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_product29.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-673a906-m [2019-10-03 02:46:06,007 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-03 02:46:06,009 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-03 02:46:06,023 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-03 02:46:06,023 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-03 02:46:06,025 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-03 02:46:06,026 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-03 02:46:06,028 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-03 02:46:06,030 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-03 02:46:06,031 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-03 02:46:06,032 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-03 02:46:06,033 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-03 02:46:06,034 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-03 02:46:06,035 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-03 02:46:06,036 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-03 02:46:06,037 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-03 02:46:06,038 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-03 02:46:06,039 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-03 02:46:06,041 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-03 02:46:06,043 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-03 02:46:06,045 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-03 02:46:06,046 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-03 02:46:06,047 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-03 02:46:06,048 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-03 02:46:06,050 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-03 02:46:06,050 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-03 02:46:06,051 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-03 02:46:06,052 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-03 02:46:06,052 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-03 02:46:06,053 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-03 02:46:06,054 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-03 02:46:06,054 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-03 02:46:06,055 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-03 02:46:06,056 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-03 02:46:06,057 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-03 02:46:06,057 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-03 02:46:06,058 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-03 02:46:06,058 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-03 02:46:06,059 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-03 02:46:06,060 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-03 02:46:06,060 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-03 02:46:06,061 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 02:46:06,076 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-03 02:46:06,076 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-03 02:46:06,077 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-10-03 02:46:06,077 INFO L138 SettingsManager]: * Log level for plugins=info [2019-10-03 02:46:06,078 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-03 02:46:06,078 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-03 02:46:06,079 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-10-03 02:46:06,079 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-10-03 02:46:06,080 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-03 02:46:06,080 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-10-03 02:46:06,081 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-03 02:46:06,081 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-03 02:46:06,082 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-03 02:46:06,083 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-03 02:46:06,083 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-03 02:46:06,083 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-03 02:46:06,083 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-03 02:46:06,084 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-03 02:46:06,084 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-03 02:46:06,084 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-03 02:46:06,084 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-03 02:46:06,085 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-10-03 02:46:06,085 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-03 02:46:06,086 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-03 02:46:06,086 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-03 02:46:06,086 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-03 02:46:06,086 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-03 02:46:06,087 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-03 02:46:06,087 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-03 02:46:06,087 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-10-03 02:46:06,141 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-03 02:46:06,154 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-03 02:46:06,157 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-03 02:46:06,159 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-03 02:46:06,160 INFO L275 PluginConnector]: CDTParser initialized [2019-10-03 02:46:06,160 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec3_product29.cil.c [2019-10-03 02:46:06,231 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c2efb1989/d9e2cf49ab174ca18c947cce21c8d3a0/FLAG3d9336a6e [2019-10-03 02:46:06,921 INFO L306 CDTParser]: Found 1 translation units. [2019-10-03 02:46:06,922 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec3_product29.cil.c [2019-10-03 02:46:06,943 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c2efb1989/d9e2cf49ab174ca18c947cce21c8d3a0/FLAG3d9336a6e [2019-10-03 02:46:07,157 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c2efb1989/d9e2cf49ab174ca18c947cce21c8d3a0 [2019-10-03 02:46:07,166 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-03 02:46:07,168 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-03 02:46:07,169 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-03 02:46:07,169 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-03 02:46:07,174 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-03 02:46:07,175 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 02:46:07" (1/1) ... [2019-10-03 02:46:07,179 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79bcd0e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:46:07, skipping insertion in model container [2019-10-03 02:46:07,179 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 02:46:07" (1/1) ... [2019-10-03 02:46:07,186 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-03 02:46:07,273 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-03 02:46:07,996 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 02:46:08,011 INFO L188 MainTranslator]: Completed pre-run [2019-10-03 02:46:08,140 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 02:46:08,196 INFO L192 MainTranslator]: Completed translation [2019-10-03 02:46:08,197 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:46:08 WrapperNode [2019-10-03 02:46:08,197 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-03 02:46:08,198 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-03 02:46:08,198 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-03 02:46:08,198 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-03 02:46:08,213 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:46:08" (1/1) ... [2019-10-03 02:46:08,213 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:46:08" (1/1) ... [2019-10-03 