java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -i ../../../trunk/examples/svcomp/product-lines/elevator_spec3_product18.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-10 02:33:36,275 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-10 02:33:36,277 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-10 02:33:36,289 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-10 02:33:36,289 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-10 02:33:36,290 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-10 02:33:36,291 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-10 02:33:36,293 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-10 02:33:36,295 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-10 02:33:36,296 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-10 02:33:36,297 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-10 02:33:36,298 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-10 02:33:36,298 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-10 02:33:36,299 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-10 02:33:36,300 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-10 02:33:36,302 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-10 02:33:36,302 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-10 02:33:36,303 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-10 02:33:36,305 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-10 02:33:36,307 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-10 02:33:36,309 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-10 02:33:36,310 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-10 02:33:36,311 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-10 02:33:36,312 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-10 02:33:36,315 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-10 02:33:36,315 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-10 02:33:36,315 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-10 02:33:36,316 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-10 02:33:36,317 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-10 02:33:36,319 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-10 02:33:36,320 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-10 02:33:36,321 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-10 02:33:36,323 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-10 02:33:36,324 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-10 02:33:36,325 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-10 02:33:36,325 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-10 02:33:36,328 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-10 02:33:36,328 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-10 02:33:36,329 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-10 02:33:36,329 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-10 02:33:36,330 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-10 02:33:36,331 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 02:33:36,346 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-10 02:33:36,346 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-10 02:33:36,346 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-10 02:33:36,346 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-10 02:33:36,347 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-10 02:33:36,347 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-10 02:33:36,347 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-10 02:33:36,348 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-10 02:33:36,348 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-10 02:33:36,348 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-10 02:33:36,349 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-10 02:33:36,349 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-10 02:33:36,349 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-10 02:33:36,349 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-10 02:33:36,350 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-10 02:33:36,350 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-10 02:33:36,350 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-10 02:33:36,350 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-10 02:33:36,351 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-10 02:33:36,351 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-10 02:33:36,351 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-10 02:33:36,351 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-10 02:33:36,352 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-10 02:33:36,352 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 02:33:36,352 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-10 02:33:36,352 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-10 02:33:36,353 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-10 02:33:36,353 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-10 02:33:36,353 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-10 02:33:36,353 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-10 02:33:36,396 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-10 02:33:36,411 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-10 02:33:36,416 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-10 02:33:36,417 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-10 02:33:36,418 INFO L275 PluginConnector]: CDTParser initialized [2019-09-10 02:33:36,420 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec3_product18.cil.c [2019-09-10 02:33:36,486 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/86d4359b3/29b6553204d34b30bd507756117b6ceb/FLAGea0be9cf2 [2019-09-10 02:33:37,153 INFO L306 CDTParser]: Found 1 translation units. [2019-09-10 02:33:37,154 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec3_product18.cil.c [2019-09-10 02:33:37,199 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/86d4359b3/29b6553204d34b30bd507756117b6ceb/FLAGea0be9cf2 [2019-09-10 02:33:37,337 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/86d4359b3/29b6553204d34b30bd507756117b6ceb [2019-09-10 02:33:37,350 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-10 02:33:37,352 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-10 02:33:37,357 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-10 02:33:37,358 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-10 02:33:37,362 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-10 02:33:37,363 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 02:33:37" (1/1) ... [2019-09-10 02:33:37,367 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@672fd1a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:33:37, skipping insertion in model container [2019-09-10 02:33:37,367 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 02:33:37" (1/1) ... [2019-09-10 02:33:37,377 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-10 02:33:37,471 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-10 02:33:38,210 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 02:33:38,234 INFO L188 MainTranslator]: Completed pre-run [2019-09-10 02:33:38,376 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 02:33:38,480 INFO L192 MainTranslator]: Completed translation [2019-09-10 02:33:38,481 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:33:38 WrapperNode [2019-09-10 02:33:38,481 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-10 02:33:38,482 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-10 02:33:38,483 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-10 02:33:38,483 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-10 02:33:38,504 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:33:38" (1/1) ... [2019-09-10 02:33:38,504 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:33:38" (1/1) ... [2019-09-10 02:33:38,539 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:33:38" (1/1) ... [2019-09-10 02:33:38,540 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:33:38" (1/1) ... [2019-09-10 02:33:38,632 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:33:38" (1/1) ... [2019-09-10 02:33:38,673 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:33:38" (1/1) ... [2019-09-10 02:33:38,695 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:33:38" (1/1) ... [2019-09-10 02:33:38,708 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-10 02:33:38,709 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-10 