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_product24.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-10 02:34:17,210 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-10 02:34:17,212 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-10 02:34:17,227 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-10 02:34:17,227 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-10 02:34:17,229 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-10 02:34:17,231 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-10 02:34:17,243 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-10 02:34:17,245 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-10 02:34:17,245 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-10 02:34:17,246 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-10 02:34:17,247 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-10 02:34:17,248 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-10 02:34:17,249 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-10 02:34:17,251 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-10 02:34:17,253 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-10 02:34:17,254 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-10 02:34:17,258 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-10 02:34:17,259 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-10 02:34:17,262 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-10 02:34:17,265 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-10 02:34:17,266 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-10 02:34:17,267 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-10 02:34:17,267 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-10 02:34:17,269 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-10 02:34:17,270 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-10 02:34:17,270 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-10 02:34:17,271 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-10 02:34:17,271 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-10 02:34:17,272 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-10 02:34:17,272 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-10 02:34:17,273 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-10 02:34:17,273 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-10 02:34:17,274 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-10 02:34:17,275 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-10 02:34:17,275 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-10 02:34:17,276 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-10 02:34:17,276 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-10 02:34:17,276 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-10 02:34:17,277 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-10 02:34:17,278 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-10 02:34:17,278 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 [2019-09-10 02:34:17,296 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-10 02:34:17,296 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-10 02:34:17,297 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-10 02:34:17,297 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-10 02:34:17,298 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-10 02:34:17,298 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-10 02:34:17,298 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-10 02:34:17,298 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-10 02:34:17,299 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-10 02:34:17,299 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-10 02:34:17,299 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-10 02:34:17,300 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-10 02:34:17,300 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-10 02:34:17,301 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-10 02:34:17,301 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-10 02:34:17,302 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-10 02:34:17,302 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-10 02:34:17,302 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-10 02:34:17,302 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-10 02:34:17,303 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-10 02:34:17,303 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-10 02:34:17,303 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-10 02:34:17,303 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-10 02:34:17,304 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 02:34:17,304 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-10 02:34:17,304 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-10 02:34:17,305 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-10 02:34:17,305 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-10 02:34:17,305 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-10 02:34:17,305 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-10 02:34:17,339 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-10 02:34:17,350 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-10 02:34:17,353 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-10 02:34:17,355 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-10 02:34:17,355 INFO L275 PluginConnector]: CDTParser initialized [2019-09-10 02:34:17,356 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec3_product24.cil.c [2019-09-10 02:34:17,421 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/657e74e22/69c550d418f6497eb2f3a8135f2c92db/FLAG39b3b2f84 [2019-09-10 02:34:18,067 INFO L306 CDTParser]: Found 1 translation units. [2019-09-10 02:34:18,068 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec3_product24.cil.c [2019-09-10 02:34:18,101 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/657e74e22/69c550d418f6497eb2f3a8135f2c92db/FLAG39b3b2f84 [2019-09-10 02:34:18,249 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/657e74e22/69c550d418f6497eb2f3a8135f2c92db [2019-09-10 02:34:18,259 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-10 02:34:18,260 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-10 02:34:18,261 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-10 02:34:18,262 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-10 02:34:18,265 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-10 02:34:18,266 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 02:34:18" (1/1) ... [2019-09-10 02:34:18,269 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66aadf2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:34:18, skipping insertion in model container [2019-09-10 02:34:18,269 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 02:34:18" (1/1) ... [2019-09-10 02:34:18,275 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-10 02:34:18,353 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-10 02:34:18,973 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 02:34:18,994 INFO L188 MainTranslator]: Completed pre-run [2019-09-10 02:34:19,158 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 02:34:19,220 INFO L192 MainTranslator]: Completed translation [2019-09-10 02:34:19,220 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:34:19 WrapperNode [2019-09-10 02:34:19,221 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-10 02:34:19,221 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-10 02:34:19,222 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-10 02:34:19,222 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-10 02:34:19,234 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:34:19" (1/1) ... [2019-09-10 02:34:19,234 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:34:19" (1/1) ... [2019-09-10 02:34:19,269 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:34:19" (1/1) ... [2019-09-10 02:34:19,270 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:34:19" (1/1) ... [2019-09-10 02:34:19,331 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:34:19" (1/1) ... [2019-09-10 02:34:19,365 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:34:19" (1/1) ... [2019-09-10 02:34:19,375 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:34:19" (1/1) ... [2019-09-10 