02:46:08,248 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:46:08" (1/1) ... [2019-10-03 02:46:08,249 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:46:08" (1/1) ... [2019-10-03 02:46:08,309 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:46:08" (1/1) ... [2019-10-03 02:46:08,344 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:46:08" (1/1) ... [2019-10-03 02:46:08,355 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:46:08" (1/1) ... [2019-10-03 02:46:08,372 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-03 02:46:08,373 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-03 02:46:08,373 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-03 02:46:08,373 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-03 02:46:08,375 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:46:08" (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 02:46:08,466 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-03 02:46:08,467 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-03 02:46:08,467 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-03 02:46:08,467 INFO L138 BoogieDeclarations]: Found implementation of procedure initFloors [2019-10-03 02:46:08,467 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2019-10-03 02:46:08,468 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2019-10-03 02:46:08,468 INFO L138 BoogieDeclarations]: Found implementation of procedure callOnFloor [2019-10-03 02:46:08,468 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2019-10-03 02:46:08,468 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2019-10-03 02:46:08,468 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2019-10-03 02:46:08,468 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2019-10-03 02:46:08,469 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-03 02:46:08,469 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-03 02:46:08,469 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-03 02:46:08,469 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-03 02:46:08,470 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-03 02:46:08,470 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-03 02:46:08,470 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-03 02:46:08,470 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-03 02:46:08,470 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-03 02:46:08,471 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-03 02:46:08,471 INFO L138 BoogieDeclarations]: Found implementation of procedure spec1 [2019-10-03 02:46:08,471 INFO L138 BoogieDeclarations]: Found implementation of procedure spec14 [2019-10-03 02:46:08,471 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2019-10-03 02:46:08,471 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2019-10-03 02:46:08,471 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2019-10-03 02:46:08,472 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-03 02:46:08,472 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2019-10-03 02:46:08,472 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__2 [2019-10-03 02:46:08,472 INFO L138 BoogieDeclarations]: Found implementation of procedure get_nondetMinMax07 [2019-10-03 02:46:08,472 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2019-10-03 02:46:08,472 INFO L138 BoogieDeclarations]: Found implementation of procedure aliceCall [2019-10-03 02:46:08,473 INFO L138 BoogieDeclarations]: Found implementation of procedure angelinaCall [2019-10-03 02:46:08,473 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckCall [2019-10-03 02:46:08,473 INFO L138 BoogieDeclarations]: Found implementation of procedure monicaCall [2019-10-03 02:46:08,473 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2019-10-03 02:46:08,473 INFO L138 BoogieDeclarations]: Found implementation of procedure threeTS [2019-10-03 02:46:08,473 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-03 02:46:08,473 INFO L138 BoogieDeclarations]: Found implementation of procedure randomSequenceOfActions [2019-10-03 02:46:08,474 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest_Simple [2019-10-03 02:46:08,474 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification1 [2019-10-03 02:46:08,474 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-03 02:46:08,474 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification3 [2019-10-03 02:46:08,474 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-03 02:46:08,474 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-03 02:46:08,475 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-03 02:46:08,475 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-03 02:46:08,475 INFO L138 BoogieDeclarations]: Found implementation of procedure initTopDown [2019-10-03 02:46:08,475 INFO L138 BoogieDeclarations]: Found implementation of procedure initBottomUp [2019-10-03 02:46:08,475 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2019-10-03 02:46:08,475 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator__wrappee__base [2019-10-03 02:46:08,476 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2019-10-03 02:46:08,476 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator__wrappee__base [2019-10-03 02:46:08,476 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator__wrappee__weight [2019-10-03 02:46:08,476 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2019-10-03 02:46:08,476 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2019-10-03 02:46:08,476 INFO L138 BoogieDeclarations]: Found implementation of procedure resetFloorButton [2019-10-03 02:46:08,476 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2019-10-03 02:46:08,477 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2019-10-03 02:46:08,477 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2019-10-03 02:46:08,477 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentHeading [2019-10-03 02:46:08,477 INFO L138 BoogieDeclarations]: Found implementation of procedure isEmpty [2019-10-03 02:46:08,477 INFO L138 BoogieDeclarations]: Found implementation of procedure anyStopRequested [2019-10-03 02:46:08,477 INFO L138 BoogieDeclarations]: Found implementation of procedure isIdle [2019-10-03 02:46:08,478 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__empty [2019-10-03 02:46:08,478 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2019-10-03 02:46:08,478 INFO L138 BoogieDeclarations]: Found implementation of procedure isAnyLiftButtonPressed [2019-10-03 02:46:08,478 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2019-10-03 02:46:08,478 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__empty [2019-10-03 02:46:08,478 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor [2019-10-03 02:46:08,479 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2019-10-03 02:46:08,479 INFO L138 BoogieDeclarations]: Found implementation of procedure processWaitingOnFloor [2019-10-03 02:46:08,479 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-03 02:46:08,479 INFO L138 BoogieDeclarations]: Found implementation of procedure printState [2019-10-03 02:46:08,479 INFO L138 BoogieDeclarations]: Found implementation of procedure existInLiftCallsInDirection [2019-10-03 02:46:08,480 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-03 02:46:08,480 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-03 02:46:08,480 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2019-10-03 02:46:08,480 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2019-10-03 02:46:08,480 INFO L130 BoogieDeclarations]: Found specification of procedure callOnFloor [2019-10-03 02:46:08,481 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2019-10-03 02:46:08,481 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2019-10-03 02:46:08,481 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2019-10-03 