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_product27.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-673a906-m [2019-10-03 02:45:57,134 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-03 02:45:57,137 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-03 02:45:57,161 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-03 02:45:57,161 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-03 02:45:57,163 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-03 02:45:57,165 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-03 02:45:57,175 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-03 02:45:57,177 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-03 02:45:57,178 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-03 02:45:57,179 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-03 02:45:57,180 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-03 02:45:57,181 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-03 02:45:57,182 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-03 02:45:57,183 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-03 02:45:57,184 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-03 02:45:57,185 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-03 02:45:57,186 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-03 02:45:57,187 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-03 02:45:57,189 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-03 02:45:57,191 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-03 02:45:57,192 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-03 02:45:57,193 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-03 02:45:57,194 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-03 02:45:57,196 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-03 02:45:57,196 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-03 02:45:57,197 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-03 02:45:57,198 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-03 02:45:57,198 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-03 02:45:57,199 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-03 02:45:57,199 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-03 02:45:57,200 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-03 02:45:57,201 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-03 02:45:57,202 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-03 02:45:57,203 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-03 02:45:57,203 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-03 02:45:57,203 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-03 02:45:57,204 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-03 02:45:57,204 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-03 02:45:57,205 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-03 02:45:57,206 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-03 02:45:57,206 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-10-03 02:45:57,222 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-03 02:45:57,222 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-03 02:45:57,223 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-10-03 02:45:57,223 INFO L138 SettingsManager]: * Log level for plugins=info [2019-10-03 02:45:57,224 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-03 02:45:57,224 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-03 02:45:57,224 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-10-03 02:45:57,224 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-10-03 02:45:57,224 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-03 02:45:57,225 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-10-03 02:45:57,225 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-03 02:45:57,226 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-03 02:45:57,226 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-03 02:45:57,226 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-03 02:45:57,226 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-03 02:45:57,226 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-03 02:45:57,227 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-03 02:45:57,227 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-03 02:45:57,227 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-03 02:45:57,227 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-03 02:45:57,228 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-03 02:45:57,228 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-10-03 02:45:57,228 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-03 02:45:57,228 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-03 02:45:57,228 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-03 02:45:57,229 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-03 02:45:57,229 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-03 02:45:57,229 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-03 02:45:57,229 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-03 02:45:57,229 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-10-03 02:45:57,273 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-03 02:45:57,291 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-03 02:45:57,296 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-03 02:45:57,297 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-03 02:45:57,298 INFO L275 PluginConnector]: CDTParser initialized [2019-10-03 02:45:57,299 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec3_product27.cil.c [2019-10-03 02:45:57,379 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/77e7a3922/6d6bae3ec45a4dce87826d4656e219c9/FLAGecc030053 [2019-10-03 02:45:58,059 INFO L306 CDTParser]: Found 1 translation units. [2019-10-03 02:45:58,060 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec3_product27.cil.c [2019-10-03 02:45:58,090 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/77e7a3922/6d6bae3ec45a4dce87826d4656e219c9/FLAGecc030053 [2019-10-03 02:45:58,239 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/77e7a3922/6d6bae3ec45a4dce87826d4656e219c9 [2019-10-03 02:45:58,248 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-03 02:45:58,249 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-03 02:45:58,250 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-03 02:45:58,250 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-03 02:45:58,254 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-03 02:45:58,255 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 02:45:58" (1/1) ... [2019-10-03 02:45:58,258 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a029f66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:45:58, skipping insertion in model container [2019-10-03 02:45:58,258 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 02:45:58" (1/1) ... [2019-10-03 02:45:58,266 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-03 02:45:58,357 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-03 02:45:59,101 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 02:45:59,123 INFO L188 MainTranslator]: Completed pre-run [2019-10-03 02:45:59,291 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 02:45:59,390 INFO L192 MainTranslator]: Completed translation [2019-10-03 02:45:59,391 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:45:59 WrapperNode [2019-10-03 02:45:59,391 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-03 02:45:59,392 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-03 02:45:59,392 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-03 02:45:59,392 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-03 02:45:59,411 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:45:59" (1/1) ... [2019-10-03 02:45:59,413 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:45:59" (1/1) ... [2019-10-03 