02:33:38,709 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-10 02:33:38,709 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-10 02:33:38,710 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:33:38" (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 02:33:38,788 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-10 02:33:38,789 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-10 02:33:38,789 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-10 02:33:38,789 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-10 02:33:38,789 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-10 02:33:38,790 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-10 02:33:38,790 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-10 02:33:38,790 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-10 02:33:38,790 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-10 02:33:38,790 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-10 02:33:38,792 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-10 02:33:38,793 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-10 02:33:38,793 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-10 02:33:38,794 INFO L138 BoogieDeclarations]: Found implementation of procedure initFloors [2019-09-10 02:33:38,794 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2019-09-10 02:33:38,795 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2019-09-10 02:33:38,795 INFO L138 BoogieDeclarations]: Found implementation of procedure callOnFloor [2019-09-10 02:33:38,796 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2019-09-10 02:33:38,796 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2019-09-10 02:33:38,796 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2019-09-10 02:33:38,796 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2019-09-10 02:33:38,797 INFO L138 BoogieDeclarations]: Found implementation of procedure get_nondetMinMax07 [2019-09-10 02:33:38,797 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2019-09-10 02:33:38,797 INFO L138 BoogieDeclarations]: Found implementation of procedure aliceCall [2019-09-10 02:33:38,797 INFO L138 BoogieDeclarations]: Found implementation of procedure angelinaCall [2019-09-10 02:33:38,798 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckCall [2019-09-10 02:33:38,798 INFO L138 BoogieDeclarations]: Found implementation of procedure monicaCall [2019-09-10 02:33:38,798 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2019-09-10 02:33:38,799 INFO L138 BoogieDeclarations]: Found implementation of procedure threeTS [2019-09-10 02:33:38,799 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-10 02:33:38,799 INFO L138 BoogieDeclarations]: Found implementation of procedure randomSequenceOfActions [2019-09-10 02:33:38,799 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest_Simple [2019-09-10 02:33:38,799 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification1 [2019-09-10 02:33:38,799 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-09-10 02:33:38,800 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification3 [2019-09-10 02:33:38,800 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-10 02:33:38,800 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-09-10 02:33:38,800 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-10 02:33:38,800 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-10 02:33:38,800 INFO L138 BoogieDeclarations]: Found implementation of procedure initTopDown [2019-09-10 02:33:38,801 INFO L138 BoogieDeclarations]: Found implementation of procedure initBottomUp [2019-09-10 02:33:38,801 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2019-09-10 02:33:38,801 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator__wrappee__base [2019-09-10 02:33:38,802 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2019-09-10 02:33:38,802 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator__wrappee__base [2019-09-10 02:33:38,802 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2019-09-10 02:33:38,802 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2019-09-10 02:33:38,802 INFO L138 BoogieDeclarations]: Found implementation of procedure resetFloorButton [2019-09-10 02:33:38,803 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2019-09-10 02:33:38,803 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2019-09-10 02:33:38,803 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2019-09-10 02:33:38,803 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentHeading [2019-09-10 02:33:38,803 INFO L138 BoogieDeclarations]: Found implementation of procedure isEmpty [2019-09-10 02:33:38,803 INFO L138 BoogieDeclarations]: Found implementation of procedure anyStopRequested [2019-09-10 02:33:38,805 INFO L138 BoogieDeclarations]: Found implementation of procedure isIdle [2019-09-10 02:33:38,805 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2019-09-10 02:33:38,805 INFO L138 BoogieDeclarations]: Found implementation of procedure isAnyLiftButtonPressed [2019-09-10 02:33:38,806 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2019-09-10 02:33:38,806 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor [2019-09-10 02:33:38,806 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2019-09-10 02:33:38,806 INFO L138 BoogieDeclarations]: Found implementation of procedure processWaitingOnFloor [2019-09-10 02:33:38,806 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift__wrappee__weight [2019-09-10 02:33:38,807 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-09-10 02:33:38,807 INFO L138 BoogieDeclarations]: Found implementation of procedure printState__wrappee__weight [2019-09-10 02:33:38,809 INFO L138 BoogieDeclarations]: Found implementation of procedure printState [2019-09-10 02:33:38,810 INFO L138 BoogieDeclarations]: Found implementation of procedure existInLiftCallsInDirection [2019-09-10 02:33:38,810 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2019-09-10 02:33:38,810 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2019-09-10 02:33:38,810 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2019-09-10 02:33:38,811 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2019-09-10 02:33:38,811 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__2 [2019-09-10 02:33:38,811 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-10 02:33:38,811 INFO L138 BoogieDeclarations]: Found implementation of procedure spec1 [2019-09-10 02:33:38,812 INFO L138 BoogieDeclarations]: Found implementation of procedure spec14 [2019-09-10 02:33:38,812 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-10 02:33:38,812 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-10 02:33:38,812 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-10 02:33:38,813 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-10 02:33:38,813 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-10 02:33:38,813 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-10 02:33:38,813 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-10 02:33:38,814 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-10 02:33:38,814 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-10 02:33:38,814 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-10 02:33:38,814 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-10 02:33:38,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-10 02:33:38,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-10 02:33:38,815 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-10 02:33:38,815 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-10 02:33:38,816 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-10 02:33:38,816 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-10 02:33:38,816 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-10 02:33:38,816 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-10 02:33:38,816 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-10 02:33:38,817 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-10 02:33:38,817 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-10 02:33:38,817 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-10 02:33:38,817 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2019-09-10 02:33:38,817 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2019-09-10 02:33:38,817 INFO L130 BoogieDeclarations]: Found specification of procedure callOnFloor [2019-09-10 02:33:38,818 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2019-09-10 02:33:38,818 