02:46:08,481 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2019-10-03 02:46:08,481 INFO L130 BoogieDeclarations]: Found specification of procedure initFloors [2019-10-03 02:46:08,482 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-03 02:46:08,482 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-03 02:46:08,482 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-03 02:46:08,482 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-03 02:46:08,482 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-03 02:46:08,483 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-03 02:46:08,483 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-03 02:46:08,483 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-03 02:46:08,483 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-03 02:46:08,483 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-03 02:46:08,484 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-03 02:46:08,484 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-03 02:46:08,484 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-03 02:46:08,484 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-03 02:46:08,485 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-03 02:46:08,485 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-03 02:46:08,485 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-03 02:46:08,485 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-03 02:46:08,485 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-03 02:46:08,486 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-03 02:46:08,486 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-03 02:46:08,486 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2019-10-03 02:46:08,486 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-03 02:46:08,486 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2019-10-03 02:46:08,487 INFO L130 BoogieDeclarations]: Found specification of procedure printState [2019-10-03 02:46:08,487 INFO L130 BoogieDeclarations]: Found specification of procedure initTopDown [2019-10-03 02:46:08,487 INFO L130 BoogieDeclarations]: Found specification of procedure initBottomUp [2019-10-03 02:46:08,487 INFO L130 BoogieDeclarations]: Found specification of procedure spec1 [2019-10-03 02:46:08,488 INFO L130 BoogieDeclarations]: Found specification of procedure spec14 [2019-10-03 02:46:08,488 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2019-10-03 02:46:08,488 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2019-10-03 02:46:08,488 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2019-10-03 02:46:08,488 INFO L130 BoogieDeclarations]: Found specification of procedure threeTS [2019-10-03 02:46:08,489 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-03 02:46:08,489 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-03 02:46:08,489 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-03 02:46:08,489 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2019-10-03 02:46:08,489 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2019-10-03 02:46:08,490 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentHeading [2019-10-03 02:46:08,490 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2019-10-03 02:46:08,490 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__2 [2019-10-03 02:46:08,490 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-03 02:46:08,490 INFO L130 BoogieDeclarations]: Found specification of procedure get_nondetMinMax07 [2019-10-03 02:46:08,490 INFO L130 BoogieDeclarations]: Found specification of procedure aliceCall [2019-10-03 02:46:08,491 INFO L130 BoogieDeclarations]: Found specification of procedure angelinaCall [2019-10-03 02:46:08,491 INFO L130 BoogieDeclarations]: Found specification of procedure chuckCall [2019-10-03 02:46:08,491 INFO L130 BoogieDeclarations]: Found specification of procedure monicaCall [2019-10-03 02:46:08,491 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2019-10-03 02:46:08,492 INFO L130 BoogieDeclarations]: Found specification of procedure isIdle [2019-10-03 02:46:08,492 INFO L130 BoogieDeclarations]: Found specification of procedure randomSequenceOfActions [2019-10-03 02:46:08,492 INFO L130 BoogieDeclarations]: Found specification of procedure runTest_Simple [2019-10-03 02:46:08,492 INFO L130 BoogieDeclarations]: Found specification of procedure Specification1 [2019-10-03 02:46:08,492 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-03 02:46:08,493 INFO L130 BoogieDeclarations]: Found specification of procedure Specification3 [2019-10-03 02:46:08,493 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-03 02:46:08,493 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-03 02:46:08,493 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-03 02:46:08,493 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-03 02:46:08,493 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2019-10-03 02:46:08,494 INFO L130 BoogieDeclarations]: Found specification of procedure isEmpty [2019-10-03 02:46:08,494 INFO L130 BoogieDeclarations]: Found specification of procedure isAnyLiftButtonPressed [2019-10-03 02:46:08,494 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2019-10-03 02:46:08,494 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator__wrappee__base [2019-10-03 02:46:08,494 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator__wrappee__base [2019-10-03 02:46:08,494 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator__wrappee__weight [2019-10-03 02:46:08,495 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2019-10-03 02:46:08,495 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2019-10-03 02:46:08,495 INFO L130 BoogieDeclarations]: Found specification of procedure resetFloorButton [2019-10-03 02:46:08,495 INFO L130 BoogieDeclarations]: Found specification of procedure anyStopRequested [2019-10-03 02:46:08,496 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__empty [2019-10-03 02:46:08,496 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2019-10-03 02:46:08,496 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2019-10-03 02:46:08,496 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__empty [2019-10-03 02:46:08,496 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor [2019-10-03 02:46:08,497 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2019-10-03 02:46:08,497 INFO L130 BoogieDeclarations]: Found specification of procedure processWaitingOnFloor [2019-10-03 02:46:08,497 INFO L130 BoogieDeclarations]: Found specification of procedure existInLiftCallsInDirection [2019-10-03 02:46:08,497 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-03 02:46:08,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-03 02:46:08,497 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-03 02:46:11,174 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-03 02:46:11,174 INFO L283 CfgBuilder]: Removed 10 assume(true) statements. [2019-10-03 02:46:11,176 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 02:46:11 BoogieIcfgContainer [2019-10-03 02:46:11,176 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-03 02:46:11,177 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-03 02:46:11,177 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-03 02:46:11,180 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-03 02:46:11,181 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.10 02:46:07" (1/3) ... [2019-10-03 02:46:11,181 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2870d1b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 02:46:11, skipping insertion in model container [2019-10-03 02:46:11,181 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:46:08" (2/3) ... [2019-10-03 02:46:11,182 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2870d1b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 