02:45:59,479 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:45:59" (1/1) ... [2019-10-03 02:45:59,482 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:45:59" (1/1) ... [2019-10-03 02:45:59,574 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:45:59" (1/1) ... [2019-10-03 02:45:59,623 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:45:59" (1/1) ... [2019-10-03 02:45:59,650 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:45:59" (1/1) ... [2019-10-03 02:45:59,672 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-03 02:45:59,673 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-03 02:45:59,673 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-03 02:45:59,674 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-03 02:45:59,676 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:45:59" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-03 02:45:59,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-03 02:45:59,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-03 02:45:59,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-03 02:45:59,764 INFO L138 BoogieDeclarations]: Found implementation of procedure initTopDown [2019-10-03 02:45:59,765 INFO L138 BoogieDeclarations]: Found implementation of procedure initBottomUp [2019-10-03 02:45:59,765 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2019-10-03 02:45:59,765 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator__wrappee__base [2019-10-03 02:45:59,765 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2019-10-03 02:45:59,766 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator__wrappee__base [2019-10-03 02:45:59,766 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator__wrappee__weight [2019-10-03 02:45:59,767 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2019-10-03 02:45:59,767 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2019-10-03 02:45:59,768 INFO L138 BoogieDeclarations]: Found implementation of procedure resetFloorButton [2019-10-03 02:45:59,769 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2019-10-03 02:45:59,769 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2019-10-03 02:45:59,770 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2019-10-03 02:45:59,770 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentHeading [2019-10-03 02:45:59,772 INFO L138 BoogieDeclarations]: Found implementation of procedure isEmpty [2019-10-03 02:45:59,772 INFO L138 BoogieDeclarations]: Found implementation of procedure anyStopRequested [2019-10-03 02:45:59,772 INFO L138 BoogieDeclarations]: Found implementation of procedure isIdle [2019-10-03 02:45:59,773 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__empty [2019-10-03 02:45:59,773 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2019-10-03 02:45:59,773 INFO L138 BoogieDeclarations]: Found implementation of procedure isAnyLiftButtonPressed [2019-10-03 02:45:59,773 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2019-10-03 02:45:59,774 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__empty [2019-10-03 02:45:59,775 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor [2019-10-03 02:45:59,775 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2019-10-03 02:45:59,775 INFO L138 BoogieDeclarations]: Found implementation of procedure processWaitingOnFloor [2019-10-03 02:45:59,775 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-03 02:45:59,775 INFO L138 BoogieDeclarations]: Found implementation of procedure printState [2019-10-03 02:45:59,776 INFO L138 BoogieDeclarations]: Found implementation of procedure existInLiftCallsInDirection [2019-10-03 02:45:59,776 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2019-10-03 02:45:59,776 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloor [2019-10-03 02:45:59,776 INFO L138 BoogieDeclarations]: Found implementation of procedure spec1 [2019-10-03 02:45:59,777 INFO L138 BoogieDeclarations]: Found implementation of procedure spec14 [2019-10-03 02:45:59,777 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2019-10-03 02:45:59,777 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2019-10-03 02:45:59,777 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2019-10-03 02:45:59,778 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2019-10-03 02:45:59,778 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__2 [2019-10-03 02:45:59,779 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-03 02:45:59,779 INFO L138 BoogieDeclarations]: Found implementation of procedure get_nondetMinMax07 [2019-10-03 02:45:59,779 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2019-10-03 02:45:59,779 INFO L138 BoogieDeclarations]: Found implementation of procedure aliceCall [2019-10-03 02:45:59,780 INFO L138 BoogieDeclarations]: Found implementation of procedure angelinaCall [2019-10-03 02:45:59,780 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckCall [2019-10-03 02:45:59,780 INFO L138 BoogieDeclarations]: Found implementation of procedure monicaCall [2019-10-03 02:45:59,780 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2019-10-03 02:45:59,780 INFO L138 BoogieDeclarations]: Found implementation of procedure threeTS [2019-10-03 02:45:59,781 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-03 02:45:59,781 INFO L138 BoogieDeclarations]: Found implementation of procedure randomSequenceOfActions [2019-10-03 02:45:59,781 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest_Simple [2019-10-03 02:45:59,781 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification1 [2019-10-03 02:45:59,782 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-03 02:45:59,782 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification3 [2019-10-03 02:45:59,782 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-03 02:45:59,782 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-03 02:45:59,782 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-03 02:45:59,783 INFO L138 BoogieDeclarations]: Found implementation of procedure initFloors [2019-10-03 02:45:59,783 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2019-10-03 02:45:59,783 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2019-10-03 02:45:59,783 INFO L138 BoogieDeclarations]: Found implementation of procedure callOnFloor [2019-10-03 02:45:59,784 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2019-10-03 02:45:59,784 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2019-10-03 02:45:59,784 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2019-10-03 02:45:59,785 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2019-10-03 02:45:59,785 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-03 02:45:59,786 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-03 02:45:59,786 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-03 02:45:59,786 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-03 02:45:59,786 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-03 02:45:59,786 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-03 02:45:59,787 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-03 02:45:59,788 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-03 02:45:59,788 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-03 02:45:59,788 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-03 02:45:59,788 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-03 02:45:59,788 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-03 02:45:59,789 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-03 02:45:59,789 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-03 02:45:59,789 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2019-10-03 02:45:59,790 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2019-10-03 02:45:59,790 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2019-10-03 02:45:59,790 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2019-10-03 