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2019-09-10 02:33:38,818 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2019-09-10 02:33:38,818 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2019-09-10 02:33:38,818 INFO L130 BoogieDeclarations]: Found specification of procedure initFloors [2019-09-10 02:33:38,819 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-09-10 02:33:38,819 INFO L130 BoogieDeclarations]: Found specification of procedure get_nondetMinMax07 [2019-09-10 02:33:38,819 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2019-09-10 02:33:38,819 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2019-09-10 02:33:38,819 INFO L130 BoogieDeclarations]: Found specification of procedure aliceCall [2019-09-10 02:33:38,819 INFO L130 BoogieDeclarations]: Found specification of procedure angelinaCall [2019-09-10 02:33:38,820 INFO L130 BoogieDeclarations]: Found specification of procedure chuckCall [2019-09-10 02:33:38,820 INFO L130 BoogieDeclarations]: Found specification of procedure monicaCall [2019-09-10 02:33:38,820 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2019-09-10 02:33:38,820 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-09-10 02:33:38,821 INFO L130 BoogieDeclarations]: Found specification of procedure threeTS [2019-09-10 02:33:38,821 INFO L130 BoogieDeclarations]: Found specification of procedure isIdle [2019-09-10 02:33:38,821 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2019-09-10 02:33:38,822 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-10 02:33:38,822 INFO L130 BoogieDeclarations]: Found specification of procedure initTopDown [2019-09-10 02:33:38,822 INFO L130 BoogieDeclarations]: Found specification of procedure initBottomUp [2019-09-10 02:33:38,823 INFO L130 BoogieDeclarations]: Found specification of procedure randomSequenceOfActions [2019-09-10 02:33:38,823 INFO L130 BoogieDeclarations]: Found specification of procedure runTest_Simple [2019-09-10 02:33:38,824 INFO L130 BoogieDeclarations]: Found specification of procedure Specification1 [2019-09-10 02:33:38,824 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-09-10 02:33:38,824 INFO L130 BoogieDeclarations]: Found specification of procedure Specification3 [2019-09-10 02:33:38,824 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-10 02:33:38,825 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-10 02:33:38,825 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-09-10 02:33:38,825 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-10 02:33:38,825 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-10 02:33:38,826 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-10 02:33:38,826 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2019-09-10 02:33:38,826 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2019-09-10 02:33:38,826 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2019-09-10 02:33:38,826 INFO L130 BoogieDeclarations]: Found specification of procedure printState [2019-09-10 02:33:38,826 INFO L130 BoogieDeclarations]: Found specification of procedure isEmpty [2019-09-10 02:33:38,827 INFO L130 BoogieDeclarations]: Found specification of procedure isAnyLiftButtonPressed [2019-09-10 02:33:38,827 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2019-09-10 02:33:38,830 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2019-09-10 02:33:38,831 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2019-09-10 02:33:38,831 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator__wrappee__base [2019-09-10 02:33:38,831 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator__wrappee__base [2019-09-10 02:33:38,838 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2019-09-10 02:33:38,839 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2019-09-10 02:33:38,839 INFO L130 BoogieDeclarations]: Found specification of procedure resetFloorButton [2019-09-10 02:33:38,839 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentHeading [2019-09-10 02:33:38,839 INFO L130 BoogieDeclarations]: Found specification of procedure anyStopRequested [2019-09-10 02:33:38,839 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2019-09-10 02:33:38,840 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2019-09-10 02:33:38,840 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor [2019-09-10 02:33:38,840 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2019-09-10 02:33:38,840 INFO L130 BoogieDeclarations]: Found specification of procedure processWaitingOnFloor [2019-09-10 02:33:38,840 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift__wrappee__weight [2019-09-10 02:33:38,840 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2019-09-10 02:33:38,840 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__2 [2019-09-10 02:33:38,841 INFO L130 BoogieDeclarations]: Found specification of procedure printState__wrappee__weight [2019-09-10 02:33:38,841 INFO L130 BoogieDeclarations]: Found specification of procedure existInLiftCallsInDirection [2019-09-10 02:33:38,841 INFO L130 BoogieDeclarations]: Found specification of procedure spec1 [2019-09-10 02:33:38,841 INFO L130 BoogieDeclarations]: Found specification of procedure spec14 [2019-09-10 02:33:38,841 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-10 02:33:38,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-10 02:33:38,841 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-10 02:33:40,891 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-10 02:33:40,891 INFO L283 CfgBuilder]: Removed 10 assume(true) statements. [2019-09-10 02:33:40,893 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 02:33:40 BoogieIcfgContainer [2019-09-10 02:33:40,893 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-10 02:33:40,894 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-10 02:33:40,894 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-10 02:33:40,898 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-10 02:33:40,898 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 02:33:37" (1/3) ... [2019-09-10 02:33:40,899 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e8e2e14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 02:33:40, skipping insertion in model container [2019-09-10 02:33:40,899 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:33:38" (2/3) ... [2019-09-10 02:33:40,899 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e8e2e14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 02:33:40, skipping insertion in model container [2019-09-10 02:33:40,900 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 02:33:40" (3/3) ... [2019-09-10 02:33:40,901 INFO L109 eAbstractionObserver]: Analyzing ICFG elevator_spec3_product18.cil.c [2019-09-10 02:33:40,911 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-10 02:33:40,922 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-10 02:33:40,939 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-10 02:33:40,974 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-10 02:33:40,975 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-10 02:33:40,975 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-10 02:33:40,975 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-10 02:33:40,975 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-10 02:33:40,975 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-10 02:33:40,975 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-10 02:33:40,975 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-10 02:33:41,017 INFO L276 IsEmpty]: Start isEmpty. Operand 781 states. [2019-09-10 02:33:41,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2019-09-10 02:33:41,050 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:33:41,052 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 02:33:41,055 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:33:41,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:33:41,061 INFO L82 PathProgramCache]: Analyzing trace with hash 1366421017, now seen corresponding path program 1 times [2019-09-10 02:33:41,063 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:33:41,115 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:33:41,116 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:33:41,116 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:33:41,116 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:33:41,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:33:41,772 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 02:33:41,774 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:33:41,775 