02:46:11, skipping insertion in model container [2019-10-03 02:46:11,182 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 02:46:11" (3/3) ... [2019-10-03 02:46:11,184 INFO L109 eAbstractionObserver]: Analyzing ICFG elevator_spec3_product29.cil.c [2019-10-03 02:46:11,193 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-03 02:46:11,202 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-03 02:46:11,219 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-03 02:46:11,247 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-10-03 02:46:11,247 INFO L378 AbstractCegarLoop]: Hoare is false [2019-10-03 02:46:11,248 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-03 02:46:11,248 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-03 02:46:11,248 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-03 02:46:11,248 INFO L382 AbstractCegarLoop]: Difference is false [2019-10-03 02:46:11,248 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-03 02:46:11,248 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-03 02:46:11,282 INFO L276 IsEmpty]: Start isEmpty. Operand 809 states. [2019-10-03 02:46:11,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2019-10-03 02:46:11,330 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:46:11,334 INFO L411 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:46:11,340 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:46:11,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:46:11,348 INFO L82 PathProgramCache]: Analyzing trace with hash 1507991037, now seen corresponding path program 1 times [2019-10-03 02:46:11,350 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:46:11,399 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:46:11,400 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:46:11,400 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:46:11,400 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:46:11,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:46:12,123 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-03 02:46:12,125 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:46:12,126 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-03 02:46:12,126 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:46:12,134 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-03 02:46:12,149 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-03 02:46:12,152 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-03 02:46:12,154 INFO L87 Difference]: Start difference. First operand 809 states. Second operand 7 states. [2019-10-03 02:46:12,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:46:12,455 INFO L93 Difference]: Finished difference Result 668 states and 1059 transitions. [2019-10-03 02:46:12,455 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-03 02:46:12,457 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 132 [2019-10-03 02:46:12,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:46:12,497 INFO L225 Difference]: With dead ends: 668 [2019-10-03 02:46:12,498 INFO L226 Difference]: Without dead ends: 657 [2019-10-03 02:46:12,501 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 02:46:12,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 657 states. [2019-10-03 02:46:12,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 657 to 655. [2019-10-03 02:46:12,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 655 states. [2019-10-03 02:46:12,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 655 states to 655 states and 1042 transitions. [2019-10-03 02:46:12,646 INFO L78 Accepts]: Start accepts. Automaton has 655 states and 1042 transitions. Word has length 132 [2019-10-03 02:46:12,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:46:12,647 INFO L475 AbstractCegarLoop]: Abstraction has 655 states and 1042 transitions. [2019-10-03 02:46:12,647 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-03 02:46:12,647 INFO L276 IsEmpty]: Start isEmpty. Operand 655 states and 1042 transitions. [2019-10-03 02:46:12,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2019-10-03 02:46:12,662 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:46:12,663 INFO L411 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:46:12,663 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:46:12,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:46:12,664 INFO L82 PathProgramCache]: Analyzing trace with hash 740042646, now seen corresponding path program 1 times [2019-10-03 02:46:12,665 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:46:12,670 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:46:12,670 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:46:12,670 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:46:12,671 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:46:12,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:46:12,871 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-03 02:46:12,872 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:46:12,872 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-03 02:46:12,872 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:46:12,888 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-03 02:46:12,888 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-03 02:46:12,888 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-03 02:46:12,889 INFO L87 Difference]: Start difference. First operand 655 states and 1042 transitions. Second operand 4 states. [2019-10-03 02:46:12,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:46:12,964 INFO L93 Difference]: Finished difference Result 653 states and 1037 transitions. [2019-10-03 02:46:12,964 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-03 02:46:12,964 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 133 [2019-10-03 02:46:12,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:46:12,971 INFO L225 Difference]: With dead ends: 653 [2019-10-03 02:46:12,971 INFO L226 Difference]: Without dead ends: 637 [2019-10-03 02:46:12,972 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 02:46:12,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 637 states. [2019-10-03 02:46:13,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 637 to 637. [2019-10-03 02:46:13,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 637 states. [2019-10-03 02:46:13,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 637 states to 637 states and 1009 transitions. [2019-10-03 02:46:13,027 INFO L78 Accepts]: Start accepts. Automaton has 637 states and 1009 transitions. Word has length 133 [2019-10-03 02:46:13,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:46:13,028 INFO L475 AbstractCegarLoop]: Abstraction has 637 states and 1009 transitions. [2019-10-03 02:46:13,028 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-03 02:46:13,028 INFO L276 IsEmpty]: Start isEmpty. Operand 637 states and 1009 transitions. [2019-10-03 02:46:13,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2019-10-03 02:46:13,033 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:46:13,034 INFO L411 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:46:13,034 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:46:13,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:46:13,034 INFO L82 PathProgramCache]: Analyzing trace with hash -1282679504, now seen corresponding path program 1 times [2019-10-03 02:46:13,035 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:46:13,038 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:46:13,039 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:46:13,039 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:46:13,039 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:46:13,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:46:13,268 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-03 02:46:13,268 