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_product18.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-673a906-m [2019-10-03 02:45:24,717 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-03 02:45:24,719 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-03 02:45:24,731 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-03 02:45:24,731 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-03 02:45:24,732 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-03 02:45:24,733 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-03 02:45:24,735 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-03 02:45:24,737 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-03 02:45:24,738 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-03 02:45:24,739 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-03 02:45:24,740 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-03 02:45:24,740 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-03 02:45:24,741 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-03 02:45:24,742 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-03 02:45:24,743 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-03 02:45:24,744 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-03 02:45:24,745 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-03 02:45:24,747 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-03 02:45:24,749 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-03 02:45:24,750 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-03 02:45:24,751 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-03 02:45:24,753 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-03 02:45:24,754 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-03 02:45:24,756 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-03 02:45:24,756 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-03 02:45:24,756 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-03 02:45:24,757 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-03 02:45:24,758 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-03 02:45:24,759 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-03 02:45:24,759 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-03 02:45:24,760 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-03 02:45:24,761 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-03 02:45:24,761 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-03 02:45:24,762 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-03 02:45:24,763 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-03 02:45:24,763 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-03 02:45:24,763 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-03 02:45:24,764 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-03 02:45:24,765 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-03 02:45:24,765 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-03 02:45:24,766 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 02:45:24,781 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-03 02:45:24,782 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-03 02:45:24,782 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-10-03 02:45:24,782 INFO L138 SettingsManager]: * Log level for plugins=info [2019-10-03 02:45:24,783 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-03 02:45:24,783 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-03 02:45:24,784 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-10-03 02:45:24,784 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-10-03 02:45:24,784 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-03 02:45:24,784 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-10-03 02:45:24,785 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-03 02:45:24,785 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-03 02:45:24,785 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-03 02:45:24,786 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-03 02:45:24,786 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-03 02:45:24,786 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-03 02:45:24,786 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-03 02:45:24,786 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-03 02:45:24,787 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-03 02:45:24,787 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-03 02:45:24,787 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-03 02:45:24,787 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-10-03 02:45:24,787 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-03 02:45:24,788 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-03 02:45:24,788 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-03 02:45:24,788 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-03 02:45:24,788 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-03 02:45:24,788 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-03 02:45:24,789 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-03 02:45:24,789 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-10-03 02:45:24,817 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-03 02:45:24,830 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-03 02:45:24,834 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-03 02:45:24,836 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-03 02:45:24,836 INFO L275 PluginConnector]: CDTParser initialized [2019-10-03 02:45:24,837 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec3_product18.cil.c [2019-10-03 02:45:24,900 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5dba3c71a/a7b1cbfa07a14b8da70a8ab40065e784/FLAG286e34351 [2019-10-03 02:45:25,499 INFO L306 CDTParser]: Found 1 translation units. [2019-10-03 02:45:25,500 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec3_product18.cil.c [2019-10-03 02:45:25,520 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5dba3c71a/a7b1cbfa07a14b8da70a8ab40065e784/FLAG286e34351 [2019-10-03 02:45:25,728 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5dba3c71a/a7b1cbfa07a14b8da70a8ab40065e784 [2019-10-03 02:45:25,738 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-03 02:45:25,739 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-03 02:45:25,742 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-03 02:45:25,742 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-03 02:45:25,747 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-03 02:45:25,748 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 02:45:25" (1/1) ... [2019-10-03 02:45:25,751 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 02:45:25, skipping insertion in model container [2019-10-03 02:45:25,751 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 02:45:25" (1/1) ... [2019-10-03 02:45:25,759 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-03 02:45:25,832 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-03 02:45:26,512 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 02:45:26,536 INFO L188 MainTranslator]: Completed pre-run [2019-10-03 02:45:26,697 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 02:45:26,762 INFO L192 MainTranslator]: Completed translation [2019-10-03 02:45:26,762 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:45:26 WrapperNode [2019-10-03 02:45:26,763 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-03 02:45:26,763 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-03 02:45:26,764 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-03 02:45:26,764 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-03 02:45:26,775 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:45:26" (1/1) ... [2019-10-03 02:45:26,775 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:45:26" (1/1) ... [2019-10-03 02:45:26,809 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:45:26" (1/1) ... [2019-10-03 02:45:26,809 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:45:26" (1/1) ... [2019-10-03 02:45:26,868 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:45:26" (1/1) ... [2019-10-03 02:45:26,903 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:45:26" (1/1) ... [2019-10-03 02:45:26,921 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:45:26" (1/1) ... [2019-10-03 02:45:26,960 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-03 02:45:26,961 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-03 02:45:26,961 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-03 