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-10 02:33:41,775 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:33:41,780 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-10 02:33:41,795 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-10 02:33:41,796 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-10 02:33:41,798 INFO L87 Difference]: Start difference. First operand 781 states. Second operand 7 states. [2019-09-10 02:33:42,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:33:42,071 INFO L93 Difference]: Finished difference Result 633 states and 1008 transitions. [2019-09-10 02:33:42,072 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-10 02:33:42,074 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 93 [2019-09-10 02:33:42,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:33:42,108 INFO L225 Difference]: With dead ends: 633 [2019-09-10 02:33:42,108 INFO L226 Difference]: Without dead ends: 622 [2019-09-10 02:33:42,113 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 02:33:42,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 622 states. [2019-09-10 02:33:42,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 622 to 620. [2019-09-10 02:33:42,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 620 states. [2019-09-10 02:33:42,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 620 states to 620 states and 991 transitions. [2019-09-10 02:33:42,235 INFO L78 Accepts]: Start accepts. Automaton has 620 states and 991 transitions. Word has length 93 [2019-09-10 02:33:42,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:33:42,236 INFO L475 AbstractCegarLoop]: Abstraction has 620 states and 991 transitions. [2019-09-10 02:33:42,236 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-10 02:33:42,236 INFO L276 IsEmpty]: Start isEmpty. Operand 620 states and 991 transitions. [2019-09-10 02:33:42,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2019-09-10 02:33:42,242 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:33:42,243 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 02:33:42,243 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:33:42,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:33:42,243 INFO L82 PathProgramCache]: Analyzing trace with hash 1643390832, now seen corresponding path program 1 times [2019-09-10 02:33:42,244 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:33:42,244 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:33:42,245 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:33:42,245 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:33:42,245 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:33:42,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:33:42,460 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 02:33:42,460 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:33:42,460 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-10 02:33:42,460 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:33:42,462 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-10 02:33:42,463 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-10 02:33:42,463 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-10 02:33:42,463 INFO L87 Difference]: Start difference. First operand 620 states and 991 transitions. Second operand 4 states. [2019-09-10 02:33:42,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:33:42,525 INFO L93 Difference]: Finished difference Result 618 states and 986 transitions. [2019-09-10 02:33:42,526 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-09-10 02:33:42,526 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 94 [2019-09-10 02:33:42,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:33:42,531 INFO L225 Difference]: With dead ends: 618 [2019-09-10 02:33:42,532 INFO L226 Difference]: Without dead ends: 602 [2019-09-10 02:33:42,533 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 02:33:42,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 602 states. [2019-09-10 02:33:42,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 602 to 602. [2019-09-10 02:33:42,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 602 states. [2019-09-10 02:33:42,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 602 states to 602 states and 958 transitions. [2019-09-10 02:33:42,571 INFO L78 Accepts]: Start accepts. Automaton has 602 states and 958 transitions. Word has length 94 [2019-09-10 02:33:42,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:33:42,573 INFO L475 AbstractCegarLoop]: Abstraction has 602 states and 958 transitions. [2019-09-10 02:33:42,573 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-10 02:33:42,573 INFO L276 IsEmpty]: Start isEmpty. Operand 602 states and 958 transitions. [2019-09-10 02:33:42,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2019-09-10 02:33:42,578 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:33:42,579 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 02:33:42,580 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:33:42,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:33:42,583 INFO L82 PathProgramCache]: Analyzing trace with hash 1305237044, now seen corresponding path program 1 times [2019-09-10 02:33:42,583 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:33:42,585 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:33:42,586 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:33:42,587 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:33:42,587 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:33:42,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:33:42,782 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 02:33:42,782 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:33:42,782 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-10 02:33:42,782 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:33:42,783 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-10 02:33:42,783 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-10 02:33:42,783 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-10 02:33:42,784 INFO L87 Difference]: Start difference. First operand 602 states and 958 transitions. Second operand 7 states. [2019-09-10 02:33:42,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:33:42,917 INFO L93 Difference]: Finished difference Result 605 states and 961 transitions. [2019-09-10 02:33:42,918 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-10 02:33:42,918 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 94 [2019-09-10 02:33:42,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:33:42,924 INFO L225 Difference]: With dead ends: 605 [2019-09-10 02:33:42,925 INFO L226 Difference]: Without dead ends: 596 [2019-09-10 02:33:42,925 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 02:33:42,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 596 states. [2019-09-10 02:33:42,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 596 to 596. [2019-09-10 02:33:42,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 596 states. [2019-09-10 02:33:42,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 596 states to 596 states and 945 transitions. [2019-09-10 02:33:42,959 INFO L78 Accepts]: Start accepts. Automaton has 596 states and 945 transitions. Word has length 94 [2019-09-10 02:33:42,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:33:42,960 INFO L475 AbstractCegarLoop]: Abstraction has 596 states and 945 transitions. [2019-09-10 02:33:42,960 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-10 02:33:42,960 INFO L276 IsEmpty]: Start isEmpty. Operand 596 states and 945 transitions. [2019-09-10 02:33:42,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2019-09-10 02:33:42,967 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:33:42,967 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 02:33:42,969 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:33:42,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:33:42,969 INFO L82 PathProgramCache]: Analyzing trace with hash 1548689565, now seen corresponding path program 1 times [2019-09-10 02:33:42,969 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:33:42,970 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:33:42,970 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:33:42,970 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:33:42,970 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:33:43,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:33:43,176 