-10-03 02:45:14,744 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2019-10-03 02:45:14,744 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator__wrappee__base [2019-10-03 02:45:14,744 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2019-10-03 02:45:14,745 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2019-10-03 02:45:14,745 INFO L138 BoogieDeclarations]: Found implementation of procedure resetFloorButton [2019-10-03 02:45:14,745 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2019-10-03 02:45:14,745 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2019-10-03 02:45:14,745 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2019-10-03 02:45:14,745 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentHeading [2019-10-03 02:45:14,746 INFO L138 BoogieDeclarations]: Found implementation of procedure isEmpty [2019-10-03 02:45:14,746 INFO L138 BoogieDeclarations]: Found implementation of procedure anyStopRequested [2019-10-03 02:45:14,746 INFO L138 BoogieDeclarations]: Found implementation of procedure isIdle [2019-10-03 02:45:14,746 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2019-10-03 02:45:14,746 INFO L138 BoogieDeclarations]: Found implementation of procedure isAnyLiftButtonPressed [2019-10-03 02:45:14,746 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2019-10-03 02:45:14,747 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor [2019-10-03 02:45:14,747 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2019-10-03 02:45:14,747 INFO L138 BoogieDeclarations]: Found implementation of procedure processWaitingOnFloor [2019-10-03 02:45:14,747 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-03 02:45:14,747 INFO L138 BoogieDeclarations]: Found implementation of procedure printState [2019-10-03 02:45:14,747 INFO L138 BoogieDeclarations]: Found implementation of procedure existInLiftCallsInDirection [2019-10-03 02:45:14,747 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-03 02:45:14,748 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-03 02:45:14,748 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-03 02:45:14,748 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-03 02:45:14,748 INFO L138 BoogieDeclarations]: Found implementation of procedure get_nondetMinMax07 [2019-10-03 02:45:14,748 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2019-10-03 02:45:14,748 INFO L138 BoogieDeclarations]: Found implementation of procedure aliceCall [2019-10-03 02:45:14,749 INFO L138 BoogieDeclarations]: Found implementation of procedure angelinaCall [2019-10-03 02:45:14,749 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckCall [2019-10-03 02:45:14,749 INFO L138 BoogieDeclarations]: Found implementation of procedure monicaCall [2019-10-03 02:45:14,749 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2019-10-03 02:45:14,749 INFO L138 BoogieDeclarations]: Found implementation of procedure threeTS [2019-10-03 02:45:14,749 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-03 02:45:14,749 INFO L138 BoogieDeclarations]: Found implementation of procedure randomSequenceOfActions [2019-10-03 02:45:14,750 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest_Simple [2019-10-03 02:45:14,750 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification1 [2019-10-03 02:45:14,750 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-03 02:45:14,750 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification3 [2019-10-03 02:45:14,750 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-03 02:45:14,750 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-03 02:45:14,751 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-03 02:45:14,751 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2019-10-03 02:45:14,751 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__2 [2019-10-03 02:45:14,751 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-03 02:45:14,751 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-03 02:45:14,751 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-03 02:45:14,751 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-03 02:45:14,752 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-03 02:45:14,752 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-03 02:45:14,752 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-03 02:45:14,752 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-03 02:45:14,752 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2019-10-03 02:45:14,752 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2019-10-03 02:45:14,753 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-03 02:45:14,753 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2019-10-03 02:45:14,753 INFO L130 BoogieDeclarations]: Found specification of procedure printState [2019-10-03 02:45:14,753 INFO L130 BoogieDeclarations]: Found specification of procedure initTopDown [2019-10-03 02:45:14,753 INFO L130 BoogieDeclarations]: Found specification of procedure initBottomUp [2019-10-03 02:45:14,753 INFO L130 BoogieDeclarations]: Found specification of procedure spec1 [2019-10-03 02:45:14,754 INFO L130 BoogieDeclarations]: Found specification of procedure spec14 [2019-10-03 02:45:14,754 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2019-10-03 02:45:14,754 INFO L130 BoogieDeclarations]: Found specification of procedure threeTS [2019-10-03 02:45:14,754 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-03 02:45:14,754 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-03 02:45:14,754 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2019-10-03 02:45:14,755 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2019-10-03 02:45:14,755 INFO L130 BoogieDeclarations]: Found specification of procedure callOnFloor [2019-10-03 02:45:14,755 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2019-10-03 02:45:14,755 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2019-10-03 02:45:14,755 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2019-10-03 02:45:14,755 INFO L130 BoogieDeclarations]: Found specification of procedure initFloors [2019-10-03 02:45:14,756 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2019-10-03 02:45:14,756 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2019-10-03 02:45:14,756 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-03 02:45:14,756 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-03 02:45:14,756 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2019-10-03 02:45:14,757 INFO L130 BoogieDeclarations]: Found