02:45:59,790 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2019-10-03 02:45:59,791 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2019-10-03 02:45:59,791 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2019-10-03 02:45:59,792 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2019-10-03 02:45:59,792 INFO L130 BoogieDeclarations]: Found specification of procedure initFloors [2019-10-03 02:45:59,793 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-03 02:45:59,793 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2019-10-03 02:45:59,793 INFO L130 BoogieDeclarations]: Found specification of procedure printState [2019-10-03 02:45:59,793 INFO L130 BoogieDeclarations]: Found specification of procedure isEmpty [2019-10-03 02:45:59,793 INFO L130 BoogieDeclarations]: Found specification of procedure isAnyLiftButtonPressed [2019-10-03 02:45:59,794 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2019-10-03 02:45:59,794 INFO L130 BoogieDeclarations]: Found specification of procedure initTopDown [2019-10-03 02:45:59,794 INFO L130 BoogieDeclarations]: Found specification of procedure initBottomUp [2019-10-03 02:45:59,794 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2019-10-03 02:45:59,794 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2019-10-03 02:45:59,795 INFO L130 BoogieDeclarations]: Found specification of procedure isIdle [2019-10-03 02:45:59,795 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2019-10-03 02:45:59,795 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloor [2019-10-03 02:45:59,795 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator__wrappee__base [2019-10-03 02:45:59,795 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator__wrappee__base [2019-10-03 02:45:59,795 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator__wrappee__weight [2019-10-03 02:45:59,796 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2019-10-03 02:45:59,796 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2019-10-03 02:45:59,796 INFO L130 BoogieDeclarations]: Found specification of procedure resetFloorButton [2019-10-03 02:45:59,796 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentHeading [2019-10-03 02:45:59,796 INFO L130 BoogieDeclarations]: Found specification of procedure anyStopRequested [2019-10-03 02:45:59,797 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__empty [2019-10-03 02:45:59,797 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2019-10-03 02:45:59,797 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2019-10-03 02:45:59,797 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__empty [2019-10-03 02:45:59,797 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor [2019-10-03 02:45:59,797 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2019-10-03 02:45:59,798 INFO L130 BoogieDeclarations]: Found specification of procedure processWaitingOnFloor [2019-10-03 02:45:59,799 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2019-10-03 02:45:59,799 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__2 [2019-10-03 02:45:59,800 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-03 02:45:59,800 INFO L130 BoogieDeclarations]: Found specification of procedure existInLiftCallsInDirection [2019-10-03 02:45:59,801 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2019-10-03 02:45:59,802 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2019-10-03 02:45:59,803 INFO L130 BoogieDeclarations]: Found specification of procedure spec1 [2019-10-03 02:45:59,803 INFO L130 BoogieDeclarations]: Found specification of procedure spec14 [2019-10-03 02:45:59,803 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-03 02:45:59,804 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2019-10-03 02:45:59,804 INFO L130 BoogieDeclarations]: Found specification of procedure threeTS [2019-10-03 02:45:59,804 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-03 02:45:59,804 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-03 02:45:59,805 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-03 02:45:59,805 INFO L130 BoogieDeclarations]: Found specification of procedure get_nondetMinMax07 [2019-10-03 02:45:59,805 INFO L130 BoogieDeclarations]: Found specification of procedure aliceCall [2019-10-03 02:45:59,806 INFO L130 BoogieDeclarations]: Found specification of procedure angelinaCall [2019-10-03 02:45:59,806 INFO L130 BoogieDeclarations]: Found specification of procedure chuckCall [2019-10-03 02:45:59,806 INFO L130 BoogieDeclarations]: Found specification of procedure monicaCall [2019-10-03 02:45:59,806 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2019-10-03 02:45:59,807 INFO L130 BoogieDeclarations]: Found specification of procedure randomSequenceOfActions [2019-10-03 02:45:59,808 INFO L130 BoogieDeclarations]: Found specification of procedure runTest_Simple [2019-10-03 02:45:59,812 INFO L130 BoogieDeclarations]: Found specification of procedure Specification1 [2019-10-03 02:45:59,813 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-03 02:45:59,814 INFO L130 BoogieDeclarations]: Found specification of procedure Specification3 [2019-10-03 02:45:59,814 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-03 02:45:59,822 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-03 02:45:59,822 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-03 02:45:59,823 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-03 02:45:59,823 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-03 02:45:59,823 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-03 02:45:59,823 INFO L130 BoogieDeclarations]: Found specification of procedure callOnFloor [2019-10-03 02:45:59,823 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-03 02:45:59,823 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-03 02:45:59,824 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-03 02:45:59,824 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-03 02:45:59,824 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-03 02:45:59,824 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-03 02:45:59,825 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-03 02:45:59,825 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-03 02:45:59,825 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-03 02:45:59,826 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-03 02:45:59,826 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-03 02:45:59,826 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-03 02:45:59,826 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-03 02:45:59,826 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-03 02:45:59,826 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-03 02:45:59,827 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-03 02:45:59,827 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-03 02:45:59,827 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-03 02:45:59,827 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-03 02:45:59,828 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-03 02:46:02,499 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-03 02:46:02,499 INFO L283 CfgBuilder]: Removed 10 assume(true) statements. [2019-10-03 02:46:02,502 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 02:46:02 BoogieIcfgContainer [2019-10-03 02:46:02,502 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-03 02:46:02,503 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-03 02:46:02,503 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-03 02:46:02,507 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-03 02:46:02,508 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.10 02:45:58" (1/3) ... [2019-10-03 02:46:02,509 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5967a52f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 02:46:02, skipping insertion in model container [2019-10-03 