02:45:26,961 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-03 02:45:26,962 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:45:26" (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 02:45:27,037 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-03 02:45:27,037 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-03 02:45:27,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-03 02:45:27,038 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-03 02:45:27,038 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-03 02:45:27,038 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-03 02:45:27,038 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-03 02:45:27,039 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-03 02:45:27,040 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-03 02:45:27,040 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-03 02:45:27,040 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-03 02:45:27,041 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-03 02:45:27,041 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-03 02:45:27,042 INFO L138 BoogieDeclarations]: Found implementation of procedure initFloors [2019-10-03 02:45:27,042 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2019-10-03 02:45:27,043 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2019-10-03 02:45:27,043 INFO L138 BoogieDeclarations]: Found implementation of procedure callOnFloor [2019-10-03 02:45:27,044 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2019-10-03 02:45:27,044 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2019-10-03 02:45:27,044 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2019-10-03 02:45:27,045 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2019-10-03 02:45:27,045 INFO L138 BoogieDeclarations]: Found implementation of procedure get_nondetMinMax07 [2019-10-03 02:45:27,045 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2019-10-03 02:45:27,045 INFO L138 BoogieDeclarations]: Found implementation of procedure aliceCall [2019-10-03 02:45:27,045 INFO L138 BoogieDeclarations]: Found implementation of procedure angelinaCall [2019-10-03 02:45:27,046 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckCall [2019-10-03 02:45:27,046 INFO L138 BoogieDeclarations]: Found implementation of procedure monicaCall [2019-10-03 02:45:27,046 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2019-10-03 02:45:27,046 INFO L138 BoogieDeclarations]: Found implementation of procedure threeTS [2019-10-03 02:45:27,047 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-03 02:45:27,047 INFO L138 BoogieDeclarations]: Found implementation of procedure randomSequenceOfActions [2019-10-03 02:45:27,047 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest_Simple [2019-10-03 02:45:27,047 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification1 [2019-10-03 02:45:27,047 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-03 02:45:27,048 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification3 [2019-10-03 02:45:27,048 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-03 02:45:27,048 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-03 02:45:27,048 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-03 02:45:27,048 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-03 02:45:27,048 INFO L138 BoogieDeclarations]: Found implementation of procedure initTopDown [2019-10-03 02:45:27,048 INFO L138 BoogieDeclarations]: Found implementation of procedure initBottomUp [2019-10-03 02:45:27,049 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2019-10-03 02:45:27,049 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator__wrappee__base [2019-10-03 02:45:27,049 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2019-10-03 02:45:27,049 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator__wrappee__base [2019-10-03 02:45:27,049 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2019-10-03 02:45:27,050 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2019-10-03 02:45:27,050 INFO L138 BoogieDeclarations]: Found implementation of procedure resetFloorButton [2019-10-03 02:45:27,050 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2019-10-03 02:45:27,050 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2019-10-03 02:45:27,050 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2019-10-03 02:45:27,050 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentHeading [2019-10-03 02:45:27,051 INFO L138 BoogieDeclarations]: Found implementation of procedure isEmpty [2019-10-03 02:45:27,051 INFO L138 BoogieDeclarations]: Found implementation of procedure anyStopRequested [2019-10-03 02:45:27,051 INFO L138 BoogieDeclarations]: Found implementation of procedure isIdle [2019-10-03 02:45:27,051 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2019-10-03 02:45:27,051 INFO L138 BoogieDeclarations]: Found implementation of procedure isAnyLiftButtonPressed [2019-10-03 02:45:27,052 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2019-10-03 02:45:27,052 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor [2019-10-03 02:45:27,052 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2019-10-03 02:45:27,052 INFO L138 BoogieDeclarations]: Found implementation of procedure processWaitingOnFloor [2019-10-03 02:45:27,052 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift__wrappee__weight [2019-10-03 02:45:27,053 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-03 02:45:27,053 INFO L138 BoogieDeclarations]: Found implementation of procedure printState__wrappee__weight [2019-10-03 02:45:27,053 INFO L138 BoogieDeclarations]: Found implementation of procedure printState [2019-10-03 02:45:27,054 INFO L138 BoogieDeclarations]: Found implementation of procedure existInLiftCallsInDirection [2019-10-03 02:45:27,054 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2019-10-03 02:45:27,054 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2019-10-03 02:45:27,054 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2019-10-03 02:45:27,054 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2019-10-03 02:45:27,054 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__2 [2019-10-03 02:45:27,055 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-03 02:45:27,055 INFO L138 BoogieDeclarations]: Found implementation of procedure spec1 [2019-10-03 02:45:27,056 INFO L138 BoogieDeclarations]: Found implementation of procedure spec14 [2019-10-03 02:45:27,056 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-03 02:45:27,056 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-03 02:45:27,056 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-03 02:45:27,057 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-03 02:45:27,057 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-03 02:45:27,058 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-03 02:45:27,058 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-03 02:45:27,058 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-03 02:45:27,058 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-03 02:45:27,058 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-03 02:45:27,059 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-03 02:45:27,060 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-03 02:45:27,061 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-03 02:45:27,061 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-03 02:45:27,061 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-03 02:45:27,061 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-03 02:45:27,061 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-03 02:45:27,062 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-03 02:45:27,062 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-03 02:45:27,062 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-03 02:45:27,062 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-03 02:45:27,062 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-03 02:45:27,062 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-03 02:45:27,063 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2019-10-03 02:45:27,063 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2019-10-03 02:45:27,063 INFO L130 BoogieDeclarations]: Found specification of procedure callOnFloor [2019-10-03 02:45:27,063 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2019-10-03 02:45:27,063 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2019-10-03 02:45:27,063 