02:34:19,392 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-10 02:34:19,395 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-10 02:34:19,396 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-10 02:34:19,396 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-10 02:34:19,397 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:34:19" (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 [2019-09-10 02:34:19,464 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-10 02:34:19,465 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-10 02:34:19,465 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-10 02:34:19,465 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-10 02:34:19,465 INFO L138 BoogieDeclarations]: Found implementation of procedure get_nondetMinMax07 [2019-09-10 02:34:19,466 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2019-09-10 02:34:19,466 INFO L138 BoogieDeclarations]: Found implementation of procedure aliceCall [2019-09-10 02:34:19,466 INFO L138 BoogieDeclarations]: Found implementation of procedure angelinaCall [2019-09-10 02:34:19,466 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckCall [2019-09-10 02:34:19,466 INFO L138 BoogieDeclarations]: Found implementation of procedure monicaCall [2019-09-10 02:34:19,467 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2019-09-10 02:34:19,467 INFO L138 BoogieDeclarations]: Found implementation of procedure threeTS [2019-09-10 02:34:19,467 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-10 02:34:19,468 INFO L138 BoogieDeclarations]: Found implementation of procedure randomSequenceOfActions [2019-09-10 02:34:19,468 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest_Simple [2019-09-10 02:34:19,468 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification1 [2019-09-10 02:34:19,468 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-09-10 02:34:19,469 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification3 [2019-09-10 02:34:19,469 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-10 02:34:19,469 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-09-10 02:34:19,469 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-10 02:34:19,469 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2019-09-10 02:34:19,470 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2019-09-10 02:34:19,470 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2019-09-10 02:34:19,470 INFO L138 BoogieDeclarations]: Found implementation of procedure spec1 [2019-09-10 02:34:19,470 INFO L138 BoogieDeclarations]: Found implementation of procedure spec14 [2019-09-10 02:34:19,470 INFO L138 BoogieDeclarations]: Found implementation of procedure initTopDown [2019-09-10 02:34:19,471 INFO L138 BoogieDeclarations]: Found implementation of procedure initBottomUp [2019-09-10 02:34:19,471 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2019-09-10 02:34:19,471 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator__wrappee__base [2019-09-10 02:34:19,471 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2019-09-10 02:34:19,472 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator__wrappee__base [2019-09-10 02:34:19,472 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2019-09-10 02:34:19,472 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2019-09-10 02:34:19,472 INFO L138 BoogieDeclarations]: Found implementation of procedure resetFloorButton [2019-09-10 02:34:19,472 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2019-09-10 02:34:19,473 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2019-09-10 02:34:19,473 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2019-09-10 02:34:19,473 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentHeading [2019-09-10 02:34:19,473 INFO L138 BoogieDeclarations]: Found implementation of procedure isEmpty [2019-09-10 02:34:19,473 INFO L138 BoogieDeclarations]: Found implementation of procedure anyStopRequested [2019-09-10 02:34:19,474 INFO L138 BoogieDeclarations]: Found implementation of procedure isIdle [2019-09-10 02:34:19,474 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__weight [2019-09-10 02:34:19,474 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__twothirdsfull [2019-09-10 02:34:19,474 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2019-09-10 02:34:19,474 INFO L138 BoogieDeclarations]: Found implementation of procedure isAnyLiftButtonPressed [2019-09-10 02:34:19,474 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2019-09-10 02:34:19,475 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__weight [2019-09-10 02:34:19,475 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__twothirdsfull [2019-09-10 02:34:19,475 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor [2019-09-10 02:34:19,475 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2019-09-10 02:34:19,475 INFO L138 BoogieDeclarations]: Found implementation of procedure processWaitingOnFloor [2019-09-10 02:34:19,476 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift__wrappee__executivefloor [2019-09-10 02:34:19,476 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-09-10 02:34:19,476 INFO L138 BoogieDeclarations]: Found implementation of procedure printState__wrappee__executivefloor [2019-09-10 02:34:19,476 INFO L138 BoogieDeclarations]: Found implementation of procedure printState [2019-09-10 02:34:19,476 INFO L138 BoogieDeclarations]: Found implementation of procedure existInLiftCallsInDirection [2019-09-10 02:34:19,476 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2019-09-10 02:34:19,476 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloor [2019-09-10 02:34:19,477 INFO L138 BoogieDeclarations]: Found implementation of procedure initFloors [2019-09-10 02:34:19,477 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2019-09-10 02:34:19,477 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2019-09-10 02:34:19,477 INFO L138 BoogieDeclarations]: Found implementation of procedure callOnFloor [2019-09-10 02:34:19,477 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2019-09-10 02:34:19,477 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2019-09-10 02:34:19,478 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2019-09-10 02:34:19,478 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2019-09-10 02:34:19,478 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2019-09-10 02:34:19,478 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__2 [2019-09-10 02:34:19,478 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-10 02:34:19,478 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-10 02:34:19,478 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-10 02:34:19,479 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-10 02:34:19,479 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-10 02:34:19,479 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-10 02:34:19,479 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-10 02:34:19,479 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-10 02:34:19,479 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-10 02:34:19,480 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-10 02:34:19,480 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-10 02:34:19,480 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-10 02:34:19,480 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-10 02:34:19,480 INFO L130 BoogieDeclarations]: Found specification of procedure initTopDown [2019-09-10 02:34:19,480 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2019-09-10 02:34:19,481 INFO L130 BoogieDeclarations]: Found specification of procedure threeTS [2019-09-10 02:34:19,481 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-10 02:34:19,481 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-10 02:34:19,481 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-09-10 02:34:19,481 INFO L130 BoogieDeclarations]: Found specification of procedure get_nondetMinMax07 [2019-09-10 02:34:19,481 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2019-09-10 02:34:19,482 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2019-09-10 02:34:19,482 INFO L130 BoogieDeclarations]: Found specification of procedure aliceCall [2019-09-10 02:34:19,482 INFO L130 