specification of procedure isEmpty [2019-10-03 02:45:14,757 INFO L130 BoogieDeclarations]: Found specification of procedure isAnyLiftButtonPressed [2019-10-03 02:45:14,757 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2019-10-03 02:45:14,757 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2019-10-03 02:45:14,757 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2019-10-03 02:45:14,757 INFO L130 BoogieDeclarations]: Found specification of procedure isIdle [2019-10-03 02:45:14,758 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator__wrappee__base [2019-10-03 02:45:14,758 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2019-10-03 02:45:14,758 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2019-10-03 02:45:14,758 INFO L130 BoogieDeclarations]: Found specification of procedure resetFloorButton [2019-10-03 02:45:14,758 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentHeading [2019-10-03 02:45:14,759 INFO L130 BoogieDeclarations]: Found specification of procedure anyStopRequested [2019-10-03 02:45:14,759 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2019-10-03 02:45:14,759 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2019-10-03 02:45:14,759 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor [2019-10-03 02:45:14,759 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2019-10-03 02:45:14,759 INFO L130 BoogieDeclarations]: Found specification of procedure processWaitingOnFloor [2019-10-03 02:45:14,760 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2019-10-03 02:45:14,760 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__2 [2019-10-03 02:45:14,760 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-03 02:45:14,760 INFO L130 BoogieDeclarations]: Found specification of procedure existInLiftCallsInDirection [2019-10-03 02:45:14,760 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-03 02:45:14,761 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-03 02:45:14,761 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-03 02:45:14,761 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-03 02:45:14,761 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-03 02:45:14,761 INFO L130 BoogieDeclarations]: Found specification of procedure get_nondetMinMax07 [2019-10-03 02:45:14,761 INFO L130 BoogieDeclarations]: Found specification of procedure aliceCall [2019-10-03 02:45:14,762 INFO L130 BoogieDeclarations]: Found specification of procedure angelinaCall [2019-10-03 02:45:14,762 INFO L130 BoogieDeclarations]: Found specification of procedure chuckCall [2019-10-03 02:45:14,762 INFO L130 BoogieDeclarations]: Found specification of procedure monicaCall [2019-10-03 02:45:14,762 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2019-10-03 02:45:14,762 INFO L130 BoogieDeclarations]: Found specification of procedure randomSequenceOfActions [2019-10-03 02:45:14,763 INFO L130 BoogieDeclarations]: Found specification of procedure runTest_Simple [2019-10-03 02:45:14,763 INFO L130 BoogieDeclarations]: Found specification of procedure Specification1 [2019-10-03 02:45:14,763 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-03 02:45:14,763 INFO L130 BoogieDeclarations]: Found specification of procedure Specification3 [2019-10-03 02:45:14,763 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-03 02:45:14,764 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-03 02:45:14,764 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-03 02:45:14,764 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-03 02:45:14,764 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-03 02:45:14,764 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-03 02:45:14,765 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-03 02:45:14,765 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-03 02:45:14,765 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-03 02:45:14,765 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-03 02:45:14,765 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-03 02:45:14,765 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-03 02:45:14,766 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-03 02:45:14,766 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-03 02:45:14,766 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-03 02:45:14,766 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-03 02:45:14,766 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-03 02:45:14,767 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-03 02:45:14,767 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-03 02:45:14,767 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-03 02:45:14,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-03 02:45:14,767 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-03 02:45:17,098 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-03 02:45:17,098 INFO L283 CfgBuilder]: Removed 10 assume(true) statements. [2019-10-03 02:45:17,100 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 02:45:17 BoogieIcfgContainer [2019-10-03 02:45:17,100 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-03 02:45:17,102 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-03 02:45:17,102 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-03 02:45:17,106 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-03 02:45:17,106 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.10 02:45:13" (1/3) ... [2019-10-03 02:45:17,107 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13a88e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 02:45:17, skipping insertion in model container [2019-10-03 02:45:17,108 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:45:14" (2/3) ... [2019-10-03 02:45:17,108 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13a88e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 02:45:17, skipping insertion in model container [2019-10-03 02:45:17,108 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 02:45:17" (3/3) ... [2019-10-03 02:45:17,110 INFO L109 eAbstractionObserver]: Analyzing ICFG elevator_spec3_product09.cil.c [2019-10-03 02:45:17,123 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-03 02:45:17,134 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-03 02:45:17,157 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-03 02:45:17,193 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-10-03 02:45:17,193 INFO L378 AbstractCegarLoop]: Hoare is false [2019-10-03 02:45:17,193 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-03 