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2019-10-03 02:45:27,064 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2019-10-03 02:45:27,064 INFO L130 BoogieDeclarations]: Found specification of procedure initFloors [2019-10-03 02:45:27,064 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-03 02:45:27,064 INFO L130 BoogieDeclarations]: Found specification of procedure get_nondetMinMax07 [2019-10-03 02:45:27,064 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2019-10-03 02:45:27,065 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2019-10-03 02:45:27,065 INFO L130 BoogieDeclarations]: Found specification of procedure aliceCall [2019-10-03 02:45:27,065 INFO L130 BoogieDeclarations]: Found specification of procedure angelinaCall [2019-10-03 02:45:27,065 INFO L130 BoogieDeclarations]: Found specification of procedure chuckCall [2019-10-03 02:45:27,065 INFO L130 BoogieDeclarations]: Found specification of procedure monicaCall [2019-10-03 02:45:27,065 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2019-10-03 02:45:27,066 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-03 02:45:27,066 INFO L130 BoogieDeclarations]: Found specification of procedure threeTS [2019-10-03 02:45:27,067 INFO L130 BoogieDeclarations]: Found specification of procedure isIdle [2019-10-03 02:45:27,067 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2019-10-03 02:45:27,068 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-03 02:45:27,068 INFO L130 BoogieDeclarations]: Found specification of procedure initTopDown [2019-10-03 02:45:27,068 INFO L130 BoogieDeclarations]: Found specification of procedure initBottomUp [2019-10-03 02:45:27,069 INFO L130 BoogieDeclarations]: Found specification of procedure randomSequenceOfActions [2019-10-03 02:45:27,069 INFO L130 BoogieDeclarations]: Found specification of procedure runTest_Simple [2019-10-03 02:45:27,070 INFO L130 BoogieDeclarations]: Found specification of procedure Specification1 [2019-10-03 02:45:27,070 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-03 02:45:27,070 INFO L130 BoogieDeclarations]: Found specification of procedure Specification3 [2019-10-03 02:45:27,071 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-03 02:45:27,071 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-03 02:45:27,071 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-03 02:45:27,071 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-03 02:45:27,072 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-03 02:45:27,072 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-03 02:45:27,072 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2019-10-03 02:45:27,072 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2019-10-03 02:45:27,072 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2019-10-03 02:45:27,073 INFO L130 BoogieDeclarations]: Found specification of procedure printState [2019-10-03 02:45:27,073 INFO L130 BoogieDeclarations]: Found specification of procedure isEmpty [2019-10-03 02:45:27,073 INFO L130 BoogieDeclarations]: Found specification of procedure isAnyLiftButtonPressed [2019-10-03 02:45:27,074 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2019-10-03 02:45:27,077 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2019-10-03 02:45:27,078 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2019-10-03 02:45:27,078 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator__wrappee__base [2019-10-03 02:45:27,078 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator__wrappee__base [2019-10-03 02:45:27,083 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2019-10-03 02:45:27,083 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2019-10-03 02:45:27,083 INFO L130 BoogieDeclarations]: Found specification of procedure resetFloorButton [2019-10-03 02:45:27,083 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentHeading [2019-10-03 02:45:27,084 INFO L130 BoogieDeclarations]: Found specification of procedure anyStopRequested [2019-10-03 02:45:27,084 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2019-10-03 02:45:27,084 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2019-10-03 02:45:27,084 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor [2019-10-03 02:45:27,084 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2019-10-03 02:45:27,084 INFO L130 BoogieDeclarations]: Found specification of procedure processWaitingOnFloor [2019-10-03 02:45:27,084 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift__wrappee__weight [2019-10-03 02:45:27,085 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2019-10-03 02:45:27,085 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__2 [2019-10-03 02:45:27,085 INFO L130 BoogieDeclarations]: Found specification of procedure printState__wrappee__weight [2019-10-03 02:45:27,085 INFO L130 BoogieDeclarations]: Found specification of procedure existInLiftCallsInDirection [2019-10-03 02:45:27,085 INFO L130 BoogieDeclarations]: Found specification of procedure spec1 [2019-10-03 02:45:27,085 INFO L130 BoogieDeclarations]: Found specification of procedure spec14 [2019-10-03 02:45:27,085 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-03 02:45:27,086 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-03 02:45:27,086 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-03 02:45:29,295 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-03 02:45:29,296 INFO L283 CfgBuilder]: Removed 10 assume(true) statements. [2019-10-03 02:45:29,298 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 02:45:29 BoogieIcfgContainer [2019-10-03 02:45:29,298 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-03 02:45:29,299 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-03 02:45:29,299 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-03 02:45:29,303 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-03 02:45:29,303 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.10 02:45:25" (1/3) ... [2019-10-03 02:45:29,305 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55e605ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 02:45:29, skipping insertion in model container [2019-10-03 02:45:29,305 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:45:26" (2/3) ... [2019-10-03 02:45:29,305 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55e605ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 02:45:29, skipping insertion in model container [2019-10-03 02:45:29,306 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 02:45:29" (3/3) ... [2019-10-03 02:45:29,307 INFO L109 eAbstractionObserver]: Analyzing ICFG elevator_spec3_product18.cil.c [2019-10-03 02:45:29,318 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-03 02:45:29,333 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-03 02:45:29,350 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-03 02:45:29,387 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-10-03 02:45:29,387 INFO L378 AbstractCegarLoop]: Hoare is false [2019-10-03 02:45:29,387 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-03 02:45:29,387 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-03 02:45:29,387 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-03 02:45:29,388 INFO L382 AbstractCegarLoop]: Difference is false [2019-10-03 02:45:29,388 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-03 02:45:29,388 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-03 02:45:29,429 INFO L276 IsEmpty]: Start isEmpty. Operand 781 states. [2019-10-03 02:45:29,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2019-10-03 02:45:29,466 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:45:29,467 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] [2019-10-03 02:45:29,470 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:45:29,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:45:29,476 INFO L82 PathProgramCache]: Analyzing trace with hash 1366421017, now seen corresponding path program 1 times [2019-10-03 02:45:29,479 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:45:29,533 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:45:29,533 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:45:29,533 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:45:29,534 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:45:29,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:45:30,192 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 02:45:30,195 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:45:30,195 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-03 