BoogieDeclarations]: Found specification of procedure angelinaCall [2019-09-10 02:34:19,482 INFO L130 BoogieDeclarations]: Found specification of procedure chuckCall [2019-09-10 02:34:19,482 INFO L130 BoogieDeclarations]: Found specification of procedure monicaCall [2019-09-10 02:34:19,482 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2019-09-10 02:34:19,482 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-09-10 02:34:19,483 INFO L130 BoogieDeclarations]: Found specification of procedure isIdle [2019-09-10 02:34:19,483 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2019-09-10 02:34:19,483 INFO L130 BoogieDeclarations]: Found specification of procedure initBottomUp [2019-09-10 02:34:19,483 INFO L130 BoogieDeclarations]: Found specification of procedure randomSequenceOfActions [2019-09-10 02:34:19,483 INFO L130 BoogieDeclarations]: Found specification of procedure runTest_Simple [2019-09-10 02:34:19,483 INFO L130 BoogieDeclarations]: Found specification of procedure Specification1 [2019-09-10 02:34:19,483 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-09-10 02:34:19,484 INFO L130 BoogieDeclarations]: Found specification of procedure Specification3 [2019-09-10 02:34:19,484 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-10 02:34:19,484 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-09-10 02:34:19,484 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-10 02:34:19,484 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-10 02:34:19,484 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-10 02:34:19,485 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-10 02:34:19,485 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2019-09-10 02:34:19,485 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2019-09-10 02:34:19,485 INFO L130 BoogieDeclarations]: Found specification of procedure printState [2019-09-10 02:34:19,485 INFO L130 BoogieDeclarations]: Found specification of procedure spec1 [2019-09-10 02:34:19,485 INFO L130 BoogieDeclarations]: Found specification of procedure spec14 [2019-09-10 02:34:19,485 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-10 02:34:19,486 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2019-09-10 02:34:19,486 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2019-09-10 02:34:19,486 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2019-09-10 02:34:19,486 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2019-09-10 02:34:19,486 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2019-09-10 02:34:19,486 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2019-09-10 02:34:19,487 INFO L130 BoogieDeclarations]: Found specification of procedure initFloors [2019-09-10 02:34:19,487 INFO L130 BoogieDeclarations]: Found specification of procedure isEmpty [2019-09-10 02:34:19,487 INFO L130 BoogieDeclarations]: Found specification of procedure isAnyLiftButtonPressed [2019-09-10 02:34:19,487 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2019-09-10 02:34:19,487 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2019-09-10 02:34:19,487 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2019-09-10 02:34:19,487 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2019-09-10 02:34:19,488 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloor [2019-09-10 02:34:19,488 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator__wrappee__base [2019-09-10 02:34:19,488 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator__wrappee__base [2019-09-10 02:34:19,488 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2019-09-10 02:34:19,488 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2019-09-10 02:34:19,488 INFO L130 BoogieDeclarations]: Found specification of procedure resetFloorButton [2019-09-10 02:34:19,488 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentHeading [2019-09-10 02:34:19,489 INFO L130 BoogieDeclarations]: Found specification of procedure anyStopRequested [2019-09-10 02:34:19,489 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__weight [2019-09-10 02:34:19,489 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__twothirdsfull [2019-09-10 02:34:19,489 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2019-09-10 02:34:19,489 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2019-09-10 02:34:19,489 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__weight [2019-09-10 02:34:19,490 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__twothirdsfull [2019-09-10 02:34:19,490 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor [2019-09-10 02:34:19,490 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2019-09-10 02:34:19,490 INFO L130 BoogieDeclarations]: Found specification of procedure processWaitingOnFloor [2019-09-10 02:34:19,490 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift__wrappee__executivefloor [2019-09-10 02:34:19,490 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2019-09-10 02:34:19,491 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__2 [2019-09-10 02:34:19,491 INFO L130 BoogieDeclarations]: Found specification of procedure printState__wrappee__executivefloor [2019-09-10 02:34:19,491 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-10 02:34:19,491 INFO L130 BoogieDeclarations]: Found specification of procedure existInLiftCallsInDirection [2019-09-10 02:34:19,491 INFO L130 BoogieDeclarations]: Found specification of procedure callOnFloor [2019-09-10 02:34:19,491 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-10 02:34:19,491 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-10 02:34:19,491 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-10 02:34:19,492 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-10 02:34:19,492 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-10 02:34:19,492 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-10 02:34:19,492 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-10 02:34:19,492 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-10 02:34:19,492 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-10 02:34:19,493 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-10 02:34:19,493 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-10 02:34:19,493 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-10 02:34:19,493 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-10 02:34:19,493 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-10 02:34:19,493 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-10 02:34:19,493 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-10 02:34:19,493 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-10 02:34:19,494 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-10 02:34:19,494 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-10 02:34:19,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-10 02:34:19,494 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-10 02:34:21,745 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-10 02:34:21,746 INFO L283 CfgBuilder]: Removed 10 assume(true) statements. [2019-09-10 02:34:21,748 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 02:34:21 BoogieIcfgContainer [2019-09-10 02:34:21,748 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-10 02:34:21,749 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-10 02:34:21,750 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-10 02:34:21,753 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-10 02:34:21,753 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 02:34:18" (1/3) ... [2019-09-10 02:34:21,754 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e9417f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 02:34:21, skipping insertion in model container [2019-09-10 02:34:21,754 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:34:19" (2/3) ... [2019-09-10 02:34:21,755 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e9417f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 02:34:21, skipping insertion in model container [2019-09-10 02:34:21,755 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 02:34:21" (3/3) ... [2019-09-10 02:34:21,756 INFO L109 eAbstractionObserver]: Analyzing ICFG elevator_spec3_product24.cil.c [2019-09-10 02:34:21,767 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-10 02:34:21,777 