02:46:02,509 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:45:59" (2/3) ... [2019-10-03 02:46:02,509 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5967a52f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 02:46:02, skipping insertion in model container [2019-10-03 02:46:02,510 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 02:46:02" (3/3) ... [2019-10-03 02:46:02,511 INFO L109 eAbstractionObserver]: Analyzing ICFG elevator_spec3_product27.cil.c [2019-10-03 02:46:02,522 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-03 02:46:02,536 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-03 02:46:02,556 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-03 02:46:02,590 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-10-03 02:46:02,591 INFO L378 AbstractCegarLoop]: Hoare is false [2019-10-03 02:46:02,591 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-03 02:46:02,591 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-03 02:46:02,591 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-03 02:46:02,591 INFO L382 AbstractCegarLoop]: Difference is false [2019-10-03 02:46:02,591 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-03 02:46:02,592 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-03 02:46:02,639 INFO L276 IsEmpty]: Start isEmpty. Operand 806 states. [2019-10-03 02:46:02,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2019-10-03 02:46:02,683 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:46:02,685 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:46:02,688 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:46:02,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:46:02,694 INFO L82 PathProgramCache]: Analyzing trace with hash -1573274130, now seen corresponding path program 1 times [2019-10-03 02:46:02,696 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:46:02,757 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:46:02,757 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:46:02,757 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:46:02,758 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:46:03,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:46:03,487 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2019-10-03 02:46:03,491 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:46:03,491 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-03 02:46:03,492 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:46:03,500 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-03 02:46:03,521 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-03 02:46:03,522 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-03 02:46:03,525 INFO L87 Difference]: Start difference. First operand 806 states. Second operand 7 states. [2019-10-03 02:46:03,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:46:03,872 INFO L93 Difference]: Finished difference Result 665 states and 1052 transitions. [2019-10-03 02:46:03,873 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-03 02:46:03,874 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 141 [2019-10-03 02:46:03,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:46:03,918 INFO L225 Difference]: With dead ends: 665 [2019-10-03 02:46:03,918 INFO L226 Difference]: Without dead ends: 654 [2019-10-03 02:46:03,920 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-10-03 02:46:03,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 654 states. [2019-10-03 02:46:04,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 654 to 652. [2019-10-03 02:46:04,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 652 states. [2019-10-03 02:46:04,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 652 states to 652 states and 1035 transitions. [2019-10-03 02:46:04,039 INFO L78 Accepts]: Start accepts. Automaton has 652 states and 1035 transitions. Word has length 141 [2019-10-03 02:46:04,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:46:04,040 INFO L475 AbstractCegarLoop]: Abstraction has 652 states and 1035 transitions. [2019-10-03 02:46:04,040 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-03 02:46:04,040 INFO L276 IsEmpty]: Start isEmpty. Operand 652 states and 1035 transitions. [2019-10-03 02:46:04,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2019-10-03 02:46:04,050 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:46:04,051 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:46:04,051 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:46:04,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:46:04,053 INFO L82 PathProgramCache]: Analyzing trace with hash 2025459655, now seen corresponding path program 1 times [2019-10-03 02:46:04,053 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:46:04,057 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:46:04,058 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:46:04,058 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:46:04,058 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:46:04,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:46:04,323 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2019-10-03 02:46:04,324 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:46:04,324 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-03 02:46:04,324 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:46:04,326 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-03 02:46:04,326 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-03 02:46:04,326 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-03 02:46:04,327 INFO L87 Difference]: Start difference. First operand 652 states and 1035 transitions. Second operand 4 states. [2019-10-03 02:46:04,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:46:04,382 INFO L93 Difference]: Finished difference Result 650 states and 1030 transitions. [2019-10-03 02:46:04,382 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-03 02:46:04,383 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 142 [2019-10-03 02:46:04,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:46:04,388 INFO L225 Difference]: With dead ends: 650 [2019-10-03 02:46:04,388 INFO L226 Difference]: Without dead ends: 634 [2019-10-03 02:46:04,389 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-03 02:46:04,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 634 states. [2019-10-03 02:46:04,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 634 to 634. [2019-10-03 02:46:04,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 634 states. [2019-10-03 02:46:04,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 634 states to 634 states and 1002 transitions. [2019-10-03 02:46:04,419 INFO L78 Accepts]: Start accepts. Automaton has 634 states and 1002 transitions. Word has length 142 [2019-10-03 02:46:04,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:46:04,420 INFO L475 AbstractCegarLoop]: Abstraction has 634 states and 1002 transitions. [2019-10-03 02:46:04,420 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-03 02:46:04,420 INFO L276 IsEmpty]: Start isEmpty. Operand 634 states and 1002 transitions. [2019-10-03 02:46:04,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2019-10-03 02:46:04,425 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:46:04,425 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:46:04,425 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:46:04,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:46:04,426 INFO L82 PathProgramCache]: Analyzing trace with hash -1890862467, now seen corresponding path program 1 times [2019-10-03 02:46:04,426 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:46:04,429 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:46:04,430 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:46:04,430 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:46:04,430 