02:45:30,195 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:45:30,203 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-03 02:45:30,218 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-03 02:45:30,219 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-03 02:45:30,222 INFO L87 Difference]: Start difference. First operand 781 states. Second operand 7 states. [2019-10-03 02:45:30,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:45:30,543 INFO L93 Difference]: Finished difference Result 633 states and 1008 transitions. [2019-10-03 02:45:30,543 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-03 02:45:30,545 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 93 [2019-10-03 02:45:30,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:45:30,573 INFO L225 Difference]: With dead ends: 633 [2019-10-03 02:45:30,573 INFO L226 Difference]: Without dead ends: 622 [2019-10-03 02:45:30,575 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 02:45:30,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 622 states. [2019-10-03 02:45:30,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 622 to 620. [2019-10-03 02:45:30,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 620 states. [2019-10-03 02:45:30,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 620 states to 620 states and 991 transitions. [2019-10-03 02:45:30,706 INFO L78 Accepts]: Start accepts. Automaton has 620 states and 991 transitions. Word has length 93 [2019-10-03 02:45:30,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:45:30,706 INFO L475 AbstractCegarLoop]: Abstraction has 620 states and 991 transitions. [2019-10-03 02:45:30,706 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-03 02:45:30,707 INFO L276 IsEmpty]: Start isEmpty. Operand 620 states and 991 transitions. [2019-10-03 02:45:30,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2019-10-03 02:45:30,718 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:45:30,718 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] [2019-10-03 02:45:30,719 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:45:30,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:45:30,720 INFO L82 PathProgramCache]: Analyzing trace with hash 1643390832, now seen corresponding path program 1 times [2019-10-03 02:45:30,721 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:45:30,725 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:45:30,725 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:45:30,725 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:45:30,725 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:45:30,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:45:30,950 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 02:45:30,950 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:45:30,951 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-03 02:45:30,951 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:45:30,958 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-03 02:45:30,959 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-03 02:45:30,959 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-03 02:45:30,959 INFO L87 Difference]: Start difference. First operand 620 states and 991 transitions. Second operand 4 states. [2019-10-03 02:45:31,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:45:31,041 INFO L93 Difference]: Finished difference Result 618 states and 986 transitions. [2019-10-03 02:45:31,042 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-03 02:45:31,042 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 94 [2019-10-03 02:45:31,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:45:31,052 INFO L225 Difference]: With dead ends: 618 [2019-10-03 02:45:31,052 INFO L226 Difference]: Without dead ends: 602 [2019-10-03 02:45:31,054 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 02:45:31,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 602 states. [2019-10-03 02:45:31,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 602 to 602. [2019-10-03 02:45:31,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 602 states. [2019-10-03 02:45:31,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 602 states to 602 states and 958 transitions. [2019-10-03 02:45:31,095 INFO L78 Accepts]: Start accepts. Automaton has 602 states and 958 transitions. Word has length 94 [2019-10-03 02:45:31,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:45:31,096 INFO L475 AbstractCegarLoop]: Abstraction has 602 states and 958 transitions. [2019-10-03 02:45:31,096 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-03 02:45:31,096 INFO L276 IsEmpty]: Start isEmpty. Operand 602 states and 958 transitions. [2019-10-03 02:45:31,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2019-10-03 02:45:31,100 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:45:31,100 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] [2019-10-03 02:45:31,101 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:45:31,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:45:31,101 INFO L82 PathProgramCache]: Analyzing trace with hash 1305237044, now seen corresponding path program 1 times [2019-10-03 02:45:31,101 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:45:31,107 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:45:31,108 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:45:31,108 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:45:31,108 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:45:31,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:45:31,322 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 02:45:31,323 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:45:31,323 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-03 02:45:31,323 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:45:31,326 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-03 02:45:31,326 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-03 02:45:31,327 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-03 02:45:31,327 INFO L87 Difference]: Start difference. First operand 602 states and 958 transitions. Second operand 7 states. [2019-10-03 02:45:31,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:45:31,430 INFO L93 Difference]: Finished difference Result 605 states and 961 transitions. [2019-10-03 02:45:31,430 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-03 02:45:31,431 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 94 [2019-10-03 02:45:31,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:45:31,437 INFO L225 Difference]: With dead ends: 605 [2019-10-03 02:45:31,438 INFO L226 Difference]: Without dead ends: 596 [2019-10-03 02:45:31,439 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 02:45:31,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 596 states. [2019-10-03 02:45:31,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 596 to 596. [2019-10-03 02:45:31,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 596 states. [2019-10-03 02:45:31,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 596 states to 596 states and 945 transitions. [2019-10-03 02:45:31,472 INFO L78 Accepts]: Start accepts. Automaton has 596 states and 945 transitions. Word has length 94 [2019-10-03 02:45:31,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:45:31,473 INFO L475 AbstractCegarLoop]: Abstraction has 596 states and 945 transitions. [2019-10-03 02:45:31,473 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-03 02:45:31,473 INFO L276 IsEmpty]: Start isEmpty. Operand 596 states and 945 transitions. [2019-10-03 02:45:31,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2019-10-03 02:45:31,475 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:45:31,475 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] [2019-10-03 02:45:31,475 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:45:31,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:45:31,476 INFO L82 PathProgramCache]: Analyzing trace with hash 1548689565, now seen corresponding path program 1 times [2019-10-03 02:45:31,476 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:45:31,479 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:45:31,479 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:45:31,479 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:45:31,480 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:45:31,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:45:31,691 