02:45:17,193 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-03 02:45:17,194 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-03 02:45:17,194 INFO L382 AbstractCegarLoop]: Difference is false [2019-10-03 02:45:17,194 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-03 02:45:17,194 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-03 02:45:17,244 INFO L276 IsEmpty]: Start isEmpty. Operand 757 states. [2019-10-03 02:45:17,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2019-10-03 02:45:17,285 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:45:17,287 INFO L411 BasicCegarLoop]: trace histogram [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] [2019-10-03 02:45:17,291 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:45:17,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:45:17,298 INFO L82 PathProgramCache]: Analyzing trace with hash 1161933342, now seen corresponding path program 1 times [2019-10-03 02:45:17,300 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:45:17,367 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:45:17,367 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:45:17,367 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:45:17,367 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:45:17,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:45:18,090 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-03 02:45:18,093 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:45:18,093 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-03 02:45:18,093 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:45:18,100 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-03 02:45:18,114 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-03 02:45:18,115 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-03 02:45:18,118 INFO L87 Difference]: Start difference. First operand 757 states. Second operand 7 states. [2019-10-03 02:45:18,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:45:18,409 INFO L93 Difference]: Finished difference Result 616 states and 988 transitions. [2019-10-03 02:45:18,409 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-03 02:45:18,412 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 115 [2019-10-03 02:45:18,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:45:18,445 INFO L225 Difference]: With dead ends: 616 [2019-10-03 02:45:18,446 INFO L226 Difference]: Without dead ends: 605 [2019-10-03 02:45:18,449 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-10-03 02:45:18,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 605 states. [2019-10-03 02:45:18,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 605 to 603. [2019-10-03 02:45:18,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 603 states. [2019-10-03 02:45:18,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 603 states to 603 states and 971 transitions. [2019-10-03 02:45:18,618 INFO L78 Accepts]: Start accepts. Automaton has 603 states and 971 transitions. Word has length 115 [2019-10-03 02:45:18,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:45:18,620 INFO L475 AbstractCegarLoop]: Abstraction has 603 states and 971 transitions. [2019-10-03 02:45:18,620 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-03 02:45:18,620 INFO L276 IsEmpty]: Start isEmpty. Operand 603 states and 971 transitions. [2019-10-03 02:45:18,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2019-10-03 02:45:18,626 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:45:18,627 INFO L411 BasicCegarLoop]: trace histogram [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] [2019-10-03 02:45:18,627 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:45:18,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:45:18,628 INFO L82 PathProgramCache]: Analyzing trace with hash -1514671527, now seen corresponding path program 1 times [2019-10-03 02:45:18,628 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:45:18,633 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:45:18,633 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:45:18,633 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:45:18,633 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:45:18,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:45:18,887 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-03 02:45:18,888 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:45:18,888 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-03 02:45:18,888 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:45:18,895 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-03 02:45:18,896 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-03 02:45:18,896 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-03 02:45:18,897 INFO L87 Difference]: Start difference. First operand 603 states and 971 transitions. Second operand 4 states. [2019-10-03 02:45:18,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:45:18,980 INFO L93 Difference]: Finished difference Result 601 states and 966 transitions. [2019-10-03 02:45:18,982 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-03 02:45:18,982 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 116 [2019-10-03 02:45:18,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:45:18,988 INFO L225 Difference]: With dead ends: 601 [2019-10-03 02:45:18,988 INFO L226 Difference]: Without dead ends: 585 [2019-10-03 02:45:18,989 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-03 02:45:18,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 585 states. [2019-10-03 02:45:19,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 585 to 585. [2019-10-03 02:45:19,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 585 states. [2019-10-03 02:45:19,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 585 states to 585 states and 938 transitions. [2019-10-03 02:45:19,016 INFO L78 Accepts]: Start accepts. Automaton has 585 states and 938 transitions. Word has length 116 [2019-10-03 02:45:19,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:45:19,017 INFO L475 AbstractCegarLoop]: Abstraction has 585 states and 938 transitions. [2019-10-03 02:45:19,017 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-03 02:45:19,017 INFO L276 IsEmpty]: Start isEmpty. Operand 585 states and 938 transitions. [2019-10-03 02:45:19,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2019-10-03 02:45:19,020 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:45:19,020 INFO L411 BasicCegarLoop]: trace histogram [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] [2019-10-03 02:45:19,021 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:45:19,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:45:19,021 INFO L82 PathProgramCache]: Analyzing trace with hash 1422688811, now seen corresponding path program 1 times [2019-10-03 02:45:19,021 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:45:19,025 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:45:19,025 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:45:19,025 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:45:19,025 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:45:19,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:45:19,235 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-03 02:45:19,236 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:45:19,236 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-03 02:45:19,236 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:45:19,237 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-03 02:45:19,237 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-03 02:45:19,237 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-03 02:45:19,237 INFO L87 Difference]: Start difference. First operand 585 states and 938 transitions. Second operand 7 states. [2019-10-03 02:45:19,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:45:19,343 INFO L93 Difference]: Finished difference Result 588 states and 941 transitions. [2019-10-03 02:45:19,344 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-03 02:45:19,345 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 116 [2019-10-03 02:45:19,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:45:19,352 INFO L225 Difference]: With dead ends: 588 [2019-10-03 02:45:19,352 INFO L226 Difference]: Without dead ends: 579 [2019-10-03 02:45:19,353 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-10-03 02:45:19,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 579 states. [2019-10-03 02:45:19,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 579 to 579. [2019-10-03 02:45:19,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 579 states. [2019-10-03 02:45:19,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 579 states to 579 states and 925 transitions. [2019-10-03 02:45:19,385 INFO L78 Accepts]: Start accepts. Automaton has 579 states and 925 transitions. Word has length 116 [2019-10-03 02:45:19,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:45:19,386 INFO L475 AbstractCegarLoop]: Abstraction has 579 states and 925 transitions. [2019-10-03 02:45:19,387 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-03 02:45:19,387 INFO L276 IsEmpty]: Start isEmpty. Operand 579 states and 925 transitions. [2019-10-03 02:45:19,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2019-10-03 02:45:19,392 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:45:19,392 INFO L411 BasicCegarLoop]: trace histogram [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] [2019-10-03 02:45:19,393 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:45:19,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:45:19,393 INFO L82 PathProgramCache]: Analyzing trace with hash 877146082, now seen corresponding path program 1 times [2019-10-03 02:45:19,394 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:45:19,397 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:45:19,397 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:45:19,397 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:45:19,435 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:45:19,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:45:19,651 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-03 02:45:19,652 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:45:19,652 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-03 02:45:19,652 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:45:19,654 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-03 02:45:19,654 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-03 02:45:19,655 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-03 02:45:19,655 INFO L87 Difference]: Start difference. First operand 579 states and 925 transitions. Second operand 7 states. [2019-10-03 02:45:19,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:45:19,733 INFO L93 Difference]: Finished difference Result 582 states and 928 transitions. [2019-10-03 02:45:19,733 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-03 02:45:19,734 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 117 [2019-10-03 02:45:19,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:45:19,738 INFO L225 Difference]: With dead ends: 582 [2019-10-03 02:45:19,738 INFO L226 Difference]: Without dead ends: 573 [2019-10-03 02:45:19,739 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-10-03 02:45:19,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 573 states. [2019-10-03 02:45:19,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 573 to 573. [2019-10-03 02:45:19,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 573 states. [2019-10-03 02:45:19,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 573 states to 573 states and 912 transitions. [2019-10-03 02:45:19,761 INFO L78 Accepts]: Start accepts. Automaton has 573 states and 912 transitions. Word has length 117 [2019-10-03 02:45:19,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:45:19,761 INFO L475 AbstractCegarLoop]: Abstraction has 573 states and 912 transitions. [2019-10-03 02:45:19,761 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-03 02:45:19,761 INFO L276 IsEmpty]: Start isEmpty. Operand 573 states and 912 transitions. [2019-10-03 02:45:19,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2019-10-03 02:45:19,764 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:45:19,764 INFO L411 BasicCegarLoop]: trace histogram [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] [2019-10-03 02:45:19,765 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:45:19,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:45:19,765 INFO L82 PathProgramCache]: Analyzing trace with hash 1106162991, now seen corresponding path program 1 times [2019-10-03 02:45:19,765 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:45:19,769 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:45:19,769 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:45:19,769 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:45:19,769 