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:46:13,268 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-03 02:46:13,269 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:46:13,269 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-03 02:46:13,270 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-03 02:46:13,270 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-03 02:46:13,270 INFO L87 Difference]: Start difference. First operand 637 states and 1009 transitions. Second operand 7 states. [2019-10-03 02:46:13,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:46:13,368 INFO L93 Difference]: Finished difference Result 640 states and 1012 transitions. [2019-10-03 02:46:13,368 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-03 02:46:13,369 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 133 [2019-10-03 02:46:13,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:46:13,376 INFO L225 Difference]: With dead ends: 640 [2019-10-03 02:46:13,376 INFO L226 Difference]: Without dead ends: 631 [2019-10-03 02:46:13,377 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 02:46:13,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 631 states. [2019-10-03 02:46:13,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 631 to 631. [2019-10-03 02:46:13,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 631 states. [2019-10-03 02:46:13,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 631 states to 631 states and 996 transitions. [2019-10-03 02:46:13,406 INFO L78 Accepts]: Start accepts. Automaton has 631 states and 996 transitions. Word has length 133 [2019-10-03 02:46:13,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:46:13,407 INFO L475 AbstractCegarLoop]: Abstraction has 631 states and 996 transitions. [2019-10-03 02:46:13,408 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-03 02:46:13,408 INFO L276 IsEmpty]: Start isEmpty. Operand 631 states and 996 transitions. [2019-10-03 02:46:13,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2019-10-03 02:46:13,413 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:46:13,413 INFO L411 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:46:13,413 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:46:13,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:46:13,414 INFO L82 PathProgramCache]: Analyzing trace with hash 1828246713, now seen corresponding path program 1 times [2019-10-03 02:46:13,414 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:46:13,417 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:46:13,418 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:46:13,418 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:46:13,418 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:46:13,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:46:13,605 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-03 02:46:13,606 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:46:13,606 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-03 02:46:13,606 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:46:13,607 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-03 02:46:13,607 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-03 02:46:13,608 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-03 02:46:13,608 INFO L87 Difference]: Start difference. First operand 631 states and 996 transitions. Second operand 7 states. [2019-10-03 02:46:13,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:46:13,706 INFO L93 Difference]: Finished difference Result 634 states and 999 transitions. [2019-10-03 02:46:13,707 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-03 02:46:13,707 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 134 [2019-10-03 02:46:13,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:46:13,715 INFO L225 Difference]: With dead ends: 634 [2019-10-03 02:46:13,715 INFO L226 Difference]: Without dead ends: 625 [2019-10-03 02:46:13,716 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 02:46:13,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 625 states. [2019-10-03 02:46:13,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 625 to 625. [2019-10-03 02:46:13,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 625 states. [2019-10-03 02:46:13,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 625 states to 625 states and 983 transitions. [2019-10-03 02:46:13,741 INFO L78 Accepts]: Start accepts. Automaton has 625 states and 983 transitions. Word has length 134 [2019-10-03 02:46:13,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:46:13,741 INFO L475 AbstractCegarLoop]: Abstraction has 625 states and 983 transitions. [2019-10-03 02:46:13,741 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-03 02:46:13,742 INFO L276 IsEmpty]: Start isEmpty. Operand 625 states and 983 transitions. [2019-10-03 02:46:13,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2019-10-03 02:46:13,746 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:46:13,746 INFO L411 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:46:13,746 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:46:13,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:46:13,747 INFO L82 PathProgramCache]: Analyzing trace with hash -1089888596, now seen corresponding path program 1 times [2019-10-03 02:46:13,747 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:46:13,751 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:46:13,752 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:46:13,752 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:46:13,752 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:46:13,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:46:13,959 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-03 02:46:13,959 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:46:13,960 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-03 02:46:13,960 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:46:13,961 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-03 02:46:13,961 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-03 02:46:13,962 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-03 02:46:13,962 INFO L87 Difference]: Start difference. First operand 625 states and 983 transitions. Second operand 7 states. [2019-10-03 02:46:14,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:46:14,059 INFO L93 Difference]: Finished difference Result 628 states and 986 transitions. [2019-10-03 02:46:14,059 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-03 02:46:14,059 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 135 [2019-10-03 02:46:14,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:46:14,072 INFO L225 Difference]: With dead ends: 628 [2019-10-03 02:46:14,072 INFO L226 Difference]: Without dead ends: 619 [2019-10-03 02:46:14,073 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 02:46:14,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 619 states. [2019-10-03 02:46:14,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 619 to 619. [2019-10-03 02:46:14,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 619 states. [2019-10-03 02:46:14,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 619 states to 619 states and 970 transitions. [2019-10-03 02:46:14,098 INFO L78 Accepts]: Start accepts. Automaton has 619 states and 970 transitions. Word has length 135 [2019-10-03 02:46:14,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:46:14,098 INFO L475 AbstractCegarLoop]: Abstraction has 619 states and 970 transitions. [2019-10-03 02:46:14,098 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-03 02:46:14,099 INFO L276 IsEmpty]: Start isEmpty. Operand 619 states and 970 transitions. [2019-10-03 02:46:14,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2019-10-03 02:46:14,104 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:46:14,105 