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 02:45:31,692 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:45:31,692 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-03 02:45:31,692 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:45:31,692 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-03 02:45:31,693 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-03 02:45:31,694 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-03 02:45:31,694 INFO L87 Difference]: Start difference. First operand 596 states and 945 transitions. Second operand 7 states. [2019-10-03 02:45:31,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:45:31,779 INFO L93 Difference]: Finished difference Result 599 states and 948 transitions. [2019-10-03 02:45:31,779 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-03 02:45:31,779 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 95 [2019-10-03 02:45:31,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:45:31,785 INFO L225 Difference]: With dead ends: 599 [2019-10-03 02:45:31,786 INFO L226 Difference]: Without dead ends: 590 [2019-10-03 02:45:31,786 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 02:45:31,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 590 states. [2019-10-03 02:45:31,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 590 to 590. [2019-10-03 02:45:31,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 590 states. [2019-10-03 02:45:31,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 590 states to 590 states and 932 transitions. [2019-10-03 02:45:31,821 INFO L78 Accepts]: Start accepts. Automaton has 590 states and 932 transitions. Word has length 95 [2019-10-03 02:45:31,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:45:31,822 INFO L475 AbstractCegarLoop]: Abstraction has 590 states and 932 transitions. [2019-10-03 02:45:31,822 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-03 02:45:31,822 INFO L276 IsEmpty]: Start isEmpty. Operand 590 states and 932 transitions. [2019-10-03 02:45:31,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2019-10-03 02:45:31,827 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:45:31,827 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] [2019-10-03 02:45:31,827 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:45:31,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:45:31,828 INFO L82 PathProgramCache]: Analyzing trace with hash -1649028488, now seen corresponding path program 1 times [2019-10-03 02:45:31,828 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:45:31,833 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:45:31,834 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:45:31,834 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:45:31,834 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:45:31,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:45:32,039 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 02:45:32,040 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:45:32,040 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-03 02:45:32,040 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:45:32,042 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-03 02:45:32,042 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-03 02:45:32,043 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-03 02:45:32,043 INFO L87 Difference]: Start difference. First operand 590 states and 932 transitions. Second operand 7 states. [2019-10-03 02:45:32,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:45:32,128 INFO L93 Difference]: Finished difference Result 593 states and 935 transitions. [2019-10-03 02:45:32,129 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-03 02:45:32,129 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 96 [2019-10-03 02:45:32,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:45:32,136 INFO L225 Difference]: With dead ends: 593 [2019-10-03 02:45:32,136 INFO L226 Difference]: Without dead ends: 584 [2019-10-03 02:45:32,137 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 02:45:32,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 584 states. [2019-10-03 02:45:32,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 584 to 584. [2019-10-03 02:45:32,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 584 states. [2019-10-03 02:45:32,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 584 states to 584 states and 919 transitions. [2019-10-03 02:45:32,160 INFO L78 Accepts]: Start accepts. Automaton has 584 states and 919 transitions. Word has length 96 [2019-10-03 02:45:32,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:45:32,161 INFO L475 AbstractCegarLoop]: Abstraction has 584 states and 919 transitions. [2019-10-03 02:45:32,161 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-03 02:45:32,161 INFO L276 IsEmpty]: Start isEmpty. Operand 584 states and 919 transitions. [2019-10-03 02:45:32,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2019-10-03 02:45:32,163 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:45:32,163 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] [2019-10-03 02:45:32,163 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:45:32,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:45:32,164 INFO L82 PathProgramCache]: Analyzing trace with hash -260086663, now seen corresponding path program 1 times [2019-10-03 02:45:32,164 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:45:32,169 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:45:32,170 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:45:32,170 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:45:32,170 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:45:32,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:45:32,341 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 02:45:32,341 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:45:32,341 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-03 02:45:32,342 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:45:32,342 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-03 02:45:32,342 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-03 02:45:32,343 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-03 02:45:32,343 INFO L87 Difference]: Start difference. First operand 584 states and 919 transitions. Second operand 7 states. [2019-10-03 02:45:32,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:45:32,420 INFO L93 Difference]: Finished difference Result 587 states and 922 transitions. [2019-10-03 02:45:32,421 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-03 02:45:32,421 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 96 [2019-10-03 02:45:32,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:45:32,427 INFO L225 Difference]: With dead ends: 587 [2019-10-03 02:45:32,427 INFO L226 Difference]: Without dead ends: 584 [2019-10-03 02:45:32,428 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 02:45:32,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 584 states. [2019-10-03 02:45:32,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 584 to 584. [2019-10-03 02:45:32,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 584 states. [2019-10-03 02:45:32,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 584 states to 584 states and 918 transitions. [2019-10-03 02:45:32,449 INFO L78 Accepts]: Start accepts. Automaton has 584 states and 918 transitions. Word has length 96 [2019-10-03 02:45:32,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:45:32,450 INFO L475 AbstractCegarLoop]: Abstraction has 584 states and 918 transitions. [2019-10-03 02:45:32,450 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-03 02:45:32,450 INFO L276 IsEmpty]: Start isEmpty. Operand 584 states and 918 transitions. [2019-10-03 02:45:32,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2019-10-03 02:45:32,452 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:45:32,452 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] [2019-10-03 02:45:32,452 INFO L418 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:45:32,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:45:32,453 INFO L82 PathProgramCache]: Analyzing trace with hash 146115361, now seen corresponding path program 1 times [2019-10-03 02:45:32,453 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:45:32,457 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:45:32,457 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:45:32,457 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:45:32,457 