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:46:04,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:46:04,664 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2019-10-03 02:46:04,667 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:46:04,668 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-03 02:46:04,668 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:46:04,668 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-03 02:46:04,669 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-03 02:46:04,669 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-03 02:46:04,669 INFO L87 Difference]: Start difference. First operand 634 states and 1002 transitions. Second operand 7 states. [2019-10-03 02:46:04,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:46:04,785 INFO L93 Difference]: Finished difference Result 637 states and 1005 transitions. [2019-10-03 02:46:04,785 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-03 02:46:04,786 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 142 [2019-10-03 02:46:04,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:46:04,797 INFO L225 Difference]: With dead ends: 637 [2019-10-03 02:46:04,797 INFO L226 Difference]: Without dead ends: 628 [2019-10-03 02:46:04,798 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-10-03 02:46:04,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 628 states. [2019-10-03 02:46:04,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 628 to 628. [2019-10-03 02:46:04,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 628 states. [2019-10-03 02:46:04,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 628 states to 628 states and 989 transitions. [2019-10-03 02:46:04,844 INFO L78 Accepts]: Start accepts. Automaton has 628 states and 989 transitions. Word has length 142 [2019-10-03 02:46:04,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:46:04,846 INFO L475 AbstractCegarLoop]: Abstraction has 628 states and 989 transitions. [2019-10-03 02:46:04,846 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-03 02:46:04,846 INFO L276 IsEmpty]: Start isEmpty. Operand 628 states and 989 transitions. [2019-10-03 02:46:04,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2019-10-03 02:46:04,854 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:46:04,854 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:46:04,855 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:46:04,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:46:04,855 INFO L82 PathProgramCache]: Analyzing trace with hash -1767299342, now seen corresponding path program 1 times [2019-10-03 02:46:04,855 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:46:04,860 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:46:04,861 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:46:04,861 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:46:04,861 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:46:04,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:46:05,129 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2019-10-03 02:46:05,129 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:46:05,130 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-03 02:46:05,130 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:46:05,131 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-03 02:46:05,131 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-03 02:46:05,132 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-03 02:46:05,133 INFO L87 Difference]: Start difference. First operand 628 states and 989 transitions. Second operand 7 states. [2019-10-03 02:46:05,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:46:05,236 INFO L93 Difference]: Finished difference Result 631 states and 992 transitions. [2019-10-03 02:46:05,237 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-03 02:46:05,237 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 143 [2019-10-03 02:46:05,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:46:05,243 INFO L225 Difference]: With dead ends: 631 [2019-10-03 02:46:05,243 INFO L226 Difference]: Without dead ends: 622 [2019-10-03 02:46:05,244 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-10-03 02:46:05,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 622 states. [2019-10-03 02:46:05,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 622 to 622. [2019-10-03 02:46:05,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 622 states. [2019-10-03 02:46:05,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 622 states to 622 states and 976 transitions. [2019-10-03 02:46:05,266 INFO L78 Accepts]: Start accepts. Automaton has 622 states and 976 transitions. Word has length 143 [2019-10-03 02:46:05,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:46:05,267 INFO L475 AbstractCegarLoop]: Abstraction has 622 states and 976 transitions. [2019-10-03 02:46:05,267 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-03 02:46:05,267 INFO L276 IsEmpty]: Start isEmpty. Operand 622 states and 976 transitions. [2019-10-03 02:46:05,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2019-10-03 02:46:05,271 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:46:05,271 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:46:05,271 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:46:05,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:46:05,272 INFO L82 PathProgramCache]: Analyzing trace with hash -852942783, now seen corresponding path program 1 times [2019-10-03 02:46:05,272 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:46:05,276 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:46:05,276 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:46:05,276 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:46:05,276 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:46:05,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:46:05,495 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2019-10-03 02:46:05,495 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:46:05,496 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-03 02:46:05,496 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:46:05,496 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-03 02:46:05,497 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-03 02:46:05,497 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-03 02:46:05,498 INFO L87 Difference]: Start difference. First operand 622 states and 976 transitions. Second operand 7 states. [2019-10-03 02:46:05,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:46:05,598 INFO L93 Difference]: Finished difference Result 625 states and 979 transitions. [2019-10-03 02:46:05,599 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-03 02:46:05,599 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 144 [2019-10-03 02:46:05,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:46:05,614 INFO L225 Difference]: With dead ends: 625 [2019-10-03 02:46:05,614 INFO L226 Difference]: Without dead ends: 616 [2019-10-03 02:46:05,615 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-10-03 02:46:05,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 616 states. [2019-10-03 02:46:05,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 616 to 616. [2019-10-03 02:46:05,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 616 states. [2019-10-03 02:46:05,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 616 states to 616 states and 963 transitions. [2019-10-03 02:46:05,639 INFO L78 Accepts]: Start accepts. Automaton has 616 states and 963 transitions. Word has length 144 [2019-10-03 02:46:05,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:46:05,640 INFO L475 AbstractCegarLoop]: Abstraction has 616 states and 963 transitions. [2019-10-03 02:46:05,640 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-03 02:46:05,640 INFO L276 IsEmpty]: Start isEmpty. Operand 616 