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-10 02:34:21,795 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-10 02:34:21,830 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-10 02:34:21,830 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-10 02:34:21,830 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-10 02:34:21,831 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-10 02:34:21,831 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-10 02:34:21,831 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-10 02:34:21,831 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-10 02:34:21,831 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-10 02:34:21,878 INFO L276 IsEmpty]: Start isEmpty. Operand 840 states. [2019-09-10 02:34:21,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2019-09-10 02:34:21,902 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:34:21,903 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:34:21,905 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:34:21,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:34:21,911 INFO L82 PathProgramCache]: Analyzing trace with hash 1561812380, now seen corresponding path program 1 times [2019-09-10 02:34:21,913 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:34:21,961 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:34:21,962 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:34:21,962 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:34:21,962 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:34:22,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:34:22,590 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-10 02:34:22,593 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:34:22,593 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-10 02:34:22,593 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:34:22,601 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-10 02:34:22,618 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-10 02:34:22,619 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-10 02:34:22,622 INFO L87 Difference]: Start difference. First operand 840 states. Second operand 7 states. [2019-09-10 02:34:22,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:34:22,850 INFO L93 Difference]: Finished difference Result 692 states and 1087 transitions. [2019-09-10 02:34:22,851 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-10 02:34:22,852 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 93 [2019-09-10 02:34:22,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:34:22,887 INFO L225 Difference]: With dead ends: 692 [2019-09-10 02:34:22,887 INFO L226 Difference]: Without dead ends: 681 [2019-09-10 02:34:22,889 INFO L628 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 [2019-09-10 02:34:22,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 681 states. [2019-09-10 02:34:22,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 681 to 679. [2019-09-10 02:34:23,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 679 states. [2019-09-10 02:34:23,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 679 states to 679 states and 1070 transitions. [2019-09-10 02:34:23,019 INFO L78 Accepts]: Start accepts. Automaton has 679 states and 1070 transitions. Word has length 93 [2019-09-10 02:34:23,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:34:23,020 INFO L475 AbstractCegarLoop]: Abstraction has 679 states and 1070 transitions. [2019-09-10 02:34:23,021 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-10 02:34:23,021 INFO L276 IsEmpty]: Start isEmpty. Operand 679 states and 1070 transitions. [2019-09-10 02:34:23,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2019-09-10 02:34:23,033 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:34:23,033 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:34:23,033 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:34:23,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:34:23,034 INFO L82 PathProgramCache]: Analyzing trace with hash 46311185, now seen corresponding path program 1 times [2019-09-10 02:34:23,034 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:34:23,035 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:34:23,035 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:34:23,036 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:34:23,036 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:34:23,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:34:23,324 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-10 02:34:23,324 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:34:23,324 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-10 02:34:23,324 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:34:23,326 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-10 02:34:23,326 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-10 02:34:23,327 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-10 02:34:23,327 INFO L87 Difference]: Start difference. First operand 679 states and 1070 transitions. Second operand 4 states. [2019-09-10 02:34:23,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:34:23,390 INFO L93 Difference]: Finished difference Result 677 states and 1065 transitions. [2019-09-10 02:34:23,391 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-09-10 02:34:23,391 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 94 [2019-09-10 02:34:23,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:34:23,399 INFO L225 Difference]: With dead ends: 677 [2019-09-10 02:34:23,399 INFO L226 Difference]: Without dead ends: 661 [2019-09-10 02:34:23,400 INFO L628 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 [2019-09-10 02:34:23,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 661 states. [2019-09-10 02:34:23,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 661 to 661. [2019-09-10 02:34:23,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 661 states. [2019-09-10 02:34:23,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 661 states to 661 states and 1037 transitions. [2019-09-10 02:34:23,462 INFO L78 Accepts]: Start accepts. Automaton has 661 states and 1037 transitions. Word has length 94 [2019-09-10 02:34:23,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:34:23,463 INFO L475 AbstractCegarLoop]: Abstraction has 661 states and 1037 transitions. [2019-09-10 02:34:23,463 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-10 02:34:23,463 INFO L276 IsEmpty]: Start isEmpty. Operand 661 states and 1037 transitions. [2019-09-10 02:34:23,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2019-09-10 02:34:23,471 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:34:23,471 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:34:23,471 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:34:23,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:34:23,472 INFO L82 PathProgramCache]: Analyzing trace with hash -1318948269, now seen corresponding path program 1 times [2019-09-10 02:34:23,472 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:34:23,473 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:34:23,473 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:34:23,474 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:34:23,474 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:34:23,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:34:23,703 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-10 02:34:23,704 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:34:23,704 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-10 02:34:23,704 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:34:23,706 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-10 02:34:23,707 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-10 02:34:23,707 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-10 02:34:23,707 INFO L87 Difference]: Start difference. First operand 661 states and 1037 transitions. Second operand 7 states. [2019-09-10 02:34:23,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:34:23,848 INFO L93 Difference]: Finished difference Result 664 states and 1040 transitions. [2019-09-10 02:34:23,848 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-10 02:34:23,848 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 