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:45:19,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:45:19,920 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-03 02:45:19,921 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:45:19,921 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-03 02:45:19,921 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:45:19,921 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-03 02:45:19,922 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-03 02:45:19,922 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-03 02:45:19,922 INFO L87 Difference]: Start difference. First operand 573 states and 912 transitions. Second operand 7 states. [2019-10-03 02:45:20,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:45:20,024 INFO L93 Difference]: Finished difference Result 576 states and 915 transitions. [2019-10-03 02:45:20,024 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-03 02:45:20,024 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 118 [2019-10-03 02:45:20,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:45:20,041 INFO L225 Difference]: With dead ends: 576 [2019-10-03 02:45:20,041 INFO L226 Difference]: Without dead ends: 567 [2019-10-03 02:45:20,041 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-10-03 02:45:20,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 567 states. [2019-10-03 02:45:20,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 567 to 567. [2019-10-03 02:45:20,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 567 states. [2019-10-03 02:45:20,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 567 states to 567 states and 899 transitions. [2019-10-03 02:45:20,062 INFO L78 Accepts]: Start accepts. Automaton has 567 states and 899 transitions. Word has length 118 [2019-10-03 02:45:20,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:45:20,062 INFO L475 AbstractCegarLoop]: Abstraction has 567 states and 899 transitions. [2019-10-03 02:45:20,062 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-03 02:45:20,063 INFO L276 IsEmpty]: Start isEmpty. Operand 567 states and 899 transitions. [2019-10-03 02:45:20,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2019-10-03 02:45:20,068 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:45:20,068 INFO L411 BasicCegarLoop]: trace histogram [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] [2019-10-03 02:45:20,068 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:45:20,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:45:20,069 INFO L82 PathProgramCache]: Analyzing trace with hash -74424208, now seen corresponding path program 1 times [2019-10-03 02:45:20,069 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:45:20,076 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:45:20,076 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:45:20,077 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:45:20,077 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:45:20,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:45:20,263 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-03 02:45:20,263 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:45:20,264 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-03 02:45:20,264 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:45:20,264 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-03 02:45:20,265 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-03 02:45:20,265 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-03 02:45:20,265 INFO L87 Difference]: Start difference. First operand 567 states and 899 transitions. Second operand 7 states. [2019-10-03 02:45:20,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:45:20,351 INFO L93 Difference]: Finished difference Result 570 states and 902 transitions. [2019-10-03 02:45:20,351 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-03 02:45:20,352 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 118 [2019-10-03 02:45:20,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:45:20,362 INFO L225 Difference]: With dead ends: 570 [2019-10-03 02:45:20,362 INFO L226 Difference]: Without dead ends: 567 [2019-10-03 02:45:20,362 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-10-03 02:45:20,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 567 states. [2019-10-03 02:45:20,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 567 to 567. [2019-10-03 02:45:20,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 567 states. [2019-10-03 02:45:20,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 567 states to 567 states and 898 transitions. [2019-10-03 02:45:20,392 INFO L78 Accepts]: Start accepts. Automaton has 567 states and 898 transitions. Word has length 118 [2019-10-03 02:45:20,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:45:20,393 INFO L475 AbstractCegarLoop]: Abstraction has 567 states and 898 transitions. [2019-10-03 02:45:20,393 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-03 02:45:20,393 INFO L276 IsEmpty]: Start isEmpty. Operand 567 states and 898 transitions. [2019-10-03 02:45:20,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2019-10-03 02:45:20,397 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:45:20,397 INFO L411 BasicCegarLoop]: trace histogram [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] [2019-10-03 02:45:20,398 INFO L418 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:45:20,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:45:20,398 INFO L82 PathProgramCache]: Analyzing trace with hash -423275098, now seen corresponding path program 1 times [2019-10-03 02:45:20,398 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:45:20,402 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:45:20,403 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:45:20,403 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:45:20,403 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:45:20,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:45:20,609 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-03 02:45:20,609 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:45:20,610 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-03 02:45:20,610 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:45:20,610 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-03 02:45:20,611 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-03 02:45:20,611 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-03 