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 02:33:43,176 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:33:43,176 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-10 02:33:43,177 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:33:43,177 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-10 02:33:43,177 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-10 02:33:43,178 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-10 02:33:43,178 INFO L87 Difference]: Start difference. First operand 596 states and 945 transitions. Second operand 7 states. [2019-09-10 02:33:43,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:33:43,265 INFO L93 Difference]: Finished difference Result 599 states and 948 transitions. [2019-09-10 02:33:43,265 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-10 02:33:43,266 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 95 [2019-09-10 02:33:43,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:33:43,270 INFO L225 Difference]: With dead ends: 599 [2019-09-10 02:33:43,271 INFO L226 Difference]: Without dead ends: 590 [2019-09-10 02:33:43,271 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 02:33:43,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 590 states. [2019-09-10 02:33:43,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 590 to 590. [2019-09-10 02:33:43,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 590 states. [2019-09-10 02:33:43,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 590 states to 590 states and 932 transitions. [2019-09-10 02:33:43,294 INFO L78 Accepts]: Start accepts. Automaton has 590 states and 932 transitions. Word has length 95 [2019-09-10 02:33:43,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:33:43,294 INFO L475 AbstractCegarLoop]: Abstraction has 590 states and 932 transitions. [2019-09-10 02:33:43,294 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-10 02:33:43,295 INFO L276 IsEmpty]: Start isEmpty. Operand 590 states and 932 transitions. [2019-09-10 02:33:43,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2019-09-10 02:33:43,296 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:33:43,296 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 02:33:43,297 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:33:43,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:33:43,297 INFO L82 PathProgramCache]: Analyzing trace with hash -1649028488, now seen corresponding path program 1 times [2019-09-10 02:33:43,297 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:33:43,298 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:33:43,298 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:33:43,298 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:33:43,299 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:33:43,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:33:43,443 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 02:33:43,444 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:33:43,444 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-10 02:33:43,444 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:33:43,444 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-10 02:33:43,445 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-10 02:33:43,445 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-10 02:33:43,445 INFO L87 Difference]: Start difference. First operand 590 states and 932 transitions. Second operand 7 states. [2019-09-10 02:33:43,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:33:43,534 INFO L93 Difference]: Finished difference Result 593 states and 935 transitions. [2019-09-10 02:33:43,534 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-10 02:33:43,534 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 96 [2019-09-10 02:33:43,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:33:43,539 INFO L225 Difference]: With dead ends: 593 [2019-09-10 02:33:43,539 INFO L226 Difference]: Without dead ends: 584 [2019-09-10 02:33:43,539 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 02:33:43,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 584 states. [2019-09-10 02:33:43,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 584 to 584. [2019-09-10 02:33:43,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 584 states. [2019-09-10 02:33:43,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 584 states to 584 states and 919 transitions. [2019-09-10 02:33:43,560 INFO L78 Accepts]: Start accepts. Automaton has 584 states and 919 transitions. Word has length 96 [2019-09-10 02:33:43,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:33:43,561 INFO L475 AbstractCegarLoop]: Abstraction has 584 states and 919 transitions. [2019-09-10 02:33:43,561 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-10 02:33:43,561 INFO L276 IsEmpty]: Start isEmpty. Operand 584 states and 919 transitions. [2019-09-10 02:33:43,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2019-09-10 02:33:43,563 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:33:43,563 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 02:33:43,564 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:33:43,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:33:43,564 INFO L82 PathProgramCache]: Analyzing trace with hash -260086663, now seen corresponding path program 1 times [2019-09-10 02:33:43,564 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:33:43,565 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:33:43,565 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:33:43,565 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:33:43,566 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:33:43,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:33:43,717 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 02:33:43,718 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:33:43,718 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-10 02:33:43,718 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:33:43,719 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-10 02:33:43,719 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-10 02:33:43,719 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-10 02:33:43,719 INFO L87 Difference]: Start difference. First operand 584 states and 919 transitions. Second operand 7 states. [2019-09-10 02:33:43,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:33:43,797 INFO L93 Difference]: Finished difference Result 587 states and 922 transitions. [2019-09-10 02:33:43,797 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-10 02:33:43,797 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 96 [2019-09-10 02:33:43,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:33:43,802 INFO L225 Difference]: With dead ends: 587 [2019-09-10 02:33:43,803 INFO L226 Difference]: Without dead ends: 584 [2019-09-10 02:33:43,803 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 02:33:43,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 584 states. [2019-09-10 02:33:43,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 584 to 584. [2019-09-10 02:33:43,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 584 states. [2019-09-10 02:33:43,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 584 states to 584 states and 918 transitions. [2019-09-10 02:33:43,826 INFO L78 Accepts]: Start accepts. Automaton has 584 states and 918 transitions. Word has length 96 [2019-09-10 02:33:43,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:33:43,827 INFO L475 AbstractCegarLoop]: Abstraction has 584 states and 918 transitions. [2019-09-10 02:33:43,827 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-10 02:33:43,827 INFO L276 IsEmpty]: Start isEmpty. Operand 584 states and 918 transitions. [2019-09-10 02:33:43,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2019-09-10 02:33:43,829 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:33:43,829 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 02:33:43,829 INFO L418 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:33:43,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:33:43,830 INFO L82 PathProgramCache]: Analyzing trace with hash 146115361, now seen corresponding path program 1 times [2019-09-10 02:33:43,830 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:33:43,831 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:33:43,831 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:33:43,831 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:33:43,831 