94 [2019-09-10 02:34:23,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:34:23,853 INFO L225 Difference]: With dead ends: 664 [2019-09-10 02:34:23,853 INFO L226 Difference]: Without dead ends: 655 [2019-09-10 02:34:23,854 INFO L628 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 [2019-09-10 02:34:23,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 655 states. [2019-09-10 02:34:23,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 655 to 655. [2019-09-10 02:34:23,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 655 states. [2019-09-10 02:34:23,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 655 states to 655 states and 1024 transitions. [2019-09-10 02:34:23,896 INFO L78 Accepts]: Start accepts. Automaton has 655 states and 1024 transitions. Word has length 94 [2019-09-10 02:34:23,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:34:23,900 INFO L475 AbstractCegarLoop]: Abstraction has 655 states and 1024 transitions. [2019-09-10 02:34:23,900 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-10 02:34:23,900 INFO L276 IsEmpty]: Start isEmpty. Operand 655 states and 1024 transitions. [2019-09-10 02:34:23,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2019-09-10 02:34:23,904 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:34:23,904 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:34:23,906 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:34:23,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:34:23,906 INFO L82 PathProgramCache]: Analyzing trace with hash 1711940512, now seen corresponding path program 1 times [2019-09-10 02:34:23,906 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:34:23,907 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:34:23,908 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:34:23,908 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:34:23,908 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:34:23,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:34:24,135 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-10 02:34:24,136 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:34:24,136 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-10 02:34:24,136 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:34:24,137 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-10 02:34:24,137 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-10 02:34:24,138 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-10 02:34:24,138 INFO L87 Difference]: Start difference. First operand 655 states and 1024 transitions. Second operand 7 states. [2019-09-10 02:34:24,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:34:24,241 INFO L93 Difference]: Finished difference Result 658 states and 1027 transitions. [2019-09-10 02:34:24,242 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-10 02:34:24,242 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 95 [2019-09-10 02:34:24,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:34:24,251 INFO L225 Difference]: With dead ends: 658 [2019-09-10 02:34:24,251 INFO L226 Difference]: Without dead ends: 649 [2019-09-10 02:34:24,252 INFO L628 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 [2019-09-10 02:34:24,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 649 states. [2019-09-10 02:34:24,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 649 to 649. [2019-09-10 02:34:24,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 649 states. [2019-09-10 02:34:24,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 649 states to 649 states and 1011 transitions. [2019-09-10 02:34:24,279 INFO L78 Accepts]: Start accepts. Automaton has 649 states and 1011 transitions. Word has length 95 [2019-09-10 02:34:24,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:34:24,280 INFO L475 AbstractCegarLoop]: Abstraction has 649 states and 1011 transitions. [2019-09-10 02:34:24,280 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-10 02:34:24,280 INFO L276 IsEmpty]: Start isEmpty. Operand 649 states and 1011 transitions. [2019-09-10 02:34:24,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2019-09-10 02:34:24,284 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:34:24,284 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:34:24,284 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:34:24,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:34:24,285 INFO L82 PathProgramCache]: Analyzing trace with hash -974599401, now seen corresponding path program 1 times [2019-09-10 02:34:24,285 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:34:24,286 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:34:24,286 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:34:24,286 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:34:24,286 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:34:24,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:34:24,436 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-10 02:34:24,436 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:34:24,436 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-10 02:34:24,436 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:34:24,437 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-10 02:34:24,438 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-10 02:34:24,438 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-10 02:34:24,438 INFO L87 Difference]: Start difference. First operand 649 states and 1011 transitions. Second operand 7 states. [2019-09-10 02:34:24,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:34:24,521 INFO L93 Difference]: Finished difference Result 652 states and 1014 transitions. [2019-09-10 02:34:24,522 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-10 02:34:24,522 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 96 [2019-09-10 02:34:24,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:34:24,535 INFO L225 Difference]: With dead ends: 652 [2019-09-10 02:34:24,535 INFO L226 Difference]: Without dead ends: 643 [2019-09-10 02:34:24,536 INFO L628 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 [2019-09-10 02:34:24,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 643 states. [2019-09-10 02:34:24,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 643 to 643. [2019-09-10 02:34:24,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 643 states. [2019-09-10 02:34:24,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 643 states to 643 states and 998 transitions. [2019-09-10 02:34:24,558 INFO L78 Accepts]: Start accepts. Automaton has 643 states and 998 transitions. Word has length 96 [2019-09-10 02:34:24,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:34:24,559 INFO L475 AbstractCegarLoop]: Abstraction has 643 states and 998 transitions. [2019-09-10 02:34:24,559 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-10 02:34:24,559 INFO L276 IsEmpty]: Start isEmpty. Operand 643 states and 998 transitions. [2019-09-10 02:34:24,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2019-09-10 02:34:24,561 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:34:24,561 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:34:24,561 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:34:24,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:34:24,561 INFO L82 PathProgramCache]: Analyzing trace with hash 414342424, now seen corresponding path program 1 times [2019-09-10 02:34:24,562 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:34:24,564 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:34:24,565 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:34:24,565 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:34:24,567 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:34:24,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:34:24,715 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-10 02:34:24,716 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:34:24,724 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-10 02:34:24,724 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:34:24,725 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-10 02:34:24,725 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-10 02:34:24,726 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-10 