states and 963 transitions. [2019-10-03 02:46:05,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2019-10-03 02:46:05,644 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:46:05,645 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:46:05,645 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:46:05,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:46:05,646 INFO L82 PathProgramCache]: Analyzing trace with hash -2091889598, now seen corresponding path program 1 times [2019-10-03 02:46:05,646 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:46:05,651 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:46:05,651 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:46:05,651 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:46:05,651 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:46:05,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:46:05,919 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2019-10-03 02:46:05,920 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:46:05,920 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-03 02:46:05,923 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:46:05,923 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-03 02:46:05,924 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-03 02:46:05,925 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-03 02:46:05,925 INFO L87 Difference]: Start difference. First operand 616 states and 963 transitions. Second operand 7 states. [2019-10-03 02:46:06,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:46:06,019 INFO L93 Difference]: Finished difference Result 619 states and 966 transitions. [2019-10-03 02:46:06,019 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-03 02:46:06,019 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 144 [2019-10-03 02:46:06,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:46:06,030 INFO L225 Difference]: With dead ends: 619 [2019-10-03 02:46:06,030 INFO L226 Difference]: Without dead ends: 616 [2019-10-03 02:46:06,031 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-10-03 02:46:06,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 616 states. [2019-10-03 02:46:06,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 616 to 616. [2019-10-03 02:46:06,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 616 states. [2019-10-03 02:46:06,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 616 states to 616 states and 962 transitions. [2019-10-03 02:46:06,059 INFO L78 Accepts]: Start accepts. Automaton has 616 states and 962 transitions. Word has length 144 [2019-10-03 02:46:06,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:46:06,061 INFO L475 AbstractCegarLoop]: Abstraction has 616 states and 962 transitions. [2019-10-03 02:46:06,062 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-03 02:46:06,062 INFO L276 IsEmpty]: Start isEmpty. Operand 616 states and 962 transitions. [2019-10-03 02:46:06,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2019-10-03 02:46:06,066 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:46:06,066 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:46:06,067 INFO L418 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:46:06,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:46:06,067 INFO L82 PathProgramCache]: Analyzing trace with hash -1193793546, now seen corresponding path program 1 times [2019-10-03 02:46:06,067 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:46:06,071 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:46:06,071 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:46:06,071 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:46:06,071 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:46:06,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:46:06,232 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2019-10-03 02:46:06,232 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:46:06,232 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-03 02:46:06,232 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:46:06,233 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-03 02:46:06,233 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-03 02:46:06,234 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-03 02:46:06,234 INFO L87 Difference]: Start difference. First operand 616 states and 962 transitions. Second operand 5 states. [2019-10-03 02:46:06,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:46:06,342 INFO L93 Difference]: Finished difference Result 618 states and 963 transitions. [2019-10-03 02:46:06,342 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-03 02:46:06,343 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 145 [2019-10-03 02:46:06,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:46:06,350 INFO L225 Difference]: With dead ends: 618 [2019-10-03 02:46:06,350 INFO L226 Difference]: Without dead ends: 616 [2019-10-03 02:46:06,351 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-03 02:46:06,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 616 states. [2019-10-03 02:46:06,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 616 to 616. [2019-10-03 02:46:06,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 616 states. [2019-10-03 02:46:06,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 616 states to 616 states and 961 transitions. [2019-10-03 02:46:06,379 INFO L78 Accepts]: Start accepts. Automaton has 616 states and 961 transitions. Word has length 145 [2019-10-03 02:46:06,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:46:06,380 INFO L475 AbstractCegarLoop]: Abstraction has 616 states and 961 transitions. [2019-10-03 02:46:06,380 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-03 02:46:06,380 INFO L276 IsEmpty]: Start isEmpty. Operand 616 states and 961 transitions. [2019-10-03 02:46:06,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2019-10-03 02:46:06,385 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:46:06,385 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:46:06,386 INFO L418 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:46:06,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:46:06,387 INFO L82 PathProgramCache]: Analyzing trace with hash -1917028761, now seen corresponding path program 1 times [2019-10-03 02:46:06,387 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:46:06,392 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:46:06,393 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:46:06,393 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:46:06,393 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:46:06,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:46:06,628 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2019-10-03 02:46:06,628 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:46:06,629 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-03 02:46:06,629 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:46:06,630 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-03 02:46:06,630 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-03 02:46:06,630 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-03 02:46:06,631 INFO L87 Difference]: Start difference. First operand 616 states and 961 transitions. Second operand 5 states. [2019-10-03 02:46:06,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:46:06,728 INFO L93 Difference]: Finished difference Result 618 states and 962 transitions. [2019-10-03 02:46:06,729 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-03 02:46:06,729 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 146 [2019-10-03 02:46:06,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:46:06,736 INFO L225 Difference]: With dead ends: 618 [2019-10-03 02:46:06,737 INFO L226 Difference]: Without dead ends: 616 [2019-10-03 02:46:06,737 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-03 