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:33:43,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:33:44,008 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 02:33:44,008 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:33:44,008 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-10 02:33:44,008 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:33:44,009 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-10 02:33:44,009 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-10 02:33:44,010 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-10 02:33:44,010 INFO L87 Difference]: Start difference. First operand 584 states and 918 transitions. Second operand 5 states. [2019-09-10 02:33:44,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:33:44,070 INFO L93 Difference]: Finished difference Result 586 states and 919 transitions. [2019-09-10 02:33:44,070 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-10 02:33:44,071 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 97 [2019-09-10 02:33:44,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:33:44,075 INFO L225 Difference]: With dead ends: 586 [2019-09-10 02:33:44,075 INFO L226 Difference]: Without dead ends: 584 [2019-09-10 02:33:44,076 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 02:33:44,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 584 states. [2019-09-10 02:33:44,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 584 to 584. [2019-09-10 02:33:44,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 584 states. [2019-09-10 02:33:44,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 584 states to 584 states and 917 transitions. [2019-09-10 02:33:44,099 INFO L78 Accepts]: Start accepts. Automaton has 584 states and 917 transitions. Word has length 97 [2019-09-10 02:33:44,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:33:44,100 INFO L475 AbstractCegarLoop]: Abstraction has 584 states and 917 transitions. [2019-09-10 02:33:44,100 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-10 02:33:44,100 INFO L276 IsEmpty]: Start isEmpty. Operand 584 states and 917 transitions. [2019-09-10 02:33:44,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2019-09-10 02:33:44,102 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:33:44,102 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 02:33:44,103 INFO L418 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:33:44,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:33:44,103 INFO L82 PathProgramCache]: Analyzing trace with hash -1759564154, now seen corresponding path program 1 times [2019-09-10 02:33:44,103 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:33:44,104 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:33:44,104 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:33:44,104 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:33:44,105 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:33:44,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:33:44,226 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 02:33:44,227 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:33:44,227 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-10 02:33:44,227 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:33:44,228 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-10 02:33:44,228 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-10 02:33:44,228 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-10 02:33:44,229 INFO L87 Difference]: Start difference. First operand 584 states and 917 transitions. Second operand 5 states. [2019-09-10 02:33:44,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:33:44,291 INFO L93 Difference]: Finished difference Result 586 states and 918 transitions. [2019-09-10 02:33:44,292 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-10 02:33:44,292 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 98 [2019-09-10 02:33:44,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:33:44,298 INFO L225 Difference]: With dead ends: 586 [2019-09-10 02:33:44,298 INFO L226 Difference]: Without dead ends: 584 [2019-09-10 02:33:44,299 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 02:33:44,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 584 states. [2019-09-10 02:33:44,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 584 to 584. [2019-09-10 02:33:44,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 584 states. [2019-09-10 02:33:44,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 584 states to 584 states and 916 transitions. [2019-09-10 02:33:44,320 INFO L78 Accepts]: Start accepts. Automaton has 584 states and 916 transitions. Word has length 98 [2019-09-10 02:33:44,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:33:44,320 INFO L475 AbstractCegarLoop]: Abstraction has 584 states and 916 transitions. [2019-09-10 02:33:44,320 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-10 02:33:44,320 INFO L276 IsEmpty]: Start isEmpty. Operand 584 states and 916 transitions. [2019-09-10 02:33:44,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2019-09-10 02:33:44,322 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:33:44,323 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 02:33:44,323 INFO L418 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:33:44,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:33:44,327 INFO L82 PathProgramCache]: Analyzing trace with hash -153149156, now seen corresponding path program 1 times [2019-09-10 02:33:44,327 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:33:44,327 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:33:44,328 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:33:44,328 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:33:44,328 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:33:44,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:33:44,447 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 02:33:44,447 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:33:44,447 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-10 02:33:44,447 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:33:44,448 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-10 02:33:44,448 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-10 02:33:44,448 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-10 02:33:44,449 INFO L87 Difference]: Start difference. First operand 584 states and 916 transitions. Second operand 5 states. [2019-09-10 02:33:44,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:33:44,526 INFO L93 Difference]: Finished difference Result 586 states and 917 transitions. [2019-09-10 02:33:44,526 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-10 02:33:44,527 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 99 [2019-09-10 02:33:44,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:33:44,532 INFO L225 Difference]: With dead ends: 586 [2019-09-10 02:33:44,533 INFO L226 Difference]: Without dead ends: 584 [2019-09-10 02:33:44,535 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 02:33:44,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 584 states. [2019-09-10 02:33:44,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 584 to 584. [2019-09-10 02:33:44,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 584 states. [2019-09-10 02:33:44,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 584 states to 584 states and 915 transitions. [2019-09-10 02:33:44,562 INFO L78 Accepts]: Start accepts. Automaton has 584 states and 915 transitions. Word has length 99 [2019-09-10 02:33:44,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:33:44,563 INFO L475 AbstractCegarLoop]: Abstraction has 584 states and 915 transitions. [2019-09-10 02:33:44,563 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-10 02:33:44,564 INFO L276 IsEmpty]: Start isEmpty. Operand 584 states and 915 transitions. [2019-09-10 02:33:44,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2019-09-10 02:33:44,568 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:33:44,568 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 02:33:44,569 INFO L418 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:33:44,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:33:44,569 INFO L82 PathProgramCache]: Analyzing trace with hash -1340953951, now seen corresponding path program 1 times [2019-09-10 02:33:44,569 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:33:44,575 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:33:44,575 