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:45:32,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:45:32,671 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 02:45:32,672 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:45:32,672 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-03 02:45:32,672 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:45:32,673 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-03 02:45:32,673 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-03 02:45:32,673 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-03 02:45:32,673 INFO L87 Difference]: Start difference. First operand 584 states and 918 transitions. Second operand 5 states. [2019-10-03 02:45:32,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:45:32,739 INFO L93 Difference]: Finished difference Result 586 states and 919 transitions. [2019-10-03 02:45:32,739 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-03 02:45:32,740 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 97 [2019-10-03 02:45:32,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:45:32,744 INFO L225 Difference]: With dead ends: 586 [2019-10-03 02:45:32,745 INFO L226 Difference]: Without dead ends: 584 [2019-10-03 02:45:32,745 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 02:45:32,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 584 states. [2019-10-03 02:45:32,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 584 to 584. [2019-10-03 02:45:32,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 584 states. [2019-10-03 02:45:32,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 584 states to 584 states and 917 transitions. [2019-10-03 02:45:32,766 INFO L78 Accepts]: Start accepts. Automaton has 584 states and 917 transitions. Word has length 97 [2019-10-03 02:45:32,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:45:32,767 INFO L475 AbstractCegarLoop]: Abstraction has 584 states and 917 transitions. [2019-10-03 02:45:32,767 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-03 02:45:32,767 INFO L276 IsEmpty]: Start isEmpty. Operand 584 states and 917 transitions. [2019-10-03 02:45:32,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2019-10-03 02:45:32,769 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:45:32,769 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] [2019-10-03 02:45:32,769 INFO L418 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:45:32,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:45:32,770 INFO L82 PathProgramCache]: Analyzing trace with hash -1759564154, now seen corresponding path program 1 times [2019-10-03 02:45:32,770 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:45:32,773 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:45:32,773 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:45:32,773 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:45:32,774 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:45:32,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:45:32,908 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 02:45:32,908 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:45:32,908 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-03 02:45:32,909 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:45:32,910 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-03 02:45:32,910 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-03 02:45:32,911 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-03 02:45:32,911 INFO L87 Difference]: Start difference. First operand 584 states and 917 transitions. Second operand 5 states. [2019-10-03 02:45:32,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:45:32,991 INFO L93 Difference]: Finished difference Result 586 states and 918 transitions. [2019-10-03 02:45:32,992 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-03 02:45:32,992 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 98 [2019-10-03 02:45:32,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:45:33,001 INFO L225 Difference]: With dead ends: 586 [2019-10-03 02:45:33,002 INFO L226 Difference]: Without dead ends: 584 [2019-10-03 02:45:33,002 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 02:45:33,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 584 states. [2019-10-03 02:45:33,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 584 to 584. [2019-10-03 02:45:33,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 584 states. [2019-10-03 02:45:33,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 584 states to 584 states and 916 transitions. [2019-10-03 02:45:33,032 INFO L78 Accepts]: Start accepts. Automaton has 584 states and 916 transitions. Word has length 98 [2019-10-03 02:45:33,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:45:33,033 INFO L475 AbstractCegarLoop]: Abstraction has 584 states and 916 transitions. [2019-10-03 02:45:33,033 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-03 02:45:33,033 INFO L276 IsEmpty]: Start isEmpty. Operand 584 states and 916 transitions. [2019-10-03 02:45:33,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2019-10-03 02:45:33,037 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:45:33,037 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] [2019-10-03 02:45:33,038 INFO L418 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:45:33,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:45:33,038 INFO L82 PathProgramCache]: Analyzing trace with hash -153149156, now seen corresponding path program 1 times [2019-10-03 02:45:33,038 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:45:33,043 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:45:33,044 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:45:33,044 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:45:33,044 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:45:33,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:45:33,204 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 02:45:33,204 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:45:33,204 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-03 02:45:33,204 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:45:33,205 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-03 02:45:33,205 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-03 02:45:33,205 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-03 02:45:33,205 INFO L87 Difference]: Start difference. First operand 584 states and 916 transitions. Second operand 5 states. [2019-10-03 02:45:33,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:45:33,261 INFO L93 Difference]: Finished difference Result 586 states and 917 transitions. [2019-10-03 02:45:33,261 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-03 02:45:33,261 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 99 [2019-10-03 02:45:33,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:45:33,267 INFO L225 Difference]: With dead ends: 586 [2019-10-03 02:45:33,267 INFO L226 Difference]: Without dead ends: 584 [2019-10-03 02:45:33,268 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 02:45:33,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 584 states. [2019-10-03 02:45:33,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 584 to 584. [2019-10-03 02:45:33,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 584 states. [2019-10-03 02:45:33,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 584 states to 584 states and 915 transitions. [2019-10-03 02:45:33,294 INFO L78 Accepts]: Start accepts. Automaton has 584 states and 915 transitions. Word has length 99 [2019-10-03 02:45:33,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:45:33,294 INFO L475 AbstractCegarLoop]: Abstraction has 584 states and 915 transitions. [2019-10-03 02:45:33,294 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-03 02:45:33,294 INFO L276 IsEmpty]: Start isEmpty. Operand 584 states and 915 transitions. [2019-10-03 02:45:33,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2019-10-03 02:45:33,297 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:45:33,297 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] [2019-10-03 02:45:33,297 INFO L418 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:45:33,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:45:33,298 INFO L82 PathProgramCache]: Analyzing trace with hash -1340953951, now seen corresponding path program 1 times [2019-10-03 02:45:33,298 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:45:33,302 