02:45:20,611 INFO L87 Difference]: Start difference. First operand 567 states and 898 transitions. Second operand 5 states. [2019-10-03 02:45:20,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:45:20,698 INFO L93 Difference]: Finished difference Result 569 states and 899 transitions. [2019-10-03 02:45:20,698 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-03 02:45:20,698 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 119 [2019-10-03 02:45:20,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:45:20,703 INFO L225 Difference]: With dead ends: 569 [2019-10-03 02:45:20,704 INFO L226 Difference]: Without dead ends: 567 [2019-10-03 02:45:20,704 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-03 02:45:20,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 567 states. [2019-10-03 02:45:20,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 567 to 567. [2019-10-03 02:45:20,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 567 states. [2019-10-03 02:45:20,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 567 states to 567 states and 897 transitions. [2019-10-03 02:45:20,730 INFO L78 Accepts]: Start accepts. Automaton has 567 states and 897 transitions. Word has length 119 [2019-10-03 02:45:20,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:45:20,731 INFO L475 AbstractCegarLoop]: Abstraction has 567 states and 897 transitions. [2019-10-03 02:45:20,731 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-03 02:45:20,731 INFO L276 IsEmpty]: Start isEmpty. Operand 567 states and 897 transitions. [2019-10-03 02:45:20,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2019-10-03 02:45:20,735 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:45:20,735 INFO L411 BasicCegarLoop]: trace histogram [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] [2019-10-03 02:45:20,736 INFO L418 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:45:20,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:45:20,736 INFO L82 PathProgramCache]: Analyzing trace with hash -161455577, now seen corresponding path program 1 times [2019-10-03 02:45:20,736 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:45:20,740 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:45:20,740 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:45:20,740 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:45:20,740 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:45:20,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:45:20,911 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-03 02:45:20,912 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:45:20,912 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-03 02:45:20,912 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:45:20,913 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-03 02:45:20,914 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-03 02:45:20,914 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-03 02:45:20,914 INFO L87 Difference]: Start difference. First operand 567 states and 897 transitions. Second operand 5 states. [2019-10-03 02:45:21,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:45:21,047 INFO L93 Difference]: Finished difference Result 569 states and 898 transitions. [2019-10-03 02:45:21,047 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-03 02:45:21,048 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 120 [2019-10-03 02:45:21,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:45:21,052 INFO L225 Difference]: With dead ends: 569 [2019-10-03 02:45:21,052 INFO L226 Difference]: Without dead ends: 567 [2019-10-03 02:45:21,053 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-03 02:45:21,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 567 states. [2019-10-03 02:45:21,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 567 to 567. [2019-10-03 02:45:21,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 567 states. [2019-10-03 02:45:21,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 567 states to 567 states and 896 transitions. [2019-10-03 02:45:21,075 INFO L78 Accepts]: Start accepts. Automaton has 567 states and 896 transitions. Word has length 120 [2019-10-03 02:45:21,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:45:21,075 INFO L475 AbstractCegarLoop]: Abstraction has 567 states and 896 transitions. [2019-10-03 02:45:21,075 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-03 02:45:21,075 INFO L276 IsEmpty]: Start isEmpty. Operand 567 states and 896 transitions. [2019-10-03 02:45:21,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2019-10-03 02:45:21,078 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:45:21,078 INFO L411 BasicCegarLoop]: trace histogram [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] [2019-10-03 02:45:21,079 INFO L418 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:45:21,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:45:21,079 INFO L82 PathProgramCache]: Analyzing trace with hash -158807839, now seen corresponding path program 1 times [2019-10-03 02:45:21,079 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:45:21,083 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:45:21,083 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:45:21,084 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:45:21,084 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:45:21,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:45:21,233 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-03 02:45:21,234 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:45:21,234 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-03 02:45:21,234 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:45:21,235 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-03 02:45:21,236 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-03 02:45:21,236 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-03 02:45:21,236 INFO L87 Difference]: Start difference. First operand 567 states and 896 transitions. Second operand 5 states. [2019-10-03 02:45:21,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:45:21,296 INFO L93 Difference]: Finished difference Result 569 states and 897 transitions. [2019-10-03 02:45:21,296 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-03 02:45:21,297 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 121 [2019-10-03 02:45:21,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:45:21,301 INFO L225 Difference]: With dead ends: 569 [2019-10-03 