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:33:44,575 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:33:44,576 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:33:44,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:33:44,749 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 02:33:44,749 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:33:44,749 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-10 02:33:44,749 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:33:44,750 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-10 02:33:44,750 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-10 02:33:44,750 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-10 02:33:44,751 INFO L87 Difference]: Start difference. First operand 584 states and 915 transitions. Second operand 5 states. [2019-09-10 02:33:44,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:33:44,814 INFO L93 Difference]: Finished difference Result 586 states and 916 transitions. [2019-09-10 02:33:44,814 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-10 02:33:44,814 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 100 [2019-09-10 02:33:44,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:33:44,818 INFO L225 Difference]: With dead ends: 586 [2019-09-10 02:33:44,819 INFO L226 Difference]: Without dead ends: 584 [2019-09-10 02:33:44,819 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 02:33:44,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 584 states. [2019-09-10 02:33:44,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 584 to 584. [2019-09-10 02:33:44,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 584 states. [2019-09-10 02:33:44,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 584 states to 584 states and 914 transitions. [2019-09-10 02:33:44,838 INFO L78 Accepts]: Start accepts. Automaton has 584 states and 914 transitions. Word has length 100 [2019-09-10 02:33:44,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:33:44,839 INFO L475 AbstractCegarLoop]: Abstraction has 584 states and 914 transitions. [2019-09-10 02:33:44,839 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-10 02:33:44,839 INFO L276 IsEmpty]: Start isEmpty. Operand 584 states and 914 transitions. [2019-09-10 02:33:44,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2019-09-10 02:33:44,841 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:33:44,841 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 02:33:44,841 INFO L418 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:33:44,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:33:44,842 INFO L82 PathProgramCache]: Analyzing trace with hash -1311064363, now seen corresponding path program 1 times [2019-09-10 02:33:44,842 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:33:44,843 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:33:44,843 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:33:44,844 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:33:44,844 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:33:44,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:33:44,998 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 02:33:44,999 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:33:44,999 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-09-10 02:33:44,999 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:33:45,000 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-09-10 02:33:45,000 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-09-10 02:33:45,000 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-09-10 02:33:45,000 INFO L87 Difference]: Start difference. First operand 584 states and 914 transitions. Second operand 9 states. [2019-09-10 02:33:45,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:33:45,119 INFO L93 Difference]: Finished difference Result 588 states and 917 transitions. [2019-09-10 02:33:45,120 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-09-10 02:33:45,120 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 101 [2019-09-10 02:33:45,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:33:45,125 INFO L225 Difference]: With dead ends: 588 [2019-09-10 02:33:45,125 INFO L226 Difference]: Without dead ends: 584 [2019-09-10 02:33:45,126 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2019-09-10 02:33:45,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 584 states. [2019-09-10 02:33:45,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 584 to 584. [2019-09-10 02:33:45,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 584 states. [2019-09-10 02:33:45,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 584 states to 584 states and 913 transitions. [2019-09-10 02:33:45,151 INFO L78 Accepts]: Start accepts. Automaton has 584 states and 913 transitions. Word has length 101 [2019-09-10 02:33:45,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:33:45,152 INFO L475 AbstractCegarLoop]: Abstraction has 584 states and 913 transitions. [2019-09-10 02:33:45,153 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-09-10 02:33:45,153 INFO L276 IsEmpty]: Start isEmpty. Operand 584 states and 913 transitions. [2019-09-10 02:33:45,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2019-09-10 02:33:45,154 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:33:45,154 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 02:33:45,156 INFO L418 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:33:45,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:33:45,156 INFO L82 PathProgramCache]: Analyzing trace with hash 1044740887, now seen corresponding path program 1 times [2019-09-10 02:33:45,156 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:33:45,157 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:33:45,157 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:33:45,157 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:33:45,157 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:33:45,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:33:45,360 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 02:33:45,360 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:33:45,360 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-09-10 02:33:45,360 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:33:45,361 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-10 02:33:45,361 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-10 02:33:45,362 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-09-10 02:33:45,362 INFO L87 Difference]: Start difference. First operand 584 states and 913 transitions. Second operand 8 states. [2019-09-10 02:33:48,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:33:48,821 INFO L93 Difference]: Finished difference Result 1573 states and 2459 transitions. [2019-09-10 02:33:48,821 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-09-10 02:33:48,821 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 101 [2019-09-10 02:33:48,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:33:48,835 INFO L225 Difference]: With dead ends: 1573 [2019-09-10 02:33:48,835 INFO L226 Difference]: Without dead ends: 1573 [2019-09-10 02:33:48,835 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2019-09-10 02:33:48,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1573 states. [2019-09-10 02:33:48,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1573 to 1561. [2019-09-10 02:33:48,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1561 states. [2019-09-10 02:33:48,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1561 states to 1561 states and 2446 transitions. [2019-09-10 02:33:48,900 INFO L78 Accepts]: Start accepts. Automaton has 1561 states and 2446 transitions. Word has length 101 [2019-09-10 02:33:48,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:33:48,900 INFO L475 AbstractCegarLoop]: Abstraction has 1561 states and 2446 transitions. [2019-09-10 02:33:48,901 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-09-10 02:33:48,901 INFO L276 IsEmpty]: Start isEmpty. Operand 1561 states and 2446 transitions. [2019-09-10 02:33:48,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2019-09-10 02:33:48,902 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:33:48,902 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 02:33:48,902 INFO L418 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:33:48,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:33:48,903 INFO L82 PathProgramCache]: Analyzing trace with hash 1821089815, now seen corresponding path program 1 times [2019-09-10 02:33:48,903 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:33:48,904 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:33:48,904 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:33:48,905 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:33:48,905 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:33:48,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:33:49,089 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 02:33:49,089 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 02:33:49,089 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 02:33:49,091 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 102 with the following transitions: [2019-09-10 02:33:49,093 INFO L207 CegarAbsIntRunner]: [55], [56], [62], [63], [140], [144], [147], [467], [846], [848], [850], [926], [929], [932], [935], [990], [991], [992], [997], [1064], [1065], [1066], [1068], [1111], [1147], [1183], [1219], [1255], [1258], [1261], [1294], [1295], [1296], [1303], [1308], [1313], [1318], [1323], [1326], [1330], [1559], [1562], [1584], [1853], [1854], [1942], [1945], [1947], [1950], [1974], [1976], [1978], [1981], [1994], [2008], [2022], [2036], [2050], [2124], [2302], [2507], [2508], [2509], [2510], [2511], [2512], [2513], [2514], [2515], [2581], [2582], [2583], [2584], [2585], [2586], [2587], [2588], [2589], [2617], [2618], [2619], [2620], [2625], [2643], [2644], [2649], [2650], [2651], [2657], [2745], [2746], [2747], [2753], [2754], [2755], [2756], [2781], [2782], [2783] [2019-09-10 02:33:49,149 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 02:33:49,149 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 02:33:49,261 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-10 02:33:49,263 INFO L272 AbstractInterpreter]: Visited 2 different actions 2 times. Never merged. Never widened. Performed 135 root evaluator evaluations with a maximum evaluation depth of 0. Performed 135 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 260 variables. [2019-09-10 02:33:49,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:33:49,268 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-09-10 02:33:49,315 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-09-10 02:33:49,315 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-09-10 02:33:49,318 INFO L420 sIntCurrentIteration]: We unified 100 AI predicates to 100 [2019-09-10 02:33:49,319 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-09-10 02:33:49,319 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-10 02:33:49,320 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [11] total 11 [2019-09-10 02:33:49,320 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:33:49,320 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-10 02:33:49,320 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-10 02:33:49,321 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 02:33:49,321 INFO L87 Difference]: Start difference. First operand 1561 states and 2446 transitions. Second operand 2 states. [2019-09-10 02:33:49,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:33:49,322 INFO L93 Difference]: Finished difference Result 2 states and 1 transitions. [2019-09-10 02:33:49,322 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-10 02:33:49,322 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 101 [2019-09-10 02:33:49,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:33:49,322 INFO L225 Difference]: With dead ends: 2 [2019-09-10 02:33:49,322 INFO L226 Difference]: Without dead ends: 0 [2019-09-10 02:33:49,323 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 02:33:49,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-10 02:33:49,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-10 02:33:49,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-10 02:33:49,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-10 02:33:49,324 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 101 [2019-09-10 02:33:49,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:33:49,324 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-10 02:33:49,324 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-10 02:33:49,324 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-10 02:33:49,324 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-10 02:33:49,329 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.09 02:33:49 BoogieIcfgContainer [2019-09-10 02:33:49,329 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-10 02:33:49,332 INFO L168 Benchmark]: Toolchain (without parser) took 11979.81 ms. Allocated memory was 134.7 MB in the beginning and 456.7 MB in the end (delta: 321.9 MB). Free memory was 86.9 MB in the beginning and 300.4 MB in the end (delta: -213.5 MB). Peak memory consumption was 108.4 MB. Max. memory is 7.1 GB. [2019-09-10 02:33:49,333 INFO L168 Benchmark]: CDTParser took 1.14 ms. Allocated memory is still 134.7 MB. Free memory was 108.0 MB in the beginning and 107.8 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-10 02:33:49,334 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1124.99 ms. Allocated memory was 134.7 MB in the beginning and 201.9 MB in the end (delta: 67.1 MB). Free memory was 86.7 MB in the beginning and 140.0 MB in the end (delta: -53.2 MB). Peak memory consumption was 34.2 MB. Max. memory is 7.1 GB. [2019-09-10 02:33:49,335 INFO L168 Benchmark]: Boogie Preprocessor took 226.27 ms. Allocated memory is still 201.9 MB. Free memory was 140.0 MB in the beginning and 130.9 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 7.1 GB. [2019-09-10 02:33:49,336 INFO L168 Benchmark]: RCFGBuilder took 2184.01 ms. Allocated memory was 201.9 MB in the beginning and 260.0 MB in the end (delta: 58.2 MB). Free memory was 130.2 MB in the beginning and 141.6 MB in the end (delta: -11.3 MB). Peak memory consumption was 91.4 MB. Max. memory is 7.1 GB. [2019-09-10 02:33:49,336 INFO L168 Benchmark]: TraceAbstraction took 8435.40 ms. Allocated memory was 260.0 MB in the beginning and 456.7 MB in the end (delta: 196.6 MB). Free memory was 139.6 MB in the beginning and 300.4 MB in the end (delta: -160.9 MB). Peak memory consumption was 35.7 MB. Max. memory is 7.1 GB. [2019-09-10 02:33:49,340 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.14 ms. Allocated memory is still 134.7 MB. Free memory was 108.0 MB in the beginning and 107.8 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1124.99 ms. Allocated memory was 134.7 MB in the beginning and 201.9 MB in the end (delta: 67.1 MB). Free memory was 86.7 MB in the beginning and 140.0 MB in the end (delta: -53.2 MB). Peak memory consumption was 34.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 226.27 ms. Allocated memory is still 201.9 MB. Free memory was 140.0 MB in the beginning and 130.9 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 2184.01 ms. Allocated memory was 201.9 MB in the beginning and 260.0 MB in the end (delta: 58.2 MB). Free memory was 130.2 MB in the beginning and 141.6 MB in the end (delta: -11.3 MB). Peak memory consumption was 91.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 8435.40 ms. Allocated memory was 260.0 MB in the beginning and 456.7 MB in the end (delta: 196.6 MB). Free memory was 139.6 MB in the beginning and 300.4 MB in the end (delta: -160.9 MB). Peak memory consumption was 35.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1471]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 74 procedures, 911 locations, 1 error locations. SAFE Result, 8.3s OverallTime, 13 OverallIterations, 2 TraceHistogramMax, 4.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 11825 SDtfs, 2126 SDslu, 47131 SDs, 0 SdLazy, 3012 SolverSat, 105 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 195 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1561occurred in iteration=12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.1s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 1.0 AbsIntWeakeningRatio, 2.31 AbsIntAvgWeakeningVarsNumRemoved, 0.0 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 13 MinimizatonAttempts, 14 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 1265 NumberOfCodeBlocks, 1265 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 1252 ConstructedInterpolants, 0 QuantifiedInterpolants, 158400 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 12 PerfectInterpolantSequences, 37/39 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...