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:45:33,302 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:45:33,302 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:45:33,302 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:45:33,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:45:33,432 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 02:45:33,432 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:45:33,432 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-03 02:45:33,432 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:45:33,433 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-03 02:45:33,433 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-03 02:45:33,433 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-03 02:45:33,434 INFO L87 Difference]: Start difference. First operand 584 states and 915 transitions. Second operand 5 states. [2019-10-03 02:45:33,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:45:33,483 INFO L93 Difference]: Finished difference Result 586 states and 916 transitions. [2019-10-03 02:45:33,484 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-03 02:45:33,484 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 100 [2019-10-03 02:45:33,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:45:33,488 INFO L225 Difference]: With dead ends: 586 [2019-10-03 02:45:33,489 INFO L226 Difference]: Without dead ends: 584 [2019-10-03 02:45:33,489 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 02:45:33,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 584 states. [2019-10-03 02:45:33,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 584 to 584. [2019-10-03 02:45:33,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 584 states. [2019-10-03 02:45:33,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 584 states to 584 states and 914 transitions. [2019-10-03 02:45:33,554 INFO L78 Accepts]: Start accepts. Automaton has 584 states and 914 transitions. Word has length 100 [2019-10-03 02:45:33,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:45:33,554 INFO L475 AbstractCegarLoop]: Abstraction has 584 states and 914 transitions. [2019-10-03 02:45:33,554 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-03 02:45:33,555 INFO L276 IsEmpty]: Start isEmpty. Operand 584 states and 914 transitions. [2019-10-03 02:45:33,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2019-10-03 02:45:33,556 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:45:33,556 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] [2019-10-03 02:45:33,557 INFO L418 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:45:33,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:45:33,557 INFO L82 PathProgramCache]: Analyzing trace with hash -1311064363, now seen corresponding path program 1 times [2019-10-03 02:45:33,557 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:45:33,560 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:45:33,560 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:45:33,560 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:45:33,561 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:45:33,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:45:33,725 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 02:45:33,725 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:45:33,726 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-03 02:45:33,726 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:45:33,726 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-03 02:45:33,726 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-03 02:45:33,727 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-10-03 02:45:33,727 INFO L87 Difference]: Start difference. First operand 584 states and 914 transitions. Second operand 9 states. [2019-10-03 02:45:33,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:45:33,845 INFO L93 Difference]: Finished difference Result 588 states and 917 transitions. [2019-10-03 02:45:33,846 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-03 02:45:33,846 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 101 [2019-10-03 02:45:33,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:45:33,851 INFO L225 Difference]: With dead ends: 588 [2019-10-03 02:45:33,851 INFO L226 Difference]: Without dead ends: 584 [2019-10-03 02:45:33,852 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2019-10-03 02:45:33,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 584 states. [2019-10-03 02:45:33,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 584 to 584. [2019-10-03 02:45:33,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 584 states. [2019-10-03 02:45:33,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 584 states to 584 states and 913 transitions. [2019-10-03 02:45:33,872 INFO L78 Accepts]: Start accepts. Automaton has 584 states and 913 transitions. Word has length 101 [2019-10-03 02:45:33,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:45:33,872 INFO L475 AbstractCegarLoop]: Abstraction has 584 states and 913 transitions. [2019-10-03 02:45:33,872 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-03 02:45:33,872 INFO L276 IsEmpty]: Start isEmpty. Operand 584 states and 913 transitions. [2019-10-03 02:45:33,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2019-10-03 02:45:33,874 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:45:33,874 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] [2019-10-03 02:45:33,875 INFO L418 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:45:33,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:45:33,875 INFO L82 PathProgramCache]: Analyzing trace with hash 1044740887, now seen corresponding path program 1 times [2019-10-03 02:45:33,875 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:45:33,878 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:45:33,878 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:45:33,878 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:45:33,878 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:45:33,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:45:34,086 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 02:45:34,086 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:45:34,086 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-03 02:45:34,087 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:45:34,087 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-03 02:45:34,087 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-03 02:45:34,088 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-10-03 02:45:34,088 INFO L87 Difference]: Start difference. First operand 584 states and 913 transitions. Second operand 8 states. [2019-10-03 02:45:37,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:45:37,500 INFO L93 Difference]: Finished difference Result 1573 states and 2459 transitions. [2019-10-03 02:45:37,501 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-10-03 02:45:37,501 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 101 [2019-10-03 02:45:37,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:45:37,513 INFO L225 Difference]: With dead ends: 1573 [2019-10-03 02:45:37,513 INFO L226 Difference]: Without dead ends: 1573 [2019-10-03 02:45:37,513 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2019-10-03 02:45:37,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1573 states. [2019-10-03 02:45:37,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1573 to 1561. [2019-10-03 02:45:37,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1561 states. [2019-10-03 02:45:37,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1561 states to 1561 states and 2446 transitions. [2019-10-03 02:45:37,574 INFO L78 Accepts]: Start accepts. Automaton has 1561 states and 2446 transitions. Word has length 101 [2019-10-03 02:45:37,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:45:37,575 INFO L475 AbstractCegarLoop]: Abstraction has 1561 states and 2446 transitions. [2019-10-03 02:45:37,575 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-03 02:45:37,575 INFO L276 IsEmpty]: Start isEmpty. Operand 1561 states and 2446 transitions. [2019-10-03 02:45:37,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2019-10-03 02:45:37,577 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:45:37,577 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] [2019-10-03 02:45:37,578 INFO L418 