02:45:21,301 INFO L226 Difference]: Without dead ends: 567 [2019-10-03 02:45:21,303 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-03 02:45:21,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 567 states. [2019-10-03 02:45:21,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 567 to 567. [2019-10-03 02:45:21,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 567 states. [2019-10-03 02:45:21,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 567 states to 567 states and 895 transitions. [2019-10-03 02:45:21,326 INFO L78 Accepts]: Start accepts. Automaton has 567 states and 895 transitions. Word has length 121 [2019-10-03 02:45:21,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:45:21,326 INFO L475 AbstractCegarLoop]: Abstraction has 567 states and 895 transitions. [2019-10-03 02:45:21,327 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-03 02:45:21,327 INFO L276 IsEmpty]: Start isEmpty. Operand 567 states and 895 transitions. [2019-10-03 02:45:21,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2019-10-03 02:45:21,332 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:45:21,332 INFO L411 BasicCegarLoop]: trace histogram [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] [2019-10-03 02:45:21,333 INFO L418 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:45:21,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:45:21,333 INFO L82 PathProgramCache]: Analyzing trace with hash 399449218, now seen corresponding path program 1 times [2019-10-03 02:45:21,333 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:45:21,338 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:45:21,338 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:45:21,338 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:45:21,338 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:45:21,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:45:21,520 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-03 02:45:21,520 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:45:21,520 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-03 02:45:21,521 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:45:21,521 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-03 02:45:21,521 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-03 02:45:21,522 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-03 02:45:21,522 INFO L87 Difference]: Start difference. First operand 567 states and 895 transitions. Second operand 5 states. [2019-10-03 02:45:21,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:45:21,580 INFO L93 Difference]: Finished difference Result 569 states and 896 transitions. [2019-10-03 02:45:21,580 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-03 02:45:21,580 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 122 [2019-10-03 02:45:21,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:45:21,585 INFO L225 Difference]: With dead ends: 569 [2019-10-03 02:45:21,585 INFO L226 Difference]: Without dead ends: 567 [2019-10-03 02:45:21,586 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-03 02:45:21,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 567 states. [2019-10-03 02:45:21,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 567 to 567. [2019-10-03 02:45:21,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 567 states. [2019-10-03 02:45:21,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 567 states to 567 states and 894 transitions. [2019-10-03 02:45:21,605 INFO L78 Accepts]: Start accepts. Automaton has 567 states and 894 transitions. Word has length 122 [2019-10-03 02:45:21,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:45:21,606 INFO L475 AbstractCegarLoop]: Abstraction has 567 states and 894 transitions. [2019-10-03 02:45:21,606 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-03 02:45:21,606 INFO L276 IsEmpty]: Start isEmpty. Operand 567 states and 894 transitions. [2019-10-03 02:45:21,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2019-10-03 02:45:21,609 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:45:21,609 INFO L411 BasicCegarLoop]: trace histogram [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] [2019-10-03 02:45:21,609 INFO L418 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:45:21,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:45:21,610 INFO L82 PathProgramCache]: Analyzing trace with hash 1001725980, now seen corresponding path program 1 times [2019-10-03 02:45:21,610 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:45:21,613 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:45:21,613 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:45:21,614 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:45:21,614 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:45:21,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:45:21,840 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-03 02:45:21,840 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-03 02:45:21,841 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-10-03 02:45:21,842 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 124 with the following transitions: [2019-10-03 02:45:21,845 INFO L207 CegarAbsIntRunner]: [55], [56], [57], [58], [315], [319], [322], [407], [408], [575], [578], [737], [753], [755], [757], [833], [836], [933], [936], [941], [944], [1010], [1015], [1048], [1049], [1084], [1086], [1115], [1117], [1120], [1128], [1129], [1165], [1201], [1237], [1273], [1276], [1279], [1312], [1313], [1314], [1363], [1368], [1373], [1378], [1383], [1386], [1390], [1577], [1580], [1602], [1603], [1616], [1619], [1625], [1629], [1742], [1743], [1835], [1838], [1840], [1843], [1869], [1871], [1873], [1876], [1889], [1903], [1917], [1931], [1945], [2019], [2285], [2289], [2292], [2310], [2479], [2480], [2481], [2482], [2483], [2484], [2485], [2486], [2487], [2539], [2540], [2541], [2542], [2543], [2544], [2545], [2546], [2547], [2575], [2576], [2577], [2578], [2607], [2608], [2609], [2610], [2621], [2639], [2640], [2641], [2642], [2645], [2646], [2647], [2673], [2697], [2698], [2699], [2705], [2706], [2707], [2708], [2739], [2740], [2741] [2019-10-03 02:45:21,911 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-10-03 02:45:21,911 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-03 02:45:22,110 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-10-03 02:45:22,113 INFO L272 AbstractInterpreter]: Visited 2 different actions 2 times. Never merged. Never