02:34:24,726 INFO L87 Difference]: Start difference. First operand 643 states and 998 transitions. Second operand 7 states. [2019-09-10 02:34:24,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:34:24,808 INFO L93 Difference]: Finished difference Result 646 states and 1001 transitions. [2019-09-10 02:34:24,809 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-10 02:34:24,809 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 96 [2019-09-10 02:34:24,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:34:24,815 INFO L225 Difference]: With dead ends: 646 [2019-09-10 02:34:24,815 INFO L226 Difference]: Without dead ends: 643 [2019-09-10 02:34:24,815 INFO L628 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 [2019-09-10 02:34:24,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 643 states. [2019-09-10 02:34:24,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 643 to 643. [2019-09-10 02:34:24,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 643 states. [2019-09-10 02:34:24,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 643 states to 643 states and 997 transitions. [2019-09-10 02:34:24,841 INFO L78 Accepts]: Start accepts. Automaton has 643 states and 997 transitions. Word has length 96 [2019-09-10 02:34:24,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:34:24,841 INFO L475 AbstractCegarLoop]: Abstraction has 643 states and 997 transitions. [2019-09-10 02:34:24,842 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-10 02:34:24,842 INFO L276 IsEmpty]: Start isEmpty. Operand 643 states and 997 transitions. [2019-09-10 02:34:24,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2019-09-10 02:34:24,843 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:34:24,844 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:34:24,844 INFO L418 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:34:24,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:34:24,844 INFO L82 PathProgramCache]: Analyzing trace with hash -512802396, now seen corresponding path program 1 times [2019-09-10 02:34:24,845 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:34:24,845 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:34:24,846 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:34:24,894 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:34:24,894 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:34:24,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:34:25,011 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-10 02:34:25,012 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:34:25,012 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-10 02:34:25,012 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:34:25,012 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-10 02:34:25,013 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-10 02:34:25,013 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-10 02:34:25,013 INFO L87 Difference]: Start difference. First operand 643 states and 997 transitions. Second operand 5 states. [2019-09-10 02:34:25,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:34:25,083 INFO L93 Difference]: Finished difference Result 645 states and 998 transitions. [2019-09-10 02:34:25,083 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-10 02:34:25,083 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 97 [2019-09-10 02:34:25,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:34:25,089 INFO L225 Difference]: With dead ends: 645 [2019-09-10 02:34:25,089 INFO L226 Difference]: Without dead ends: 643 [2019-09-10 02:34:25,090 INFO L628 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 [2019-09-10 02:34:25,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 643 states. [2019-09-10 02:34:25,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 643 to 643. [2019-09-10 02:34:25,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 643 states. [2019-09-10 02:34:25,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 643 states to 643 states and 996 transitions. [2019-09-10 02:34:25,114 INFO L78 Accepts]: Start accepts. Automaton has 643 states and 996 transitions. Word has length 97 [2019-09-10 02:34:25,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:34:25,114 INFO L475 AbstractCegarLoop]: Abstraction has 643 states and 996 transitions. [2019-09-10 02:34:25,114 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-10 02:34:25,114 INFO L276 IsEmpty]: Start isEmpty. Operand 643 states and 996 transitions. [2019-09-10 02:34:25,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2019-09-10 02:34:25,116 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:34:25,116 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:34:25,116 INFO L418 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:34:25,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:34:25,117 INFO L82 PathProgramCache]: Analyzing trace with hash -288681029, now seen corresponding path program 1 times [2019-09-10 02:34:25,117 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:34:25,117 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:34:25,118 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:34:25,118 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:34:25,118 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:34:25,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:34:25,224 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-10 02:34:25,224 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:34:25,225 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-10 02:34:25,225 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:34:25,225 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-10 02:34:25,225 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-10 02:34:25,226 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-10 02:34:25,226 INFO L87 Difference]: Start difference. First operand 643 states and 996 transitions. Second operand 5 states. [2019-09-10 02:34:25,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:34:25,291 INFO L93 Difference]: Finished difference Result 645 states and 997 transitions. [2019-09-10 02:34:25,292 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-10 02:34:25,292 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 98 [2019-09-10 02:34:25,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:34:25,297 INFO L225 Difference]: With dead ends: 645 [2019-09-10 02:34:25,297 INFO L226 Difference]: Without dead ends: 643 [2019-09-10 02:34:25,297 INFO L628 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 [2019-09-10 02:34:25,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 643 states. [2019-09-10 02:34:25,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 643 to 643. [2019-09-10 02:34:25,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 643 states. [2019-09-10 02:34:25,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 643 states to 643 states and 995 transitions. [2019-09-10 02:34:25,318 INFO L78 Accepts]: Start accepts. Automaton has 643 states and 995 transitions. Word has length 98 [2019-09-10 02:34:25,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:34:25,319 INFO L475 AbstractCegarLoop]: Abstraction has 643 states and 995 transitions. [2019-09-10 02:34:25,319 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-10 02:34:25,319 INFO L276 IsEmpty]: Start isEmpty. Operand 643 states and 995 transitions. [2019-09-10 02:34:25,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2019-09-10 02:34:25,321 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:34:25,321 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:34:25,321 INFO L418 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:34:25,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:34:25,321 INFO L82 PathProgramCache]: Analyzing trace with hash -1377915425, now seen corresponding path program 1 times [2019-09-10 02:34:25,322 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:34:25,322 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:34:25,322 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:34:25,323 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:34:25,323 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:34:25,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:34:25,429 