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:45:37,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:45:37,578 INFO L82 PathProgramCache]: Analyzing trace with hash 1821089815, now seen corresponding path program 1 times [2019-10-03 02:45:37,578 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:45:37,581 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:45:37,582 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:45:37,582 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:45:37,582 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:45:37,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:45:37,805 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 02:45:37,806 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-03 02:45:37,806 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-10-03 02:45:37,807 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 102 with the following transitions: [2019-10-03 02:45:37,809 INFO L207 CegarAbsIntRunner]: [55], [56], [62], [63], [140], [144], [147], [467], [846], [848], [850], [926], [929], [932], [935], [990], [991], [992], [997], [1064], [1065], [1066], [1068], [1111], [1147], [1183], [1219], [1255], [1258], [1261], [1294], [1295], [1296], [1303], [1308], [1313], [1318], [1323], [1326], [1330], [1559], [1562], [1584], [1853], [1854], [1942], [1945], [1947], [1950], [1974], [1976], [1978], [1981], [1994], [2008], [2022], [2036], [2050], [2124], [2302], [2507], [2508], [2509], [2510], [2511], [2512], [2513], [2514], [2515], [2581], [2582], [2583], [2584], [2585], [2586], [2587], [2588], [2589], [2617], [2618], [2619], [2620], [2625], [2643], [2644], [2649], [2650], [2651], [2657], [2745], [2746], [2747], [2753], [2754], [2755], [2756], [2781], [2782], [2783] [2019-10-03 02:45:37,872 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-10-03 02:45:37,872 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-03 02:45:38,004 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-10-03 02:45:38,006 INFO L272 AbstractInterpreter]: Visited 2 different actions 2 times. Never merged. Never widened. Performed 135 root evaluator evaluations with a maximum evaluation depth of 0. Performed 135 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 260 variables. [2019-10-03 02:45:38,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:45:38,011 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-10-03 02:45:38,097 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-10-03 02:45:38,097 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-10-03 02:45:38,108 INFO L420 sIntCurrentIteration]: We unified 100 AI predicates to 100 [2019-10-03 02:45:38,108 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-10-03 02:45:38,109 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-03 02:45:38,110 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [11] total 11 [2019-10-03 02:45:38,110 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:45:38,110 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-03 02:45:38,111 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-03 02:45:38,111 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-03 02:45:38,111 INFO L87 Difference]: Start difference. First operand 1561 states and 2446 transitions. Second operand 2 states. [2019-10-03 02:45:38,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:45:38,112 INFO L93 Difference]: Finished difference Result 2 states and 1 transitions. [2019-10-03 02:45:38,112 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-03 02:45:38,112 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 101 [2019-10-03 02:45:38,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:45:38,113 INFO L225 Difference]: With dead ends: 2 [2019-10-03 02:45:38,113 INFO L226 Difference]: Without dead ends: 0 [2019-10-03 02:45:38,113 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 100 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 02:45:38,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-03 02:45:38,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-03 02:45:38,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-03 02:45:38,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-03 02:45:38,114 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 101 [2019-10-03 02:45:38,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:45:38,114 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-03 02:45:38,114 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-03 02:45:38,115 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-03 02:45:38,115 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-03 02:45:38,121 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.10 02:45:38 BoogieIcfgContainer [2019-10-03 02:45:38,121 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-03 02:45:38,125 INFO L168 Benchmark]: Toolchain (without parser) took 12384.33 ms. Allocated memory was 140.0 MB in the beginning and 479.7 MB in the end (delta: 339.7 MB). Free memory was 84.8 MB in the beginning and 375.9 MB in the end (delta: -291.1 MB). Peak memory consumption was 48.7 MB. Max. memory is 7.1 GB. [2019-10-03 02:45:38,127 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 140.0 MB. Free memory was 106.0 MB in the beginning and 105.8 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-10-03 02:45:38,129 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1021.51 ms. Allocated memory was 140.0 MB in the beginning and 198.2 MB in the end (delta: 58.2 MB). Free memory was 84.6 MB in the beginning and 136.2 MB in the end (delta: -51.6 MB). Peak memory consumption was 30.5 MB. Max. memory is 7.1 GB. [2019-10-03 02:45:38,137 INFO L168 Benchmark]: Boogie Preprocessor took 196.77 ms. Allocated memory is still 198.2 MB. Free memory was 136.2 MB in the beginning and 126.2 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. [2019-10-03 02:45:38,138 INFO L168 Benchmark]: RCFGBuilder took 2337.59 ms. Allocated memory was 198.2 MB in the beginning and 265.8 MB in the end (delta: 67.6 MB). Free memory was 126.2 MB in the beginning and 142.6 MB in the end (delta: -16.4 MB). Peak memory consumption was 91.4 MB. Max. memory is 7.1 GB. [2019-10-03 02:45:38,140 INFO L168 Benchmark]: TraceAbstraction took 8822.43 ms. Allocated memory was 265.8 MB in the beginning and 479.7 MB in the end (delta: 213.9 MB). Free memory was 142.6 MB in the beginning and 375.9 MB in the end (delta: -233.2 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-10-03 02:45:38,154 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 140.0 MB. Free memory was 106.0 MB in the beginning and 105.8 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1021.51 ms. Allocated memory was 140.0 MB in the beginning and 198.2 MB in the end (delta: 58.2 MB). Free memory was 84.6 MB in the beginning and 136.2 MB in the end (delta: -51.6 MB). Peak memory consumption was 30.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 196.77 ms. Allocated memory is still 198.2 MB. Free memory was 136.2 MB in the beginning and 126.2 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 2337.59 ms. Allocated memory was 198.2 MB in the beginning and 265.8 MB in the end (delta: 67.6 MB). Free memory was 126.2 MB in the beginning and 142.6 MB in the end (delta: -16.4 MB). Peak memory consumption was 91.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 8822.43 ms. Allocated memory was 265.8 MB in the beginning and 479.7 MB in the end (delta: 213.9 MB). Free memory was 142.6 MB in the beginning and 375.9 MB in the end (delta: -233.2 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1471]: 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 74 procedures, 911 locations, 1 error locations. SAFE Result, 8.7s OverallTime, 13 OverallIterations, 2 TraceHistogramMax, 4.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 11825 SDtfs, 2126 SDslu, 47131 SDs, 0 SdLazy, 3012 SolverSat, 105 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 195 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1561occurred in iteration=12, 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, 2.31 AbsIntAvgWeakeningVarsNumRemoved, 0.0 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 13 MinimizatonAttempts, 14 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 1265 NumberOfCodeBlocks, 1265 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 1252 ConstructedInterpolants, 0 QuantifiedInterpolants, 158400 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 12 PerfectInterpolantSequences, 37/39 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...