02:46:06,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 616 states. [2019-10-03 02:46:06,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 616 to 616. [2019-10-03 02:46:06,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 616 states. [2019-10-03 02:46:06,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 616 states to 616 states and 960 transitions. [2019-10-03 02:46:06,769 INFO L78 Accepts]: Start accepts. Automaton has 616 states and 960 transitions. Word has length 146 [2019-10-03 02:46:06,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:46:06,770 INFO L475 AbstractCegarLoop]: Abstraction has 616 states and 960 transitions. [2019-10-03 02:46:06,775 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-03 02:46:06,776 INFO L276 IsEmpty]: Start isEmpty. Operand 616 states and 960 transitions. [2019-10-03 02:46:06,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2019-10-03 02:46:06,782 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:46:06,783 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:46:06,783 INFO L418 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:46:06,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:46:06,784 INFO L82 PathProgramCache]: Analyzing trace with hash -1209344655, now seen corresponding path program 1 times [2019-10-03 02:46:06,784 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:46:06,790 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:46:06,790 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:46:06,791 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:46:06,791 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:46:06,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:46:07,042 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2019-10-03 02:46:07,042 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:46:07,043 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-03 02:46:07,043 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:46:07,044 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-03 02:46:07,044 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-03 02:46:07,044 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-03 02:46:07,044 INFO L87 Difference]: Start difference. First operand 616 states and 960 transitions. Second operand 5 states. [2019-10-03 02:46:07,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:46:07,106 INFO L93 Difference]: Finished difference Result 618 states and 961 transitions. [2019-10-03 02:46:07,106 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-03 02:46:07,107 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 147 [2019-10-03 02:46:07,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:46:07,111 INFO L225 Difference]: With dead ends: 618 [2019-10-03 02:46:07,112 INFO L226 Difference]: Without dead ends: 616 [2019-10-03 02:46:07,113 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-03 02:46:07,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 616 states. [2019-10-03 02:46:07,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 616 to 616. [2019-10-03 02:46:07,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 616 states. [2019-10-03 02:46:07,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 616 states to 616 states and 959 transitions. [2019-10-03 02:46:07,140 INFO L78 Accepts]: Start accepts. Automaton has 616 states and 959 transitions. Word has length 147 [2019-10-03 02:46:07,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:46:07,141 INFO L475 AbstractCegarLoop]: Abstraction has 616 states and 959 transitions. [2019-10-03 02:46:07,141 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-03 02:46:07,141 INFO L276 IsEmpty]: Start isEmpty. Operand 616 states and 959 transitions. [2019-10-03 02:46:07,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2019-10-03 02:46:07,145 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:46:07,146 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:46:07,146 INFO L418 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:46:07,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:46:07,146 INFO L82 PathProgramCache]: Analyzing trace with hash 907165442, now seen corresponding path program 1 times [2019-10-03 02:46:07,146 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:46:07,150 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:46:07,151 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:46:07,151 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:46:07,151 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:46:07,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:46:07,303 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2019-10-03 02:46:07,304 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:46:07,304 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-03 02:46:07,304 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:46:07,305 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-03 02:46:07,305 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-03 02:46:07,305 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-03 02:46:07,305 INFO L87 Difference]: Start difference. First operand 616 states and 959 transitions. Second operand 5 states. [2019-10-03 02:46:07,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:46:07,360 INFO L93 Difference]: Finished difference Result 618 states and 960 transitions. [2019-10-03 02:46:07,360 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-03 02:46:07,360 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 148 [2019-10-03 02:46:07,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:46:07,365 INFO L225 Difference]: With dead ends: 618 [2019-10-03 02:46:07,366 INFO L226 Difference]: Without dead ends: 616 [2019-10-03 02:46:07,366 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-03 02:46:07,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 616 states. [2019-10-03 02:46:07,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 616 to 616. [2019-10-03 02:46:07,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 616 states. [2019-10-03 02:46:07,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 616 states to 616 states and 958 transitions. [2019-10-03 02:46:07,386 INFO L78 Accepts]: Start accepts. Automaton has 616 states and 958 transitions. Word has length 148 [2019-10-03 02:46:07,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:46:07,386 INFO L475 AbstractCegarLoop]: Abstraction has 616 states and 958 transitions. [2019-10-03 02:46:07,387 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-03 02:46:07,387 INFO L276 IsEmpty]: Start isEmpty. Operand 616 states and 958 transitions. [2019-10-03 02:46:07,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2019-10-03 02:46:07,392 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:46:07,392 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:46:07,393 INFO L418 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:46:07,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:46:07,393 INFO L82 PathProgramCache]: Analyzing trace with hash -547358996, now seen corresponding path program 1 times [2019-10-03 02:46:07,393 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:46:07,398 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:46:07,399 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:46:07,399 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:46:07,399 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:46:07,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:46:07,619 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2019-10-03 02:46:07,620 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-03 02:46:07,620 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-10-03 02:46:07,621 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 150 with the following transitions: [2019-10-03 02:46:07,625 INFO L207 CegarAbsIntRunner]: [55], [56], [62], [63], [320], [324], [327], [384], [385], [387], [388], [389], [391], [394], [396], [400], [449], [451], [453], [859], [862], [959], [962], [967], [970], [1036], [1041], [1074], [1075], [1110], [1112], [1155], [1157], [1160], [1162], [1168], [1172], [1173], [1174], [1175], [1211], [1247], [1283], [1319], [1322], [1325], [1358], [1411], [1416], [1421], [1426], [1431], [1434], [1438], [1623], [1626], [1648], [1649], [1662], [1665], [1671], [1675], [1788], [1789], [1881], [1884], [1886], [1889], [1915], [1917], [1919], [1922], [1935], [1949], [1963], [1977], [1991], [2065], [2331], [2335], [2338], [2356], [2529], [2530], [2531], [2532], [2533], [2534], [2535], [2536], [2537], [2571], [2572], [2573], [2574], [2575], [2576], [2579], [2580], [2581], [2582], [2583], [2584], [2585], [2586], [2587], [2637], [2638], [2639], [2640], [2669], [2670], [2671], [2672], [2683], [2701], [2702], [2707], [2708], [2709], [2710], [2715], [2716], [2717], [2743], [2767], [2768], [2769], [2775], [2776], [2777], [2778], [2809], [2810], [2811] [2019-10-03 02:46:07,710 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-10-03 02:46:07,710 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-03 02:46:07,854 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-10-03 02:46:07,856 INFO L272 AbstractInterpreter]: Visited 2 different actions 2 times. Never merged. Never widened. Performed 148 root evaluator evaluations with a maximum evaluation depth of 0. Performed 148 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 256 variables. [2019-10-03 02:46:07,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:46:07,862 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-10-03 02:46:07,963 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-10-03 02:46:07,963 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-10-03 02:46:07,972 INFO L420 sIntCurrentIteration]: We unified 148 AI predicates to 148 [2019-10-03 02:46:07,972 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-10-03 02:46:07,973 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-03 02:46:07,973 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [11] total 11 [2019-10-03 02:46:07,973 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:46:07,975 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-03 02:46:07,975 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-03 02:46:07,975 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-03 02:46:07,975 INFO L87 Difference]: Start difference. First operand 616 states and 958 transitions. Second operand 2 states. [2019-10-03 02:46:07,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:46:07,976 INFO L93 Difference]: Finished difference Result 2 states and 1 transitions. [2019-10-03 02:46:07,976 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-03 02:46:07,976 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 149 [2019-10-03 02:46:07,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:46:07,977 INFO L225 Difference]: With dead ends: 2 [2019-10-03 02:46:07,977 INFO L226 Difference]: Without dead ends: 0 [2019-10-03 02:46:07,978 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-03 02:46:07,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-03 02:46:07,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-03 02:46:07,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-03 02:46:07,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-03 02:46:07,978 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 149 [2019-10-03 02:46:07,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:46:07,979 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-03 02:46:07,979 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-03 02:46:07,979 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-03 02:46:07,979 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-03 02:46:07,984 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.10 02:46:07 BoogieIcfgContainer [2019-10-03 02:46:07,985 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-03 02:46:07,988 INFO L168 Benchmark]: Toolchain (without parser) took 9737.13 ms. Allocated memory was 137.9 MB in the beginning and 429.4 MB in the end (delta: 291.5 MB). Free memory was 82.5 MB in the beginning and 168.4 MB in the end (delta: -85.9 MB). Peak memory consumption was 205.6 MB. Max. memory is 7.1 GB. [2019-10-03 02:46:07,989 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 137.9 MB. Free memory was 103.8 MB in the beginning and 103.6 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-10-03 02:46:07,991 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1141.32 ms. Allocated memory was 137.9 MB in the beginning and 200.3 MB in the end (delta: 62.4 MB). Free memory was 82.3 MB in the beginning and 138.7 MB in the end (delta: -56.4 MB). Peak memory consumption was 31.8 MB. Max. memory is 7.1 GB. [2019-10-03 02:46:07,993 INFO L168 Benchmark]: Boogie Preprocessor took 280.50 ms. Allocated memory is still 200.3 MB. Free memory was 138.7 MB in the beginning and 129.1 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. [2019-10-03 02:46:07,998 INFO L168 Benchmark]: RCFGBuilder took 2829.25 ms. Allocated memory was 200.3 MB in the beginning and 273.7 MB in the end (delta: 73.4 MB). Free memory was 129.1 MB in the beginning and 155.8 MB in the end (delta: -26.7 MB). Peak memory consumption was 92.4 MB. Max. memory is 7.1 GB. [2019-10-03 02:46:08,000 INFO L168 Benchmark]: TraceAbstraction took 5481.72 ms. Allocated memory was 273.7 MB in the beginning and 429.4 MB in the end (delta: 155.7 MB). Free memory was 155.8 MB in the beginning and 168.4 MB in the end (delta: -12.6 MB). Peak memory consumption was 143.1 MB. Max. memory is 7.1 GB. [2019-10-03 02:46:08,011 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 137.9 MB. Free memory was 103.8 MB in the beginning and 103.6 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1141.32 ms. Allocated memory was 137.9 MB in the beginning and 200.3 MB in the end (delta: 62.4 MB). Free memory was 82.3 MB in the beginning and 138.7 MB in the end (delta: -56.4 MB). Peak memory consumption was 31.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 280.50 ms. Allocated memory is still 200.3 MB. Free memory was 138.7 MB in the beginning and 129.1 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 2829.25 ms. Allocated memory was 200.3 MB in the beginning and 273.7 MB in the end (delta: 73.4 MB). Free memory was 129.1 MB in the beginning and 155.8 MB in the end (delta: -26.7 MB). Peak memory consumption was 92.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 5481.72 ms. Allocated memory was 273.7 MB in the beginning and 429.4 MB in the end (delta: 155.7 MB). Free memory was 155.8 MB in the beginning and 168.4 MB in the end (delta: -12.6 MB). Peak memory consumption was 143.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3438]: 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 77 procedures, 933 locations, 1 error locations. SAFE Result, 5.4s OverallTime, 11 OverallIterations, 3 TraceHistogramMax, 1.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 9736 SDtfs, 373 SDslu, 37647 SDs, 0 SdLazy, 470 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 217 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=806occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.2s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 1.0 AbsIntWeakeningRatio, 1.9797297297297298 AbsIntAvgWeakeningVarsNumRemoved, 0.0 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 11 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 1591 NumberOfCodeBlocks, 1591 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 1580 ConstructedInterpolants, 0 QuantifiedInterpolants, 264960 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 10 PerfectInterpolantSequences, 229/231 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...