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-10 02:34:25,429 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:34:25,430 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-10 02:34:25,430 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:34:25,430 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-10 02:34:25,430 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-10 02:34:25,431 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-10 02:34:25,431 INFO L87 Difference]: Start difference. First operand 643 states and 995 transitions. Second operand 5 states. [2019-09-10 02:34:25,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:34:25,489 INFO L93 Difference]: Finished difference Result 645 states and 996 transitions. [2019-09-10 02:34:25,490 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-10 02:34:25,490 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 99 [2019-09-10 02:34:25,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:34:25,494 INFO L225 Difference]: With dead ends: 645 [2019-09-10 02:34:25,495 INFO L226 Difference]: Without dead ends: 643 [2019-09-10 02:34:25,495 INFO L628 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 [2019-09-10 02:34:25,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 643 states. [2019-09-10 02:34:25,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 643 to 643. [2019-09-10 02:34:25,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 643 states. [2019-09-10 02:34:25,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 643 states to 643 states and 994 transitions. [2019-09-10 02:34:25,516 INFO L78 Accepts]: Start accepts. Automaton has 643 states and 994 transitions. Word has length 99 [2019-09-10 02:34:25,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:34:25,517 INFO L475 AbstractCegarLoop]: Abstraction has 643 states and 994 transitions. [2019-09-10 02:34:25,517 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-10 02:34:25,517 INFO L276 IsEmpty]: Start isEmpty. Operand 643 states and 994 transitions. [2019-09-10 02:34:25,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2019-09-10 02:34:25,518 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:34:25,519 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:34:25,519 INFO L418 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:34:25,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:34:25,519 INFO L82 PathProgramCache]: Analyzing trace with hash -231505514, now seen corresponding path program 1 times [2019-09-10 02:34:25,519 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:34:25,520 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:34:25,520 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:34:25,520 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:34:25,521 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:34:25,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:34:25,678 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-10 02:34:25,679 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:34:25,679 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-10 02:34:25,679 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:34:25,679 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-10 02:34:25,680 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-10 02:34:25,680 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-10 02:34:25,680 INFO L87 Difference]: Start difference. First operand 643 states and 994 transitions. Second operand 5 states. [2019-09-10 02:34:25,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:34:25,736 INFO L93 Difference]: Finished difference Result 645 states and 995 transitions. [2019-09-10 02:34:25,737 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-10 02:34:25,737 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 100 [2019-09-10 02:34:25,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:34:25,742 INFO L225 Difference]: With dead ends: 645 [2019-09-10 02:34:25,742 INFO L226 Difference]: Without dead ends: 643 [2019-09-10 02:34:25,742 INFO L628 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 [2019-09-10 02:34:25,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 643 states. [2019-09-10 02:34:25,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 643 to 643. [2019-09-10 02:34:25,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 643 states. [2019-09-10 02:34:25,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 643 states to 643 states and 993 transitions. [2019-09-10 02:34:25,764 INFO L78 Accepts]: Start accepts. Automaton has 643 states and 993 transitions. Word has length 100 [2019-09-10 02:34:25,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:34:25,764 INFO L475 AbstractCegarLoop]: Abstraction has 643 states and 993 transitions. [2019-09-10 02:34:25,764 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-10 02:34:25,764 INFO L276 IsEmpty]: Start isEmpty. Operand 643 states and 993 transitions. [2019-09-10 02:34:25,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2019-09-10 02:34:25,766 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:34:25,766 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:34:25,766 INFO L418 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:34:25,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:34:25,767 INFO L82 PathProgramCache]: Analyzing trace with hash 1500401178, now seen corresponding path program 1 times [2019-09-10 02:34:25,767 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:34:25,767 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:34:25,768 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:34:25,768 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:34:25,768 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:34:25,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:34:25,942 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-10 02:34:25,942 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:34:25,942 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-09-10 02:34:25,943 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:34:25,943 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-10 02:34:25,943 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-10 02:34:25,944 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-09-10 02:34:25,944 INFO L87 Difference]: Start difference. First operand 643 states and 993 transitions. Second operand 8 states. [2019-09-10 02:34:29,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:34:29,547 INFO L93 Difference]: Finished difference Result 1750 states and 2703 transitions. [2019-09-10 02:34:29,547 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-09-10 02:34:29,547 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 101 [2019-09-10 02:34:29,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:34:29,561 INFO L225 Difference]: With dead ends: 1750 [2019-09-10 02:34:29,561 INFO L226 Difference]: Without dead ends: 1750 [2019-09-10 02:34:29,565 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2019-09-10 02:34:29,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1750 states. [2019-09-10 02:34:29,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1750 to 1738. [2019-09-10 02:34:29,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1738 states. [2019-09-10 02:34:29,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1738 states to 1738 states and 2690 transitions. [2019-09-10 02:34:29,629 INFO L78 Accepts]: Start accepts. Automaton has 1738 states and 2690 transitions. Word has length 101 [2019-09-10 02:34:29,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:34:29,630 INFO L475 AbstractCegarLoop]: Abstraction has 1738 states and 2690 transitions. [2019-09-10 02:34:29,630 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-09-10 02:34:29,630 INFO L276 IsEmpty]: Start isEmpty. Operand 1738 states and 2690 transitions. [2019-09-10 02:34:29,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2019-09-10 02:34:29,632 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:34:29,632 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:34:29,632 INFO L418 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:34:29,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:34:29,633 INFO L82 PathProgramCache]: Analyzing trace with hash -2018217190, now seen corresponding path program 1 times [2019-09-10 02:34:29,633 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:34:29,634 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:34:29,634 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:34:29,634 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:34:29,635 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:34:29,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:34:29,838 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-09-10 02:34:29,838 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 02:34:29,838 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 02:34:29,839 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 102 with the following transitions: [2019-09-10 02:34:29,851 INFO L207 CegarAbsIntRunner]: [72], [73], [74], [75], [152], [156], [159], [405], [488], [490], [492], [608], [611], [614], [617], [632], [633], [634], [639], [706], [707], [708], [710], [757], [793], [829], [865], [901], [904], [907], [940], [941], [942], [995], [1000], [1005], [1010], [1015], [1018], [1022], [1207], [1210], [1232], [1372], [1373], [1459], [1462], [1464], [1467], [1493], [1495], [1497], [1500], [1513], [1527], [1541], [1555], [1569], [1643], [1821], [2579], [2580], [2581], [2582], [2583], [2584], [2585], [2586], [2587], [2641], [2642], [2643], [2644], [2645], [2646], [2647], [2648], [2649], [2685], [2686], [2687], [2688], [2693], [2703], [2704], [2713], [2714], [2715], [2721], [2765], [2766], [2767], [2773], [2774], [2775], [2776], [2823], [2824], [2825] [2019-09-10 02:34:29,916 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 02:34:29,916 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 02:34:30,078 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-10 02:34:30,080 INFO L272 AbstractInterpreter]: Visited 2 different actions 2 times. Never merged. Never widened. Performed 153 root evaluator evaluations with a maximum evaluation depth of 0. Performed 153 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 262 variables. [2019-09-10 02:34:30,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:34:30,085 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-09-10 02:34:30,180 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-09-10 02:34:30,181 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-09-10 02:34:30,191 INFO L420 sIntCurrentIteration]: We unified 100 AI predicates to 100 [2019-09-10 02:34:30,191 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-09-10 02:34:30,192 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-10 02:34:30,193 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [11] total 11 [2019-09-10 02:34:30,193 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:34:30,194 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-10 02:34:30,194 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-10 02:34:30,194 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 02:34:30,195 INFO L87 Difference]: Start difference. First operand 1738 states and 2690 transitions. Second operand 2 states. [2019-09-10 02:34:30,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:34:30,195 INFO L93 Difference]: Finished difference Result 2 states and 1 transitions. [2019-09-10 02:34:30,196 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-10 02:34:30,196 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 101 [2019-09-10 02:34:30,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:34:30,196 INFO L225 Difference]: With dead ends: 2 [2019-09-10 02:34:30,197 INFO L226 Difference]: Without dead ends: 0 [2019-09-10 02:34:30,197 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 02:34:30,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-10 02:34:30,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-10 02:34:30,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-10 02:34:30,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-10 02:34:30,198 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 101 [2019-09-10 02:34:30,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:34:30,199 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-10 02:34:30,199 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-10 02:34:30,199 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-10 02:34:30,199 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-10 02:34:30,206 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.09 02:34:30 BoogieIcfgContainer [2019-09-10 02:34:30,206 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-10 02:34:30,210 INFO L168 Benchmark]: Toolchain (without parser) took 11947.98 ms. Allocated memory was 134.2 MB in the beginning and 466.1 MB in the end (delta: 331.9 MB). Free memory was 88.0 MB in the beginning and 373.8 MB in the end (delta: -285.9 MB). Peak memory consumption was 46.0 MB. Max. memory is 7.1 GB. [2019-09-10 02:34:30,212 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 134.2 MB. Free memory was 108.6 MB in the beginning and 108.4 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2019-09-10 02:34:30,214 INFO L168 Benchmark]: CACSL2BoogieTranslator took 959.74 ms. Allocated memory was 134.2 MB in the beginning and 200.8 MB in the end (delta: 66.6 MB). Free memory was 87.8 MB in the beginning and 134.2 MB in the end (delta: -46.4 MB). Peak memory consumption was 35.3 MB. Max. memory is 7.1 GB. [2019-09-10 02:34:30,216 INFO L168 Benchmark]: Boogie Preprocessor took 170.57 ms. Allocated memory is still 200.8 MB. Free memory was 133.5 MB in the beginning and 124.1 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. [2019-09-10 02:34:30,223 INFO L168 Benchmark]: RCFGBuilder took 2352.75 ms. Allocated memory was 200.8 MB in the beginning and 263.2 MB in the end (delta: 62.4 MB). Free memory was 124.1 MB in the beginning and 129.6 MB in the end (delta: -5.5 MB). Peak memory consumption was 86.5 MB. Max. memory is 7.1 GB. [2019-09-10 02:34:30,223 INFO L168 Benchmark]: TraceAbstraction took 8456.93 ms. Allocated memory was 263.2 MB in the beginning and 466.1 MB in the end (delta: 202.9 MB). Free memory was 129.6 MB in the beginning and 373.8 MB in the end (delta: -244.3 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-09-10 02:34:30,232 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 134.2 MB. Free memory was 108.6 MB in the beginning and 108.4 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 959.74 ms. Allocated memory was 134.2 MB in the beginning and 200.8 MB in the end (delta: 66.6 MB). Free memory was 87.8 MB in the beginning and 134.2 MB in the end (delta: -46.4 MB). Peak memory consumption was 35.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 170.57 ms. Allocated memory is still 200.8 MB. Free memory was 133.5 MB in the beginning and 124.1 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 2352.75 ms. Allocated memory was 200.8 MB in the beginning and 263.2 MB in the end (delta: 62.4 MB). Free memory was 124.1 MB in the beginning and 129.6 MB in the end (delta: -5.5 MB). Peak memory consumption was 86.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 8456.93 ms. Allocated memory was 263.2 MB in the beginning and 466.1 MB in the end (delta: 202.9 MB). Free memory was 129.6 MB in the beginning and 373.8 MB in the end (delta: -244.3 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3534]: 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 80 procedures, 965 locations, 1 error locations. SAFE Result, 8.3s OverallTime, 12 OverallIterations, 2 TraceHistogramMax, 4.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 11939 SDtfs, 2323 SDslu, 44522 SDs, 0 SdLazy, 3158 SolverSat, 115 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 184 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1738occurred in iteration=11, 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, 2.32 AbsIntAvgWeakeningVarsNumRemoved, 0.0 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 12 MinimizatonAttempts, 14 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 1164 NumberOfCodeBlocks, 1164 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 1152 ConstructedInterpolants, 0 QuantifiedInterpolants, 144000 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 11 PerfectInterpolantSequences, 34/36 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...