widened. Performed 178 root evaluator evaluations with a maximum evaluation depth of 0. Performed 178 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 250 variables. [2019-10-03 02:45:22,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:45:22,121 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-10-03 02:45:22,192 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-10-03 02:45:22,192 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-10-03 02:45:22,205 INFO L420 sIntCurrentIteration]: We unified 122 AI predicates to 122 [2019-10-03 02:45:22,206 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-10-03 02:45:22,207 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-03 02:45:22,207 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [11] total 11 [2019-10-03 02:45:22,208 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:45:22,208 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-03 02:45:22,209 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-03 02:45:22,209 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-03 02:45:22,210 INFO L87 Difference]: Start difference. First operand 567 states and 894 transitions. Second operand 2 states. [2019-10-03 02:45:22,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:45:22,210 INFO L93 Difference]: Finished difference Result 2 states and 1 transitions. [2019-10-03 02:45:22,210 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-03 02:45:22,211 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 123 [2019-10-03 02:45:22,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:45:22,212 INFO L225 Difference]: With dead ends: 2 [2019-10-03 02:45:22,212 INFO L226 Difference]: Without dead ends: 0 [2019-10-03 02:45:22,213 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-03 02:45:22,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-03 02:45:22,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-03 02:45:22,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-03 02:45:22,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-03 02:45:22,215 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 123 [2019-10-03 02:45:22,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:45:22,215 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-03 02:45:22,215 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-03 02:45:22,216 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-03 02:45:22,216 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-03 02:45:22,225 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.10 02:45:22 BoogieIcfgContainer [2019-10-03 02:45:22,225 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-03 02:45:22,229 INFO L168 Benchmark]: Toolchain (without parser) took 8837.00 ms. Allocated memory was 138.9 MB in the beginning and 416.8 MB in the end (delta: 277.9 MB). Free memory was 83.2 MB in the beginning and 250.9 MB in the end (delta: -167.7 MB). Peak memory consumption was 110.2 MB. Max. memory is 7.1 GB. [2019-10-03 02:45:22,232 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 138.9 MB. Free memory was 104.9 MB in the beginning and 104.7 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2019-10-03 02:45:22,234 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1062.73 ms. Allocated memory was 138.9 MB in the beginning and 200.8 MB in the end (delta: 61.9 MB). Free memory was 83.0 MB in the beginning and 140.6 MB in the end (delta: -57.6 MB). Peak memory consumption was 29.9 MB. Max. memory is 7.1 GB. [2019-10-03 02:45:22,235 INFO L168 Benchmark]: Boogie Preprocessor took 182.06 ms. Allocated memory is still 200.8 MB. Free memory was 140.6 MB in the beginning and 131.1 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB. [2019-10-03 02:45:22,243 INFO L168 Benchmark]: RCFGBuilder took 2462.99 ms. Allocated memory was 200.8 MB in the beginning and 269.5 MB in the end (delta: 68.7 MB). Free memory was 131.1 MB in the beginning and 160.1 MB in the end (delta: -29.0 MB). Peak memory consumption was 93.3 MB. Max. memory is 7.1 GB. [2019-10-03 02:45:22,244 INFO L168 Benchmark]: TraceAbstraction took 5123.36 ms. Allocated memory was 269.5 MB in the beginning and 416.8 MB in the end (delta: 147.3 MB). Free memory was 160.1 MB in the beginning and 250.9 MB in the end (delta: -90.8 MB). Peak memory consumption was 56.5 MB. Max. memory is 7.1 GB. [2019-10-03 02:45:22,258 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 138.9 MB. Free memory was 104.9 MB in the beginning and 104.7 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1062.73 ms. Allocated memory was 138.9 MB in the beginning and 200.8 MB in the end (delta: 61.9 MB). Free memory was 83.0 MB in the beginning and 140.6 MB in the end (delta: -57.6 MB). Peak memory consumption was 29.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 182.06 ms. Allocated memory is still 200.8 MB. Free memory was 140.6 MB in the beginning and 131.1 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 2462.99 ms. Allocated memory was 200.8 MB in the beginning and 269.5 MB in the end (delta: 68.7 MB). Free memory was 131.1 MB in the beginning and 160.1 MB in the end (delta: -29.0 MB). Peak memory consumption was 93.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 5123.36 ms. Allocated memory was 269.5 MB in the beginning and 416.8 MB in the end (delta: 147.3 MB). Free memory was 160.1 MB in the beginning and 250.9 MB in the end (delta: -90.8 MB). Peak memory consumption was 56.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 947]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 71 procedures, 890 locations, 1 error locations. SAFE Result, 5.0s OverallTime, 11 OverallIterations, 2 TraceHistogramMax, 1.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 9095 SDtfs, 375 SDslu, 35150 SDs, 0 SdLazy, 470 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 191 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=757occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.2s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 1.0 AbsIntWeakeningRatio, 2.2295081967213113 AbsIntAvgWeakeningVarsNumRemoved, 0.0 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 11 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 1305 NumberOfCodeBlocks, 1305 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 1294 ConstructedInterpolants, 0 QuantifiedInterpolants, 183398 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 10 PerfectInterpolantSequences, 31/33 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...