INFO L411 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:46:14,105 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:46:14,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:46:14,106 INFO L82 PathProgramCache]: Analyzing trace with hash -1231176309, now seen corresponding path program 1 times [2019-10-03 02:46:14,106 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:46:14,111 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:46:14,111 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:46:14,111 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:46:14,112 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:46:14,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:46:14,347 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-03 02:46:14,348 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:46:14,348 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-03 02:46:14,348 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:46:14,349 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-03 02:46:14,349 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-03 02:46:14,350 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-03 02:46:14,350 INFO L87 Difference]: Start difference. First operand 619 states and 970 transitions. Second operand 7 states. [2019-10-03 02:46:14,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:46:14,461 INFO L93 Difference]: Finished difference Result 622 states and 973 transitions. [2019-10-03 02:46:14,462 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-03 02:46:14,462 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 135 [2019-10-03 02:46:14,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:46:14,486 INFO L225 Difference]: With dead ends: 622 [2019-10-03 02:46:14,487 INFO L226 Difference]: Without dead ends: 619 [2019-10-03 02:46:14,488 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 02:46:14,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 619 states. [2019-10-03 02:46:14,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 619 to 619. [2019-10-03 02:46:14,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 619 states. [2019-10-03 02:46:14,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 619 states to 619 states and 969 transitions. [2019-10-03 02:46:14,531 INFO L78 Accepts]: Start accepts. Automaton has 619 states and 969 transitions. Word has length 135 [2019-10-03 02:46:14,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:46:14,532 INFO L475 AbstractCegarLoop]: Abstraction has 619 states and 969 transitions. [2019-10-03 02:46:14,532 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-03 02:46:14,532 INFO L276 IsEmpty]: Start isEmpty. Operand 619 states and 969 transitions. [2019-10-03 02:46:14,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2019-10-03 02:46:14,539 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:46:14,540 INFO L411 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:46:14,540 INFO L418 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:46:14,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:46:14,541 INFO L82 PathProgramCache]: Analyzing trace with hash -1930370187, now seen corresponding path program 1 times [2019-10-03 02:46:14,541 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:46:14,550 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:46:14,550 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:46:14,550 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:46:14,551 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:46:14,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:46:14,765 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-03 02:46:14,765 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:46:14,766 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-03 02:46:14,766 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:46:14,767 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-03 02:46:14,767 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-03 02:46:14,768 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-03 02:46:14,768 INFO L87 Difference]: Start difference. First operand 619 states and 969 transitions. Second operand 5 states. [2019-10-03 02:46:14,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:46:14,869 INFO L93 Difference]: Finished difference Result 621 states and 970 transitions. [2019-10-03 02:46:14,869 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-03 02:46:14,869 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 136 [2019-10-03 02:46:14,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:46:14,874 INFO L225 Difference]: With dead ends: 621 [2019-10-03 02:46:14,874 INFO L226 Difference]: Without dead ends: 619 [2019-10-03 02:46:14,875 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 02:46:14,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 619 states. [2019-10-03 02:46:14,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 619 to 619. [2019-10-03 02:46:14,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 619 states. [2019-10-03 02:46:14,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 619 states to 619 states and 968 transitions. [2019-10-03 02:46:14,899 INFO L78 Accepts]: Start accepts. Automaton has 619 states and 968 transitions. Word has length 136 [2019-10-03 02:46:14,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:46:14,899 INFO L475 AbstractCegarLoop]: Abstraction has 619 states and 968 transitions. [2019-10-03 02:46:14,899 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-03 02:46:14,900 INFO L276 IsEmpty]: Start isEmpty. Operand 619 states and 968 transitions. [2019-10-03 02:46:14,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2019-10-03 02:46:14,904 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:46:14,904 INFO L411 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:46:14,904 INFO L418 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:46:14,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:46:14,905 INFO L82 PathProgramCache]: Analyzing trace with hash 871571742, now seen corresponding path program 1 times [2019-10-03 02:46:14,905 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:46:14,909 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:46:14,909 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:46:14,909 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:46:14,909 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:46:14,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:46:15,069 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-03 02:46:15,069 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:46:15,069 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-03 02:46:15,070 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:46:15,070 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-03 02:46:15,071 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-03 02:46:15,071 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-03 02:46:15,071 INFO L87 Difference]: Start difference. First operand 619 states and 968 transitions. Second operand 5 states. [2019-10-03 02:46:15,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:46:15,169 INFO L93 Difference]: Finished difference Result 621 states and 969 transitions. [2019-10-03 02:46:15,169 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-03 02:46:15,169 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 137 [2019-10-03 02:46:15,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:46:15,174 INFO L225 Difference]: With dead ends: 621 [2019-10-03 02:46:15,174 INFO L226 Difference]: Without dead ends: 619 [2019-10-03 02:46:15,175 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 02:46:15,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 619 states. [2019-10-03 02:46:15,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 619 to 619. [2019-10-03 02:46:15,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 619 states. [2019-10-03 02:46:15,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 619 states to 619 states and 967 transitions. [2019-10-03 02:46:15,197 INFO L78 Accepts]: Start accepts. Automaton has 619 states and 967 transitions. Word has length 137 [2019-10-03 02:46:15,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:46:15,198 INFO L475 AbstractCegarLoop]: Abstraction has 619 states and 967 transitions. [2019-10-03 02:46:15,198 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-03 02:46:15,198 INFO L276 IsEmpty]: Start isEmpty. Operand 619 states and 967 transitions. [2019-10-03 02:46:15,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2019-10-03 02:46:15,204 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:46:15,204 INFO L411 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:46:15,205 INFO L418 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:46:15,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:46:15,205 INFO L82 PathProgramCache]: Analyzing trace with hash -1780748582, now seen corresponding path program 1 times [2019-10-03 02:46:15,206 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:46:15,210 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:46:15,210 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:46:15,211 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:46:15,211 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:46:15,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:46:15,364 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-03 02:46:15,365 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:46:15,365 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-03 02:46:15,365 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:46:15,366 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-03 02:46:15,366 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-03 02:46:15,366 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-03 02:46:15,366 INFO L87 Difference]: Start difference. First operand 619 states and 967 transitions. Second operand 5 states. [2019-10-03 02:46:15,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:46:15,425 INFO L93 Difference]: Finished difference Result 621 states and 968 transitions. [2019-10-03 02:46:15,425 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-03 02:46:15,425 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 138 [2019-10-03 02:46:15,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:46:15,430 INFO L225 Difference]: With dead ends: 621 [2019-10-03 02:46:15,430 INFO L226 Difference]: Without dead ends: 619 [2019-10-03 02:46:15,431 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 02:46:15,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 619 states. [2019-10-03 02:46:15,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 619 to 619. [2019-10-03 02:46:15,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 619 states. [2019-10-03 02:46:15,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 619 states to 619 states and 966 transitions. [2019-10-03 02:46:15,452 INFO L78 Accepts]: Start accepts. Automaton has 619 states and 966 transitions. Word has length 138 [2019-10-03 02:46:15,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:46:15,452 INFO L475 AbstractCegarLoop]: Abstraction has 619 states and 966 transitions. [2019-10-03 02:46:15,452 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-03 02:46:15,452 INFO L276 IsEmpty]: Start isEmpty. Operand 619 states and 966 transitions. [2019-10-03 02:46:15,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2019-10-03 02:46:15,456 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:46:15,457 INFO L411 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:46:15,457 INFO L418 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:46:15,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:46:15,457 INFO L82 PathProgramCache]: Analyzing trace with hash -1716506909, now seen corresponding path program 1 times [2019-10-03 02:46:15,458 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:46:15,461 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:46:15,462 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:46:15,462 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:46:15,462 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:46:15,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:46:15,588 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-03 02:46:15,589 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:46:15,589 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-03 02:46:15,589 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:46:15,590 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-03 02:46:15,590 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-03 02:46:15,590 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-03 02:46:15,590 INFO L87 Difference]: Start difference. First operand 619 states and 966 transitions. Second operand 5 states. [2019-10-03 02:46:15,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:46:15,644 INFO L93 Difference]: Finished difference Result 621 states and 967 transitions. [2019-10-03 02:46:15,644 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-03 02:46:15,645 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 139 [2019-10-03 02:46:15,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:46:15,649 INFO L225 Difference]: With dead ends: 621 [2019-10-03 02:46:15,650 INFO L226 Difference]: Without dead ends: 619 [2019-10-03 02:46:15,650 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 02:46:15,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 619 states. [2019-10-03 02:46:15,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 619 to 619. [2019-10-03 02:46:15,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 619 states. [2019-10-03 02:46:15,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 619 states to 619 states and 965 transitions. [2019-10-03 02:46:15,671 INFO L78 Accepts]: Start accepts. Automaton has 619 states and 965 transitions. Word has length 139 [2019-10-03 02:46:15,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:46:15,671 INFO L475 AbstractCegarLoop]: Abstraction has 619 states and 965 transitions. [2019-10-03 02:46:15,671 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-03 02:46:15,672 INFO L276 IsEmpty]: Start isEmpty. Operand 619 states and 965 transitions. [2019-10-03 02:46:15,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2019-10-03 02:46:15,676 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:46:15,676 INFO L411 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:46:15,676 INFO L418 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:46:15,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:46:15,677 INFO L82 PathProgramCache]: Analyzing trace with hash 956778047, now seen corresponding path program 1 times [2019-10-03 02:46:15,677 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:46:15,680 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:46:15,680 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:46:15,680 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:46:15,681 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:46:15,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:46:15,905 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-10-03 02:46:15,905 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-03 02:46:15,905 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-10-03 02:46:15,906 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 141 with the following transitions: [2019-10-03 02:46:15,909 INFO L207 CegarAbsIntRunner]: [55], [56], [57], [58], [140], [144], [147], [348], [351], [369], [384], [385], [387], [399], [401], [402], [451], [453], [455], [531], [698], [701], [860], [861], [864], [961], [964], [969], [972], [1038], [1043], [1076], [1077], [1112], [1114], [1157], [1160], [1162], [1164], [1168], [1169], [1205], [1241], [1277], [1313], [1316], [1319], [1352], [1353], [1354], [1361], [1366], [1371], [1376], [1381], [1384], [1388], [1617], [1620], [1642], [1658], [1671], [1674], [1680], [1684], [1760], [1763], [1781], [1782], [1783], [1825], [1828], [1830], [1833], [1909], [1911], [1913], [1988], [2001], [2015], [2029], [2043], [2057], [2059], [2325], [2519], [2520], [2521], [2522], [2523], [2524], [2525], [2526], [2527], [2565], [2566], [2571], [2572], [2573], [2574], [2575], [2576], [2577], [2578], [2579], [2580], [2581], [2631], [2632], [2633], [2634], [2663], [2664], [2665], [2666], [2677], [2695], [2696], [2701], [2702], [2703], [2704], [2707], [2708], [2709], [2735], [2749], [2750], [2751], [2767], [2768], [2769], [2770], [2801], [2802], [2803] [2019-10-03 02:46:15,985 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-10-03 02:46:15,985 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-03 02:46:16,159 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-10-03 02:46:16,161 INFO L272 AbstractInterpreter]: Visited 2 different actions 2 times. Never merged. Never widened. Performed 167 root evaluator evaluations with a maximum evaluation depth of 0. Performed 167 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 254 variables. [2019-10-03 02:46:16,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:46:16,167 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-10-03 02:46:16,272 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-10-03 02:46:16,273 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-10-03 02:46:16,284 INFO L420 sIntCurrentIteration]: We unified 139 AI predicates to 139 [2019-10-03 02:46:16,284 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-10-03 02:46:16,285 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-03 02:46:16,285 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [8] total 8 [2019-10-03 02:46:16,285 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:46:16,287 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-03 02:46:16,287 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-03 02:46:16,287 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-03 02:46:16,287 INFO L87 Difference]: Start difference. First operand 619 states and 965 transitions. Second operand 2 states. [2019-10-03 02:46:16,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:46:16,288 INFO L93 Difference]: Finished difference Result 2 states and 1 transitions. [2019-10-03 02:46:16,288 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-03 02:46:16,288 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 140 [2019-10-03 02:46:16,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:46:16,289 INFO L225 Difference]: With dead ends: 2 [2019-10-03 02:46:16,289 INFO L226 Difference]: Without dead ends: 0 [2019-10-03 02:46:16,290 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 139 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 02:46:16,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-03 02:46:16,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-03 02:46:16,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-03 02:46:16,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-03 02:46:16,290 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 140 [2019-10-03 02:46:16,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:46:16,291 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-03 02:46:16,291 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-03 02:46:16,291 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-03 02:46:16,291 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-03 02:46:16,298 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.10 02:46:16 BoogieIcfgContainer [2019-10-03 02:46:16,298 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-03 02:46:16,302 INFO L168 Benchmark]: Toolchain (without parser) took 9132.15 ms. Allocated memory was 140.5 MB in the beginning and 399.0 MB in the end (delta: 258.5 MB). Free memory was 85.0 MB in the beginning and 88.2 MB in the end (delta: -3.2 MB). Peak memory consumption was 255.3 MB. Max. memory is 7.1 GB. [2019-10-03 02:46:16,304 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 140.5 MB. Free memory was 106.6 MB in the beginning and 106.4 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-10-03 02:46:16,305 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1028.82 ms. Allocated memory was 140.5 MB in the beginning and 200.8 MB in the end (delta: 60.3 MB). Free memory was 84.8 MB in the beginning and 140.3 MB in the end (delta: -55.4 MB). Peak memory consumption was 31.2 MB. Max. memory is 7.1 GB. [2019-10-03 02:46:16,307 INFO L168 Benchmark]: Boogie Preprocessor took 174.61 ms. Allocated memory is still 200.8 MB. Free memory was 140.3 MB in the beginning and 130.7 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. [2019-10-03 02:46:16,313 INFO L168 Benchmark]: RCFGBuilder took 2803.14 ms. Allocated memory was 200.8 MB in the beginning and 265.3 MB in the end (delta: 64.5 MB). Free memory was 130.7 MB in the beginning and 141.8 MB in the end (delta: -11.1 MB). Peak memory consumption was 93.5 MB. Max. memory is 7.1 GB. [2019-10-03 02:46:16,314 INFO L168 Benchmark]: TraceAbstraction took 5121.25 ms. Allocated memory was 265.3 MB in the beginning and 399.0 MB in the end (delta: 133.7 MB). Free memory was 141.8 MB in the beginning and 88.2 MB in the end (delta: 53.6 MB). Peak memory consumption was 187.3 MB. Max. memory is 7.1 GB. [2019-10-03 02:46:16,325 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 140.5 MB. Free memory was 106.6 MB in the beginning and 106.4 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1028.82 ms. Allocated memory was 140.5 MB in the beginning and 200.8 MB in the end (delta: 60.3 MB). Free memory was 84.8 MB in the beginning and 140.3 MB in the end (delta: -55.4 MB). Peak memory consumption was 31.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 174.61 ms. Allocated memory is still 200.8 MB. Free memory was 140.3 MB in the beginning and 130.7 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 2803.14 ms. Allocated memory was 200.8 MB in the beginning and 265.3 MB in the end (delta: 64.5 MB). Free memory was 130.7 MB in the beginning and 141.8 MB in the end (delta: -11.1 MB). Peak memory consumption was 93.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 5121.25 ms. Allocated memory was 265.3 MB in the beginning and 399.0 MB in the end (delta: 133.7 MB). Free memory was 141.8 MB in the beginning and 88.2 MB in the end (delta: 53.6 MB). Peak memory consumption was 187.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1892]: 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 75 procedures, 925 locations, 1 error locations. SAFE Result, 5.0s OverallTime, 11 OverallIterations, 2 TraceHistogramMax, 1.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 9805 SDtfs, 375 SDslu, 37919 SDs, 0 SdLazy, 470 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 208 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=809occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.2s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 1.0 AbsIntWeakeningRatio, 2.1654676258992804 AbsIntAvgWeakeningVarsNumRemoved, 0.0 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 11 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 1492 NumberOfCodeBlocks, 1492 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 1481 ConstructedInterpolants, 0 QuantifiedInterpolants, 239075 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 10 PerfectInterpolantSequences, 64/66 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...